La vie secrète des objets ordinaires que vous utilisez chaque jour

Sympa

Vous êtes-vous déjà demandé quels secrets cachés se trouvent derrière les choses simples que vous utilisez tous les jours ? De l'histoire du simple trombone à la science derrière votre stylo préféré, les objets du quotidien ont des histoires fascinantes à raconter. Saviez-vous que le design de la fermeture éclair moderne a révolutionné la mode ? Ou que le célèbre Post-it Note était en réalité un heureux accident ? Rejoignez-nous pour découvrir ces anecdotes intrigantes et plus encore, montrant comment même les objets les plus simples ont une histoire riche et surprenante.  Animation créée par Sympa. ---------------------------------------------------------------------------------------- Musique par Epidemic Sound https://www.epidemicsound.com   Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna​ ---------------------------------------------------------------------------------------- Nos réseaux sociaux : Facebook: https://www.facebook.com/sympasympacom/ Instagram: https://www.instagram.com/sympa.officiel/  Stock de fichiers (photos, vidéos et autres): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ----------------------------------------------------------------------------------------  Si tu en veux encore plus, fais un tour ici:  http://sympa-sympa.com

Transcript

00:00:00In the United States, the black stripes on yellow school buses are not a decorative element.

00:00:05They are actually metal rails placed along the sides and at the back of the bus to protect its rather thin walls.

00:00:12In the event of a collision, they absorb most of the shock.

00:00:16These friction rails are also positioned at strategic locations.

00:00:19The lowest is at the level of the bus floor.

00:00:22The one in the middle corresponds to the bottom of the seats,

00:00:25and the one at the top corresponds either to the top of the seats or to the bottom of the window.

00:00:29Your ceiling fan can rotate in both directions for a very particular reason.

00:00:34One is for summer, the other for winter.

00:00:37When it is hot, the ceiling fans must rotate in the opposite direction of the needles of a watch.

00:00:42Thus, they draw the hot air up and push the cold air down.

00:00:46In winter, the rotation in the direction of the needles of a watch moves the hot air down and raises the cold air.

00:00:52As soon as you notice that the blue of your toothbrush is starting to fade, it is a sign that it is time to replace it.

00:00:59You can adjust your stapler so that it only temporarily staples the documents together.

00:01:03To do this, you have to rotate the stapling area.

00:01:06Most staplers have two stapling options.

00:01:09One is standard, while the other folds the staples in the other direction, moving them away from the center.

00:01:15Later, when you no longer need them, you can easily remove them by hand.

00:01:19Many people use a knife to remove the stems from the strawberries, but this wastes a small edible part of the fruit.

00:01:26Instead of a knife, use an ordinary straw.

00:01:29Insert one end of the straw at the bottom of the strawberry and gently push it up.

00:01:34If everything goes as planned, the straw will remove the stem.

00:01:38The small hole below the staples allows you to evacuate the water from the lock in case of rain.

00:01:42It prevents the object from rusting and scratching.

00:01:44You can also use this hole to oil the lock hinges so that they do not get stuck.

00:01:49If a lock does not have this small hole, you must use it only inside.

00:01:53It is not recommended to place dirty plates, covered with mashed potatoes or any other residue of glucide, near the ends of the lower drawer of your dishwasher.

00:02:03Several studies have shown that these plates are better washed when you put them in the center of the rack.

00:02:08The strange marks on the bottom of a toothpaste tube have nothing to do with the ingredients.

00:02:13They are actually there for the factory robots.

00:02:15Not that they brush their teeth too, but these colored squares mark the line where the tube must be cut and folded.

00:02:22Most cotton disks have two different textures on each of their faces.

00:02:26One is firmer and more absorbent.

00:02:29It is supposed to be used with nail polish solvent.

00:02:32The other side is much thinner and softer and is used to remove makeup from the face and eyes.

00:02:38Do not take off the post-it from the bottom.

00:02:40This will create a fold in the paper and the note will not stick well afterwards.

00:02:44Grab it on the side and it will stay stuck longer.

00:02:48When driving at night, you can be blinded by the headlights of the car following you.

00:02:53If you have a manual rearview mirror, find the tab below and tilt it.

00:02:57The rearview mirror has a reflective material behind its glass.

00:03:01By tilting the tab, you will change the angle of this material, which will dim the lights.

00:03:06The process is even simpler if you have an electronic rearview mirror, since you just have to activate the night mode.

00:03:13The bath foam relieves stress, cleanses the skin and keeps the water warm.

00:03:18The foam is composed of tiny air bubbles that form an insulating layer on the surface of the water, preventing heat from escaping.

00:03:25Let's say you are reading a book.

00:03:27You then decide to take a break and you realize that you do not have a bookmark.

00:03:31Do you have to crown the page?

00:03:33A bookmark is not necessary. This is what the cover is for, if there is one.

00:03:37Apparently, providing you with information about the book and its author is not its only function.

00:03:42Your stomach growls and suddenly a peanut butter sandwich seems to be a great idea.

00:03:47You open a jar and you see that there is a lot of oil on top.

00:03:51Burk! It's time to train the muscles of your arms and stir vigorously.

00:03:55But if you store your peanut butter jar upside down, the oil will move to the bottom and the solid part will stay on top.

00:04:03The main function of the drawer under your oven is not to store all these pans and all these pans.

00:04:08You are supposed to use this space to keep your food warm while you prepare something else in the oven.

00:04:14If you have no place to put a toothpick after using it,

00:04:17break the flat end at the level of the first groove and put it on the table.

00:04:21Now you can place the used part of your toothpick on the broken part so that it does not touch the table.

00:04:27The correct way to break a piece of a Toblerone chocolate bar is to push the pointed side down.

00:04:33Or just bite into it, but don't do that in public.

00:04:38Most extensions are known to unhook at the slightest traction.

00:04:42We tighten them and they will stay hooked even if you pull on them without wanting to.

00:04:46The knot can be tightened again, but nothing will unhook.

00:04:50The small groove below the cups allows the fresh air to pass underneath.

00:04:54This prevents the cups from cracking when a hot drink is poured into them.

00:04:58And when you place the cups upside down in the dishwasher,

00:05:01the grooves prevent water from accumulating in this double bottom.

00:05:05Anti-adhesive pans have a special coating and that's what makes them so great.

00:05:10But if you use metal utensils when you cook in such a pan, you risk scratching the coating.

00:05:16And once you've done it, your pan is broken.

00:05:19The food will begin to stick to its surface and will end up burnt or cooked unevenly.

00:05:25If you have always peeled bananas starting with the stem, try to do it the other way around.

00:05:30Pinch the bottom of the banana and pull.

00:05:33This way you won't have to deal with the wires and other small pieces to remove.

00:05:36In fact, this is the approach used by monkeys.

00:05:39But you wouldn't want to contradict monkeys, would you?

00:05:42Most of the caps of the small tubes are hollow on top and have a small tip inside.

00:05:47Their function is to pierce the aluminum hopper that seals the tube.

00:05:51The tube glue fits perfectly into this hole and the tip is designed to pierce the hopper.

00:05:56No need to get angry by trying to remove the tiny aluminum seal with your fingers.

00:06:01The more detergent you use, the cleaner your laundry is, isn't it?

00:06:05Not exactly. If you add too much detergent, you can damage your clothes.

00:06:09It will produce too much foam and your clothes won't rub against each other.

00:06:13But that's exactly what makes them clean.

00:06:16Excess foam can also prevent your laundry from rinsing properly.

00:06:20The pages of books are often printed on large sheets of paper rather than on small individual sheets.

00:06:26If there isn't enough content to fill these sheets, they remain blank pages.

00:06:30Publishers often print the word note or leave other signs on these pages.

00:06:34So the reader doesn't think it's a printing error.

00:06:37The stripes on the side of the road are supposed to wake up sleepy drivers who are starting to suffocate.

00:06:44When your tires drift on these stripes, the noise and vibrations work like an alarm.

00:06:49It's crazy to think that making a mess with a tube of mascara will make more product come out of the tube.

00:06:55In reality, it will only damage your mascara.

00:06:58By moving the tube, you make air enter the tube.

00:07:01It not only produces lumps, but also dries the mascara.

00:07:05The 1 cm hole you can see in the elevator doors is actually a lock hole.

00:07:10If the doors are locked, an operator can manually open them by inserting a special key into this hole.

00:07:16The same tool is used when an elevator needs maintenance control.

00:07:21The bubbles in your soda push the straw up when they balance the buoyancy with the mass of the straw.

00:07:27But you can prevent your straw from going back into your soda can by making it go through the hole of the metal opening tab.

00:07:33Ah, all this science behind a simple can.

00:07:37These squares of fabric that go with new clothes are made so that you can test your cleaning products on them first.

00:07:43This way, you won't damage your article from the first wash.

00:07:47The round part of the soles under the cap of a soda bottle prevents the bubbles from escaping.

00:07:52Without it, your soda would become flat in no time.

00:07:55Probably even before you buy it.

00:07:58The retractable blade cutter is supposed to last much longer than most people think.

00:08:03The blade of the cutter is made up of narrow and parallel sections.

00:08:07When the tool is worn out, it breaks the worn section with the tip underneath.

00:08:11And there you go, you have a brand new cutting blade.

00:08:14But don't forget to put on a pair of gloves and safety glasses before you do.

00:08:21Today, I'm going to show you things you've never seen before and tell you things you didn't know.

00:08:26Wow, all of this in one video? What luck!

00:08:30For example, these drinking fountain stations in fast food.

00:08:33We all think they're great, but have you ever wondered where all this soda came from?

00:08:39Come, I'll take you behind the scenes.

00:08:41In fact, we come across a pile of boxes with tubes.

00:08:45So when the drink is exhausted, the employees change boxes and reconnect the tube.

00:08:50Well, let's take a look at some other places where we're not normally supposed to be.

00:08:55Here, for example, is what you'll see if you open the screen of a Mac.

00:09:00And here's what's hidden behind the dryers of a washing machine.

00:09:03Today, 4 out of 5 households in the United States have a laundry dryer.

00:09:07But they weren't as widely accessible when they appeared in the 1950s,

00:09:12because they were far too expensive for the average consumer.

00:09:16Grocery shopping is a common practice,

00:09:18and we've all spent a million times in front of refrigerators for dairy products.

00:09:22But have you ever wondered what was behind it?

00:09:25It turns out that it's just shelves,

00:09:27and that the store employees stack the products on the other side.

00:09:30It's quite logical, but I never imagined things like that.

00:09:34This photo shows what's behind the elevator buttons.

00:09:37Obviously, a hell of a lot of cables.

00:09:40The buttons are all connected to a computer that manages the elevator.

00:09:43How does the computer expand where the cabin is?

00:09:46There are several possible systems,

00:09:49but the most common is a long, vertical ribbon in the gait,

00:09:52with a series of holes.

00:09:55A sensor counts the right number of holes that have passed,

00:09:58and that's how the location is determined.

00:10:01Well, there are also two or three common things that we all know,

00:10:04but whose usefulness remains a great mystery to most people.

00:10:08So let me share these secrets with you.

00:10:11These metallic rivets on jeans have been around since the very beginning.

00:10:15Jacob Davies, the mythical man who made the first pair of jeans,

00:10:18added leather rivets to places where pants are more likely to tear.

00:10:23Today, they have a more decorative and distinctive purpose,

00:10:26since they are a traditional attribute of classic jeans.

00:10:30I bet you know that there are additional holes on some shoes.

00:10:34No, it's not for perspiration or ventilation.

00:10:37These are holes for laces, just like the other holes you use.

00:10:40But they are there to fix your shoe around the ankle

00:10:43to prevent your foot from moving inside.

00:10:45It's particularly useful if you're hiking,

00:10:47and you're going up and down hills and trails.

00:10:51Have you noticed these half-belts that many coats and jackets have on the back?

00:10:56It turns out that they appeared for the first time on military jackets,

00:10:59so that the additional fabric can be gathered in the back

00:11:02and that the person is not crowded while working.

00:11:06Today, these belts are only added because of style and tradition.

00:11:10Most of the clothes you buy are delivered with a small piece of fabric or a button,

00:11:14or both.

00:11:15These elements are not useless.

00:11:17The buttons, of course, can be used to replace what is lost.

00:11:22The pieces of fabric are useful for two things.

00:11:24You can make a hole, but the main goal is to provide you with a sample of the fabric

00:11:29so that you can use it to test different washing products on it

00:11:32and see what happens.

00:11:35Now, the pompoms on wool hats.

00:11:38Did you know that sailors wore hats with pompoms in the 18th century

00:11:42to protect their heads in case they hit them accidentally?

00:11:46The people of the street wore them in Scotland

00:11:48and the color of the pompom indicated the social status of the person.

00:11:51People started wearing pompoms again with these pretty decorative objects during the Great Depression.

00:11:56They are made from recycled thread.

00:11:58It was therefore a good way to decorate your coat.

00:12:01You may have noticed that some sidewalks have small plaques with bumps.

00:12:06Most people don't pay much attention to it,

00:12:09but they are very important for visually impaired people.

00:12:12They indicate a slope, which then leads to a pedestrian crossing.

00:12:16In addition, several motifs indicate various elements.

00:12:19Did you notice that the icon of a gas tank on the dashboard of cars has a small arrow next to it?

00:12:25Well, this arrow is useful.

00:12:27It indicates the side of the car where the gas tank is located.

00:12:31Very useful for distracted people who constantly wonder which side they are on.

00:12:35And also for those who drive rental cars from time to time.

00:12:39The answer is right in front of you.

00:12:42If you don't find the arrow on your dashboard,

00:12:44then the gas pipe on the icon indicates the side in place.

00:12:48At the back of many makeup and hygiene products,

00:12:51you can find this symbol with a marking like 6M, 12M and 24M.

00:12:57This is the number of months this product can be used before you have to throw it away.

00:13:02You may know that whistles work perfectly even if they don't have this little ball inside.

00:13:07And yet they do.

00:13:08But then why?

00:13:10Even if the whistle produces a sound without the ball,

00:13:12it is quite neutral and we don't notice it enough.

00:13:16When the whistle contains a ball,

00:13:18it starts to move at each blow.

00:13:21This creates different heights and makes the noise more noticeable.

00:13:26It's not for nothing either,

00:13:27that the lollipop sticks have these square holes at their ends.

00:13:31When the candy is placed on the stick,

00:13:33part of the stick enters the hole,

00:13:35thus fixing the candy part.

00:13:37In this way, the candy ball or any other shape

00:13:40has less chance of detaching from the stick.

00:13:42Because yes, it's terrible when it happens.

00:13:44The bands to be measured have this metal cap at the end.

00:13:47Most people know that you can use it

00:13:49to stick it on the side of the surface you are measuring.

00:13:52But that's not the only cool thing about it.

00:13:55Look, there is also a small slit.

00:13:57This slit can be used to hook it to a nail.

00:14:00Once again to free your hands and continue to measure.

00:14:03The bottom of the end of the ribbon has a striated edge.

00:14:06It will help you to make a mark if you don't have a marking tool with you.

00:14:10Have you ever wondered why the blade of the ribbon is curved?

00:14:13Well, it allows you to keep it tilted when deployed.

00:14:17Look at the blade more closely.

00:14:18In addition to the numbers and marks,

00:14:20there are also black lozenges.

00:14:23These are present every 48.8 cm.

00:14:26And they are useful to the workers of the building

00:14:28to space out the engineering beams.

00:14:30They can also be useful if you want to suspend something heavy, for example.

00:14:34The diamond will mark the exact center of a lozenge

00:14:37which is placed 40 cm from each other.

00:14:41And you can drill something in this center

00:14:43to make sure that what you hang is well fixed.

00:14:47Most coins have stripes.

00:14:49And this is the heritage of the old days.

00:14:52You see, at the time, all coins were linked to a silver standard.

00:14:55The amount of silver used in a piece

00:14:57was proportional to the value of the piece.

00:15:01So, the more money there was in the manufacture of the piece,

00:15:04the more it had value.

00:15:06Hi-ho, silver!

00:15:07Do you remember the lonely ranger?

00:15:09Money was the name of his horse.

00:15:11But forget it.

00:15:12Anyway, all coins contained precious metal

00:15:16and some people started to refuse a little money.

00:15:20This was not seen on a single piece.

00:15:22But if we did it on several,

00:15:24people could recover a good part of the precious metal.

00:15:27So, to avoid frauds,

00:15:28the edges were equipped with security crests.

00:15:31So, if someone tried to rob them,

00:15:33the stripes would disappear.

00:15:35And no one wanted to accept this piece anymore.

00:15:37Clever!

00:15:39Today, as no one makes coins in silver,

00:15:41the coins simply symbolize value.

00:15:43But the stripes are, in a way, a cultural heritage.

00:15:46And finally, a typical plastic bottle of milk

00:15:49often has inverted circles on one or more of its sides.

00:15:53These are not circles of extraterrestrial culture.

00:15:55This reinforcement is there to make the pot more resistant

00:15:58and prevent it from erupting in case the pot fell to the ground.

00:16:02The reinforcement gives a little more space to the liquid to expand.

00:16:06In addition, as the expiration date approaches,

00:16:08the microbes present in the milk begin to expel gases.

00:16:11As they are more likely to be trapped inside,

00:16:14the pressure in the pot increases.

00:16:16The reinforcement takes care of the expansion

00:16:18and prevents the pitcher from exploding.

00:16:20And the cows are obviously delighted

00:16:22that their hard work is not wasted.

00:16:25No!

00:16:27If you ever find yourself stuck in the trunk of your car one day,

00:16:31stay calm.

00:16:32All cars are supposed to be equipped with an emergency lock

00:16:35that allows you to open the trunk from the inside if necessary,

00:16:38which is very unlikely.

00:16:40These locks are so well designed that they can be opened by anyone,

00:16:43regardless of their age.

00:16:45In addition, the handles are designed to be bright in the dark.

00:16:49You can even pull them with your mouth

00:16:51if there is not enough room to use your hands.

00:16:53And this, no matter how you end up in this trunk.

00:16:56Change of subject.

00:16:58If you work with wire and a needle,

00:17:00do not forget that it is not necessary

00:17:02to insert the needle directly into the coil.

00:17:04You risk losing it,

00:17:06not to mention that you could easily prick yourself

00:17:08and hurt your finger.

00:17:10Nowadays, many sewing kits

00:17:12have a place reserved for needle storage.

00:17:15It is located at the bottom of the wire coil.

00:17:18Just take it out.

00:17:20It is even possible to store several needles at the same time.

00:17:23The disposable pens have a little secret.

00:17:26Have you ever noticed that on some of them

00:17:29there is a small hole in the plastic part?

00:17:31It is actually a basic ventilation system.

00:17:34It is supposed to allow the ink to reach the tip of the pen easily.

00:17:38OK, I know it's a super common reflex,

00:17:41but it is not really necessary to shake the dispensers of spices

00:17:44to get the product out.

00:17:46You don't believe me? You're not the only one.

00:17:49So go get your favorite salt or pepper bottle in your closet.

00:17:52If it has one of these removable plastic caps,

00:17:55it is perfect for this experiment.

00:17:57Instead of shaking the bottle,

00:17:59try to hold it by the plastic cap

00:18:01while it is upside down.

00:18:03Slowly rotate the bottle from one side to the other

00:18:06and you will see that the condiment will flow

00:18:09without you having to shake the bottle

00:18:11and mess up your kitchen.

00:18:13In the same order of ideas,

00:18:15most salt dispensers and pepper dispensers

00:18:17have strips at the bottom of the upside-down part.

00:18:19In case the seasoning gets stuck inside,

00:18:22place the bottom of the salt dispenser

00:18:24against the bottom of the pepper dispenser

00:18:26and make small circles so that the crepes

00:18:28stick to each other.

00:18:30The condiment should now flow easily

00:18:32without you having to open the bottle.

00:18:35When it is cold,

00:18:36it often happens that you wear so many layers of clothing

00:18:39that you no longer feel the straps of your handbag

00:18:41or your backpack on your shoulders.

00:18:43Not to mention the speed with which it slides.

00:18:46Some jackets have an integrated solution

00:18:48to remedy this problem,

00:18:50in the form of a small strap on the shoulder

00:18:52with a hook or a button.

00:18:54It is designed to open and close easily

00:18:57so that you can keep your handbag in place permanently.

00:19:00Most of the time,

00:19:02a peeler is only used to remove the skin of potatoes,

00:19:04carrots or cucumbers.

00:19:06But you can also use your vegetable peeler

00:19:08to cut thin slices of onion.

00:19:11Just cut the onion into four vertically

00:19:13and then start slicing it.

00:19:15This can also prevent you from crying with your onion.

00:19:20Most people don't pay attention to this,

00:19:22but if you ever look closely at your toothpaste tube,

00:19:25you will certainly see small colored lines,

00:19:28whether they are dots or squares.

00:19:30Colors can vary.

00:19:32They can be black, green, red or even blue.

00:19:35These colored dots are actually intended

00:19:37to help the toothpaste assembly machines.

00:19:40They allow you to know where and when

00:19:42these machines have to cut the toothpaste tubes

00:19:45and fold them to pack them.

00:19:47Look at your shoes.

00:19:49If there is an element that seems a little strange to you,

00:19:51know that it is always there for a good reason.

00:19:54Most manufacturers do not add

00:19:56additional elements to the shoes just for fun.

00:19:58It would be a waste of time and money,

00:20:00you can imagine.

00:20:02On winter shoes, for example,

00:20:04there is often a small loop at the top and back.

00:20:06It is there to help you put them on,

00:20:08because you can adjust it quickly by pulling on it.

00:20:11In addition, it also allows you to suspend the soles somewhere,

00:20:14probably to dry them,

00:20:16because most of these little boots

00:20:18are designed to be worn during the coldest and humidest months.

00:20:21I admit that it has already happened to me at least once

00:20:24to accumulate the layers of clothes to avoid having to put everything in my suitcase.

00:20:28But this becomes problematic when it comes to sitting.

00:20:31What do you do with your coat or jacket?

00:20:33The next time you take the plane,

00:20:35look closer at the seat in front of you.

00:20:38The hook that holds the tablet upright

00:20:40can be used as a hook for your jacket.

00:20:42As long as you don't need to have a meal during the flight,

00:20:45you can use it.

00:20:47Most mascaras last between 3 and 6 months,

00:20:50depending on the manufacturer.

00:20:52But you can speed up this process if you don't pay attention.

00:20:55By continuously pumping the mascara brush

00:20:58to try to distribute more products,

00:21:00you fill the tube with air.

00:21:02The mascara then dries much faster

00:21:04and it damages faster

00:21:06and no longer fulfills its mission as before.

00:21:08There is a simple way to check

00:21:10if your mascara is still good enough to be used.

00:21:13If you don't hear a little plop when you take out the brush,

00:21:16you may need to buy a new one.

00:21:19I know that we live in an era of devices connected by Bluetooth.

00:21:23But for a sound of better quality,

00:21:25it is always recommended to use headphones

00:21:27that connect via audio jacks.

00:21:29Do you remember noticing black stripes on these jacks?

00:21:32They are not there just to hold them

00:21:34when you plug them into your phone or laptop.

00:21:37Made in a special insulating material,

00:21:40these strips are intended to protect the wires

00:21:42during the transmission of sound.

00:21:44Depending on the number of strips,

00:21:46you can guess which end goes where.

00:21:48An empty space under a cup of noodles

00:21:51does not mean that the company that produced them

00:21:53wanted to scam you by depriving you of a complete portion.

00:21:56No, no.

00:21:57It's a way to protect the noodles during their transport.

00:22:00It also facilitates the circulation of hot water

00:22:03that is poured on the noodles before they are tasted.

00:22:07This V-neck collar was originally designed

00:22:09to meet several objectives.

00:22:11First of all, it is a way to extend the life of the garment

00:22:14that will keep its shape over the years.

00:22:17It also serves to pass the head through the sweater

00:22:20in case it needs to be pulled.

00:22:22In this way, it ensures a better grip around the neck.

00:22:26Finally, it helps to absorb sweat

00:22:28if you wear the jacket during a workout session.

00:22:31It is no longer a common practice,

00:22:33but you may one day come across a jacket

00:22:35with an additional mysterious pocket on the right side.

00:22:39It turns out that this pocket was once used by men

00:22:42to easily access their train tickets,

00:22:44because most of them went to work every day.

00:22:48It allowed them to keep their jacket buttoned

00:22:50while benefiting from a pocket.

00:22:52Today, it is no longer a useless decoration.

00:22:55Speaking of things that we no longer use today,

00:22:58or at least not in their initial purpose,

00:23:00did you know that Pledo was originally a cleaning product?

00:23:04In the 1920s,

00:23:06industrialists needed a product

00:23:08that would help them clean the upholstered area

00:23:10around the coal ovens.

00:23:12The recipe for what we know today as Pledo

00:23:15was thus invented.

00:23:17It was made only in white

00:23:19and was supposed to clean the wallpaper

00:23:21by being rolled back and forth on the dirt.

00:23:23It was only later, in the 1940s,

00:23:26that new products intended to clean the wallpaper

00:23:29were born,

00:23:30and that Pledo was redirected to another sector of the market.

00:23:34Although I still enjoy eating a good piece of toasted bread

00:23:37for breakfast,

00:23:38isn't it boring to have to clean the breadcrumbs?

00:23:41Well, not anymore,

00:23:42because I recently discovered that breadcrumbs

00:23:44are equipped with a slide or a panel at the bottom

00:23:47that allows you to easily get rid

00:23:49of all these annoying crumbs.

00:23:51It was a time when video games

00:23:53could only be used by inserting cartridges

00:23:55into the console of your choice.

00:23:57However, these small objects gave a lot of headaches

00:23:59to many doctors.

00:24:01People, especially the youngest,

00:24:03began to end up in the hospital

00:24:05after swallowing small game cartridges.

00:24:07Nintendo, the company that manufactures

00:24:09the majority of these devices,

00:24:11had to find a creative solution

00:24:13to avoid these accidents.

00:24:15This is why, nowadays,

00:24:17Nintendo Switch cartridges

00:24:19are slowly replaced by special chemical products

00:24:21that leave a really unpleasant bitter taste

00:24:23in the mouth.

00:24:25Clearly, I do not recommend you

00:24:27to try and taste for yourself.

00:24:29Have you ever wondered

00:24:31what these additional holes

00:24:33at the top of your sports shoes are for?

00:24:35They are designed so that you can attach

00:24:37the shoes in several different ways.

00:24:39It is useful when you want to compensate

00:24:41for things like a bad stroke,

00:24:43or even a damaged toe.

00:24:45In addition, you can modify the look

00:24:47as you wish.

00:24:49Many people use

00:24:51the cover of their books

00:24:53as a page marker.

00:24:55This is not a problem.

00:24:57Thanks to it, you will not have to frame your pages.

00:24:59But the first goal of a cover

00:25:01is to protect the book

00:25:03from external damage.

00:25:05For example, if you spill fruit juice

00:25:07or drop food on your book

00:25:09while you read it.

00:25:11The tic-tac box has this little groove

00:25:13on the top

00:25:15where you can put the tic-tac box

00:25:17at the same time.

00:25:19Even if, let's be honest,

00:25:21no one does that.

00:25:23Most of us spill a lot of it at once.

00:25:25Then we put all these tic-tac boxes

00:25:27in excess.

00:25:29These little rubber tips

00:25:31that you see between the tire tread

00:25:33are there for your safety.

00:25:35They tell you what is the minimum height

00:25:37of your tread.

00:25:39If the tips and edges are equal,

00:25:41it is time for you to go

00:25:43What about this black grid

00:25:45on the microwave window?

00:25:47This is what we call a Faraday cage.

00:25:49It is there to prevent

00:25:51microwaves from escaping

00:25:53and to turn the whole room

00:25:55into an oven.

00:25:57If microwaves escape,

00:25:59your meal will not be able

00:26:01to cook properly either.

00:26:03Indeed, this cage is not there

00:26:05to prevent you from seeing your meal

00:26:07while it is cooking,

00:26:09but so that the electromagnetic energy

00:26:11from the microwave can escape.

00:26:13And why not a screwdriver

00:26:15compatible with a wrench?

00:26:17Grab your screwdriver

00:26:19with the end of your wrench

00:26:21to increase its torsion force.

00:26:23This is why the head of your screwdriver

00:26:25is designed as it is.

00:26:27When you have weird angles,

00:26:29you can use this strategy.

00:26:31You've probably heard this myth.

00:26:33The blue side of the rubber

00:26:35can erase the pencil.

00:26:37It's wrong.

00:26:39The blue side can also remove

00:26:41these traces that may remain

00:26:43after using the pink rubber.

00:26:45Have you ever wondered

00:26:47why oranges in supermarkets

00:26:49are most often in red mesh bags?

00:26:51It's a tip for the fruits

00:26:53to have a brighter color,

00:26:55which encourages you to buy them.

00:26:57A bonus tip,

00:26:59do not throw away this mesh bag.

00:27:01Tie it to have enough to cook your pans

00:27:03and clean your sink,

00:27:05your kitchen appliances,

00:27:07etc.

00:27:37You may have noticed that there were sometimes small cracks on the top of the toothpicks.

00:27:43It's more hygienic because when you break it, you can press the toothpick on it and it won't touch anything else.

00:27:51Another security device that you will find in your car this time is a strap on your rearview mirror.

00:27:57With it, you can change the position of the mirror so as not to be blinded if there is a car behind you driving in the headlights.

00:28:05This little strap helps you to control the blinding of the lights coming from the rear.

00:28:09This function appeared in the 1930s, but it was only at the beginning of the 1970s that it became a standard equipment for most cars and other trucks.

00:28:19Do you see this little hole on your iPhone?

00:28:21Right next to the rear-facing camera?

00:28:23It's a microphone.

00:28:25And it's there so that your phone can record the sound when you rotate your camera.

00:28:30Some cables have a thick cylinder at the end of the cord.

00:28:34It's called a ferrite core.

00:28:37It's a magnetic iron oxide that stops electromagnetic interferences at high frequencies.

00:28:43You see, for example, this annoying static noise you get if you bring your phone too close to a speaker.

00:28:49It interferes with your call.

00:28:51That's why cable cords with large cylinders are rather useful because they prevent this kind of thing.

00:28:57Do you know why almost all luggage bags and backpacks have two zippers?

00:29:02It's much more practical and easier to open it that way.

00:29:05But that's not all.

00:29:07You can also lock these two sliding zippers together so that the things inside your bags are safe.

00:29:13You know how public places' toilets, like shopping malls, have these large spaces at the bottom of the door?

00:29:19It's mainly for better air circulation.

00:29:23This type of door also allows you to clean the toilets more easily or check if they are occupied when you wait.

00:29:29Apart from that, if you are stuck inside and the lock is broken, you still have a way to escape.

00:29:35You can just crawl out.

00:29:38Have you ever noticed these plastic tips on the cutters?

00:29:42The blade is also curved, which indicates that you can renew it several times, always with sharp edges.

00:29:50You can separate these pieces of blade thanks to these plastic tips.

00:29:53Then you just have to move the sliding part to push this new blade forward.

00:29:58If you have already taken a moment to examine a lambda supermarket cart, especially its foldable section,

00:30:04you have probably noticed these metal loops that protrude.

00:30:08They are designed to protect the items you carry in your cart.

00:30:12You can use them to hang bags containing soft items,

00:30:16such as bread, which you do not want to accidentally crush, with heavier products,

00:30:20or things more easily breakable, such as eggs.

00:30:24Many coffee cups are equipped with curved notches on their bottom.

00:30:27When you wash your cups, place them against the drawer of your dishwasher.

00:30:31This way, water will not accumulate inside and your favorite cup will be completely dry when you take it out of here.

00:30:39If you are a fan of McFlurry, you have probably already noticed that there was a square hole in the handle of their spoon.

00:30:45It is there so that you can attach it to this special machine, which mixes the ice cream with your favorite toppings.

00:30:52The machine has a bar that slides into this square-shaped spoon and gently stirs it.

00:30:58And you are given this spoon to minimize damage during the process.

00:31:02Pretty cool, isn't it?

00:31:05An ordinary can of milk usually has a boss on the side.

00:31:09Some may see a choice of random design, but this boss fulfills several objectives.

00:31:14One of them is to inflate if there is an accumulation of gas.

00:31:17This happens when your milk has turned.

00:31:20Thus, you do not even need to taste it to check.

00:31:23In addition, the boss is there so that the bottle does not explode if you drop it accidentally.

00:31:27It allows a space of expansion, which takes in the sudden pressure that occurs when you drop the bottle.

00:31:34Toothpaste.

00:31:36It is obviously important to take care of your teeth, and it is easy to guess how to use it.

00:31:41But it is also great in the kitchen.

00:31:44Because it is a very precise cake cutter.

00:31:47Much more effective than an ordinary knife.

00:31:52Most kitchen scissors have a keyhole opening right here in the center, where the blades and handles meet.

00:31:58This is something you can use to trim difficult herbs like thyme or rosemary.

00:32:03Thanks to this opening, you do not need to remove the leaves by hand.

00:32:07But you can tear them all in one move.

00:32:11A large part of yoghurt or flan skins are provided with an aluminum foil lid.

00:32:16And in most cases, you can use this lid as a disposable spoon.

00:32:21Just take it off, and after a few simple folds, you will have a small spoon perfect for your 4 hours.

00:32:30You are trying on a jean, a dress or a jacket, and you are about to put your hand in your pocket,

00:32:35when suddenly, you realize that it is impossible.

00:32:38There is no pocket at all.

00:32:41But why sew pockets in which you can not put anything?

00:32:44You can now pick up your iPhone on the floor.

00:32:49Well, the reason is very simple.

00:32:51Adding pockets on some clothes could damage the cut that was initially given to them.

00:32:56They can deform them in the warehouse or on the detailer's showcase.

00:33:02The solution? Get rid of the pockets in the key places.

00:33:06In addition, fake pockets cost much less, and they do not distance themselves.

00:33:11This curious practice dates back to the 17th century.

00:33:14At that time, pockets were removable.

00:33:17They were like small bags, and women, for example, could pass them from one outfit to another.

00:33:22Unfortunately, it was also very practical for pickpockets.

00:33:26Nothing easier than taking hold of his pockets.

00:33:30Then the clothes have evolved.

00:33:32And we started to sew thin pockets instead of these detachable bags.

00:33:37We thought it embellished the silhouette.

00:33:41But soon, narrower skirts appeared.

00:33:44And the pockets went to the trap.

00:33:47People started using handbags instead.

00:33:50Today, most pockets are real.

00:33:52But the fakes have not completely disappeared.

00:33:55So how do we make sure that our clothes have a pocket,

00:33:57and that we will not find a simple hole by putting our hand in it?

00:34:01First, take a look at the seam along the edge of the pocket,

00:34:05where it is supposed to open.

00:34:07If you see a single loose thread, cut a piece and start pulling gently.

00:34:12If the pocket is real, the thread will come out easily.

00:34:16But if the seam does not move, it is very likely that it is a fake pocket.

00:34:22In this case, drop it.

00:34:26Now let's see what other everyday objects have a little secret.

00:34:30For example, these lines on certain varieties of crisps.

00:34:34They help to distribute spices and seasonings.

00:34:38Basically, all these substances that give taste to your crisps are retained between these lines.

00:34:44And then, they make them more crispy.

00:34:48The overlays are filled with a semi-transparent fluorescent ink,

00:34:52which shines under low light.

00:34:55Yellow and light green are the most popular,

00:34:57because they allow you to see the text when you make a black and white photocopy.

00:35:02The photocopiers do not detect these colors, and the page remains clear.

00:35:08In the past, there was a problem with jeans.

00:35:12Workers and miners, who were the first to wear them,

00:35:15often mistreated them during their work.

00:35:18And the seams did not resist and tore.

00:35:22Tiny metal rivets were therefore added to reinforce this popular garment.

00:35:28Most metal zippers lock automatically.

00:35:31That's why you should not leave the zipper pointed up.

00:35:34When you bring it down, it locks, in a way.

00:35:37This is thanks to small grooves hidden under the zipper.

00:35:43Now let's talk about these horizontal lines on plastic bottles.

00:35:47It is thanks to them that the bottles stand up.

00:35:49Some bottles are made of flexible plastic.

00:35:52Without these lines, they would deform.

00:35:54They would be all wrinkled and could even break.

00:35:57The bath foam is not only used to have fun or to perfume the water.

00:36:00It is also used to regulate the temperature.

00:36:02The bubbles retain the heat and you can enjoy your bath longer.

00:36:06With or without plastic ducks.

00:36:10Have you noticed this layer of transparent liquid in the gel-inked pens?

00:36:14This is what is called the follow-up liquid or the stop liquid.

00:36:17The gel of these pens contains dissolved pigment particles in a polymer solution.

00:36:22The gel must be thick enough to hold the particles in suspension.

00:36:26But also fluid enough to flow first on the ball, then on the paper.

00:36:31The stop liquid prevents the gel from evaporating or flowing.

00:36:37Without this transparent fluid, your gel-inked pen would not write.

00:36:41The fluid is fixed and does not dissolve with the gel.

00:36:45It does not move backwards and does not flow out of the pen.

00:36:50The holes at the bottom of your headphones allow the air to circulate and pass through the speakers.

00:36:55This increases the low frequencies, which improves the quality of the low sounds.

00:36:59And the sound quality in general is improved.

00:37:03Some plastic milk containers have holes on the side.

00:37:07It is that they do not stop hitting each other.

00:37:11These holes have several functions.

00:37:14First of all, when the milk stops, it usually causes a swelling and an increase in pressure inside the container.

00:37:22This is when the hole is useful.

00:37:25It inflates and prevents the container from bursting.

00:37:27In addition, if you decide to freeze your milk, it will spread like any other liquid.

00:37:32And this hole will swell and your bottle of milk will remain intact in your freezer.

00:37:37A good thing!

00:37:40Airplanes' wings have rounded edges and this is very important for safety.

00:37:45This avoids accidents.

00:37:47The weak points are generally located in the corners.

00:37:50If the plane's wings were square or rectangular, they would therefore have four weak points.

00:37:55With the pressure, it could be catastrophic.

00:37:59If you look closely at the air cables of the railways, you will see that they zigzag instead of running in a straight line.

00:38:06All railways have pantographs on their roofs.

00:38:11The upper part of the pantograph gradually sweats at the contact of the cable.

00:38:16In the end, it must be replaced.

00:38:19For it to sweat uniformly, the cables do not follow a straight line, but in a zigzag.

00:38:24The railway advances and its pantograph sweats more slowly.

00:38:29You may have already wondered why some gas cans have two holes with caps, a large one and a smaller one.

00:38:36Before, I thought that the small hole was used to pour the liquid into a small container.

00:38:40But I was wrong.

00:38:42And it's very rare.

00:38:44In reality, you have to uncap it before pouring your gas through the large hole.

00:38:49You will avoid it from sticking and spreading on the ground by accident.

00:38:53Most of the buttons of a shirt are vertical.

00:38:57But those at the top, and sometimes at the bottom, are horizontal.

00:39:01The reason is simple.

00:39:03These two buttons slide more often than the others.

00:39:06Fortunately, the manufacturers have found a solution to prevent these buttons from sliding.

00:39:10Horizontal buttons.

00:39:12What ingenuity!

00:39:14The buttons are less often found in this type of buttons.

00:39:17The sugar or salt sachets are easier to open than you think.

00:39:20It is not necessary to tear one of the ends.

00:39:23The right method is to tear them in the middle.

00:39:27Some boots have loops at the top of the heel.

00:39:30They are used to put your shoes on more easily.

00:39:33You just have to pull on the loop while you push your heel into the boot.

00:39:37You can also use these loops to hang your shoes when they are dirty or when you want to dry them after washing.

00:39:44You can also pass your laces through the loop if you want to hang your shoes.

00:39:48When you are in a plane, you may notice a small triangle above your seat.

00:39:53These triangles indicate to the on-board staff the best places to check the flights of the plane through the canopy.

00:39:58You are never too safe.

00:40:00If your shoes are really too slippery, you just need to take some sandpaper and rub it on your soles.

00:40:06They will hang better and you can wear them when it rains.

00:40:10But be careful not to sand them too much.

00:40:13Your feet could get dirty.

00:40:15If you drill a few holes in the bottom of your bin, it will be easier for you to place and take out your bags.

00:40:20The air will circulate better and you won't hold them anymore.

00:40:24You will usually find silica gel in your bags, shoes and many other things you buy.

00:40:30This gel absorbs excess humidity.

00:40:32Don't throw away your bags.

00:40:34Every time your shoes are wet, put a few of them inside.

00:40:38If your shoes are wet, put a few of them inside.

00:40:41Every time your shoes are wet, put a few of them inside.

00:40:46Thermoses were not invented to keep your coffee hot.

00:40:50They were designed by a Scottish scientist who wanted to keep his chemical products at a stable temperature.

00:40:56So he took two bottles, put the smallest inside the largest and removed the air between the two.

00:41:02But it's still convenient for picnics.

00:41:06If you see it in the street, you think that a fire mouth is about one meter high.

00:41:11But the real size of this device, used to supply water to firefighters around the world, is twice as large.

00:41:17If we count the rest of the fire mouth that is hidden underground.

00:41:21Most of the time, they are red.

00:41:23And it's not just a matter of urban design.

00:41:25First of all, they must be bright and easily identifiable, so that firefighters can locate them quickly if necessary.

00:41:31In the USA, the choice of color depends on the amount of water that the fire mouth can contain.

00:41:35It can sometimes vary depending on the place, but here is the logic.

00:41:38A red fire mouth can project 1,890 liters of water per minute.

00:41:43While an orange one, at least 3,780 liters.

00:41:47Green ones can pour 5,680 liters of water per minute.

00:41:51And the biggest, blue ones, can generally provide more than 5,680 liters.

00:41:57Hi, bowling fans!

00:41:59It doesn't bother you that your bowling ball is cracking?

00:42:01It turns out that most of them can be damaged due to poor storage or temperature peaks.

00:42:05Now, let's be honest.

00:42:07Since it is already a little broken, you are not curious to know what is inside your bowling ball?

00:42:11Because I am.

00:42:13Let's take a look.

00:42:15The inner core of the ball is mainly composed of metallic powder oxides, such as calcium oxide or iron.

00:42:20They are mixed with resin and a catalyst to harden the whole thing.

00:42:24Thus, the shape of the bulb that you now see inside the ball is in fact its heaviest part.

00:42:29It also influences the way the bowling ball turns when it crosses the track.

00:42:32The same goes for paint bombs.

00:42:34When you shake it, it makes a strange noise.

00:42:37But what is this thing inside?

00:42:39It is a small weight, which is supposed to keep the paint mixture in place and keep its shape.

00:42:44It is generally made of plastic, metal or ceramic.

00:42:47It is mainly used as a whip to ensure that the paint is well mixed before applying it to the surface of your choice.

00:42:54Have you ever wondered how the bottles of soda kept this sparkling and refreshing for so long?

00:42:58Well, they have a small plastic seal attached to the lid.

00:43:01It is installed here to prevent the gas from escaping and the drink from becoming flat.

00:43:06Even if you shake it in your bag all day long.

00:43:10Speaking of things that are used when it is very hot.

00:43:13Wait, wait, don't put on your cap yet.

00:43:16Look at it for a moment and you will notice that there is a small button at the top.

00:43:20It is used for something or it is just there to look pretty.

00:43:23Some claim that at the time when people wore hats,

00:43:25this button was used for something.

00:43:28As it is above the cap, where all the pieces of fabric meet,

00:43:31the upper button helps to keep the crown of the cap in one piece.

00:43:35Today, thanks to recent projects in the field of fabric design and patterns,

00:43:39this button has rather become an aesthetic element.

00:43:42It is used to cover the part where all the pieces of fabric meet.

00:43:45Your cap may not have a button, but don't you think it is cooler with it?

00:43:50Cotton discs are also used to cover the cap.

00:43:53Cotton discs have two sides.

00:43:56And if you take the time to look at them carefully, you will see that they have different textures.

00:44:00In case you are wondering why, the side with the texture is used to put on the makeup

00:44:04and the flat side is used to remove it.

00:44:08Book lovers, this is for you.

00:44:11The jackets that come with many books with rigid covers are not only intended to embellish the book.

00:44:15They can also serve as bookmarks.

00:44:17Just fold the pages you have already read under the inside of the jacket.

00:44:20And that's it.

00:44:22The next time you take your favorite shirt, take a look at the buttonhole at the top.

00:44:27It must be sewn horizontally, while all the others are vertical.

00:44:31It turns out that the city shirt was designed this way

00:44:34since the first and last button are the first to unbutton during the day.

00:44:38They therefore modified the direction of the buttonhole

00:44:41so that the shirt stays well adjusted before you are ready to remove it.

00:44:46Nowadays, we have so many different versions of this incredible dessert

00:44:50that you can imagine that we could have lived without it.

00:44:53You can find almost everywhere different types of chocolate chip cookies,

00:44:56in ice cream or even in cakes.

00:44:58But this famous cookie only came to life in 1930.

00:45:01The story goes that a woman named Ruth Grave Wakefield

00:45:05was preparing chocolate cookies while waiting for her guests to arrive.

00:45:08Very quickly, she realized that she no longer had pastry chocolate,

00:45:12an essential ingredient to prepare classic biscuits.

00:45:15To remedy this situation, she bought a half-sweet chocolate bar

00:45:17by thinking that it would end up evenly distributed in the dough

00:45:21given the heat of the oven.

00:45:23Things did not necessarily go as she had planned.

00:45:25But that's good, because that's how she invented this modern dessert

00:45:28that we can no longer do without.

00:45:32And speaking of popular snacks,

00:45:34chips are even younger than chocolate chip cookies.

00:45:37At least from a historical point of view.

00:45:39There are many stories that try to explain how they were invented.

00:45:43One of them is the following.

00:45:44A chef named George Crum, based in New York,

00:45:47created the chips in 1953.

00:45:50He wanted to try a new cooking method

00:45:53when one of his customers was full of his fries.

00:45:56He said they were too thick and a little soft.

00:46:00Crum then imagined finely chopped potatoes and fries

00:46:03until they were brown.

00:46:05People loved this dish

00:46:07and welcomed this very first batch of chips to Bresouvert.

00:46:12Ice cream, anyone?

00:46:14In fact, in 1904, at the Saint Louis Universal Exhibition,

00:46:18an ice cream vendor ran out of cups to serve his specialty.

00:46:21So he made a cone-shaped waffle

00:46:24and the rest now belongs to history.

00:46:27Okay, I admit it,

00:46:29similar products to chewing gum have existed since Ancient Greece.

00:46:32So this discovery is not particularly revolutionary.

00:46:35But the chewing gum we buy today

00:46:37appeared at the end of the 1800s.

00:46:39An American inventor named Thomas Adams

00:46:41wanted to mix different chemical products

00:46:44to create synthetic rubber.

00:46:46He tried and failed to exploit the properties of gum

00:46:49for his experiment,

00:46:51but he ended up creating this delicious snack.

00:46:53Today, we still use gum

00:46:55to produce a certain number of chewing gums.

00:46:57In the 1800s, a man named Jean-Baptiste Joly

00:47:00worked in the textile industry

00:47:02as a fabric manufacturer.

00:47:04The discovery of the following invention,

00:47:06which we use a lot nowadays,

00:47:08has a little to do with him

00:47:10The story goes that the woman accidentally

00:47:13threw a kerosene lamp on a tablecloth.

00:47:15Instead of getting angry when seeing the damaged fabric,

00:47:18Joly noticed that the substance

00:47:20had actually cleaned the fabric.

00:47:22You already understood.

00:47:24Yes, this is how the very first pressing was born.

00:47:27A very clean accident,

00:47:29if I may say so.

00:47:32Now, I love this one.

00:47:34Did you know that matches were originally called

00:47:36friction lights?

00:47:37In any case, this is the name their inventor,

00:47:39a chemist named John Walker,

00:47:41gave them in 1826.

00:47:43One day, he scratched a chemical product

00:47:45coated stick on his chimney by pure chance,

00:47:48and realized that it was igniting

00:47:50and creating sparks.

00:47:52Originally made of cardboard,

00:47:54they were then made from

00:47:56wooden rods and glass paper.

00:47:59In the 1940s,

00:48:01a man named Harry Coover

00:48:03came across a chemical formula

00:48:05that seemed to adhere to everything it touched.

00:48:07However, the scientist of the time

00:48:09did not think much about the question,

00:48:11because the formula did not seem to have

00:48:13many applications at the time.

00:48:15It was only in 1951 that he thought

00:48:17a little more about the formula

00:48:19and decided to reuse it,

00:48:21with another researcher,

00:48:23Distman Kodak, named Fred Joyner.

00:48:25They used a complete name,

00:48:27adhesive composition based on

00:48:29cyanacrylate, methyl,

00:48:31but you must know it under the shorter version,

00:48:33superglue.

00:48:35It has so much use in terms of security

00:48:37that in 1903,

00:48:39a scientist named Edouard Bénédictus

00:48:41dropped a bottle by accident.

00:48:43Looking down,

00:48:45he was amazed to see that the bottle

00:48:47had slightly melted,

00:48:49but had retained its shape.

00:48:51He expected it to break into a thousand pieces.

00:48:53Intrigued by this unknown peculiarity until then,

00:48:55he pondered the question

00:48:57and discovered that what kept the glass in place

00:48:59was a substance, nitrate of cellulose,

00:49:01which covered the inside of the glass.

00:49:03This is how humanity discovered

00:49:05the glass of security.

00:49:07Crackers are holes

00:49:09to prevent them from cracking

00:49:11and breaking during cooking.

00:49:13Without these holes,

00:49:15steam would accumulate in the dough

00:49:17until it burst.

00:49:19If you look at the capsule of a soda bottle,

00:49:21you will notice that there is a plastic disc inside.

00:49:23It is used to seal the liquid and gases

00:49:25so that the drink remains sparkling.

00:49:27The long neck of the bottle is designed

00:49:29to encourage you to hold it there.

00:49:31In this way,

00:49:33the heat of your hand will only heat

00:49:35this part of the bottle

00:49:37and not the other.

00:49:39It is difficult to see the dishes

00:49:41when they are in the microwave oven

00:49:43because of this black satin gray on the glass.

00:49:45But if it is there,

00:49:47it is to prevent the harmful waves

00:49:49from escaping.

00:49:51Acting like a shield of Faraday,

00:49:53it serves to protect you

00:49:55while ensuring adequate cooking of the food.

00:49:57Some products,

00:49:59such as chips packets,

00:50:01contain up to 43% nitrogen.

00:50:03One might think that we are sold

00:50:05to a half-filled bag of air

00:50:07so that the contact with the chips

00:50:09would induce a reaction

00:50:11that would quickly make them rust.

00:50:13This phenomenon, called oxidation,

00:50:15bears its name.

00:50:17Nitrogen, on the other hand,

00:50:19is an inert gas that keeps food

00:50:21and prevents it from getting damaged

00:50:23during transport.

00:50:25Chips packed in an air cushion

00:50:27remain crispy

00:50:29and do not risk turning into crumbs.

00:50:31Donuts are hollowed

00:50:33so that the outside and the inside

00:50:35cook uniformly.

00:50:37This is why they are so crispy.

00:50:39Marks on paper sheets

00:50:41are not used to write

00:50:43the dates or the numbering lists.

00:50:45They were originally added

00:50:47to fulfill a protection function.

00:50:49At the time,

00:50:51rats were a real problem in houses

00:50:53and paper was one of their main favorites.

00:50:55Marks were used

00:50:57as a security device.

00:50:59Rats would rather nibble on the white paper

00:51:01which encoded the part

00:51:03intended for writing.

00:51:05This hole in the stem of your saucer

00:51:07is used to prevent ingestion.

00:51:09It is used to hold the donut in place.

00:51:11The water-filled confectionery

00:51:13enters the hollow of the stem

00:51:15and, once solidified,

00:51:17holds the saucer in place.

00:51:19In this process,

00:51:21it would be more fragile

00:51:23and would come off easily.

00:51:25Vacuum cleaners have a lot of accessories

00:51:27but do we really know

00:51:29what this long brush is for?

00:51:31It is useful for dust removal

00:51:33and its shape is perfectly adapted

00:51:35for cleaning frames, curtains

00:51:37and a plastic belt.

00:51:39Not only does a cedar belt

00:51:41allow you to adjust the shape of clothes

00:51:43but it also repels mites

00:51:45and other insects.

00:51:47Salt is not only useful in the kitchen.

00:51:49It can get rid of strong odors.

00:51:51Rubbing salt on your fingers

00:51:53after chopping garlic

00:51:55should get rid of the smell

00:51:57and it also works for shoes.

00:51:59The breadcrumbs have a secret drawer

00:52:01in the bottom

00:52:03that can be removed

00:52:04with a small piece of bread.

00:52:06If you can't get chocolate out of the box,

00:52:08look at these little holes next to it.

00:52:10They are there to help you.

00:52:12If you press one of these holes,

00:52:14the chocolate will come out easily.

00:52:16When you drink a sip of coffee

00:52:18in a cup with a lid,

00:52:20the pressure in the cup decreases

00:52:22and the air tries to enter.

00:52:24The little hole on the lid

00:52:26allows the air to circulate

00:52:28and the drink can flow smoothly

00:52:30through the main opening.

00:52:32And it's not over.

00:52:34They are used to inform

00:52:36the staff and customers

00:52:38about the contents of the cups

00:52:40in order to differentiate them.

00:52:42There is a legend

00:52:44about each little refill.

00:52:46You just have to look at which one is filled

00:52:48to know what it corresponds to.

00:52:50The numbers on the fruit labels

00:52:52give us information

00:52:54about how they were grown.

00:52:56If there are four numbers,

00:52:58the first one is a 4 or a 3,

00:53:00the fruit was treated with pesticides.

00:53:02If there are five numbers,

00:53:04the first one is an 8,

00:53:06it has undergone genetic modifications.

00:53:08When you are on your way to your car

00:53:10after you have finished

00:53:12and packed all your shopping,

00:53:14remember to use the hooks

00:53:16on the cart to hang the bags.

00:53:18This way, the most fragile items

00:53:20like bread, eggs,

00:53:22or fruits and vegetables

00:53:24will not be crushed

00:53:26by the heavier products.

00:53:28If you have no one with you

00:53:30to help you hold your tape measure

00:53:32when you try to measure something,

00:53:34you just have to unroll it.

00:53:36The McFlurry square spoon

00:53:38is designed to easily mix

00:53:40the fillings with the ice.

00:53:42It hooks directly to a machine

00:53:44and starts spinning.

00:53:46The external hooks

00:53:48suck quickly because of the rain.

00:53:50You see this little hole down there?

00:53:52It is used to pour engine oil.

00:53:54This trick allows you

00:53:56to lubricate the mechanism

00:53:58and the key should spin again

00:54:00effortlessly.

00:54:02You've been hitting the bottom

00:54:04but nothing comes out?

00:54:06Here's a little trick.

00:54:08Put the bottle diagonally

00:54:10and tap it towards the middle of the neck.

00:54:12In many fast foods,

00:54:14customers have small paper cups

00:54:16folded to serve ketchup or mustard.

00:54:18Ready for the scoop?

00:54:20These little ramekins

00:54:22are actually supposed to unfold

00:54:24to become real little paper plates

00:54:26that can hold a lot more sauce.

00:54:28The little hole on the handle

00:54:30of the pans or pans

00:54:32is not only used to hang them

00:54:34but also as a utensil

00:54:36that you can use in this hollow.

00:54:38It will be held above the preparation

00:54:40that is being cooked

00:54:42and will prevent splinters.

00:54:44The colored hairs of a toothbrush

00:54:46are there to tell us

00:54:48when it is necessary to change them.

00:54:50If you notice that these hairs

00:54:52are considerably pale,

00:54:54change your toothbrush

00:54:56or just your head depending on the case.

00:54:58The upper hole of the sink

00:55:00has many functions.

00:55:02First, it prevents water from overflowing

00:55:04by allowing the air to escape

00:55:06while the water is flowing.

00:55:08Most of the metal shutters

00:55:10have a hidden locking system

00:55:12that can save you from awkward moments

00:55:14like an open bracket.

00:55:16Don't let the strap go up.

00:55:18If you lower the strap,

00:55:20the closure locks automatically.

00:55:22All thanks to these little notches

00:55:24placed under the tongue.

00:55:26Fermented milk produces gases

00:55:28like most fermented foods.

00:55:30Some plastic milk cans

00:55:32have a concave part on one side.

00:55:34This part of the bottle will inflate

00:55:36and the concave shape becomes convex.

00:55:38The same thing will happen

00:55:40if you put the can in the freezer.

00:55:42The solidified milk takes up more space

00:55:44than the liquid form.

00:55:46The foam bath is not only made

00:55:48to have fun and feel good.

00:55:50It also regulates the temperature.

00:55:52The bubbles keep the water warm

00:55:54and you can enjoy your bath longer.

00:55:56However, it only works

00:55:58for acrylic baths,

00:56:00those made of metal

00:56:02that quickly lose heat in all cases.

00:56:04These mugs have small grooves

00:56:06on the bottom.

00:56:08This is designed for dishwashers.

00:56:10They allow water to flow

00:56:12and thus avoid getting everywhere

00:56:14when you get out of the dishwasher.

00:56:16These grooves help to circulate the air

00:56:18so that the cup does not crack

00:56:20even if the tea is boiling.

00:56:22The small tips in the cream tube caps

00:56:24are also useful.

00:56:26Most of the tubes

00:56:28are sealed with aluminum.

00:56:30It is impossible to pierce

00:56:32without saying goodbye to your nails.

00:56:34The escalator brushes

00:56:36are not used to clean and polish

00:56:38your shoes by the way.

00:56:40Applying wax on a moving escalator

00:56:42can be complex.

00:56:44These brushes are there

00:56:46for safety reasons

00:56:48by preventing users

00:56:50from approaching the edge of the steps.

00:56:52They reduce the risk

00:56:54that the bottom of a long coat

00:56:56or ripped pants

00:56:58get stuck between the steps.

00:57:00All tic-tac boxes are designed

00:57:02to make only one tic-tac come out at a time.

00:57:04If you open it,

00:57:06you will see that there is only one tic-tac in the lid.

00:57:08If you shake the box

00:57:10until it is full

00:57:12you do not know how to eat tic-tac.

00:57:14Originally, the pompom on the caps

00:57:16was not just a fashion accessory.

00:57:18It prevented sailors

00:57:20from hitting their heads

00:57:22on the ceiling,

00:57:24typically very low, of ships.

00:57:26The cylinder at the end of a cable

00:57:28is placed there

00:57:30and seems totally useless.

00:57:32In fact, it is a ferrite pearl

00:57:34to reduce electromagnetic interference.

00:57:36The electric wires

00:57:38act as involuntary antennas

00:57:40and diffuse the emitted energy.

00:57:42There is a reason

00:57:44why the tray inside the microwave

00:57:46is circular.

00:57:48A circular object

00:57:50evenly distributes heat

00:57:52unlike rectangular or square objects.

00:57:54When you place containers

00:57:56with these shapes inside,

00:57:58the energy is concentrated on the corners

00:58:00instead of being evenly distributed

00:58:02like in a round container.

00:58:04The temperature gauge

00:58:06of a bread grill

00:58:08is generally used

00:58:10to determine the degree of cooking of the tarts.

00:58:12But the other, more specific use

00:58:14of the gauge

00:58:16is that of different types of bread.

00:58:18White and sweet breads

00:58:20heat up much faster

00:58:22than brown and rye breads,

00:58:24which are heavier.

00:58:26The older the bread,

00:58:28the more time it will need

00:58:30in the bread grill

00:58:32to get the golden result

00:58:34you probably think

00:58:36that the goal is to cool the oven

00:58:38after use.

00:58:40In fact,

00:58:42its goal is to focus

00:58:44on the cooking of the top of the dish

00:58:46and ensure a crispy layer.

00:58:48By controlling the accumulation of heat

00:58:50and steam

00:58:52by releasing it through the slightly open door,

00:58:54you get the desired result

00:58:56without cooking the whole dish

00:58:58until it is crispy.

00:59:00You have probably noticed

00:59:02that your dishwasher

00:59:04must be oriented towards the center

00:59:06and not all in the same direction.

00:59:08The types of food on the plates

00:59:10will also determine

00:59:12their location in the drawers.

00:59:14As the center of the machine

00:59:16receives the strongest gel,

00:59:18the glucid-based stains

00:59:20from tomatoes and potatoes

00:59:22must be placed in this place.

00:59:24The detergent is more concentrated

00:59:26on the outside during cleaning,

00:59:28which creates a cascade-shaped cleaning.

00:59:30This is why protein-based stains

00:59:32such as those of eggs, for example,

00:59:34must be placed in this place.

00:59:36The ceiling fans

00:59:38push the fresh air down

00:59:40when it is hot,

00:59:42making the room circulate.

00:59:44But they can serve you

00:59:46just as effectively in winter

00:59:48if you engage the switch on the side

00:59:50or if you use the pull.

00:59:52So if you want to save money

00:59:54on heating

00:59:56and try to heat your room quickly

00:59:58on a cold day,

01:00:00put the fan in motion.

01:00:02It will push the air up

01:00:04and you will always have post-it notes

01:00:06instead of these new sophisticated applications

01:00:08on all imaginable devices.

01:00:10Welcome to the club!

01:00:12Whatever you use,

01:00:14they always end up falling.

01:00:16If you have already encountered this problem,

01:00:18it is because you took them off

01:00:20from the bottom to the top.

01:00:22It is this way of doing things

01:00:24that causes the roll-over.

01:00:26By taking them off on the side,

01:00:28you make sure they stay flat

01:00:30and ready to remind you of your daily tasks.

01:00:32Did you know that the open boxes

01:00:34have become commonplace?

01:00:36So how was it possible

01:00:38to open a can box before?

01:00:40There are a few alternative methods

01:00:42in case you have missed

01:00:44your faithful open box.

01:00:46All you need is a metal spoon.

01:00:48Place the box on the work surface,

01:00:50hold it firmly

01:00:52and hold the spoon head well.

01:00:54Press and rub vigorously

01:00:56the edge of the lid of the box

01:00:58on a small surface.

01:01:00This takes time,

01:01:02but by rubbing,

01:01:04you get the idea.

01:01:06Once the hole is wide enough

01:01:08to pass the tip of the spoon,

01:01:10put the lever on the lid

01:01:12and keep rubbing the edges

01:01:14until you can finally

01:01:16access the meal it contains.

01:01:18You have won!

01:01:20Most toilets depend on

01:01:22the pressure of the water

01:01:24and the gravity to function.

01:01:26A power failure will not affect them.

01:01:28But if yours need electricity

01:01:30to function,

01:01:32you should worry about their use

01:01:34and not about pulling the flush.

01:01:36As the mechanism of the flush

01:01:38always works,

01:01:40open the toilet tank,

01:01:42pour a few liters

01:01:44and you can flush

01:01:46everything you need.

01:01:48The plugs in the shower pipes

01:01:50occur over a long period.

01:01:52It is inevitable.

01:01:54We lose 50 to 100 hairs a day

01:01:56and many of them

01:01:58try to fit in our shower pipes.

01:02:00The hair is the main source

01:02:02of obstruction,

01:02:04a good thing

01:02:06is to use your vacuum cleaner

01:02:08and put the tip in the hole

01:02:10after removing the grid.

01:02:12Use a damp cloth

01:02:14around the tip

01:02:16making sure that the air

01:02:18cannot escape.

01:02:20The vacuum cleaner

01:02:22will be able to vacuum

01:02:24things that obstruct

01:02:26much more easily.

01:02:28You will thus avoid the

01:02:30plumber's costs

01:02:32who use this technique themselves.

01:02:34The vacuum cleaner

01:02:36is firm and stable

01:02:38and it continues to burn

01:02:40more slowly

01:02:42for a longer period.

01:02:44The empty space between

01:02:46the windows of the oven door

01:02:48is there for a good reason.

01:02:50You can slide a brush

01:02:52to clean the window

01:02:54of the oven door.

01:02:56It is easy to access

01:02:58this space from the bottom

01:03:00of the door.

01:03:02Open the lower part

01:03:04of the door

01:03:06to get a good distance

01:03:08before the bumper

01:03:10makes a notch on the wall.

01:03:12Stretching a rope

01:03:14with a tennis ball

01:03:16from the ceiling

01:03:18at a good distance

01:03:20will help you learn

01:03:22the best distance to respect

01:03:24to park compared to the wall.

01:03:26We have all been told

01:03:28to unlock a lock

01:03:30with WD-40 or lubricant.

01:03:32Yes, we all know

01:03:34how to insert it into the lock.

01:03:36Keep doing it

01:03:38until the lock hole

01:03:40is well lubricated

01:03:42and the key works.

01:03:44The pliers are likely

01:03:46to damage the taps

01:03:48and shower heads

01:03:50when you use them

01:03:52to repair them

01:03:54and they are also

01:03:56difficult to grab.

01:03:58Take two pieces

01:04:00of the end of an old

01:04:02watering pipe

01:04:04or a used rubber

01:04:06for different things

01:04:08in the house.

01:04:10When you have enough

01:04:12to tighten or loosen

01:04:14a screw with a screwdriver,

01:04:16try using a simple rubber

01:04:18by placing a piece

01:04:20in the handle of the screwdriver

01:04:22and it will have

01:04:24a much better grip.

01:04:26Moving cement blocks

01:04:28is not harmless

01:04:30to the lower back.

01:04:32Even with a wheelbarrow,

01:04:34you can easily

01:04:36break a block.

01:04:38Try lifting the edge

01:04:40of the first pipe

01:04:42with a lever

01:04:44then push and move it

01:04:46by gradually moving

01:04:48the three pipes

01:04:50to the desired place.

01:04:52Just make sure

01:04:54you don't do it

01:04:56in a slope.

01:04:58The first time you

01:05:00plant a nail

01:05:02can be a great success

01:05:04when you work

01:05:06with a circular saw

01:05:08to make sure

01:05:10the marks are not erased.

01:05:12They will also be

01:05:14easier to see

01:05:16under the water.

01:05:18Checking the pipes

01:05:20on the roof

01:05:22and determining

01:05:24when they need

01:05:26to be cleaned

01:05:28can take a long time.

01:05:30Using tape,

01:05:32attach a mirror

01:05:34to the pipes

01:05:36to ensure

01:05:38extra security.

01:05:40Liquid cement products

01:05:42usually come in

01:05:44huge tubes

01:05:46so you can never

01:05:48use them all at once.

01:05:50The hard tips

01:05:52create nozzles.

01:05:54Take a used lime nozzle

01:05:56and drill it

01:05:58to make a lid

01:06:00that covers the liquid cement.

01:06:02It is now ready

01:06:04to be used.

01:06:06You can use it

01:06:08in many ways

01:06:10but do you know

01:06:12that brass door handles

01:06:14are really useful

01:06:16in addition to being elegant

01:06:18and shiny?

01:06:20As it is a copper alloy,

01:06:22brass has antimicrobial properties.

01:06:24This means

01:06:26it can help

01:06:28eliminate germs

01:06:30and harmful bacteria

01:06:32sometimes in less than 2 hours.

01:06:34Speaking of beautiful polyvalent objects,

01:06:36most screwdrivers

01:06:38have a little secret.

01:06:40They can sometimes

01:06:42slide into a key

01:06:44to create more torque

01:06:46when torqued

01:06:48and are useful

01:06:50in hard-to-reach places.

01:06:52The buttons on women's shirts

01:06:54are for the left-handed

01:06:56and have nothing to do with fashion.

01:06:58This practice dates back

01:07:00to the time

01:07:02when women helped

01:07:04to put buttons on men's shirts.

01:07:06The fact that buttons are placed

01:07:08in this way

01:07:10is a sign of wealth.

01:07:12It is easy to imagine

01:07:14why this practice has persisted

01:07:16even though most people

01:07:18dress themselves nowadays.

01:07:20The next time you receive

01:07:22a package in your mail,

01:07:24take a look at the cutter.

01:07:26If it has diagonal lines

01:07:28on the blade,

01:07:30you will benefit

01:07:32from a small design advantage.

01:07:34With the cutter,

01:07:36the upper segment of the next line

01:07:38can break

01:07:40to get a new super-cutting edge.

01:07:42To do this,

01:07:44look at the small hole

01:07:46at the base of the tool,

01:07:48sometimes called the blade breaker.

01:07:50The people who came up

01:07:52with this brilliant invention

01:07:54are engineers

01:07:56who were inspired

01:07:58by the way chocolate bars

01:08:00are divided.

01:08:02Wait a minute!

01:08:04Chocolate bars

01:08:06absorb moisture

01:08:08from their environment

01:08:10so that you can keep

01:08:12these bags for other occasions.

01:08:14If you need to dry your phone

01:08:16or another electrical object,

01:08:18you can put it in a container

01:08:20next to silicon gel

01:08:22to reduce damage.

01:08:24No need to be a mechanic

01:08:26to know when the tires

01:08:28of a standard car

01:08:30must be replaced

01:08:32because they are equipped

01:08:34with a special coating.

01:08:36This is the sign

01:08:38that you must contact

01:08:40your local car service

01:08:42because it is very likely

01:08:44that the tires have lost

01:08:46most of their traction

01:08:48and that they are no longer

01:08:50safe for driving.

01:08:52The upper corners of a car's windshield

01:08:54have textured black dots

01:08:56integrated at the edge of the glass.

01:08:58This detail is not there

01:09:00for design reasons.

01:09:02It is a coated coating,

01:09:04designed to hide

01:09:06and create a rough surface

01:09:08for the glue used

01:09:10to put the windshield in place.

01:09:12Every time you hit the road,

01:09:14check if there is a small bar

01:09:16under the rearview mirror of your car.

01:09:18I bet you didn't know

01:09:20it was there to help

01:09:22the rearview mirror

01:09:24switch from day vision

01:09:26to night vision.

01:09:28It uses a prismatic glass technology

01:09:30to blur the reflection

01:09:32and reduce the glow

01:09:34of the rearview mirror.

01:09:36It became the norm

01:09:38in the 1970s.

01:09:40When you are in the car,

01:09:42take a look at the headrests

01:09:44because you probably don't know

01:09:46that they have a hidden function.

01:09:48Of course, they can be adjusted

01:09:50to suit all sizes of passengers

01:09:52so that they benefit

01:09:54from adequate support

01:09:56for their head and neck.

01:09:58The hidden feature

01:10:00is that they are detachable

01:10:02and have two very solid metal bars.

01:10:04So, you are driving around

01:10:06and you suddenly run out of gas.

01:10:08What I am about to describe

01:10:10is more like a joke

01:10:12than a real situation

01:10:14likely to occur.

01:10:16But what happens

01:10:18if you are in such a hurry

01:10:20that you accidentally leave

01:10:22with the gasoline gun

01:10:24still in the tank?

01:10:26Well, the guns were designed

01:10:28to avoid any risk,

01:10:30rest assured.

01:10:32They have a separation device

01:10:34that is designed

01:10:36to be worn exclusively

01:10:38by basketball players.

01:10:40Baskets have quickly become

01:10:42one of the most fashionable items

01:10:44just like jeans

01:10:46and leather jackets.

01:10:48If you take a closer look,

01:10:50you will see that they have

01:10:52two additional holes

01:10:54on the side

01:10:56that look like shoe laces.

01:10:58They are designed

01:11:00not only to provide

01:11:02additional ventilation

01:11:04but also to keep

01:11:06the air inside.

01:11:08So, you always thought

01:11:10that the baskets

01:11:12are attached to an end

01:11:14in order to keep them together

01:11:16until you are ready

01:11:18to start your meal.

01:11:20This may not be quite true.

01:11:22If you take a closer look,

01:11:24you will see that these wooden tools

01:11:26have a square-shaped end.

01:11:28The baskets made in this way

01:11:30come from an old Japanese

01:11:32traditional design

01:11:34that can be reused

01:11:36since they will not touch the table

01:11:38or any other surface.

01:11:40Women's bikes have a special design

01:11:42that surprisingly has a historical

01:11:44and fashionable function.

01:11:46The lower frame is largely

01:11:48intended to compensate

01:11:50for the generally smaller size

01:11:52of women compared to

01:11:54that of a normal man.

01:11:56If this is the case for the handlebars

01:11:58and the saddle,

01:12:00the general frame is lower

01:12:02for an additional reason.

01:12:04This is why we designed

01:12:06a bike with a lower frame

01:12:08that is perfect for women

01:12:10and their needs of the time.

01:12:12The fact that the toothpaste

01:12:14is multicolored is not only

01:12:16a nice advantage to make

01:12:18dental hygiene more fun.

01:12:20There is a secret explanation

01:12:22related to each of the colors

01:12:24dating back to the 1970s.

01:12:26At that time, people were

01:12:28increasingly interested

01:12:30in their oral dental health

01:12:32and were therefore looking for

01:12:34an alternative.

01:12:36The company was the first

01:12:38to add a mouthwash

01:12:40to its toothpaste,

01:12:42that is, the blue strip.

01:12:44It then added the red strip

01:12:46intended to contain ingredients

01:12:48that help you take care

01:12:50of your gums.

01:12:52Speaking of toothpaste,

01:12:54check the cap the next time

01:12:56you open a new tube

01:12:58and you may have a little surprise.

01:13:00There is a kind of pointed cone

01:13:02inside the cap

01:13:04that can transfer germs

01:13:06or other bacteria

01:13:08into the product itself.

01:13:10As for the articles

01:13:12to be placed on the counter

01:13:14of the bathroom,

01:13:16toothbrushes are equipped

01:13:18with a very practical accessory

01:13:20hidden in the hairs.

01:13:22In addition to giving the toothbrush

01:13:24a cooler look,

01:13:26they also have a practical purpose.

01:13:28Most toothbrushes

01:13:30are equipped with a pattern

01:13:32of blue hairs

01:13:34that must be replaced

01:13:36every three to four months,

01:13:38but this gives a good reminder

01:13:40in case you forget.

01:13:42Do you still like to play

01:13:44with Legos?

01:13:46I don't judge you,

01:13:48it's an excellent hobby

01:13:50for all ages.

01:13:52Note that there is a hole

01:13:54on the top of the Legos' heads.

01:13:56This is a safety device

01:13:58designed by Legos

01:14:00to avoid the risk

01:14:02of suffocation.

01:14:04It seems to circulate freely

01:14:06through the piece

01:14:08until it can be removed

01:14:10safely.

01:14:12We are now used to

01:14:14all kinds of modern bulbs,

01:14:16some in tubular form,

01:14:18others in diamond form

01:14:20and others still completely twisted.

01:14:22Historically,

01:14:24bulbs were round

01:14:26and this initial shape

01:14:28was useful in itself.

01:14:30It was mainly linked

01:14:32to the fact that glass bulbs

01:14:34had to be at the same distance

01:14:36from each surface

01:14:38of the glass sphere.

01:14:40The easiest way

01:14:42to achieve this

01:14:44was to make the glass

01:14:46in the shape of a globe.

01:14:48Have you ever

01:14:50vibrated in your room

01:14:52listening to some

01:14:54of your favourite songs

01:14:56and admiring

01:14:58the bass of your speaker

01:15:00while it was

01:15:01almost always black?

01:15:03Some of you

01:15:05are probably screaming

01:15:07right now

01:15:09to say that their speakers

01:15:11are green, red

01:15:13or any other colour of the rainbow.

01:15:15First of all,

01:15:17we said almost always

01:15:19and then,

01:15:21if you look closely

01:15:23at the beautiful design

01:15:25of your music player

01:15:27in bright colours,

01:15:29you will see that

01:15:31when it is amplified,

01:15:33it sends a charge

01:15:35through the diaphragm

01:15:37and these black particles

01:15:39are pushed up.

01:15:41The carbon particles

01:15:43that bounce

01:15:45and touch the upper membrane

01:15:47of the diaphragm

01:15:49are responsible

01:15:51for the creation

01:15:53of some of the distinct sounds

01:15:55of our speakers

01:15:57that we love so much.

01:15:59Speakers manufacturers

01:16:01often use black speakers.

01:16:03Another practical reason

01:16:05for which speakers

01:16:07are most often black

01:16:09is that it is a colour

01:16:11that fits easily

01:16:13with many types of decor.

01:16:15Walls, furniture and clothes

01:16:17are often raised

01:16:19when they are combined

01:16:21with this colour.

01:16:23This is why it is so widespread.

01:16:25According to several studies,

01:16:27listening to music

01:16:29has been ranked

01:16:31among the best

01:16:33in the world.

01:16:35On your TV,

01:16:37your laptop

01:16:39and your phone,

01:16:41you can't escape them.

01:16:43But let's see

01:16:45how it all started.

01:16:47Their origins

01:16:49lie in radio

01:16:51and telephone technology.

01:16:53The first type of speaker

01:16:55was developed

01:16:57by Johann Philipp Reisz

01:16:59in 1861.

01:17:01Alexander Graham Bell,

01:17:03the inventor of the telephone,

01:17:05decided to try

01:17:07to produce an improved version

01:17:09of Reisz's speaker.

01:17:11Basically, Bell and other inventors

01:17:13were trying to make

01:17:15an electrodynamic speaker.

01:17:17In 1877,

01:17:19it still did not exist

01:17:21but thanks to the desire

01:17:23of inventors from all over the world

01:17:25to change this,

01:17:27research has confirmed

01:17:29that it was quite possible

01:17:31to create a speaker

01:17:33to reach this conclusion.

01:17:35Next question.

01:17:37Why are there magnets

01:17:39in loudspeakers?

01:17:41Nowadays, all loudspeakers

01:17:43are powered by an electric current,

01:17:45which the inventors

01:17:47we mentioned

01:17:49would never have considered

01:17:51as acquired.

01:17:53When this electric current

01:17:55changes, it produces

01:17:57a magnetic field.

01:17:59To move the speaker panel,

01:18:01the stronger the magnet,

01:18:03the stronger the speaker.

01:18:05Another American inventor

01:18:07named Thomas Edison

01:18:09had filed a patent

01:18:11in the United Kingdom

01:18:13for a system using compressed air

01:18:15in an amplification mechanism.

01:18:17The first commercial electric loudspeaker

01:18:19was born in 1924.

01:18:21The sound quality produced

01:18:23by this loudspeaker

01:18:25was good enough for cinema.

01:18:27It took nearly 20 years

01:18:29to witness the next breakthrough

01:18:31in loudspeakers.

01:18:33This happened

01:18:35with the arrival of the Duplex Driver

01:18:37in 1943.

01:18:39It offered greater clarity

01:18:41and better coherence

01:18:43in high volumes,

01:18:45which was important

01:18:47in cinemas.

01:18:49This is why it was nicknamed

01:18:51the voice of cinema.

01:18:53The Duplex Driver

01:18:55was immediately tested

01:18:57by the Academy of Arts

01:18:59and Sciences of Cinema

01:19:01and the film industry

01:19:03seemed to make a lot of effort

01:19:05for its acoustics,

01:19:07just like the rooms

01:19:09in which we see the films.

01:19:11You may have noticed

01:19:13that these rooms

01:19:15are often thick curtains

01:19:17on the walls.

01:19:19These are soundproof

01:19:21or acoustic curtains

01:19:23and they are much thicker

01:19:25than standard curtains

01:19:27which are made of

01:19:29heavier and tighter fabrics

01:19:31which creates

01:19:33a much better sound experience.

01:19:35It is for the same reason

01:19:37that the curtains are so thick

01:19:39in cinemas.

01:19:41They help to trap sound

01:19:43by providing isolation

01:19:45from a practical point of view.

01:19:47This curtain is also there

01:19:49to prevent footsteps

01:19:51during the projection of films.

01:19:53This concept of sound trap

01:19:55is also the reason

01:19:57why putting a phone in a cup

01:19:59will make the sound appear louder.

01:20:01In all directions,

01:20:03when the speaker vibrates

01:20:05to create sound waves,

01:20:07an equal amount of energy

01:20:09goes from the front and the back.

01:20:11By placing a speaker

01:20:13in a form of speaker,

01:20:15we can redirect some of the energy

01:20:17coming from the back of the speaker

01:20:19and project it forward.

01:20:21By placing the speaker in a cup,

01:20:23you redirect the sound more effectively.

01:20:25It only travels in one direction

01:20:27which makes it sound louder

01:20:29than what you would hear

01:20:31in a cup.

01:20:33Why does your phone

01:20:35generate a noise

01:20:37in your speaker?

01:20:39This can happen

01:20:41when the two gadgets

01:20:43are close to each other

01:20:45and your phone

01:20:47is trying to send

01:20:49and receive data.

01:20:51The transfer of information

01:20:53produces electromagnetic disturbances

01:20:55in the environment of the speakers.

01:20:57This creates noise

01:20:59in the audio

01:21:01and vice versa.

01:21:03This eliminates

01:21:05what we call electromagnetic

01:21:07interference.

01:21:09Research conducted in the United States

01:21:11showed that on average

01:21:1374% of people

01:21:15had at least two pairs of headphones

01:21:17or two audio headphones.

01:21:1946% of them mentioned

01:21:21that they used their headphones

01:21:23or headphones

01:21:25more than two hours a day.

01:21:27Some choose their headphones

01:21:29or headphones

01:21:31because finding the right gadget

01:21:33is important because many people

01:21:35are ready to spend

01:21:37more than a hundred euros on it.

01:21:39Headphones and other headphones

01:21:41have become real fashion accessories.

01:21:43This is why well-known personalities

01:21:45try to have an impact

01:21:47on this industry

01:21:49as if it were the fashion one.

01:21:51Music maniacs Dr. Dre and Jimmy Yovine

01:21:53got the idea of the now world-famous

01:21:55brand Beats by Dre.

01:21:57They were walking along the Pacific Ocean

01:21:59one day in 2006

01:22:01because they had received an offer

01:22:03from a major brand in this field.

01:22:05After a few discussions,

01:22:07they decided that they wanted to do

01:22:09something they were more passionate about

01:22:11and decided to sell their headphones.

01:22:13The idea of the duo

01:22:15turned into a brand bought by Apple

01:22:17in 2014 for $3 billion.

01:22:19It was the biggest transaction

01:22:21in the history of Apple

01:22:23and Beats by Dre controlled

01:22:2570% of the headphone market

01:22:27at the time of the signing.

01:22:29This operation allowed Apple

01:22:31to use their famous wireless headphones,

01:22:33the Airpods,

01:22:35to comfort the company in this position.

01:22:37But how do these wireless headphones

01:22:39that many of us own

01:22:41actually work?

01:22:43They actually depend on internal batteries

01:22:45to have enough power

01:22:47to stay wireless.

01:22:49Most of the time,

01:22:51they have built-in rechargeable batteries

01:22:53but sometimes they still work

01:22:55thanks to AA or AAA batteries.

01:22:57They receive wireless signals

01:22:58through a device called an audio device.

01:23:00Whether it's your phone

01:23:02or your laptop,

01:23:04these signals are coded by the device

01:23:06and are transmitted most often

01:23:08by radio frequencies

01:23:10or infrared supports.

01:23:12The headphones receive the signal

01:23:14and decode it into audio

01:23:16and you can enjoy your music

01:23:18in all freedom.

01:23:20The construction site workers

01:23:22are usually dressed in orange

01:23:24because this color is visible

01:23:26even in bad weather.

01:23:28This is to warn people.

01:23:30It's no surprise that many

01:23:32security vests and warning cones

01:23:34are also orange.

01:23:36The stop sign has an eight-sided shape

01:23:38to help drivers recognize it easily

01:23:40even if they see it from behind.

01:23:42And when the signs were not yet reflective,

01:23:44the octagonal shape prevented drivers

01:23:46from confusing the stop sign

01:23:48with any other at night.

01:23:50The rugged strips on the sides of the road

01:23:52are placed there to warn drivers

01:23:54who get stuck behind the wheel.

01:23:56When the tires pass over these strips,

01:23:58there are magnetic locks

01:24:00on the fuel pumps

01:24:02in the service stations

01:24:04in case someone leaves

01:24:06with the gasoline gun

01:24:08still attached to his tank.

01:24:10In this case, the lock automatically

01:24:12detaches the hose.

01:24:14The gasoline forms a rainbow

01:24:16in a puddle of water

01:24:18because it cannot mix with water.

01:24:20It forms a thin membrane above.

01:24:22When the light reflects on it

01:24:24and on the water at the same time,

01:24:26you get a rainbow.

01:24:28You can easily fill it

01:24:30and distribute the liquid evenly.

01:24:32Gasoline cans often have a second hole

01:24:34that must also be opened

01:24:36before pouring the liquid.

01:24:38Air passage will prevent it from overflowing

01:24:40and therefore from wasting it.

01:24:42Most gasoline cans

01:24:44have two holes with caps,

01:24:46one larger and one smaller.

01:24:48You are supposed to open the smallest hole

01:24:50before pouring the liquid

01:24:52by the largest one.

01:24:54This will prevent the liquid from sticking

01:24:56and spreading on your clothes

01:24:58or on the tip of a lipstick cap.

01:25:00Most tubes are usually sealed

01:25:02with a plastic film

01:25:04or an aluminum foil

01:25:06and opening it with your nails

01:25:08is not the best idea.

01:25:10The tip on the cap

01:25:12allows you to easily open

01:25:14even the most tightly sealed tube.

01:25:16You can use most screwdrivers

01:25:18with a wrench

01:25:20to create more torque.

01:25:22Just place the wrench

01:25:24on the screwdriver handle.

01:25:26This way, you will need

01:25:28a screwdriver to open the cap.

01:25:30The cameras are installed

01:25:32in shops, banks and hospitals

01:25:34to monitor everything.

01:25:36If something happens,

01:25:38you can call the police or the ambulance.

01:25:40The camera helps to resolve a lot of cases.

01:25:42So why are there no cameras

01:25:44in planes?

01:25:46The crew keeps order in the plane

01:25:48but they can't do anything

01:25:50if something serious happens.

01:25:52In addition, there is nowhere

01:25:54to hide in a plane.

01:25:56During the flight,

01:25:58if the cameras are useless,

01:26:00why spend money on them?

01:26:02Water is very easy to clean

01:26:04because it has triangular molecules

01:26:06composed of an oxygen atom

01:26:08and two hydrogen atoms

01:26:10hence the H2O.

01:26:12These molecules have slightly different charges

01:26:14on their opposite sides

01:26:16a bit like magnets.

01:26:18This is why water easily attaches

01:26:20to other molecules

01:26:22including those that make up saline.

01:26:24Many individual houses

01:26:26have triangular roofs

01:26:28to protect them from the wind.

01:26:30If all these things pile up

01:26:32on the roof of your house,

01:26:34one day they could collapse.

01:26:36When a storm approaches,

01:26:38the clouds seem to become dark.

01:26:40But this is only an illusion.

01:26:42The thin clouds of a sunny day

01:26:44easily let the light pass.

01:26:46They also diffuse all the colors

01:26:48of the light spectrum.

01:26:50This makes us perceive the clouds

01:26:52as being white.

01:26:54The thicker the clouds are

01:26:56and contain droplets of water,

01:26:58such as in bronze

01:27:00or in some copper alloys.

01:27:02These metals have an anti-germ effect.

01:27:04The bacteria spread

01:27:06much more slowly on them.

01:27:08They also get rid of the microbes

01:27:10quite quickly, in a few hours.

01:27:12But this does not mean

01:27:14that you should not wash your hands.

01:27:16Diamonds have symmetrical shapes

01:27:18to show you their brilliance.

01:27:20At first, these precious stones

01:27:22are not so beautiful.

01:27:24They go through several stages of size

01:27:26and then become elegant pieces.

01:27:28They are slightly pointed.

01:27:30It is in this shape

01:27:32that diamonds shine the most.

01:27:34Why are there two holes

01:27:36in an electric socket?

01:27:38The left hole is negatively charged,

01:27:40the right hole is positively charged,

01:27:42and the space below is the ground.

01:27:44Electricity must flow through the circuit.

01:27:46The current passes through the positive hole,

01:27:48through the charger of your phone,

01:27:50for example,

01:27:52then passes through the negative hole.

01:27:54Have you ever wondered

01:27:56what your jeans pocket was for?

01:27:58You have seen the effect.

01:28:00Today, no one wears

01:28:02this kind of watch anymore,

01:28:04but the pocket has remained.

01:28:06And you can slip small objects

01:28:08like a ring in it.

01:28:10In London, there are poles

01:28:12that look a bit like air lamps,

01:28:14but they do not have bulbs.

01:28:16Their official name is

01:28:18Smoking Pipe,

01:28:20and they belong to history today.

01:28:22But they were very useful

01:28:24in the 19th century.

01:28:26These hollow poles

01:28:28can be used

01:28:30as a kitchen chisel.

01:28:32Most kitchen chisels

01:28:34have metallic teeth

01:28:36resembling clamps

01:28:38in the middle between the handles.

01:28:40They can help you break nuts,

01:28:42crab shells,

01:28:44and other hard products.

01:28:46You can also use them

01:28:48to open jars and bottles

01:28:50or remove the stems of herbs.

01:28:52Leather often looks dull to the eye

01:28:54because it is covered

01:28:56with tiny scratches and scratches.

01:28:58The scratches are more uniform.

01:29:00This is why leather

01:29:02has a brighter shade.

01:29:04The liners are filled

01:29:06with a special semi-transparent

01:29:08fluorescent ink

01:29:10that can shine in low light.

01:29:12Yellow and light green shades

01:29:14are the most popular

01:29:16because they do not prevent

01:29:18you from seeing the text

01:29:20after a black and white photocopy.

01:29:22Photocopiers perceive

01:29:24yellow and light green marks

01:29:26as very pale

01:29:28and not as bright.

01:29:30The blue part

01:29:32indicates the south pole

01:29:34and the red part

01:29:36the north pole.

01:29:38The two poles work simultaneously

01:29:40and increase the attraction.

01:29:42The 1 cm diameter hole

01:29:44in the doors of an elevator

01:29:46is a lock.

01:29:48If the doors are locked,

01:29:50an operator can manually

01:29:52open them by inserting

01:29:54a special key into the hole.

01:29:56As for the tiny holes

01:29:58they are extremely solid.

01:30:00They can withstand

01:30:02the difference in air pressure

01:30:04during take-off and landing.

01:30:06The inner window,

01:30:08which is the closest to you,

01:30:10is made of less expensive material.

01:30:12It avoids any potential damage

01:30:14to the window.

01:30:16The hole itself

01:30:18is in the central window.

01:30:20It not only balances the pressure

01:30:22but also prevents

01:30:24the window from jamming.

01:30:26The mechanical stairs brushes

01:30:28the yellow or orange sun

01:30:30because the atmosphere

01:30:32of our planet

01:30:34scatters colors like blue,

01:30:36green and purple.

01:30:38This is also why the sun

01:30:40looks warmer at sunrise

01:30:42and sunset.

01:30:44If you go to a store

01:30:46to buy oranges,

01:30:48you will surely find them

01:30:50in a red net.

01:30:52It is pure marketing

01:30:54and this color is not

01:30:56a random choice.

01:30:58It is impossible to buy them.

01:31:00Lemons are usually sold

01:31:02in green net nets

01:31:04for the same reason.

01:31:06If they were wrapped in red,

01:31:08they would look more orange.

01:31:10Green goes better with yellow

01:31:12and makes the color of lemons

01:31:14stand out more.

01:31:16Mattress manufacturers

01:31:18produce a limited number

01:31:20of different mattresses

01:31:22and the only way

01:31:24to make them different

01:31:26is to invent

01:31:28different patterns

01:31:30with different qualities.

01:31:32So when you buy,

01:31:34don't worry about the pattern.

01:31:36Almost all hotels

01:31:38have white bed sheets.

01:31:40They choose this color

01:31:42to show how high

01:31:44their standards of cleanliness

01:31:46are.

01:31:48The whiter the sheets,

01:31:50the more high-end the hotel looks.

01:31:52It is much easier

01:31:54to see the dirt

01:31:56and stains on white laundry.

01:31:58So let's take a coffee break.

01:32:00You enter the nearest café,

01:32:02you place your order

01:32:04and you realize

01:32:06that you really need to go to the toilet.

01:32:08They are normal public toilets

01:32:10with several cabins.

01:32:12When you choose yours,

01:32:14the one in the middle,

01:32:16you go inside

01:32:18and your mind starts to wonder

01:32:20why the hell do the doors

01:32:22of the toilets have a space

01:32:24of 1.5 cm between the door and the lock?

01:32:26And why the hell

01:32:28do the doors of the public toilets

01:32:30have so much space?

01:32:32Well, my friend,

01:32:34there is not only one specific reason

01:32:36why the doors of public toilets

01:32:38have so much space,

01:32:40but rather several.

01:32:42Public toilets are designed

01:32:44so that people spend

01:32:46as little time as possible.

01:32:48You are not supposed to feel

01:32:50comfortable or at home.

01:32:52The design must therefore reflect

01:32:54this goal.

01:32:56Here is the reason for the spaces.

01:32:59Then there is the question of price.

01:33:01The manufacture of personalized doors

01:33:03can represent a heavy burden

01:33:05for people who build public toilets.

01:33:07This implies knowing the exact measurements

01:33:09so that the doors always correspond

01:33:11to the format of the cabins

01:33:13in which they are supposed to be installed.

01:33:15However, all public toilet spaces

01:33:17do not necessarily have the same size.

01:33:19They can vary,

01:33:21even if this variation is weak

01:33:23and often imperceptible.

01:33:25These interstices therefore contribute

01:33:26to reduce error margins

01:33:28and make production more profitable

01:33:30for the people who finance them.

01:33:32If a door is wider

01:33:34or narrower than it should be,

01:33:36this space regularizes the differences

01:33:38and allows them to be installed anyway.

01:33:40There is also the case

01:33:42of air circulation.

01:33:44The last thing you want to do

01:33:46in a public toilet room

01:33:48is to imprison the smells,

01:33:50isn't it?

01:33:52So you need a little space

01:33:54under and between the doors

01:33:56so that people outside

01:33:58can see if someone inside the cabin

01:34:00doesn't feel well

01:34:02and may need help.

01:34:04And what about this additional hole

01:34:06in the upper part of the sink?

01:34:08It has a name,

01:34:10the overflow hole.

01:34:12It is designed to prevent the sink from overflowing.

01:34:14So, if someone forgets

01:34:16and leaves the tap open for too long

01:34:18or if the sink is blocked

01:34:20and the water cannot flow

01:34:22through the main evacuation hole,

01:34:24the overflow hole comes to the rescue.

01:34:26This is done before the floor

01:34:28of the bathroom is flooded.

01:34:30Have you ever noticed

01:34:32how pleasant the process

01:34:34of closing a car door can be?

01:34:36Automobile manufacturers

01:34:38devote a lot of time

01:34:40to designing these sounds.

01:34:42Studies have shown

01:34:44that they create a sense of quality

01:34:46in the buyer.

01:34:48It all starts with the basic material.

01:34:50While older cars were made

01:34:52with heavier materials,

01:34:54the doors of current cars

01:34:56were made with lighter materials.

01:34:58Automobile manufacturers

01:35:00employ sound engineers

01:35:02to ensure that there is the exact amount

01:35:04of foam, carpet and tin

01:35:06in the composition of a car

01:35:08in order to produce

01:35:10the most comforting sound possible.

01:35:12And what about these little dots

01:35:14on the top of the front window of your car?

01:35:16The pattern of these little black dots

01:35:18minimizes the distractions for your eyes.

01:35:20This black part,

01:35:22also called the frieze,

01:35:24is normally warmer

01:35:26and is not made

01:35:28to suspend stuffed dots

01:35:30or pleasant odors on the nose.

01:35:32It is actually a switch

01:35:34that allows you to adjust

01:35:36the position of the rearview mirror

01:35:38according to the time of day.

01:35:40Push it in one direction

01:35:42and it is the daytime driving mode.

01:35:44In the other direction,

01:35:46you are ready to drive safely at night

01:35:48because it reduces the dazzling

01:35:50caused by the headlights of the cars

01:35:52that follow you.

01:35:54The next time you go to the supermarket,

01:35:56look for a well-kept key that can help you.

01:35:58If you have your house keys on you,

01:36:00look if the head of the key is rounded.

01:36:02If you find one,

01:36:04try to use it to unlock the cart.

01:36:06It should fit perfectly

01:36:08and prevent you from having to carry coins.

01:36:10Because, to be honest,

01:36:12who has them nowadays?

01:36:14Let's move on to the elevators.

01:36:16If you want to use them

01:36:18by going directly where you want,

01:36:20try this trick.

01:36:22Most elevators have a secret combination

01:36:24of buttons that you can use

01:36:26directly to the one of your choice.

01:36:28It can work

01:36:30especially the days when you pressed the 13

01:36:32but when you wanted to press the 33.

01:36:34In most elevators,

01:36:36it works if you simultaneously press

01:36:38the close door button

01:36:40and your floor number.

01:36:42This should allow you to reach your floor

01:36:44without stopping.

01:36:46Some elevators ask you to press

01:36:48the selected floor numbers twice

01:36:50because a double press often cancels

01:36:52the previously made request.

01:36:54Other elevators ask you

01:36:56to press the floor numbers twice

01:36:58that you want to cancel.

01:37:00However, to avoid any problem,

01:37:02it is preferable not to cancel the floors

01:37:04of other people in the elevator.

01:37:06They won't take it well.

01:37:08Keep in mind that some elevators

01:37:10may not have this function.

01:37:12For honey lovers,

01:37:14raise your hand!

01:37:16If your honey pot is golden and crystallized,

01:37:18remember that it is a good sign.

01:37:20Crystallized honey means

01:37:22that it has not been pasteurized

01:37:24which means a better quality of the product

01:37:26and the natural ingredient of honey,

01:37:28also known as glucose,

01:37:30will crystallize it.

01:37:32Now, try to get the best out of it.

01:37:34To add texture to your oatmeal

01:37:36or toast,

01:37:38add a layer of crystallized honey

01:37:40and enjoy the sweetness of nature.

01:37:42And if you don't like crystallized honey,

01:37:44put it in the microwave for a minute or two.

01:37:46Ah, winter and autumn,

01:37:48you know what that means,

01:37:50don't you?

01:37:52But there is nothing more annoying

01:37:54than wearing your beautiful wool sweater

01:37:56I don't want to make a fuss,

01:37:58but don't you want to talk about

01:38:00the hell of scratching sweaters?

01:38:02To prevent this from happening again,

01:38:04here is the secret.

01:38:06Put your sweater upside down

01:38:08and soak it in cold water.

01:38:10Add 2 to 3 tablespoons of vinegar

01:38:12and let it soak for a while.

01:38:14Then empty the water.

01:38:16Now, while the sweater is still wet,

01:38:18apply a generous amount of aftershave

01:38:20on the fibers of the wool.

01:38:22After letting it soak in the aftershave

01:38:24for about 30 minutes,

01:38:26dry it flat on a towel.

01:38:28And that's it!

01:38:30No more scratching sweater!

01:38:32In all the fast food restaurants you go to,

01:38:34you will find small paper cups

01:38:36that you can fill with ketchup,

01:38:38mustard or barbecue sauce.

01:38:40But if you eat chicken nuggets

01:38:42or if you try to dip your hamburger

01:38:44in the cup,

01:38:46there is always a little sauce

01:38:48that seems impossible to reach.

01:38:50Next time, try to unfold the cup.

01:38:52It will turn into a small paper plate

01:38:54and this way,

01:38:56it will be easier to pierce at the start.

01:38:58The padlocks used in outdoor environments

01:39:00must be cleaned and lubricated

01:39:02every 3 months.

01:39:04Regular lubrication

01:39:06will help prevent the padlocks from freezing

01:39:08in the cold.

01:39:10Look for the tiny hole

01:39:12on the bottom of the padlock.

01:39:14Pour oil into it

01:39:16and there you go, it opens again.

01:39:18One thing we often forget

01:39:20is the tip on the cap of a cream.

01:39:22These pointed surfaces

01:39:24were designed to help us

01:39:26keep the padlock open

01:39:28and pierce the tip with its own tip

01:39:30and there you go.

01:39:32After a long day of work,

01:39:34all you really need

01:39:36is a foam bath.

01:39:38You open the hot water

01:39:40and let it flow for a few minutes.

01:39:42You can even light a candle

01:39:44and pour some essential oils into the water.

01:39:46Then you add the liquid soap.

01:39:48You stir the water

01:39:50until the entire surface of the bathtub

01:39:52is filled with bubbles

01:39:54and you enter the bath.

01:39:56Their role is to preserve

01:39:58the temperature of the water

01:40:00so that you can enjoy

01:40:02hot water for a longer time.

01:40:04Do you have sweaty feet?

01:40:06Strange question, I know.

01:40:08But if you are one of these people,

01:40:10here is some good news.

01:40:12Everything is not lost.

01:40:14Try to put a tea bag in your shoes

01:40:16and put them in a dry place

01:40:18for a while.

01:40:20The tea bags will absorb

01:40:22the moisture and smell

01:40:24of the soles of your shoes.

01:40:26If you learned something new today,

01:40:28don't hesitate to tell us

01:40:30in the comments below.

01:40:57More than 40 billion Oreos

01:40:59are made each year.

01:41:01It is the best-selling

01:41:03industrial biscuit in the world.

01:41:05The geometric drawing

01:41:07stamped on these biscuits

01:41:09has the Nabisco logo,

01:41:11symbol of American quality,

01:41:13surrounding the word Oreo.

01:41:15William Tierney created

01:41:17the design of this chocolate biscuit

01:41:19as we know it today

01:41:21in 1952.

01:41:23If you use reusable bottles,

01:41:24you probably know

01:41:26that they sometimes tend to smell bad.

01:41:28Even if you only use them

01:41:30to put ordinary water in them,

01:41:32they still end up smelling.

01:41:34But it is not the water itself

01:41:36that releases this smell.

01:41:38It is the microorganisms it contains.

01:41:40If you drink water in a bottle,

01:41:42the particles of your saliva

01:41:44and sweat remain inside.

01:41:46These bacteria begin to accumulate

01:41:48in the bottle,

01:41:50which generates this smell.

01:41:52If you choose reusable bottles,

01:41:54the bacteria do not accumulate.

01:41:56After washing it,

01:41:58let it dry completely

01:42:00before reusing it.

01:42:02There are not only jeans that are blue.

01:42:04Police uniforms are too.

01:42:06The first policemen

01:42:08dressed like this

01:42:10appeared in London in the 19th century.

01:42:12They received this blue uniform

01:42:14to contrast with the red and white uniform

01:42:16that the military already wore.

01:42:18Two decades later,

01:42:20such police forces

01:42:22were adopted in the United States

01:42:24because this color

01:42:26turned out to be very effective.

01:42:28They blend into a nocturnal environment

01:42:30and the policemen can observe

01:42:32what is happening without being noticed.

01:42:34In addition, the spots are not too visible

01:42:36on dark fabrics.

01:42:38And then everyone knows

01:42:40that the policemen wear blue

01:42:42and that they are recognized

01:42:44by this single color.

01:42:46So why mess all this up?

01:42:48Baby carrots are tiny

01:42:50and unlike ordinary carrots,

01:42:52they are wet,

01:42:54but baby carrots

01:42:56are not special carrots.

01:42:58They are made from ordinary carrots

01:43:00by removing the skin

01:43:02and the outer layers

01:43:04and then rolling them

01:43:06to make them look prettier.

01:43:08The problem is that they can no longer

01:43:10retain moisture.

01:43:12A normal carrot retains

01:43:14a certain amount of water in it

01:43:16thanks to the layers that imprison it.

01:43:18Once cut,

01:43:20the mini carrots dry easily.

01:43:22This is why they are generally

01:43:24not so popular anymore.

01:43:26Jacob Davis,

01:43:28the man who made the first pair of jeans,

01:43:30added leather rivets

01:43:32to the places where the pants

01:43:34are most likely to tear,

01:43:36namely the strap and the pockets

01:43:38to make them more resistant.

01:43:40Today, the rivets

01:43:42are more of a decorative function

01:43:44because they are a traditional feature

01:43:46of blue jeans.

01:43:48Another peculiarity of these pants

01:43:50is the presence of these small pockets

01:43:52that apparently serve no purpose.

01:43:54While jeans were particularly

01:43:56loved by cowboys,

01:43:58this small pocket was specially designed

01:44:00to store a watch.

01:44:02In addition, at the time,

01:44:04a jean had only four pockets.

01:44:06This tiny pocket,

01:44:08the watch pocket,

01:44:10two large pockets at the front

01:44:12and one pocket at the back.

01:44:14Car headrests are a matter of comfort

01:44:16and removable headrests

01:44:18are a matter of safety.

01:44:20If you remove a headrest,

01:44:22you will see two solid metal bars.

01:44:24You can use these bars

01:44:26to break the glass and escape.

01:44:28These little red spots

01:44:30that you sometimes see

01:44:32after breaking an egg

01:44:34are not worrisome.

01:44:36These tiny blood stains

01:44:38can be caused by the rupture

01:44:40of a small blood vessel

01:44:42in the hen when she laid her egg.

01:44:44Eggs with these blood stains

01:44:46can be consumed without danger,

01:44:48but they can also be removed

01:44:50if it bothers you.

01:44:52This will not affect the taste of the egg.

01:44:54There is also a teddy bear

01:44:56standing on its hind legs

01:44:58and about to devour this yodeler over there.

01:45:00No, I'm kidding.

01:45:02This is explained by the fact

01:45:04that bears were very present

01:45:06on the side of Bern,

01:45:08one of the largest cities in Switzerland,

01:45:10where its founder created

01:45:12the famous chocolate triangle snack.

01:45:14Toblerone also relies on a word game

01:45:16between the creator's family name,

01:45:18Theodore Tobler,

01:45:20and the Italian word torone,

01:45:22which designates a nougat with honey

01:45:24during transport.

01:45:26This technique is called

01:45:28intermediate suspension.

01:45:30Not only are the nougats better protected

01:45:32in their polystyrene goblets,

01:45:34but they also soften more quickly

01:45:36and more uniformly.

01:45:38You probably thought that this hole

01:45:40in the body of the ball pen

01:45:42had no reason to be,

01:45:44and yet there is one.

01:45:46It is an aeration system

01:45:48that allows the ink to flow more easily.

01:45:50In this way,

01:45:52an equal air pressure

01:45:54can flow more easily into the tip.

01:45:56It is not a coincidence

01:45:58that soy sauce bottles

01:46:00have two beakers.

01:46:02The sauce is very liquid

01:46:04and flows out of the bottle

01:46:06quite quickly as soon as it is turned over.

01:46:08Most Asian cuisine lovers

01:46:10will admit having spilled it

01:46:12at least once in their lives.

01:46:14This is why, nowadays,

01:46:16restaurants prefer to serve

01:46:18soy sauce in special bottles

01:46:20with two beakers.

01:46:22This design allows you to control

01:46:24the flow of the sauce

01:46:26while you pour it.

01:46:28If you press your finger hard on it,

01:46:30the sauce will automatically stop flowing.

01:46:32And if you remove it,

01:46:34it will flow again.

01:46:36Now I challenge you

01:46:38to get your fingers in your nose.

01:46:40You have probably noticed

01:46:42that the seats of trains and buses

01:46:44were covered with fabric

01:46:46with a bizarro pattern.

01:46:48Do you know why?

01:46:50These patterns are used

01:46:52to cover dirt and stains

01:46:54on the seats.

01:46:56In addition, these patterns

01:46:58are generally so ugly

01:47:00that no one wants to look at them

01:47:02long enough to reveal anything.

01:47:04So yes, the pattern is there

01:47:06to make you look away

01:47:08and, if you look at it,

01:47:10to make it less visible.

01:47:12No bus will ever have

01:47:14a single white seat.

01:47:16This is guaranteed.

01:47:18The metal tab of the soda cans

01:47:20can be turned over

01:47:22and you can slip a straw

01:47:24into one of them.

01:47:26You remember, right?

01:47:28It could be very pointy

01:47:30and easily pose a threat

01:47:32to the people in charge

01:47:34of sorting the garbage.

01:47:36Now you can insert your straw

01:47:38directly into one of them.

01:47:40This also means

01:47:42that you can produce bubbles

01:47:44and make all your friends

01:47:46laugh like a three-year-old.

01:47:48Sometimes, when you buy clothes,

01:47:50you receive a plastic bag

01:47:52containing an extra button

01:47:54that can be used

01:47:56to test the effects

01:47:58of various detergents

01:48:00on certain surfaces.

01:48:02It is also practical

01:48:04to test the washing cycles

01:48:06of your machine

01:48:08before using them

01:48:10to wash the entire garment.

01:48:12The mechanical stairs

01:48:14are equipped with these

01:48:16hard-haired black brushes

01:48:18for the same reason

01:48:20that some of them

01:48:22have yellow lines

01:48:24on the stairs.

01:48:26This brush is a small barrier

01:48:28that avoids this.

01:48:30It also allows you

01:48:32to catch plushies

01:48:34and prevent other small objects

01:48:36from falling into the interstices.

01:48:38The dishes containers

01:48:40that are most often

01:48:42associated with Chinese restaurants

01:48:44are designed not only

01:48:46to bring dishes home

01:48:48but also to store them

01:48:50in the refrigerator.

01:48:52They can also be used

01:48:54to store oysters.

01:48:56They were patented in 1894

01:48:58to transport freshly shelled oysters

01:49:00and were known

01:49:02overseas as Oyster Pails.

01:49:04They were then adapted

01:49:06to serve as water containers

01:49:08for food.

01:49:10Have you ever wondered

01:49:12why the coins had

01:49:14these small stripes on the edge?

01:49:16It is a vestige

01:49:18of the time

01:49:20when they were much more valuable.

01:49:21These stripes

01:49:23were created

01:49:25to make it much easier

01:49:27to distinguish the coins

01:49:29that had been altered.

01:49:31It is no longer necessary today

01:49:33but the coins still have this style.

01:49:35All crackers and some biscuits

01:49:37have small holes in the middle

01:49:39to ensure that the final product

01:49:41will have the right texture.

01:49:43These tiny holes

01:49:45allow the steam to escape

01:49:47so that the biscuits do not break.

01:49:49If you did not prick the dough,

01:49:51it would be rather strange.

01:49:53Dogs like to walk around

01:49:55before going to bed

01:49:57because they inherited

01:49:59this behavior from their ancestors.

01:50:01At the time,

01:50:03there were no well-fed baskets

01:50:05for the doggies

01:50:07and most of them

01:50:09had to repel the tall grass

01:50:11to create a small corner

01:50:13to crawl.

01:50:15In addition,

01:50:17these movements

01:50:19made all the animals

01:50:21look like dogs.

01:50:23This behavior

01:50:25was often associated

01:50:27with the American police

01:50:29because in the 1950s

01:50:31the donut shops

01:50:33were one of the rare places

01:50:35to stay open late at night.

01:50:37It was the ideal place

01:50:39for the police

01:50:41who wanted to nibble a piece

01:50:43or even take care of the paper

01:50:45during their night shift.

01:50:47If your jean is blue on the outside

01:50:49and white on the inside,

01:50:51it indicates the amount of dye

01:50:53necessary for each garment.

01:50:55It is not as if they were gold-plated.

01:50:57Landing gear tires

01:50:59do not burst

01:51:01because they are designed

01:51:03for a load 4 to 5 times higher

01:51:05than those they undergo

01:51:07during landing.

01:51:09The wheel itself can break

01:51:11but the tire does not burst.

01:51:13This little trick

01:51:15based on behavioral psychology

01:51:17can help you choose

01:51:19the fastest line at the airport.

01:51:21Most people are right-handed

01:51:23and intuitively choose

01:51:25the right side.

01:51:27Your skin usually becomes

01:51:29a little dry during the flight.

01:51:31This is due to the low humidity

01:51:33in the cabin.

01:51:35Bring a good moisturizing cream

01:51:37with you to keep your skin hydrated on board.

01:51:39Did you know that the pilot

01:51:41and co-pilot of an airplane

01:51:43always eat different meals

01:51:45before a flight?

01:51:47In this way,

01:51:49if one of them has food poisoning,

01:51:51he or she will have to eat

01:51:53a different meal.

01:51:55Airplane tablets

01:51:57are one of the dirtiest surfaces

01:51:59in the cabin.

01:52:01So make sure you wash your hands

01:52:03frequently and clean the tablet

01:52:05with an antibacterial cloth

01:52:07to get rid of all the bacteria

01:52:09that are piling up.

01:52:11If you are sitting on a seat

01:52:13next to the corridor,

01:52:15you can have more space

01:52:17to stretch your legs.

01:52:19Just press the button

01:52:21and you are ready to go.

01:52:23This is one of the reasons

01:52:25why the light in the cabin

01:52:27is dimmed.

01:52:29Passengers must get used

01:52:31to the darkness

01:52:33in case of an emergency landing

01:52:35at night.

01:52:37In this way,

01:52:39their eyes will already be used

01:52:41to the absence of light,

01:52:43which will facilitate the evacuation.

01:52:45The flight attendants

01:52:47ask you to lift the windows

01:52:49so that they can see

01:52:51the sun's rays

01:52:53and prevent the plane from overheating.

01:52:55Another good reason

01:52:57is that white paint is cheaper.

01:52:59In addition,

01:53:01workers and engineers

01:53:03can easily notice any damage

01:53:05on a white surface.

01:53:07It is preferable to avoid

01:53:09taking important decisions

01:53:11during a flight.

01:53:13Your brain does not receive

01:53:15enough oxygen at such a height

01:53:17and this negatively affects

01:53:19its functioning.

01:53:21It is not thanks to the candy itself,

01:53:23but thanks to the deglutition process.

01:53:25Bathing also helps.

01:53:27As for chewing gum,

01:53:29it also helps to get rid

01:53:31of this bad breath

01:53:33caused by the rarefied air

01:53:35at high altitudes

01:53:37that removes the humidity

01:53:39from your body.

01:53:41The dry air can give you the impression

01:53:43that you are getting cold.

01:53:45The cabin air dries your nose

01:53:47and your throat

01:53:49as if you had the symptoms

01:53:51of a cold.

01:53:53Making coffee and tea on board

01:53:55is not always very clean.

01:53:57Many companies

01:53:59use very good water filters today,

01:54:01but it is better to ask for bottled water

01:54:03if you are thirsty.

01:54:05This small triangle on the plane's wall

01:54:07above your seat

01:54:09means a lot for the flight attendants.

01:54:11These triangles mark the windows

01:54:13through which you can see

01:54:15the flashing lights.

01:54:17This indicates the retraction

01:54:19of the landing brakes

01:54:21towards the window

01:54:23to check what is going on.

01:54:25And for the passengers,

01:54:27this is simply the best place

01:54:29for photos

01:54:31as you can see the wings perfectly.

01:54:33The seats in the middle of the cabin

01:54:35above the wings

01:54:37are the best if you have trouble getting on board.

01:54:39This area is more balanced

01:54:41and shakes less during turbulence.

01:54:43If you tend to be nervous

01:54:45during the flight,

01:54:47do a little physical exercise

01:54:49just before getting on the plane.

01:54:51This will help your body

01:54:53release endorphins,

01:54:55the hormones of happiness.

01:54:57In addition, this physical activity

01:54:59compensates for the hours

01:55:01you spend sitting without moving.

01:55:03Turbines are placed under the wings

01:55:05because it makes the maintenance

01:55:07of the engines less expensive,

01:55:09faster and easier.

01:55:11Previously, they were placed

01:55:13at the level of the tail.

01:55:15This required expensive equipment

01:55:17and much more time to repair them.

01:55:19When we started to install

01:55:21the air-conditioning system,

01:55:23you see the burner system

01:55:25installed under the balloon,

01:55:27also called an envelope,

01:55:29it heats the air inside

01:55:31which makes the aircraft go up.

01:55:33Turbulences on a plane

01:55:35are this same hot air

01:55:37but created by nature.

01:55:39When the air warms up,

01:55:41it makes a plane go up.

01:55:43When it gets colder,

01:55:45the plane goes down

01:55:47and the passengers feel

01:55:49like they are doing roller coasters.

01:55:51The air is so light

01:55:53that the passengers don't feel it.

01:55:55Do you know that planes can fly

01:55:57even after a failure of an engine?

01:55:59Pilots can handle such an emergency

01:56:01and land the plane safely.

01:56:03Passengers can feel

01:56:05a slight inclination during the flight

01:56:07but in most cases

01:56:09they don't even know

01:56:11that the plane is flying

01:56:13with just one engine.

01:56:15Your eyes receive oxygen

01:56:17directly from the air.

01:56:19They are not driven by blood.

01:56:21They help you keep your eyes moist.

01:56:24It is forbidden to carry

01:56:26large volumes of liquid on board

01:56:28because some dangerous substances

01:56:30can easily be dissolved in water.

01:56:32If a plane has to sink,

01:56:34its wings become lifeboats.

01:56:36Empty fuel tanks

01:56:38also help the planes to float.

01:56:40In fact, it can take 10 to 60 hours

01:56:42before the plane sinks.

01:56:44It all depends on the model,

01:56:46the weather conditions

01:56:48and the pilot's skills.

01:56:49These smiling air hostesses

01:56:51that you meet when you enter the cabin

01:56:53usually hide their hands behind their backs.

01:56:55They count the people

01:56:57who enter the plane

01:56:59to make sure that all the passengers are on board.

01:57:01Despite what people say

01:57:03about the food in the planes,

01:57:05it is actually not so bad.

01:57:07The problem is your sense of taste

01:57:09which is no longer as efficient

01:57:11because the cabin air makes your mouth dry.

01:57:13It also fades your smell.

01:57:15This is why airlines

01:57:17add a lot of spices and salt

01:57:19to your food.

01:57:21Is it true that your hair grows faster

01:57:23during a flight?

01:57:25Not really.

01:57:27Scientists have not been able to prove it.

01:57:29This myth appeared in the first part

01:57:31of the 20th century

01:57:33when some passengers noticed

01:57:35that their beards had grown more

01:57:37during a flight.

01:57:39It is normal for people to have a headache

01:57:41during a flight,

01:57:43especially just after take-off.

01:57:45You climb to a higher altitude

01:57:47than Mount Everest

01:57:49and the safety belts

01:57:51are placed above your belly

01:57:53to prevent you from being thrown

01:57:55against the ceiling

01:57:57in case of turbulence.

01:57:59When this happens,

01:58:01the plane starts to move from top to bottom

01:58:03and your belt holds you firmly.

01:58:05Conversely, the safety belts in cars

01:58:07protect people from horizontal collisions.

01:58:09The planes have a special protection

01:58:11against lightning.

01:58:13Even if it strikes,

01:58:15passengers will not feel it.

01:58:17The planes are covered

01:58:19by a protective layer

01:58:21that does not allow it

01:58:23to penetrate inside the plane.

01:58:25The electronics

01:58:27and fuel tanks

01:58:29also have an additional protection.

01:58:31Plane seats are uncomfortable

01:58:33because airlines

01:58:35try to fit as many passengers

01:58:37as possible in a plane.

01:58:39This is why there is so little space

01:58:41between the seats.

01:58:43Two additional rows

01:58:45means 12 more passengers.

01:58:47In addition,

01:58:49a plane seat costs

01:58:51€15,000.

01:58:53And by the way,

01:58:55your seat has a waterproof coating.

01:58:57This is necessary

01:58:59to prevent a fire from spreading

01:59:01in case of an accident.

01:59:03Airport employees

01:59:05carry unrequited luggage

01:59:07to special centers.

01:59:09If the owner does not show up

01:59:11within three months,

01:59:13the luggage is sold

01:59:15in specialized stores.

01:59:17In the past,

01:59:19the plane's electronics

01:59:21were insulated.

01:59:23Oxygen masks fall

01:59:25not only during strong turbulence,

01:59:27but also when air pressure

01:59:29inside the cabin

01:59:31changes radically.

01:59:33Passengers are not at risk

01:59:35if they wear oxygen masks.

01:59:37But in such cases,

01:59:39they are considered an emergency

01:59:41and pilots do their best

01:59:43to quickly descend

01:59:45to a safe altitude

01:59:47so that passengers

01:59:49do not fall behind

01:59:51the most famous paintings in the world.

01:59:53We are talking about works

01:59:55by Leonardo da Vinci, Michelangelo

01:59:57or Picasso.

01:59:59Don't forget your magnifying glass

02:00:01because your adventure

02:00:03is about to begin.

02:00:05The first city on your list

02:00:07is Rome.

02:00:09After tasting delicious pasta,

02:00:11you head to the Sistine Chapel

02:00:13which houses the most famous ceiling

02:00:15in the world.

02:00:17Have you ever heard

02:00:19about a complex platform system

02:00:21that allows you to paint standing up?

02:00:23You are admiring

02:00:25the creation of Adam

02:00:27who is the fresco in the middle.

02:00:29The Italian artist was known

02:00:31for his precise knowledge

02:00:33of human anatomy.

02:00:35Art experts say

02:00:37that the right part of the painting

02:00:39is an anatomically correct representation

02:00:41of an enlarged brain.

02:00:43To verify it,

02:00:45you try to superimpose

02:00:47an image of the organ

02:00:49and the pituitary gland

02:00:51are all there.

02:00:53Even the floating thing

02:00:55in the shape of a green scarf

02:00:57seems to correspond

02:00:59to the vertebral artery.

02:01:01Some researchers think

02:01:03that this is the way

02:01:05Michelangelo painted

02:01:07knowledge and wisdom

02:01:09but you need a night's sleep

02:01:11to get a definitive idea.

02:01:13The next day,

02:01:15you catch a train

02:01:17and arrive in Florence.

02:01:19This is the David of Michelangelo.

02:01:21This David is a marvel

02:01:23of marble 5 meters high.

02:01:25It has been sculpted

02:01:27for about 3 years.

02:01:29The mystery around it

02:01:31is to discover

02:01:33the true expression of the statue.

02:01:35By looking at it from below,

02:01:37you can tell

02:01:39that its face is serene and peaceful.

02:01:41But art historians

02:01:43say that this work

02:01:45has been widely misunderstood.

02:01:47Apparently,

02:01:49the veins of his arms are sagging.

02:01:51He doesn't look so relaxed

02:01:53after all, does he?

02:01:55Michelangelo's idea

02:01:57was to represent David

02:01:59just before a major confrontation.

02:02:01So maybe he wasn't

02:02:03as serene as that.

02:02:05Italy is so rich in works of art

02:02:07that you can't leave right away.

02:02:09You are still in Florence

02:02:11and you are now visiting

02:02:13the famous Gallery des Offices.

02:02:15Many famous paintings

02:02:17are housed in this museum.

02:02:19For example,

02:02:21Botticelli's painting.

02:02:23This work of art

02:02:25was shrouded in mystery

02:02:27from the start.

02:02:29Experts don't know

02:02:31the exact year it was commissioned.

02:02:33It remained without a title

02:02:35for years

02:02:37until the painter

02:02:39Giorgio Vasari

02:02:41finally found a name for it.

02:02:43Usually,

02:02:45when critics and the public

02:02:47admire this painting,

02:02:49they do so with

02:02:51almost photographic precision.

02:02:53And in the whole painting,

02:02:55these plant figures

02:02:57are repeated more than 200 times.

02:02:59Incredible!

02:03:01These days of visit

02:03:03were well filled, weren't they?

02:03:05Are you ready to continue?

02:03:07You jump in a plane

02:03:09and arrive in Paris,

02:03:11the city of lights,

02:03:13love and the famous Joconde.

02:03:15You cross the Louvre Museum

02:03:17and arrive in front of

02:03:19the famous Joconde.

02:03:21Solid arguments have been put forward

02:03:23to say that the Joconde

02:03:25could be a self-portrait of the painter himself.

02:03:27Historians have carefully compared

02:03:29his face to that of Mona Lisa

02:03:31and they are surprisingly similar.

02:03:33And then there is the theory

02:03:35of the smile in the corner.

02:03:37The dentist and art expert

02:03:39Joseph Bartofsky claims

02:03:41to have discovered the secret

02:03:43of Mona Lisa's rictus.

02:03:45He says that her tight facial expression

02:03:47is the typical indication

02:03:49that she is a painter.

02:03:51In 2010,

02:03:53the Italian Committee for Cultural Heritage

02:03:55also discovered a collection

02:03:57of hidden symbols in the painting.

02:03:59These are only visible

02:04:01with high-tech magnifying glasses,

02:04:03but they revealed that Leonardo da Vinci

02:04:05had inscribed an LV

02:04:07inside the right eye of Mona Lisa.

02:04:09Experts think

02:04:11this is the painter's signature,

02:04:13but the other symbols,

02:04:15a CE in the left eye

02:04:17and a 72 in the arch

02:04:19make a lot of discoveries at once.

02:04:21Of course,

02:04:23at the end of your visit,

02:04:25don't forget to test

02:04:27if his eyes really follow you.

02:04:29Now you're going to Amsterdam

02:04:31to visit the Rijksmuseum.

02:04:33You came to see a specific painting

02:04:35by Rembrandt

02:04:37that hides a mysterious story.

02:04:39The Night Round

02:04:41is one of the most famous paintings

02:04:43by the Flemish painter,

02:04:45but experts say

02:04:47that the name of the painting

02:04:49means a group of people

02:04:51ready to embark on a mission.

02:04:53Rembrandt's technique

02:04:55is called the clair-obscure

02:04:57and highlights the contrast

02:04:59between shadow and light.

02:05:01Until 1947,

02:05:03art critics thought

02:05:05that the painter was painting

02:05:07a night scene,

02:05:09but when the painting was removed

02:05:11from a thick layer of dust,

02:05:13it became clear

02:05:15that the scene was taking place

02:05:17in the middle of the day

02:05:19and in the middle of the night.

02:05:21During your stay in Amsterdam,

02:05:23you also visit a museum

02:05:25dedicated to the art of Vincent van Gogh.

02:05:27Did you know that he painted

02:05:29more than 900 paintings

02:05:31during a period of only 10 years?

02:05:33Anyway,

02:05:35the Van Gogh Museum

02:05:37houses the largest collection

02:05:39of ground-turning paintings

02:05:41you'll probably see in your life.

02:05:43In fact,

02:05:45almost all of Van Gogh's paintings

02:05:47feature dominant yellow tones.

02:05:49Van Gogh's diamond

02:05:51changed his perception of colours,

02:05:53making him see more yellow

02:05:55around him.

02:05:57Well, our journey continues.

02:05:59The next stop on your list

02:06:01is the United Kingdom,

02:06:03heading to the National Gallery.

02:06:05You could spend hours

02:06:07admiring the painting

02:06:09Les époux Arnolfini

02:06:11by Jan van Eyck

02:06:13and not see anything out of the ordinary.

02:06:15At first glance,

02:06:17a couple hold hands

02:06:19with another person in the room.

02:06:21Art experts say

02:06:23that the male figure in the painting

02:06:25raised his hands

02:06:27to greet the two people

02:06:29seen in the mirror

02:06:31and that one of the characters

02:06:33is Van Eyck himself.

02:06:35And it's not the only filigree

02:06:37the painter left behind.

02:06:39Above the mirror,

02:06:41you'll see his flamboyant signature

02:06:43Jan van Eyck et Attissi, 1434.

02:06:45Speaking of painters

02:06:47who leave traces of their own presence,

02:06:49let's take a look

02:06:51at one of his famous paintings,

02:06:53Bacchus.

02:06:55This one is a bit hard to spot.

02:06:57In the half-full carafe,

02:06:59in the lower left corner of the painting,

02:07:01there's a tiny self-portrait

02:07:03of the painter himself

02:07:05hidden in the liquid.

02:07:07To see the image clearly,

02:07:09you need a sophisticated technology

02:07:11or at least a very effective magnifying glass.

02:07:13But he's right there,

02:07:15a male character,

02:07:17alias Caravaggio,

02:07:19painted for the first time in 1922,

02:07:21more than 300 years

02:07:23after the painting was finished.

02:07:25But it was ignored

02:07:27due to its poor preservation.

02:07:29To conclude your journey,

02:07:31you fly across the Atlantic

02:07:33to Chicago.

02:07:35The huge collection of the Art Institute

02:07:37houses a well-known painting

02:07:39by Pablo Picasso,

02:07:41the old guitarist.

02:07:43The secret of this painting

02:07:45is so well hidden

02:07:46and so sophisticated.

02:07:48But the results are worth it.

02:07:50The findings show

02:07:52that Picasso painted the old guitarist

02:07:54on top of another unfinished painting.

02:07:56You can clearly see

02:07:58the contours and shapes

02:08:00of a half-drawn female figure

02:08:02that Picasso abandoned

02:08:04in the middle of his work.

02:08:06The emerging artists of the time

02:08:08often used this way

02:08:10to save money

02:08:12because paintings were expensive.

02:08:14And that's it for this world tour

02:08:16of the world of Sherlock Holmes.

02:08:18Have you ever taken a moment

02:08:20to think about the exciting secrets

02:08:22of today's everyday life

02:08:24on planet Earth?

02:08:26We're talking about small doors

02:08:28in washing machines

02:08:30and small holes in plane windows.

02:08:32If you have no idea

02:08:34of what we're talking about,

02:08:36let yourself be surprised

02:08:38and you'll discover a lot of things.

02:08:40You see this drawer

02:08:42under your oven?

02:08:44Maybe you've ignored it

02:08:46because it's used

02:08:48to store pans and pans.

02:08:50Well, even if it can actually

02:08:52serve as a storage space,

02:08:54it's not its only function.

02:08:56The best way to use this drawer

02:08:58is to keep your meal warm

02:09:00while you wait to serve it.

02:09:02Great, isn't it?

02:09:04Speaking of secret spaces,

02:09:06did you notice that most washing machines

02:09:08also had small folding doors at the bottom?

02:09:10These doors actually serve

02:09:12as evacuation hatches.

02:09:14This is where all the stuff

02:09:16you need is stored.

02:09:18It's a kind of collector

02:09:20for small intruders.

02:09:22It prevents them from reaching

02:09:24the evacuation hatches

02:09:26and locking them.

02:09:28This saves hundreds of euros

02:09:30in repair each month.

02:09:32Now, who hasn't had the hard task

02:09:34of measuring the exact amount

02:09:36of leather spaghetti per person?

02:09:38Here's the solution.

02:09:40The hole in the middle

02:09:42of the leather.

02:09:44It's there to measure

02:09:46the amount of spaghetti per person.

02:09:48On a similar subject,

02:09:50have you ever wondered

02:09:52why the pen caps had a hole?

02:09:54You may have thought

02:09:56it was a technical feature

02:09:58used to regulate air pressure.

02:10:00But in reality,

02:10:02this hole has a much simpler

02:10:04and more important function.

02:10:06Reduce the risk of suffocation.

02:10:08Many people like to bite

02:10:10their pen caps

02:10:12and this tiny hole

02:10:14prevents them from suffocating

02:10:16in their throats.

02:10:18For cooking lovers,

02:10:20there's a secret

02:10:22hidden under your nose

02:10:24that can change your life.

02:10:26Think of the pan.

02:10:28Now, think of their handles.

02:10:30Yes, they also have a hole.

02:10:32And it turns out

02:10:34this hole was designed

02:10:36to house the spoon

02:10:38you use to cook.

02:10:40And instead of spilling sauce

02:10:42all over the kitchen,

02:10:44you can put the spoon

02:10:46in your pocket.

02:10:48Most door handles

02:10:50are made of brass

02:10:52because this material

02:10:54makes them naturally antibacterial.

02:10:56Unlike plastic,

02:10:58brass door handles

02:11:00are somehow magical.

02:11:02They can disinfect

02:11:04without you cleaning them.

02:11:06Have you ever noticed

02:11:08that under a meter

02:11:10there was a small hole?

02:11:12You can find it in the metal part

02:11:14on which you have to pull

02:11:16a nail to hold it

02:11:18while you measure.

02:11:20As for the margins of your notebook,

02:11:22they were invented

02:11:24to protect the pages from rotting.

02:11:26No, they didn't copy people's answers

02:11:28during math exams,

02:11:30but it was a time

02:11:32when people had to live

02:11:34with rats and mice

02:11:36who often rotted the paper.

02:11:38So, to prevent information

02:11:40from getting lost,

02:11:42we created margins.

02:11:44This way,

02:11:46through expression,

02:11:48you can digest information.

02:11:50And what about these tiny holes

02:11:52at the bottom of the plane's windows?

02:11:54They have an extremely important function,

02:11:56to regulate the air pressure

02:11:58inside the cabin.

02:12:00In other words,

02:12:02they help planes fly high in the sky.

02:12:04Pretty important, isn't it?

02:12:06In fact,

02:12:08a plane's tablets

02:12:10are the most germ-infected places

02:12:12in the entire cabin.

02:12:14Studies have shown

02:12:16that they are like

02:12:18toilet water.

02:12:20And now,

02:12:22what would you say

02:12:24to cut a commercial plane in half

02:12:26and see what's inside?

02:12:28Well, it would look more or less like this.

02:12:30Rows of seats at the top

02:12:32and everything that should be at the bottom.

02:12:34We're talking about passengers' luggage,

02:12:36emergency supplies,

02:12:38wing system parts,

02:12:40and so on.

02:12:42Well, let's move on to bowling balls,

02:12:44even if the transition is a bit brutal.

02:12:46If you cut a professional ball in half,

02:12:48you'll see a familiar shape.

02:12:50Take a good look.

02:12:52Can you see it?

02:12:54Doesn't it look like Simpa's logo?

02:12:56Anyway,

02:12:58professional bowling balls

02:13:00are different from your local bowling ball.

02:13:02That's because they are designed

02:13:04to make more precise movements.

02:13:06They actually have

02:13:08a very complex engineering inside.

02:13:10They are designed to help

02:13:12pros make more strikes.

02:13:14The weight of professional balls

02:13:16is more or less the same

02:13:18when they move on the bowling alley.

02:13:20So it's harder for them

02:13:22to get stuck in the gutters

02:13:24next to the alley.

02:13:26Speaking of bowling balls,

02:13:28let's take a look inside

02:13:30a baseball bat.

02:13:32To make it light and aerodynamic,

02:13:34the manufacturers use

02:13:36several different layers.

02:13:38Starting from the core,

02:13:40we have a black rubber-wrapped

02:13:42centerpiece.

02:13:44Then there's a layer of red rubber

02:13:46with a very visible white layer

02:13:48and this beautiful red seam

02:13:50on the side that unites it all.

02:13:52If you had a X-ray vision

02:13:54and you managed to look

02:13:56inside a human bone,

02:13:58what attracts the most attention

02:14:00is this structure

02:14:02that looks like a spider web

02:14:04in the center of the bone.

02:14:06In fact, it's a very condensed

02:14:08and complex structure of nerves

02:14:10that you have inside your bones.

02:14:12Now, a riddle.

02:14:14What is round,

02:14:16as in the Gutenheim Museum of New York?

02:14:19It's the one that's almost

02:14:21completely made of ramps.

02:14:23If you answered a shell

02:14:25of a nautile,

02:14:27you guessed right.

02:14:29A nautile is a shell

02:14:31that you can find

02:14:33in several souvenir shops

02:14:35near the beach.

02:14:37It's comprised of two layers,

02:14:39one outside with a matte white

02:14:41and one inside with a iridescent white.

02:14:44And if you had to divide it in two,

02:14:46excellent for healing and also for hydration.

02:14:49But if you managed to look inside an aloe leaf,

02:14:52the image you would see would be as satisfying as relaxing.

02:14:56Who has never dreamed of a pool filled with jam?

02:15:01There seems to be nothing more banal than a toothpaste tube,

02:15:04but you would change your mind if you cut a tube that contains several colors.

02:15:08There have been speculations that the inside of such a tube

02:15:12may be divided by barriers so that the strips do not mix.

02:15:16But if you cut it in half, you will see that it has only one inner space.

02:15:21It turns out that a complex science is hidden behind the manufacture of toothpaste.

02:15:25According to a specialist,

02:15:27it is necessary to ensure that all stripes have the same physical properties.

02:15:31In this way, colors are naturally prevented from mixing with each other.

02:15:35That's why if you cut a tube,

02:15:37you will see something that looks like several slices of pizza of different colors.

02:15:42Now, if you open your closet, you will find at least a few wooden belts.

02:15:47They are generally made of cedar wood, which is a natural repulsive against mites.

02:15:52For some people, the eyeliner is an essential part of everyday life.

02:15:57But did you know that in ancient Egypt,

02:16:00men and women wore glue to protect their eyes from the sun's glow?

02:16:06Normally, we use headrests to, well, rest our heads, right?

02:16:12Not only.

02:16:13It turns out that the headrests can be easily removed from the seats

02:16:17and used to break the car windows in case of emergency.

02:16:21Very few people know the following trick.

02:16:24You probably place your straw in the width, like most of us.

02:16:28But straws have the function of absorbing the dirt from the soles of your shoes

02:16:32before you enter your home.

02:16:34Because it works as it is supposed to,

02:16:36the best way to place a straw is in the length.

02:16:40This way, you will take more steps on the straw before entering your home.

02:16:45And finally, you probably passed the vacuum cleaner in the wrong way,

02:16:49and we can prove it.

02:16:51Most people are content to vacuum the floors and carpets in one direction

02:16:55or to move the front brush back and forth several times,

02:16:58thinking that they have eliminated all the dust.

02:17:01But according to cleaning professionals,

02:17:03the best way to vacuum is in a row.

02:17:06First, you move forward with the brush until you reach the end of the row.

02:17:11Then you sweep the carpet and you go back down along the same row

02:17:15by picking up the dust that was not collected during the first sweeping.

02:17:19Or, if you don't want to disturb the dust,

02:17:21you can be content to sweep the room with a simple glance.

02:17:27You go to the supermarket to buy some small items.

02:17:30The cash register goes much faster

02:17:32than when you have to wait for people to unload their huge cart.

02:17:36But this noisy voice that comes from the machine,

02:17:38which keeps ordering, cuts you off.

02:17:41I have good news for you.

02:17:43You can turn it off.

02:17:44Look closer at the screen.

02:17:45You will probably see a volume button at the bottom.

02:17:48Use your finger to cut this painful voice too weird for good.

02:17:53All machines do not have this hidden option,

02:17:55but it's really worth checking.

02:17:58Normally, the sunflower oil bottles have a weird plug inside.

02:18:03Most people remove the top part and throw it away.

02:18:07But there is actually a better way to use it.

02:18:09Turn the detached part inwards and put it in the bottle cap.

02:18:14This will make an excellent distributor

02:18:16and you will never pour too much oil into your salad.

02:18:20Do you want a picnic with your friends in nature?

02:18:23Forget your classic meal basket.

02:18:25We were all wrong.

02:18:26In fact, it's not a basket, but a bucket.

02:18:29Yes, it is much better to put your picnic stuff in several buckets.

02:18:33This will allow you to evenly distribute the weight between all the guests.

02:18:37When you have found a nice place for your picnic

02:18:40and you have taken out all your stuff,

02:18:42turn the buckets over and use them as a stool.

02:18:46When the meal is over,

02:18:48place the buckets side by side to gain space on the way back.

02:18:53Your toasts are starting to burn,

02:18:54but you don't have a kitchen tweezers on hand?

02:18:57Take two identical forks,

02:18:58put them together and tie them tightly with an elastic.

02:19:02And there you go, your tweezers are ready.

02:19:05Have you ever wondered what this double bottom

02:19:07under the Nutella lid was for?

02:19:10There is only one way to find out.

02:19:12Here is a brand new pot of Nutella.

02:19:15Let's remove the white circle from the cardboard

02:19:17and stick the aluminum foil.

02:19:19Surprise!

02:19:20There should be a small knife to cut the golden aluminum foil.

02:19:24Now you know how to have access to your favorite cutie

02:19:28without hurting your hands.

02:19:30Don't throw the glass pot away once you've finished eating Nutella.

02:19:33It can turn into a candle holder or a lantern.

02:19:36Wash it, paint it on your back,

02:19:39add decorations or letters,

02:19:41glue a nice rope around the edge of the pot,

02:19:44place a candle or a bright candle inside the glass pot.

02:19:48No one will ever guess it was a Nutella jar.

02:19:51It will be our secret.

02:19:53Have you ever wondered why Ritz cookies have teeth on the edge?

02:19:57You can use them as a cheese knife

02:19:59and soft products like cucumbers, ham, etc.

02:20:04Just turn the cracker as if it were a tiny pizza knife and press.

02:20:10Now all the ingredients fit perfectly on your cracker.

02:20:13Enjoy your snack!

02:20:15You also have one of those old baking trays that you never use

02:20:18but still hesitate to throw away.

02:20:20Good news!

02:20:21You can recycle it and make a beautiful frame for a painting or a photo.

02:20:25There are two ways to proceed.

02:20:27Grease the surface of your tray and fix the image at the bottom.

02:20:31In this case, the frame will stick to the front.

02:20:34You can also turn the tray upside down

02:20:36and the edges will hide at the back.

02:20:38Hang this achievement on a wall or place it on a shelf.

02:20:42And do not hesitate to use metal paint to give your frame a suitable color.

02:20:48An old cutting board can make an excellent frame for a mirror.

02:20:53Use double-sided tape to attach a mirror to the surface of your board.

02:20:58Make sure the mirror is well glued.

02:21:01You can now hang it on the wall using the handle of the board

02:21:05or place it on a cupboard and trim it to the wall.

02:21:08Do not forget to wash and dry the cutting board before starting this DIY.

02:21:13We do not want the mirror to smell like fish, do we?

02:21:16Another great power of a cutting board is to keep the wires without knots.

02:21:22Wrap a few light garlands around an old wooden cutting board

02:21:26and put it in your cupboard.

02:21:28During the upcoming holidays, they will still be completely untangled.

02:21:32A hairdryer can make an excellent mini vacuum cleaner

02:21:35when you need to do an emergency cleaning.

02:21:38Cut a plastic bottle and dry it.

02:21:41Put a layer of fabric on the fan of your dryer.

02:21:44Then place the fan on the bottom of the plastic bottle.

02:21:49Attach the bottle to the dryer using a shelf.

02:21:52Turn it on and hop!

02:21:54You are ready to clean up the mess.

02:21:57You can use an old gas cooker grid to hang your interior plants.

02:22:03Attach it to the wall using screws or nails.

02:22:06Now you are ready to hang flower pots, electrical garlands

02:22:10and other decorative elements.

02:22:13If the color of your cooker grid does not match your interior,

02:22:17you can always fix it by using bomb paint.

02:22:21Chinese chopsticks and wooden ice sticks

02:22:24can also turn into a beautiful panel that will decorate your interior.

02:22:30Glue the edges together to create a grid.

02:22:33You can also compose your name or any other word you want with the chopsticks.

02:22:38Then wrap the grid with the light garlands and enjoy your decoration.

02:22:44Do not throw away your frozen aluminum foil.

02:22:47It can help you illuminate the day.

02:22:49Make identical aluminum foil balls and glue them on a glass.

02:22:53A mirror frame or even a book

02:22:56and your life will immediately become more glamorous.

02:22:59If you need to sharpen your used scissors,

02:23:02take aluminum foil and crush it into a ball.

02:23:05Sharpen the edges of the scissors directly on this aluminum foil ball.

02:23:09To speed up your ironing,

02:23:11place pieces of aluminum foil under your ironing board

02:23:14and put the coating back on.

02:23:16The aluminum foil will reflect the heat.

02:23:19The iron to be ironed will be warmer and will work much faster.

02:23:23If you have trouble organizing all your jewelry and you lose from time to time,

02:23:28your favorite articles use a sponge to store them.

02:23:31Just make a few notches and place your little treasures inside these notches.

02:23:36They will hold firmly in the sponge and will not fall or mix.

02:23:42You can also use a sponge to create an organizer for your jewelry.

02:23:48Find a nice box, cut your sponge into pieces of the same size

02:23:51and place them inside the box.

02:23:54Use glue or tape to fix the sponge to the box

02:23:58and enjoy your new jewelry screen.

02:24:01You can easily make chocolate-covered strawberries at home.

02:24:04Take a plastic syringe.

02:24:06Fill it with chocolate paste, remove the leaves from the strawberry

02:24:10and push the syringe into the hole where the leaf usually comes out.

02:24:15Press the chocolate into the fruit and it's ready.

02:24:18You can use the same technique when you prepare eclairs, apples

02:24:22or when you want to leave a chocolate note on crepes

02:24:25to surprise your partner in the morning.

02:24:28Wooden pantyhose with metal clamps can be useful

02:24:31when it comes to hanging curtains or a wallpaper for your photo shoot.

02:24:36If you need to hang curtains but you don't have a special hook,

02:24:40place several pantyhose clamps along the length of the curtains

02:24:43and hang this structure at one end.

02:24:46In general, when we chop onions or fresh garlic,

02:24:49our fingers end up feeling bad for a while.

02:24:52This is no longer a fatality.

02:24:54Just rub a little lemon on your hands before touching the food you smell

02:24:58and they will feel the fresh lemon once you have finished.

02:25:01You can also use a green lemon or a red grapefruit instead of lemon.

02:25:07An old metal tea pot serves as a mini shelf for the little things in your kitchen.

02:25:12Put double-sided tape on the pot and glue it in the upper corner of your closet.

02:25:17You can use shoe bags like a linen bag or to store underwear,

02:25:20apart from other clothes.

02:25:22When you travel from summer to winter or vice versa,

02:25:25you will have to separate your warm clothes from summer clothes.

02:25:28Shoe bags will help you solve this problem.

02:25:32There is nothing better than a slice of grilled bread with butter for breakfast,

02:25:36except for sundaes with melted caramel.

02:25:39If you find it difficult to spread your cold butter on your bread,

02:25:42here's an idea.

02:25:43Use a cheese grater.

02:25:45But on the other hand, the amount of butter you need is reminiscent.

02:25:49This way, the amount of butter needed will soften

02:25:53and it will be easier to spread.

02:25:55But still, the melted caramel!

02:25:58There are different shapes and sizes of dried pasta for a reason.

02:26:02Each type of pasta goes perfectly with a certain type of sauce.

02:26:07Conchiglioni, for example, are perfect with a denser and thicker sauce.

02:26:12Why? Because the sauce enters the shells

02:26:15and makes the dish easier to serve.

02:26:18The stripes on the surface of the pasta hold the sauce.

02:26:24If you ever burn your biscuits,

02:26:26and damn it!

02:26:27You can get them back with your favorite cheese grater.

02:26:30Just grate the burnt parts once the biscuits have been removed from the baking tray.

02:26:34But be careful, wait until they have cooled down.

02:26:38If ever, by removing the burnt part, you dilute them a little,

02:26:41just dip them in melted chocolate.

02:26:44Once the chocolate hardens, you will have perfect biscuits.

02:26:47But let's be honest,

02:26:49does the shape of the biscuit really matter when tasting?

02:26:53I say that, I say nothing.

02:26:57If you make sandwiches with a lot of ingredients,

02:27:00but you don't want the bread to soften,

02:27:02there is a technique to prevent this from happening.

02:27:05Take the tomatoes or cucumbers you want to put in your sandwich

02:27:09and place them between two paper towels for 5 minutes.

02:27:12There you go, you can put them in the bread.

02:27:14Make sure to spread the butter, cheese or sauces like mayo or ketchup first on the bread.

02:27:20This will kind of seal the bread and prevent it from softening.

02:27:25Some people think you have to remove this little white filament

02:27:28that is next to the egg yolk before cooking it.

02:27:31I'm here to tell you that these filaments are called chalazes.

02:27:35And there is no need to get rid of it.

02:27:37They are there to hold the yolk in place, in the center of the egg.

02:27:41Chalazes have no impact on the consistency and taste of your food.

02:27:45It's up to you to see if you want to remove them or not.

02:27:49Have you ever noticed that the bricks of the juice have two tabs on the sides?

02:27:53They are actually handles.

02:27:56The manufacturers designed these bricks in this way

02:27:59so that we can handle them more easily, without crushing them and getting the juice out.

02:28:06No need to be a star chef to know that you can use white sugar or brown sugar in all your recipes.

02:28:12Have you ever wondered what the difference was between the two?

02:28:16It turns out that the only thing that differentiates them is the production mode.

02:28:20We add a small amount of molasses to the chalazes.

02:28:25Molasses is a kind of syrup obtained during the transformation of the sugar cane.

02:28:30This is what is removed during refining.

02:28:32This is how white sugar is produced.

02:28:35But if a certain amount of molasses remains in the final product,

02:28:38we get chalazes, which has a more pronounced taste and a darker color.

02:28:43It's a good thing.

02:28:46You can put a lot of things in your dishwasher.

02:28:48Not just plates and cutlery.

02:28:50For example, you can wash your kitchen gloves in silicone,

02:28:53the pommels of some household appliances, such as those in your oven or your hob.

02:28:58Some sponges and other reusable towels can also be washed in the dishwasher.

02:29:04Speaking of household products for the kitchen, you can do a lot of things with the dishwasher.

02:29:09You can clean your garden furniture, for example,

02:29:12add a little dishwasher liquid to hot water

02:29:14and use this mixture to rub all your garden furniture with a piece of fabric.

02:29:19Rinse them with your watering hose.

02:29:23You can also use your dishwasher to remove the grease stains from your clothes.

02:29:27The stains of pasta sauce, salad seasoning.

02:29:30Hey, we all happen to miss our mouth.

02:29:33Put a little dishwasher liquid on the stain and rinse with water.

02:29:37For light clothes, it is better to use non-colored liquid.

02:29:41For the most tenacious tasks, let the dishwasher act for a few minutes,

02:29:44then put the clothes in the machine as usual.

02:29:47And maybe buy yourself a bottle too.

02:29:49If you still haven't found a technique that suits you to organize your wardrobe

02:29:53and that you are overwhelmed by piles of clothes,

02:29:55there is a simple trick that might work.

02:29:58It's the one-of-a-kind technique.

02:30:03For each garment you buy, you have to get rid of an old garment.

02:30:08You will regularly unclog your wardrobe.

02:30:11To find things more easily, good luck,

02:30:14leave the clothes you use most often at the level of your eyes.

02:30:18You can find them more easily and take them out of the wardrobe quickly.

02:30:21Clothes that you use less often, such as evening clothes, for example,

02:30:25can be stored under or above the level of your eyes.

02:30:30The old boxes can be very useful.

02:30:33If you stick very powerful magnets inside,

02:30:36they can serve as magnet containers.

02:30:39You can store a lot of objects in there, such as kitchen pliers,

02:30:42ice spoons or even cutlery.

02:30:46You can place them on any metallic surface,

02:30:49such as the door of your fridge.

02:30:51They will go very well with the rest of your magnets.

02:30:54At the bottom of your laundry, you have an essential tool

02:30:57to pick up animal hair.

02:30:59It even works better than adhesive rollers.

02:31:01These are wipes for dry clothes.

02:31:04Just one of these wipes and a little elbow grease and you're done.

02:31:07No more hair everywhere.

02:31:09It works on all surfaces,

02:31:11but it's particularly effective on cluttered furniture.

02:31:14If you don't want your doors to squeak

02:31:16every time you enter a room,

02:31:18take a soap and rub it directly on the hinges.

02:31:22It only works for a short time,

02:31:24but it will work until you go to a DIY store.

02:31:28To buy lubricant, for example.

02:31:31You may have noticed that in some elevators

02:31:33there is a star next to this or that floor.

02:31:36And no, it's not made to indicate the floor of my office.

02:31:40It is used to indicate the closest exit.

02:31:43And it is not always on the first floor.

02:31:45It is rather on the floor closest to the street.

02:31:49Have you ever wondered why the stop signs are red?

02:31:53Some time ago, there were no specific colors.

02:31:57Before 1920, there was not even a standard shape.

02:32:01In 1922, someone had the idea to impose the octagon.

02:32:05But at first, these signs were yellow.

02:32:08The red faded too quickly because of the exposure to the sun.

02:32:12Yellow was the best option.

02:32:15It was only 30 years later

02:32:17that the more resistant enamel paint was invented.

02:32:20That's when the color of the stop signs became red.

02:32:24After all, it's the best color

02:32:26if you want something to be easily spotted.

02:32:30Did you know that there is a type of rosette

02:32:32that is taller than a man?

02:32:34According to the Guinness Book of Records,

02:32:36the tallest rosette that has ever existed

02:32:39is located in Vienna.

02:32:41And it measures more than 8.5 meters high.

02:32:44Yes, this rosette dared.

02:32:47Like our digital footprints, which are unique,

02:32:50there are no tigers with the same stripes.

02:32:54That's how people who work with these big felines

02:32:56distinguish them from each other.

02:32:59I bet you didn't know that the Maison Blanche

02:33:02has its own florist in the basement.

02:33:05This business takes care of the ornaments

02:33:07for all the events organized at the Maison Blanche.

02:33:11We know that pizza has become

02:33:13a staple food of American cuisine

02:33:15despite its Italian origins.

02:33:18This dish is so appreciated

02:33:20that Americans buy 350 pieces of pizza every second.

02:33:26Personally, I don't think I eat enough of it.

02:33:29To meet the incredible demand,

02:33:31about 17% of all restaurants in the United States

02:33:34are pizzerias.

02:33:37There is a technique to make lemonade

02:33:40without the lemon seeds in your glass.

02:33:43Cut the fruit in half

02:33:44and try to squeeze it with kitchen tweezers.

02:33:47The pointed part of half the lemon

02:33:49must be placed down.

02:33:51The juice will flow,

02:33:52but the seeds will remain in the lemon.

02:33:54Mmm, lemonade.

02:33:56It's good with pizza.

02:33:59Have you ever wondered

02:34:00what these extra holes are for

02:34:02at the top of your sports shoes?

02:34:04They are designed so that you can attach

02:34:06the shoes in several different ways.

02:34:08It's useful when you want to compensate

02:34:10for things like a bad stroke

02:34:12or even a damaged toe.

02:34:15In addition, you can modify the look of your shoes

02:34:17as you wish.

02:34:20Many people use the cover of their books

02:34:23as a page marker.

02:34:24This is not a problem.

02:34:26Thanks to it, you will not have to frame your pages.

02:34:28But the first objective of a cover

02:34:30is to protect the book

02:34:31against external damage.

02:34:33For example, if you spill fruit juice

02:34:35or if you drop food on your book

02:34:37while you read it.

02:34:40The tic-tac box has this little groove on top

02:34:43so that you can distribute

02:34:44a single tic-tac at a time.

02:34:46Even if, let's be honest,

02:34:47nobody does that.

02:34:49Most of us spill a lot of it at once,

02:34:52and then we put all these tic-tacs in excess.

02:34:57These little rubber tips

02:34:58that you see between the tire tread

02:35:00are there for your safety.

02:35:02They tell you what is the minimum height

02:35:03of your tread.

02:35:05If the tips and edges are equal,

02:35:07it's time for you to go as fast as you can

02:35:09to a tire store.

02:35:11But if the wear witnesses still have a margin

02:35:13compared to the edges,

02:35:14you can ride quietly.

02:35:17What about this black grid

02:35:18on the microwave glass?

02:35:20This is what we call a Faraday cage.

02:35:23And it's there to prevent microwaves

02:35:24from escaping

02:35:25and to turn the whole room into an oven.

02:35:29If microwaves escape,

02:35:30your meal won't be able to cook properly either.

02:35:33Indeed, this cage is not there

02:35:34to prevent you from seeing your meal

02:35:35while it's cooking,

02:35:37but so that the electromagnetic energy

02:35:39stays inside.

02:35:42And why not a screwdriver

02:35:43compatible with a wrench?

02:35:45Grip your screwdriver

02:35:46with the end of your wrench

02:35:48to increase its torsion force.

02:35:50That's why the head of your screwdriver

02:35:51is designed as it is.

02:35:53When you have weird angles,

02:35:54you can use this strategy.

02:35:57You've probably heard this myth before.

02:35:59The blue side of the eraser

02:36:00can erase the pencil.

02:36:02It's false.

02:36:03Its purpose is also to erase the pencil.

02:36:05But in case you write something

02:36:06on a more robust paper.

02:36:09The blue side can also remove these traces

02:36:10that may remain

02:36:11after using the pink eraser.

02:36:15You've already wondered

02:36:16why oranges in supermarkets

02:36:17are most often

02:36:18in red mesh bags.

02:36:20It's a tip

02:36:21so that the fruits have a brighter color,

02:36:22which encourages you to buy them.

02:36:25A bonus tip,

02:36:26don't throw away this mesh bag.

02:36:27Tie it up

02:36:28to have enough to cook your pans

02:36:29and clean your sink,

02:36:31your kitchen appliances

02:36:32and your dishes.

02:36:36You can see that golf balls

02:36:37don't have a perfectly round shape.

02:36:39Their surface is covered

02:36:40by many small sockets,

02:36:42which golf balls

02:36:43haven't always had.

02:36:44At some point,

02:36:45experienced golfers

02:36:46began to notice

02:36:47that with time,

02:36:48the old balls

02:36:49with imperfections,

02:36:50such as notches and bumps,

02:36:52could fly further.

02:36:55These roughnesses

02:36:56create turbulence in the air

02:36:57around the golf ball,

02:36:59which ends up reducing its drag.

02:37:01Manufacturers therefore began

02:37:02to produce balls

02:37:03with sockets

02:37:04so that they can go

02:37:05further and faster.

02:37:09You may have noticed

02:37:10that there were sometimes

02:37:11small cracks

02:37:12on the top of the toothpicks.

02:37:13It's more hygienic

02:37:14because when you break it,

02:37:15you can press the toothpick

02:37:16on it

02:37:17and it won't touch anything else.

02:37:21Another safety device

02:37:23that you will find

02:37:24in your car this time

02:37:25is a strap

02:37:26on your rearview mirror.

02:37:28With it,

02:37:29you can change the position

02:37:30of the mirror

02:37:31so as not to be blind

02:37:32if there is a car behind you

02:37:33driving in the headlights.

02:37:35This small strap

02:37:36helps you control

02:37:37the glow of the lights

02:37:38coming from the rear.

02:37:39This function appeared

02:37:40in the 1930s,

02:37:41but it was only

02:37:42at the beginning of the 1970s

02:37:43that it became

02:37:44a standard equipment

02:37:45for most cars

02:37:46and other trucks.

02:37:49Do you see this little hole

02:37:50on your iPhone

02:37:51just next to the rear-facing

02:37:52camera?

02:37:53It's a microphone.

02:37:55And it's there

02:37:56so that your phone

02:37:57can record the sound

02:37:58when you rotate your camera.

02:38:01Some cables

02:38:02have a thick cylinder

02:38:03towards the end of the cord.

02:38:05This is called

02:38:06a ferrite core.

02:38:08It's a magnetic iron oxide

02:38:10that stops electromagnetic

02:38:11interferences

02:38:12at high frequencies.

02:38:14Do you see, for example,

02:38:15this annoying static noise

02:38:16you get

02:38:17if you bring your phone

02:38:18too close

02:38:19to a speaker?

02:38:20It interferes

02:38:21with your call.

02:38:22This is why

02:38:23cable cords

02:38:24with large cylinders

02:38:25are rather useful

02:38:26because they prevent

02:38:27this kind of thing.

02:38:29Do you know why

02:38:30almost all luggage bags

02:38:31and backpacks

02:38:32have two lightning zippers?

02:38:33It's much more practical

02:38:34and easier

02:38:35to open it this way.

02:38:36But that's not all.

02:38:38You can also lock

02:38:39these two sliding zippers

02:38:40together

02:38:41so that the stuff

02:38:42inside your bags

02:38:43is safe.

02:38:44You know,

02:38:45just like public toilets

02:38:46and shopping centres

02:38:47have these large spaces

02:38:48at the bottom of the door,

02:38:50it's mainly

02:38:51for better air circulation.

02:38:53This type of door

02:38:54also makes it easier

02:38:55to clean the toilets

02:38:56or check

02:38:57if they're occupied

02:38:58when you wait.

02:39:00Apart from that,

02:39:01if you're stuck inside

02:39:02and the lock is broken,

02:39:04there's always a way

02:39:05to escape.

02:39:06You can simply

02:39:07crawl out.

02:39:09Have you ever noticed

02:39:10the plastic tips

02:39:11on the cutters?

02:39:13The blade

02:39:14also has a notch,

02:39:15which means

02:39:16that you can

02:39:17renew it several times,

02:39:18always with sharp edges.

02:39:20You can separate

02:39:21these pieces of blade

02:39:22with these plastic tips.

02:39:23Then,

02:39:24all you have to do

02:39:25is move the sliding part

02:39:26to push this new blade

02:39:27forward.

02:39:28If you've ever taken a moment

02:39:29to look at

02:39:30a Lambda supermarket box,

02:39:32especially its foldable section,

02:39:34you've probably noticed

02:39:35these metal loops

02:39:36that protrude.

02:39:37They're designed

02:39:38to protect the items

02:39:39that you carry

02:39:40in your trunk.

02:39:41You can use them

02:39:42to hang bags

02:39:43containing soft items,

02:39:45like bread

02:39:46that you don't want

02:39:47to accidentally crush

02:39:48with heavier products

02:39:49or things that are

02:39:50easier to break,

02:39:51like eggs.

02:39:53Many coffee cups

02:39:54have curved notches

02:39:55on the bottom.

02:39:56When you wash your cups,

02:39:57place them against

02:39:58the drawer

02:39:59of your dishwasher.

02:40:00This way,

02:40:01the water won't

02:40:02accumulate inside

02:40:03and your favorite cup

02:40:04will be completely dry

02:40:05when you take it out of here.

02:40:09If you're a fan

02:40:10of McFlurry,

02:40:11you've probably noticed

02:40:12that there was

02:40:13a square hole

02:40:14in the handle

02:40:15of their spoon.

02:40:16It's there

02:40:17so you can attach it

02:40:18to this special machine

02:40:19that mixes

02:40:20the ice cream

02:40:21with your favorite toppings.

02:40:22The machine

02:40:23has a bar

02:40:24that slides

02:40:25into this square-shaped

02:40:26spoon

02:40:27and carefully

02:40:28stirs it.

02:40:29And they give you

02:40:30this spoon

02:40:31to minimize

02:40:32the damage

02:40:33during the process.

02:40:34Pretty cool,

02:40:35isn't it?

02:40:36An ordinary can

02:40:37usually has

02:40:38a nozzle on the side.

02:40:39Some of you

02:40:40may see

02:40:41a random design choice,

02:40:42but this nozzle

02:40:43fulfills several objectives.

02:40:44One of them

02:40:45is to inflate

02:40:46if there's

02:40:47an accumulation of gas.

02:40:48This happens

02:40:49when your milk

02:40:50has turned.

02:40:51This way,

02:40:52you don't even need

02:40:53to taste it

02:40:54to check.

02:40:55In addition,

02:40:56the nozzle is there

02:40:57so that the bottle

02:40:58doesn't explode

02:40:59if you drop it

02:41:00accidentally.

02:41:01It allows

02:41:02an expansion space

02:41:03that takes in

02:41:04the sudden pressure

02:41:05that happens

02:41:06when you drop it.

02:41:07This is

02:41:08the dental floss.

02:41:09It's important

02:41:10to take care

02:41:11of your teeth,

02:41:12and it's easy

02:41:13to guess

02:41:14how to use it.

02:41:15But it's also

02:41:16great in the kitchen

02:41:17because it's

02:41:18a very precise

02:41:19cake cutter.

02:41:20Much more effective

02:41:21than an ordinary knife.

02:41:22Most kitchen scissors

02:41:23have a key opening

02:41:24right here

02:41:25in the middle

02:41:26where the blades

02:41:27and handles

02:41:28meet.

02:41:29It's something

02:41:30you can use

02:41:31to remove

02:41:32difficult herbs

02:41:33like thyme

02:41:34or rosemary.

02:41:35In addition,

02:41:36you don't need

02:41:37to remove the leaves

02:41:38by hand.

02:41:39But you can

02:41:40remove them

02:41:41in one move.

02:41:42A large part

02:41:43of the yoghurt

02:41:44or flan skins

02:41:45are provided

02:41:46with an aluminum

02:41:47paper lid.

02:41:48And in most cases,

02:41:49you can use

02:41:50this lid

02:41:51as a disposable spoon.

02:41:52You just need

02:41:53to take it off

02:41:54and after a few

02:41:55simple folds,

02:41:56you'll have

02:41:57a small,

02:41:58perfect spoon

02:41:59for your 4 hours.

02:42:00More than 40 billion

02:42:01Oreo biscuits

02:42:02are made

02:42:03every year.

02:42:04They are

02:42:05the most popular

02:42:06industrial biscuits

02:42:07in the world.

02:42:08The geometric pattern

02:42:09on these biscuits

02:42:10is the Nabisco logo,

02:42:11a symbol

02:42:12of European quality

02:42:13that includes

02:42:14the word

02:42:15Oreo.

02:42:16It was in 1952

02:42:17that William Turnier

02:42:18created the chocolate biscuit

02:42:19design

02:42:20we know today.

02:42:21Wireless headphones

02:42:22could soon

02:42:23belong to the past

02:42:24because of

02:42:25wireless technology.

02:42:26But if you still have some,

02:42:27you may have noticed

02:42:28the rings

02:42:29on the headphones.

02:42:30One ring

02:42:31symbolizes a mono sound,

02:42:32two rings

02:42:33symbolize a stereo sound

02:42:34and three rings

02:42:35mean you have

02:42:36a stereo sound

02:42:37and an integrated microphone.

02:42:38The iconic rings

02:42:39orange,

02:42:40red,

02:42:41purple,

02:42:42yellow

02:42:43and lime green

02:42:44of the Fruit Loops

02:42:45cereals

02:42:46hide a secret.

02:42:47They don't represent

02:42:48different fruit flavors.

02:42:49All these rings

02:42:50have the same

02:42:51fruit flavors

02:42:52mixed together.

02:42:53The colors are

02:42:54just there

02:42:55to make it pretty.

02:42:56The E

02:42:57on the Dell logo

02:42:58is tilted

02:42:59because the founder

02:43:00Michael Dell

02:43:01wanted his technology

02:43:02to be more

02:43:03advanced.

02:43:04The E

02:43:05on the Dell logo

02:43:06is tilted

02:43:07because the founder

02:43:08Michael Dell

02:43:09wanted his technology

02:43:10to be more advanced.

02:43:11The E

02:43:12on the Dell logo

02:43:13is tilted

02:43:14because the founder

02:43:15Michael Dell

02:43:16wanted his technology

02:43:17to be more advanced.

02:43:18The E

02:43:19on the Dell logo

02:43:20is tilted

02:43:21because the founder

02:43:22Michael Dell

02:43:23wanted his technology

02:43:24to be more advanced.

02:43:25The E

02:43:26on the Dell logo

02:43:27is tilted

02:43:28because the founder

02:43:29Michael Dell

02:43:30wanted his technology

02:43:31to be more advanced.

02:43:32The E

02:43:33on the Dell logo

02:43:34is tilted

02:43:35because the founder

02:43:36Michael Dell

02:43:37wanted his technology

02:43:38to be more advanced.

02:43:39The E

02:43:40on the Dell logo

02:43:41is tilted

02:43:42because the founder

02:43:43Michael Dell

02:43:44wanted his technology

02:43:45to be more advanced.

02:43:46The E

02:43:47on the Dell logo

02:43:48is tilted

02:43:49because the founder

02:43:50Michael Dell

02:43:51wanted his technology

02:43:52to be more advanced.

02:43:53The E

02:43:54on the Dell logo

02:43:55is tilted

02:43:56because the founder

02:43:57Michael Dell

02:43:58wanted his technology

02:43:59to be more advanced.

02:44:00The E

02:44:01on the Dell logo

02:44:02is tilted

02:44:03because the founder

02:44:04Michael Dell

02:44:05wanted his technology

02:44:06to be more advanced.

02:44:07The E

02:44:08on the Dell logo

02:44:09is tilted

02:44:10because the founder

02:44:11Michael Dell

02:44:12wanted his technology

02:44:13to be more advanced.

02:44:14The E

02:44:15on the Dell logo

02:44:16is tilted

02:44:17because the founder

02:44:18Michael Dell

02:44:19wanted his technology

02:44:20to be more advanced.

02:44:21The E

02:44:22on the Dell logo

02:44:23is tilted

02:44:24because the founder

02:44:25Michael Dell

02:44:26wanted his technology

02:44:27to be more advanced.

02:44:28The E

02:44:29on the Dell logo

02:44:30is tilted

02:44:31because the founder

02:44:32Michael Dell

02:44:33wanted his technology

02:44:34to be more advanced.

02:44:35The E

02:44:36on the Dell logo

02:44:37is tilted

02:44:38because the founder

02:44:39Michael Dell

02:44:40wanted his technology

02:44:41to be more advanced.

02:44:42The E

02:44:43on the Dell logo

02:44:44is tilted

02:44:45because the founder

02:44:46Michael Dell

02:44:47wanted his technology

02:44:48to be more advanced.

02:44:49The E

02:44:50on the Dell logo

02:44:51is tilted

02:44:52because the founder

02:44:53Michael Dell

02:44:54wanted his technology

02:44:55to be more advanced.

02:44:56The E

02:44:57on the Dell logo

02:44:58is tilted

02:44:59because the founder

02:45:00Michael Dell

02:45:01wanted his technology

02:45:02to be more advanced.

02:45:03The E

02:45:04on the Dell logo

02:45:05is tilted

02:45:06because the founder

02:45:07Michael Dell

02:45:08wanted his technology

02:45:09to be more advanced.

02:45:10The E

02:45:11on the Dell logo

02:45:12is tilted

02:45:13because the founder

02:45:14Michael Dell

02:45:15wanted his technology

02:45:16to be more advanced.

02:45:17The E

02:45:18on the Dell logo

02:45:19is tilted

02:45:20because the founder

02:45:21Michael Dell

02:45:22wanted his technology

02:45:23to be more advanced.

02:45:24The E

02:45:25on the Dell logo

02:45:26is tilted

02:45:27because the founder

02:45:28Michael Dell

02:45:29wanted his technology

02:45:30to be more advanced.

02:45:31The E

02:45:32on the Dell logo

02:45:33is tilted

02:45:34because the founder

02:45:35Michael Dell

02:45:36wanted his technology

02:45:37to be more advanced.

02:45:38The E

02:45:39on the Dell logo

02:45:40is tilted

02:45:41because the founder

02:45:42Michael Dell

02:45:43wanted his technology

02:45:44to be more advanced.

02:45:45The E

02:45:46on the Dell logo

02:45:47is tilted

02:45:48because the founder

02:45:49Michael Dell

02:45:50wanted his technology

02:45:51to be more advanced.

02:45:52The E

02:45:53on the Dell logo

02:45:54is tilted

02:45:55because the founder

02:45:56Michael Dell

02:45:57wanted his technology

02:45:58to be more advanced.

02:45:59The E

02:46:00on the Dell logo

02:46:01is tilted

02:46:02because the founder

02:46:03Michael Dell

02:46:04wanted his technology

02:46:05to be more advanced.

02:46:06The E

02:46:07on the Dell logo

02:46:08is tilted

02:46:09because the founder

02:46:10Michael Dell

02:46:11wanted his technology

02:46:12to be more advanced.

02:46:13The E

02:46:14on the Dell logo

02:46:15is tilted

02:46:16because the founder

02:46:17Michael Dell

02:46:18wanted his technology

02:46:19to be more advanced.

02:46:20The E

02:46:21on the Dell logo

02:46:22is tilted

02:46:23because the founder

02:46:24Michael Dell

02:46:25wanted his technology

02:46:26to be more advanced.

02:46:27The E

02:46:28on the Dell logo

02:46:29is tilted

02:46:30because the founder

02:46:31Michael Dell

02:46:32wanted his technology

02:46:33to be more advanced.

02:46:34The E

02:46:35on the Dell logo

02:46:36is tilted

02:46:37because the founder

02:46:38Michael Dell

02:46:39wanted his technology

02:46:40to be more advanced.

02:46:41The E

02:46:42on the Dell logo

02:46:43is tilted

02:46:44because the founder

02:46:45Michael Dell

02:46:46wanted his technology

02:46:47to be more advanced.

02:46:48The E

02:46:49on the Dell logo

02:46:50is tilted

02:46:51because the founder

02:46:52Michael Dell

02:46:53wanted his technology

02:46:54to be more advanced.

02:46:55The E

02:46:56on the Dell logo

02:46:57is tilted

02:46:58because the founder

02:46:59Michael Dell

02:47:00wanted his technology

02:47:01to be more advanced.

02:47:02The E

02:47:03on the Dell logo

02:47:04is tilted

02:47:05because the founder

02:47:06Michael Dell

02:47:07wanted his technology

02:47:08to be more advanced.

02:47:09The E

02:47:10on the Dell logo

02:47:11is tilted

02:47:12because the founder

02:47:13Michael Dell

02:47:14wanted his technology

02:47:15to be more advanced.

02:47:16The E

02:47:17on the Dell logo

02:47:18is tilted

02:47:19because the founder

02:47:20Michael Dell

02:47:21wanted his technology

02:47:22to be more advanced.

02:47:23The E

02:47:24on the Dell logo

02:47:25is tilted

02:47:26because the founder

02:47:27Michael Dell

02:47:28wanted his technology

02:47:29to be more advanced.

02:47:30The E

02:47:31on the Dell logo

02:47:32is tilted

02:47:33because the founder

02:47:34Michael Dell

02:47:35wanted his technology

02:47:36to be more advanced.

02:47:37The E

02:47:38on the Dell logo

02:47:39is tilted

02:47:40because the founder

02:47:41Michael Dell

02:47:42wanted his technology

02:47:43to be more advanced.

02:47:44The E

02:47:45on the Dell logo

02:47:46is tilted

02:47:47because the founder

02:47:48Michael Dell

02:47:49wanted his technology

02:47:50to be more advanced.

02:47:51The E

02:47:52on the Dell logo

02:47:53is tilted

02:47:54because the founder

02:47:55Michael Dell

02:47:56wanted his technology

02:47:57to be more advanced.

02:47:58The E

02:47:59on the Dell logo

02:48:00is tilted

02:48:01because the founder

02:48:02Michael Dell

02:48:03wanted his technology

02:48:04to be more advanced.

02:48:05The E

02:48:06on the Dell logo

02:48:07is tilted

02:48:08because the founder

02:48:09Michael Dell

02:48:10wanted his technology

02:48:11to be more advanced.

02:48:12The E

02:48:13on the Dell logo

02:48:14is tilted

02:48:15because the founder

02:48:16Michael Dell

02:48:17wanted his technology

02:48:18to be more advanced.

02:48:19The E

02:48:20on the Dell logo

02:48:21is tilted

02:48:22because the founder

02:48:23Michael Dell

02:48:24wanted his technology

02:48:25to be more advanced.

02:48:26The E

02:48:27on the Dell logo

02:48:28is tilted

02:48:29because the founder

02:48:30Michael Dell

02:48:31wanted his technology

02:48:32to be more advanced.

02:48:33The E

02:48:34on the Dell logo

02:48:35is tilted

02:48:36because the founder

02:48:37Michael Dell

02:48:38wanted his technology

02:48:39to be more advanced.

02:48:40The E

02:48:41on the Dell logo

02:48:42is tilted

02:48:43because the founder

02:48:44Michael Dell

02:48:45wanted his technology

02:48:46to be more advanced.

02:48:47The E

02:48:48on the Dell logo

02:48:49is tilted

02:48:50because the founder

02:48:51Michael Dell

02:48:52wanted his technology

02:48:53to be more advanced.

02:48:54The E

02:48:55on the Dell logo

02:48:56is tilted

02:48:57because the founder

02:48:58Michael Dell

02:48:59wanted his technology

02:49:00to be more advanced.

02:49:01The E

02:49:02on the Dell logo

02:49:03is tilted

02:49:04because the founder

02:49:05Michael Dell

02:49:06wanted his technology

02:49:07to be more advanced.

02:49:08The E

02:49:09on the Dell logo

02:49:10is tilted

02:49:11because the founder

02:49:12Michael Dell

02:49:13wanted his technology

02:49:14to be more advanced.

02:49:15The E

02:49:16on the Dell logo

02:49:17is tilted

02:49:18because the founder

02:49:19Michael Dell

02:49:20wanted his technology

02:49:21to be more advanced.

02:49:22The E

02:49:23on the Dell logo

02:49:24is tilted

02:49:25because the founder

02:49:26Michael Dell

02:49:27wanted his technology

02:49:28to be more advanced.

02:49:29The E

02:49:30on the Dell logo

02:49:31is tilted

02:49:32because the founder

02:49:33Michael Dell

02:49:34wanted his technology

02:49:35to be more advanced.

02:49:36The E

02:49:37on the Dell logo

02:49:38is tilted

02:49:39because the founder

02:49:40Michael Dell

02:49:41wanted his technology

02:49:42to be more advanced.

02:49:43The E

02:49:44on the Dell logo

02:49:45is tilted

02:49:46because the founder

02:49:47Michael Dell

02:49:48wanted his technology

02:49:49to be more advanced.

02:49:50The E

02:49:51on the Dell logo

02:49:52is tilted

02:49:53because the founder

02:49:54Michael Dell

02:49:55wanted his technology

02:49:56to be more advanced.

02:49:57The E

02:49:58on the Dell logo

02:49:59is tilted

02:50:00because the founder

02:50:01Michael Dell

02:50:02wanted his technology

02:50:03to be more advanced.

02:50:04The E

02:50:05on the Dell logo

02:50:06is tilted

02:50:07because the founder

02:50:08Michael Dell

02:50:09wanted his technology

02:50:10to be more advanced.

02:50:11The E

02:50:12on the Dell logo

02:50:13is tilted

02:50:14because the founder

02:50:15Michael Dell

02:50:16wanted his technology

02:50:17to be more advanced.

02:50:18The E

02:50:19on the Dell logo

02:50:20is tilted

02:50:21because the founder

02:50:22Michael Dell

02:50:23wanted his technology

02:50:24to be more advanced.

02:50:25The E

02:50:26on the Dell logo

02:50:27is tilted

02:50:28because the founder

02:50:29Michael Dell

02:50:30wanted his technology

02:50:31to be more advanced.

02:50:32The E

02:50:33on the Dell logo

02:50:34is tilted

02:50:35because the founder

02:50:36Michael Dell

02:50:37wanted his technology

02:50:38to be more advanced.

02:50:39The E

02:50:40on the Dell logo

02:50:41is tilted

02:50:42because the founder

02:50:43Michael Dell

02:50:44wanted his technology

02:50:45to be more advanced.

02:50:46these are lips,

02:50:47a whirlwind,

02:50:48a fish,

02:50:49clothes,

02:50:50a bee,

02:50:51particles,

02:50:52a bag,

02:50:53a transformation,

02:50:54waves,

02:50:55a DNA extract,

02:50:56palm trees,

02:50:57a heart,

02:50:58and the recycling symbol.

02:50:59These are to represent

02:51:00the company's values

02:51:01and products.

02:51:03Hair pins

02:51:04are designed

02:51:05to hold the zig-zag part

02:51:06in place

02:51:07on your scalp

02:51:08and not the flat part.

02:51:10This creates a better grip

02:51:11on your hair and skin

02:51:12and so the pin

02:51:13stays in place

02:51:14for longer.

02:51:15Mesdames et messieurs, veuillez accueillir notre invité spécial d'aujourd'hui, le sac à ordures.

02:51:21Des inventeurs canadiens ont créé cet article ménager irremplaçable, il y a environ 70 ans.

02:51:26Aujourd'hui, il existe dans une grande variété de formes, de couleurs et de tailles.

02:51:31Et si tu penses qu'il ne peut servir qu'à une seule chose, j'ai une grande surprise pour toi.

02:51:35Il peut également t'empêcher de recevoir des communications indésirées.

02:51:38Mais nous y reviendrons plus tard.

02:51:40Et si je te disais que tu as mal utilisé tes sacs poubelles toute ta vie,

02:51:44si tu les regardes de plus près, tu remarqueras probablement que la couture est à l'envers.

02:51:48Et ce n'est pas par accident.

02:51:50En fait, tu n'es pas censé secouer le sac pour l'ouvrir.

02:51:53Il faut placer le sac sur une poubelle, comme un chapeau,

02:51:56puis pousser le milieu du sac vers la poubelle.

02:51:58Ne t'inquiète pas, tu n'es pas la seule personne qui ne le savait pas.

02:52:01Cette astuce époustouflante est devenue virale en ligne et a été vue des millions de fois.

02:52:06Imagine que tu dois teindre tes cheveux, peindre des murs ou mouler un mug en argile sur le champ.

02:52:11Mais tu n'as pas de combinaison de protections sous la main.

02:52:14Eh bien, voici une bonne nouvelle.

02:52:16Tu peux en fabriquer une à partir d'un sac en plastique en moins d'une minute.

02:52:20Il suffit de trouver un sac assez large pour s'adapter à ton torse.

02:52:23Découpe un trou au fond du sac pour ta tête et deux trous pour les bras sur les côtés.

02:52:27Voilà! N'hésite pas à fabriquer un chapeau avec un autre sac en plastique pour protéger tes cheveux.

02:52:33Une fois le travail terminé, tu peux laver ce costume fait main et le réutiliser.

02:52:37Notre prochaine astuce est pour ceux qui n'aiment pas gaspiller d'argent.

02:52:41Tu peux utiliser un vrai sac en plastique au lieu d'un imperméable, qui ressemble à un sac en plastique de toute façon.

02:52:46Il suffit de faire une découpe ronde pour ton visage et tu es prêt à partir.

02:52:50Tu peux le réutiliser autant de fois que tu veux.

02:52:53Tu peux utiliser une bouteille en plastique pour créer un distributeur de sacs d'ordure.

02:52:57Prends une grande bouteille. Il peut s'agir d'une bouteille de soda ou de gel douche.

02:53:02Ce qui compte, c'est sa forme. Elle doit être droite pour que tu puisses facilement y ranger des sacs.

02:53:06Lève la bouteille, sèche-la et coupe le goulot et le fond.

02:53:10Retourne-la à l'envers. Voilà, ton distributeur de sacs est prêt.

02:53:14Tu peux utiliser ton imagination pour peindre et décorer ton projet de bricolage avec des autocollants et des lettres à ton goût.

02:53:21Lorsque le motif est prêt, fixe-le à l'arrière de la bouteille et colle ce support au mur de ta cuisine ou à l'une des portes de l'armoire.

02:53:28Imagine que tu planifies depuis longtemps un week-end de randonnée de rêve.

02:53:32Mais lorsque tu arrives sur place, il se met à pleuvoir.

02:53:35Ne te précipite pas pour rentrer chez toi.

02:53:37Les sacs en plastique te seront très utiles si tu dois poser tes vêtements ou ton équipement sur l'herbe mouillée.

02:53:42Tu peux également fabriquer une housse de sac de couchage d'urgence en utilisant un grand sac poubelle.

02:53:47Après la pluie, il servira de jolis matelas à poser sous ton sac de couchage,

02:53:51pour le protéger de l'humidité et fournir une couche supplémentaire en vue d'une sieste confortable.

02:53:56Il suffit de remplir le sac avec des feuilles et de la paille qui traînent sur le sol et le tour est joué.

02:54:02Un grand sac poubelle peut être ton meilleur ami quand tu fais du camping sauvage avec des potes.

02:54:06Tu peux le transformer en une douche artisanale temporaire, des toilettes ou même un vestiaire fait à partir d'un seul sac.

02:54:13Il suffit de l'accrocher à un arbre et personne ne pourra te voir.

02:54:17Si tu veux aller te balader sous la pluie avec ta paire de chaussures préférées qui se mouillent facilement,

02:54:21voici une astuce facile pour garder tes chaussettes au sec.

02:54:24Mets des sacs en plastique sur tes chaussettes,

02:54:26rentre les bords des sacs à l'intérieur de celle-ci ou de ton pantalon,

02:54:30puis enfile tes chaussures.

02:54:32Il y a cependant un inconvénient évident.

02:54:34Les pieds peuvent glisser à l'intérieur des chaussures, alors fais très attention.

02:54:38Ces chaussettes en plastique sont également très pratiques

02:54:41quand tu essayes d'enfiler des jeans serrés dans lesquels tes pieds restent généralement coincés.

02:54:45Ton sac s'est-il déjà déchiré au pire moment ?

02:54:48Un sac en plastique avec des poignées peut devenir un sac à dos d'urgence.

02:54:51Il suffit de placer tes affaires à l'intérieur du sac,

02:54:54de passer tes mains dans les poignées et te voilà prêt à partir.

02:54:58Un sac poubelle est également un bon matériau pour les couvertures de livres.

02:55:01Tu peux réutiliser des sacs multicolores pour créer un motif unique pour tes livres préférés.

02:55:06Tu déménages dans une nouvelle maison et tu emballes toutes tes affaires.

02:55:09Soudain, tu es à court de carton.

02:55:11Cela te semble familier ? Pas de problème !

02:55:14Prends un paquet de grands sacs poubelles et emballe les affaires restantes.

02:55:17Contrairement aux boîtes, cet emballage protégera tes biens de la pluie ou de la neige.

02:55:21Les sacs poubelles sont particulièrement idéaux pour emballer les couvertures,

02:55:25les oreillers et les jouets en peluche.

02:55:27Si tu as besoin de faire un emballage sous vide pour tes vêtements ou tes jouets en peluche,

02:55:31il suffit de mettre les affaires dans un sac poubelle,

02:55:33de placer le tube de ton aspirateur à l'intérieur du sac,

02:55:36puis de le mettre en marche.

02:55:38L'aspirateur éliminera tout l'air excédentaire du sac

02:55:41et tu gagneras de la place dans ta valise ou ton grenier.

02:55:44Quelqu'un de vraiment spécial t'a invité à la maison pour préparer un dîner romantique.

02:55:48Enfin, tu veux montrer tous tes extraordinaires talents de cuisinier.

02:55:52Mais cette personne n'a pas de tablier et tu ne veux pas abîmer ta jolie tenue.

02:55:56Pas de panique, fabrique un tablier de secours en utilisant un grand sac poubelle.

02:56:00Cela surprendra encore plus cette personne si spéciale.

02:56:03En parlant de tenues élégantes, connais-tu la robe sac poubelle ?

02:56:07De temps en temps, des célébrités et des marques de mode célèbres

02:56:10choquent le public avec des tenues ressemblant à des sacs poubelles.

02:56:13Certains d'entre eux fabriquent même des tenues en utilisant des sacs poubelles comme tissu.

02:56:17C'est une option populaire pour les jeunes artistes

02:56:19qui ne peuvent pas se permettre d'acheter et d'utiliser des tissus coûteux.

02:56:22Les sacs poubelles sont très flexibles,

02:56:24ce qui en fait un matériau utile afin de créer des patrons pour de futures tenues.

02:56:28Lorsqu'il s'agit de sacs poubelles, les possibilités de système des sont presque infinies.

02:56:32Les gens utilisent des sacs pour fabriquer des abat-jours,

02:56:35des housses pour vêtements, des petits sacs à cosmétiques,

02:56:38des organisateurs de maquillage, etc.

02:56:40Certains en font même des paniers, des sacs et des tapis de sol.

02:56:43Il est assez facile de fabriquer un tapis fait maison.

02:56:46Il faut couper plusieurs sacs en bandes égales et tisser une longue tresse à partir de ces bandes.

02:56:51Tors ensuite cette tresse en spirale et attache ou colle chaque couche ensemble.

02:56:55Pour éviter que toute cette construction ne se casse,

02:56:57tu peux coudre ton tapis à la machine à coudre, du milieu vers le bord,

02:57:01comme si tu dessinais une étoile.

02:57:03Cette tresse en plastique peut également servir de lacet de secours,

02:57:06de corde ou de ruban fait main pour décorer des cadeaux et des fleurs.

02:57:10La réalisation de films est un autre domaine où les sacs poubelles peuvent être de véritables stars.

02:57:15Si tu filmes en intérieur et que la lumière du soleil est trop vive,

02:57:18tu peux mettre des sacs poubelles blancs sur toutes les fenêtres pour diffuser la lumière

02:57:22ou pour régler la balance des blancs.

02:57:24Les sacs poubelles noirs résistants à la lumière

02:57:26peuvent te servir de rideau d'ombrage pour éliminer complètement la lumière du soleil dans la pièce.

02:57:30N'hésite pas à utiliser un sac blanc pour créer une boule de lumière diffuse.

02:57:34Gonfle le sac comme un ballon et place-le à côté d'une lampe.

02:57:37Mais veille à utiliser une lampe LED pour qu'il ne chauffe pas trop.

02:57:40Tout le monde sait que toucher un sac en plastique avec un fer à repasser chaud

02:57:44est une mauvaise idée car il va fondre.

02:57:46Mais cela nous permet de créer des formes uniques à partir de ce matériau coloré et abordable.

02:57:51Tu veux faire un vase design unique en son genre ?

02:57:53Prends un bol et recouvre-le de papier en le serrant bien.

02:57:56Enroule ensuite les bandes de sac plastique correspondantes autour du bol.

02:57:59Place ensuite une autre couche de papier sur le dessus

02:58:02et repasse doucement sur toute la surface du bol.

02:58:05Voilà ! Le plastique a fondu et tu as un nouveau vase élégant et écologique.

02:58:09Les sacs poubelles peuvent produire des effets sonores très cools.

02:58:12Si tu vis dans un désert où il ne pleut jamais

02:58:14et que tu as besoin de recréer ce son relaxant,

02:58:16utilise un sac en plastique.

02:58:18Il est toujours préférable d'assumer les choses comme un adulte.

02:58:21Mais si cela ne fonctionne pas pour toi,

02:58:23voici une solution rapide.

02:58:25La prochaine fois qu'une personne barbante te téléphone,

02:58:28ne te donne pas la peine de chercher des excuses pour ne pas lui parler maintenant.

02:58:31Prends simplement un sac poubelle et frotte-le contre ton portable en criant

02:58:35« Allô ? Allô ? J'entends rien. Allô ? »

02:58:38Voici le moment des confidences.

02:58:40As-tu déjà utilisé cette astuce ?

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