20 aperçus fascinants sur des objets courants

Sympa

Découvrez 20 informations fascinantes sur les objets du quotidien ! Rejoignez-nous pour découvrir des faits surprenants et des détails intéressants qui changeront votre façon de voir le monde qui vous entoure.  #FaitsFascinants #ObjetsDuQuotidien #Curiosité  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

00:00:00Have you ever noticed that toilet paper is usually white, but this color has not always been the most common?

00:00:07In fact, colored toilet paper made their appearance on shelves in the 1950s.

00:00:13People bought pink, blue, yellow, green and even black paper, because these colors simply harmonized with their interior.

00:00:22But little by little, many doctors began to associate the dyeing of colored toilet paper with increased health risks.

00:00:29In addition, the dyeing did not allow the paper to decompose so quickly after having drawn the water, which increased the risk of clogging the septic tanks.

00:00:38This ended up making the manufacturing and distribution costs too high compared to the basic white paper, and finally, the demand began to collapse.

00:00:47And now, let's take a closer look at these fanciful patterns.

00:00:51Most people probably don't care about decorations when it comes to their toilet paper.

00:00:56And yet, these patterns still exist. But why? Well, there are several points of view on this subject.

00:01:03Some say it's just a marketing tool.

00:01:06Manufacturers use these flowery patterns to make their products more aesthetic.

00:01:10And also so that customers associate their brand with elegance and a luxurious lifestyle.

00:01:15There is a more practical explanation.

00:01:17These patterns inflate the paper, which makes it more absorbent.

00:01:21Speaking of comfort, have you ever wondered why the hygienic paper of public toilets was so rough?

00:01:27The most obvious answer is that high-quality toilet paper is more expensive.

00:01:32In addition, companies prefer to buy giant rolls of bad quality paper because it allows them to change them less often.

00:01:39This choice also avoids theft. And yes, people really put paper in public toilets.

00:01:45Have you ever noticed that public toilet switches are usually placed outside?

00:01:51Well, it's not by chance.

00:01:53Manufacturers do it for safety reasons.

00:01:56Because, as we all know, electricity and water form a dangerous combination.

00:02:01And switches are connected to the current, so electricity literally crosses them.

00:02:07Of course, switches installed by professionals will be equipped with a number of additional safety measures.

00:02:13But most manufacturers prefer not to take the slightest risk.

00:02:17In the United Kingdom, safety rules for switches are much stricter than in the United States, for example.

00:02:23This is why, if you live in London, you will probably find switches outside the public toilets more often.

00:02:30But don't worry, most public toilets have independent electric circuits anyway.

00:02:36This offers additional safety in the event of an accidental electric shock.

00:02:40When a change in the electric current occurs, they are supposed to disconnect automatically.

00:02:46The possibilities of lighting seem endless in this low world.

00:02:50But why are the traffic lights red, orange and green?

00:02:54It turns out that there is a logical explanation for this.

00:02:58Before the traffic lights for cars, there were traffic lights for trains.

00:03:03And the first railway operators used white to signify freeway, red to signify stop, and green to signify caution.

00:03:13But much later, we realized that white was not such a good idea.

00:03:18Because a bright white light could easily be confused with a simple star during the night.

00:03:24Railway companies therefore changed the color white to green to signify freeway, and yellow to signify caution.

00:03:30Because these colors are easily distinguished from the others.

00:03:33And finally, this tradition spread to the traffic lights for cars and became the norm.

00:03:39As for the color red, it has the longest wavelength.

00:03:43This means that drivers can see it at a greater distance than other colors.

00:03:48And yellow was chosen as a sign of caution because it has a slightly shorter wavelength than red, but still longer than green.

00:03:56What is the most dusty room in your house?

00:03:59Generally, the answer is the bedroom.

00:04:02But why?

00:04:04Rooms tend to generate dust from dead skin cells,

00:04:08acarians and textile fibers from your sheets, carpets and curtains.

00:04:12If you have a pet, its fur and skin cells add a large amount of dirt to this dusty party.

00:04:19Fortunately, there are simple ways to eliminate dust from your room.

00:04:24In particular, make your bed every day and regularly clean the room with a vacuum cleaner or a mop.

00:04:31You can consider getting rid of carpets, furniture and useless bookshelves, which tend to accumulate dust.

00:04:38Pay special attention to quality when you buy curtains or bed sheets.

00:04:43The looser the fabric, the more dirt it accumulates.

00:04:47And finally, you can forbid your pet from entering your room.

00:04:51But let's be honest, you will never do that.

00:04:55Air purifiers, air conditioners and modern ceiling fans can help make the place where you sleep more dusty.

00:05:02But make sure to clean them regularly.

00:05:05Otherwise, if your filter is dirty, clogged by hair or any other pollutant in the air,

00:05:10it will not be able to properly collect the new dust,

00:05:13and it will inevitably end up on the surfaces of your room.

00:05:17Speaking of dust, did you know that you can clean the fringes of your broom with a dust brush?

00:05:23This zigzag does not only fulfill an aesthetic function.

00:05:26You can use it as a comb for your hair.

00:05:29Have you ever had these marks behind your ears after wearing glasses?

00:05:33Sometimes they even take weeks to disappear.

00:05:36Well, that's a sign that the branches of your glasses are not properly adjusted for your head.

00:05:41In other words, they are too tight.

00:05:44This can cause skin irritation and even headaches.

00:05:48If they are bent towards the area behind your ears, they can press on the fragile part of the skull.

00:05:54So keep in mind that the branches must not only have the right size, but also be properly adjusted.

00:06:00A professional optician can easily solve this problem,

00:06:03and it is much safer than trying to do it yourself.

00:06:07Box graters can also be used in a horizontal position.

00:06:11In many cases, it is much more convenient to grate a carrot or a large block of cheese in this way.

00:06:17If you want to grate a soft product like goat or mozzarella cheese,

00:06:21you can put them in the freezer for about 30 minutes before grating them.

00:06:25There is also a way to facilitate cleaning and prevent the cheese from sticking.

00:06:30Spread a small amount of oil on the grater before using it.

00:06:34And now, let's take a look at the least plebiscite aspects of this grater.

00:06:38Have you ever used it?

00:06:40This side is actually designed to cut.

00:06:43It is quite practical if you want to make thin slices of vegetables for your salad or pasta,

00:06:47or to decorate crisps.

00:06:49And these small perforated holes are designed to zest or grate very finely.

00:06:54These grates are very useful for the next tip, which is not about food.

00:06:58If you have a rather tight budget, you can buy this super cheap laundry soap,

00:07:03grate a small amount of it and throw it directly into your washing machine

00:07:07instead of using the usual washing gel.

00:07:10Did you know that you can change the direction in which the door of some refrigerators opens?

00:07:15There are hinges here.

00:07:17If you fix them on the other side, the doors will open in the other direction.

00:07:21But before trying to make these adjustments yourself,

00:07:24make sure to unplug the power supply and read the instructions for your particular refrigerator model.

00:07:30Have you ever noticed that there is a shiny side and a dull side on the aluminum foil?

00:07:35Many people think that the side used up or down is important,

00:07:40because the shiny side should better retain the heat.

00:07:43But in fact, it makes no difference.

00:07:47The manufacturing process makes the two sides look slightly different,

00:07:51but they both fulfill their function in the same way.

00:07:55Aluminum foil is not only useful in the kitchen.

00:07:58Here is a little-known tip for batteries.

00:08:01Let's say you no longer have AA batteries.

00:08:03No worries, use a smaller AAA battery and a small piece of aluminum foil.

00:08:09Simply insert it on one of the ends.

00:08:12This will work because AA and AAA batteries have equivalent voltages.

00:08:17Did you know that Chinese food containers can unfold and turn into plates?

00:08:23You just have to undo it on both sides and gravity will do the rest.

00:08:28In fact, the English-speakers used to call this type of carton container

00:08:32under the name of Oyster Pail,

00:08:34because it was originally designed to contain oysters.

00:08:38There is nothing better than a slice of grilled bread with butter for breakfast,

00:08:42except for sundaes with melted caramel.

00:08:45If you find it difficult to spread your cold butter on your bread,

00:08:48here is an idea.

00:08:50Use a cheese grater.

00:08:52But on the side, the amount of butter you need is reminiscent.

00:08:55This way, the amount of butter needed will soften

00:08:59and it will be easier to spread.

00:09:02But still, the melted caramel!

00:09:05There are different shapes and sizes of dried pasta for a reason.

00:09:09Each type of pasta goes perfectly with a certain type of sauce.

00:09:14Conchiglioni, for example, are perfect with a denser and thicker sauce.

00:09:19Why? Because the sauce goes into the shells

00:09:22and makes the dish easier to serve.

00:09:25The stripes on the surface of the pasta allow you to retain the sauce.

00:09:30If you ever burn your biscuits,

00:09:33you can get them back with your favorite cheese grater.

00:09:36Just grate the burnt parts once the biscuits have been removed from the baking tray.

00:09:40But be careful! Wait until they have cooled down.

00:09:44If ever, by removing the burnt part, you dilute them a little,

00:09:47just dip them in melted chocolate.

00:09:50Once the chocolate hardens, you will have perfect biscuits.

00:09:53But let's be honest,

00:09:55does the shape of the biscuit really matter when tasting?

00:09:59I say that, I say nothing.

00:10:03If you make sandwiches with lots of ingredients,

00:10:06but you don't want the bread to be soft,

00:10:09there is a technique to prevent this from happening.

00:10:12Take the tomatoes or cucumbers you want to put in your sandwich

00:10:15and place them between two paper towels for 5 minutes.

00:10:18There you go, you can put them in the bread.

00:10:20Make sure to spread the butter, cheese or sauces like mayo or ketchup first on the bread.

00:10:26This will, in a way, seal the bread and prevent it from getting soft.

00:10:31Some people think you have to remove this little white filament

00:10:34that is next to the egg yolk before cooking it.

00:10:38I am here to tell you that these filaments are called chalazes.

00:10:41And there is no need to get rid of them.

00:10:44They are there to keep the yolk in place, in the center of the egg.

00:10:47Chalazes have no impact on the consistency and taste of your food.

00:10:51It's up to you to see if you want to remove them or not.

00:10:55Have you ever noticed that the bricks of the juice have two tabs on the sides?

00:10:59They are actually handles.

00:11:02The manufacturers designed these bricks in this way

00:11:05so that we can handle them more easily, without crushing them and getting the juice out.

00:11:12No need to be a star chef to know that you can use white sugar or brown sugar in all your recipes.

00:11:19Have you ever wondered what the difference was between the two?

00:11:22It turns out that the only thing that differentiates them is the production mode.

00:11:27We add a small amount of molasses to the chalazes.

00:11:32Molasses is a kind of syrup obtained during the transformation of the sugar cane.

00:11:36This is what is removed during refining.

00:11:39This is how white sugar is produced.

00:11:41But if a certain amount of molasses remains in the final product,

00:11:44we get chalazes, which has a more pronounced taste and a darker color.

00:11:49It's a good thing.

00:11:52You can put a lot of things in your dishwasher.

00:11:54Not just plates and cutlery.

00:11:56For example, you can wash your kitchen gloves in silicone.

00:12:00The pommels of some household appliances, such as those in your oven or your cooking plate.

00:12:04Some sponges and other reusable napkins can also be washed in the dishwasher.

00:12:10Speaking of household products for the kitchen, you can do a lot of things with the dishwasher.

00:12:15You can clean your garden furniture, for example.

00:12:18Add a little dishwasher liquid to hot water

00:12:21and use this mixture to rub all your garden furniture with a piece of fabric.

00:12:26Rinse them with your watering pipe.

00:12:29You can also use your dishwasher to remove the grease stains from your clothes.

00:12:33The stains from pasta sauce, salad seasoning.

00:12:36Hey, we all happen to miss our mouth.

00:12:39Put a little dishwasher liquid on the stain and rinse with water.

00:12:43For light clothes, it is better to use non-colored liquid.

00:12:47For the most tenacious tasks, let the dishwasher liquid work for a few minutes,

00:12:50then put the clothes in the machine as usual.

00:12:53And maybe buy yourself a bottle too.

00:12:56If you still haven't found a technique that suits you to organize your wardrobe

00:12:59and you are overwhelmed by piles of clothes,

00:13:01there is a simple trick that might work.

00:13:05It's the one-of-a-kind technique.

00:13:09For every piece of clothing you buy, you have to get rid of an old piece of clothing.

00:13:14You will regularly unclog your wardrobe.

00:13:18To find things more easily, good luck,

00:13:20leave the clothes you use most often at the level of your eyes.

00:13:24You will be able to find them more easily and take them out of the wardrobe quickly.

00:13:28Clothes that you use less often, like evening clothes for example,

00:13:31can be stored under or above the level of your eyes.

00:13:36The old boxes can be very useful.

00:13:39If you stick very powerful magnets inside,

00:13:42they can serve as magnet containers.

00:13:45You can store a lot of objects in there, like kitchen pliers,

00:13:48ice spoons, or even cutlery.

00:13:52You can place them on any metallic surface,

00:13:55like the door of your fridge.

00:13:57They will go very well with the rest of your magnets.

00:14:00At the bottom of your laundry, you have an essential tool

00:14:03to pick up animal hair.

00:14:05It even works better than adhesive rollers.

00:14:07These are laundry dryers.

00:14:10Just one of these dryers and a little elbow grease,

00:14:12and you're done.

00:14:13No more hair everywhere.

00:14:14It works on all surfaces,

00:14:16but it is particularly effective on cluttered furniture.

00:14:20If you don't want your doors to squeak every time you enter a room,

00:14:24take a soap and rub it directly on the hinges.

00:14:28It only works for a short time,

00:14:30but it will work until you go to a DIY store.

00:14:34To buy lubricant, for example.

00:14:37Have you ever noticed that in some elevators

00:14:39there is a star next to this or that floor?

00:14:42And no, it's not to indicate the floor of my office.

00:14:46It is used to indicate the closest exit,

00:14:49and it is not always on the first floor.

00:14:51It is rather on the floor closest to the street.

00:14:56Have you ever wondered why the stop signs are red?

00:14:59Some time ago, there were no specific colors.

00:15:03Before 1920, there was not even a standard shape.

00:15:08In 1922, someone had the idea of imposing the octagon.

00:15:12But at first, these signs were yellow.

00:15:15The red faded too quickly because of the exposure to the sun.

00:15:19Yellow was the best option.

00:15:23It was only 30 years later that the more resistant enamel paint was invented.

00:15:27It was then that the color of the stop signs became red.

00:15:30After all, it is the best color if you want something to be easily spotted.

00:15:36Did you know that there is a type of rosette that grows higher than a man?

00:15:40According to the Guinness Book of Records,

00:15:42the highest rosette that has ever existed is in Vienna.

00:15:47And it measures more than 8.50 meters high.

00:15:50Yes, this rosette dared.

00:15:53Like our digital footprints, which are unique,

00:15:56there are no tigers with the same stripes.

00:16:00This is how people who work with these big cats

00:16:02distinguish them from each other.

00:16:06I bet you didn't know that the Maison Blanche

00:16:08has its own florist in the basement.

00:16:12This business takes care of the ornaments

00:16:14for all the events organized at the Maison Blanche.

00:16:18We know that pizza has become a basic food of American cuisine

00:16:21despite its Italian origins.

00:16:24This dish is so appreciated

00:16:26that Americans buy 350 pieces of pizza every second.

00:16:32Personally, I don't think I eat enough.

00:16:35To meet the incredible demand,

00:16:37about 17% of all restaurants in the United States are pizzerias.

00:16:44There is a technique to make lemonade

00:16:46without the lemon seeds getting in your glass.

00:16:49Cut the fruit in half

00:16:50and try to squeeze it with kitchen tweezers.

00:16:53The pointed part of half the lemon

00:16:55must be placed down.

00:16:57The juice will flow, but the seeds will remain in the lemon.

00:17:00Mmm, lemonade!

00:17:02It's good with pizza!

00:17:05Look at the ceiling.

00:17:06Do you see your fan?

00:17:08If you don't have one,

00:17:09pretend you have one.

00:17:11There is a hidden function that you probably don't know.

00:17:14It can be a switch on the fan itself

00:17:17or a button on the remote.

00:17:19But most fans can change direction.

00:17:22And there is a reason why you want them to do it.

00:17:25In winter, you want it to turn clockwise,

00:17:28which pushes the hot air from top to bottom.

00:17:31In summer, you want it to turn in the opposite direction

00:17:34to draw the air that accumulates on the ground to the top

00:17:37and circulate it in the room.

00:17:40Your microwave probably has a silent mode.

00:17:43Yes, this dish you heated at 3 a.m.

00:17:45by leaving your finger just above the stop button

00:17:48to press it for a second

00:17:49before the timer starts

00:17:51could have been a lot less noisy.

00:17:53It depends on the brand,

00:17:54but by now pressing the 0 or 1 button,

00:17:57you should be able to activate the silent mode.

00:18:00Now you can use the microwave as you wish

00:18:03at any time of day and night.

00:18:05These spring-loaded door stops on the shelves

00:18:07have another function.

00:18:09They hold the door in place.

00:18:12By placing them on the floor

00:18:14and opening the door above it,

00:18:16the spring hooks to the bottom of the door

00:18:18and holds it open.

00:18:21Did you know that you probably

00:18:22tied your sneakers badly all this time?

00:18:25There is a small hole at the top,

00:18:27where the laces end,

00:18:28which is called a heel lock.

00:18:30Can you guess what it's for?

00:18:32Yes, it locks your heels

00:18:33so that they don't slip and don't give you a light bulb

00:18:36or make your socks slip down.

00:18:38Which is the worst feeling, isn't it?

00:18:41All you're supposed to do

00:18:42is pass each lace through its hole,

00:18:45which creates a small loop.

00:18:47The opposite lace then goes through this loop.

00:18:51Tie your laces tightly,

00:18:52as you would normally,

00:18:53and there you go,

00:18:54your heels are secure.

00:18:56Speaking of laces,

00:18:58if you ever tie them so tightly

00:18:59that you can't undo them,

00:19:02a pastry ingredient

00:19:03has a hidden feature that can help you.

00:19:06Yes, you heard right,

00:19:07a pastry ingredient.

00:19:09Corn starch can certainly make your sauce thicker,

00:19:13but it can also undo stuck knots.

00:19:15All you have to do is sprinkle it on any knot

00:19:17by completely wrapping it,

00:19:19and it will come undone more easily.

00:19:21It works with necklaces, ropes, or even thread.

00:19:25You put your friend's ring on,

00:19:27forgetting that his hands are much smaller than yours,

00:19:30and now it's stuck.

00:19:32Just take a bottle of glass cleaner.

00:19:34This product has a small hidden feature

00:19:36to remove stuck rings.

00:19:38A little splash,

00:19:39and the ring will come off right away.

00:19:43Let's say you're writing something on a pencil

00:19:46during an exam, for example,

00:19:47but, oops, you forgot your eraser.

00:19:50However, you didn't forget to bring your sandwich.

00:19:53Luckily, the bread is what you need

00:19:55to erase the wrong answer you just wrote.

00:19:58Roll up some very compact breadcrumbs

00:20:00until it has a texture

00:20:02that can be described as rubber.

00:20:05Then erase it as you would with real rubber.

00:20:08Why do bakers always hide this from us?

00:20:11It could have been useful in so many situations.

00:20:14If you wear a leather jacket,

00:20:16first of all, you're cool.

00:20:18And secondly, you're probably missing

00:20:20the use of a hidden feature

00:20:22that everyone can see.

00:20:24The straps on the top of your jacket

00:20:26are not just decorative.

00:20:28If you unbutton them

00:20:30while you slip the straps of your bag,

00:20:32you can close them over the straps

00:20:34to keep them in place.

00:20:37No matter how many jumping jacks,

00:20:39wheels, or breakdance steps you're going to do,

00:20:42your bag won't go anywhere.

00:20:44When you have to pack leftovers,

00:20:46aluminum foil is clearly a valuable ally.

00:20:49But it also has a place in the mess

00:20:51thanks to a hidden feature.

00:20:53Imagine you don't have any more sheets to dry your clothes.

00:20:55Your clothes come out of there full of static electricity

00:20:58so much so that they make your hair stand

00:21:00like those of an evil cartoon scientist.

00:21:03Here's what you have to do.

00:21:05Make two very compact balls of aluminum foil.

00:21:08Put your clothes back in the dryer with the balls

00:21:11and restart a drying cycle.

00:21:13They will come out of there without static electricity.

00:21:16After cooking hard-boiled eggs,

00:21:19how do you get them out of the boiling water

00:21:22without burning your fingers?

00:21:24With a kitchen whip.

00:21:26Push it against the egg

00:21:28and it will get stuck between the rods of the whip.

00:21:30You can now get it out easily.

00:21:33The colors of the bread bag clips

00:21:35actually have a secret meaning.

00:21:37They tell you the day of the week

00:21:39when the bread was packed.

00:21:41Brown means Monday, brown means Thursday

00:21:44and white means Friday.

00:21:47Most bread manufacturers follow the same system

00:21:50because a particular company provides most of its clips.

00:21:54So when you choose bread,

00:21:56you can evaluate its freshness

00:21:58thanks to the color of the clip.

00:22:00If you see it in the street,

00:22:02you tell yourself that a fire mouth

00:22:04measures about one meter high.

00:22:06But the real size of this device,

00:22:08used to supply water to firefighters

00:22:10if we count the rest of the fire mouth

00:22:12that is hidden underground.

00:22:14Most of the time, they are red.

00:22:16And it's not just a matter of urban design.

00:22:18First of all, they must be bright colors

00:22:20and easily identifiable

00:22:22so that firefighters can locate them quickly if necessary.

00:22:24In the USA, the choice of color depends on

00:22:26the amount of water the fire mouth can contain.

00:22:28It can sometimes vary depending on the place,

00:22:30but here is the logic.

00:22:32A red fire mouth can project

00:22:341,890 liters of water per minute,

00:22:36while an orange one can project

00:22:38at least 3,780 liters.

00:22:40The green ones can project

00:22:425,680 liters of water per minute.

00:22:44And the biggest ones, blue,

00:22:46can generally provide more than 5,680 liters.

00:22:50Hi, bowling fans!

00:22:52It doesn't bother you that your bowling ball is cracking?

00:22:54It turns out that most of them can get damaged

00:22:56due to poor storage or temperature peaks.

00:23:00Now, let's be honest.

00:23:02Since it is already a bit broken,

00:23:04do you want to know what is inside your bowling ball?

00:23:06Because I do. Let's take a look.

00:23:08The inner core of the bowling ball

00:23:10is mainly composed of metallic powder oxides,

00:23:12such as calcium oxide or iron.

00:23:14They are mixed with resin

00:23:16and a catalyst to harden everything.

00:23:18Thus, the shape of the ball you see

00:23:20inside the bowling ball

00:23:22is actually its heaviest part.

00:23:24It also influences the way the bowling ball turns

00:23:26when it crosses the track.

00:23:28The same goes for paint bombs.

00:23:30When you shake it, it makes a weird noise.

00:23:32But what is this thing inside?

00:23:34It is a small weight

00:23:36that is supposed to keep the paint mixture in place

00:23:38and keep its shape.

00:23:40It is generally made of plastic, metal or ceramic.

00:23:42It is mainly used as a wheel

00:23:44to ensure that the paint is well mixed

00:23:46before applying it to the surface of your choice.

00:23:50Have you ever wondered how the bottles of soda

00:23:52kept this sparkling and refreshing for so long?

00:23:54Well, they have a small plastic seal

00:23:56attached to the lid.

00:23:58It is installed here to prevent the gas from escaping

00:24:00and the drink from becoming flat.

00:24:02Even if you shake it in your bag all day long.

00:24:06Speaking of things you use when it is very hot.

00:24:08Wait, wait.

00:24:10Don't put on your cap yet.

00:24:12Look at it for a moment

00:24:14and you will notice that there is a small button at the top.

00:24:16It is used for something

00:24:18or it is just there to look pretty.

00:24:20Some say that at the time when people

00:24:22started using such clothes to cover their heads,

00:24:24this button was used for something.

00:24:26As it is above the cap,

00:24:28the upper button helps to keep

00:24:30the crown of the cap in one piece.

00:24:32Today, thanks to recent projects

00:24:34on fabric design and patterns,

00:24:36this button has rather become an aesthetic element.

00:24:38It is used to cover the part where all the pieces of fabric

00:24:40are joined.

00:24:42Your cap may not have a button,

00:24:44but don't you think it is nicer with it?

00:24:46Cotton discs have two sides

00:24:48and if you take the time to look at them carefully,

00:24:50you will see that they have different textures.

00:24:52In case you are wondering

00:24:54why the side with the texture is used

00:24:56for the make-up and the flat side

00:24:58is used to remove it.

00:25:00Book lover,

00:25:02this is for you.

00:25:04The jackets that come with many books

00:25:06with a rigid cover are not only intended

00:25:08to embellish the book.

00:25:10They can also serve as bookmarks.

00:25:12All you have to do is fold the pages

00:25:14you have already read under the inside of the jacket

00:25:16and that's it.

00:25:18The next time you take your favorite shirt,

00:25:20take a look at the buttonhole at the top.

00:25:22It must be sewn horizontally

00:25:24It turns out that the city shirt

00:25:26was designed this way

00:25:28since the first and last button

00:25:30are the first to unbutton during the day.

00:25:32They therefore modified the meaning of the buttonhole

00:25:34so that the shirt stays well adjusted

00:25:36before you are ready to remove it.

00:25:38Nowadays, we have so many different versions

00:25:40of this incredible dessert

00:25:42that it is difficult to imagine

00:25:44that we could have lived without it.

00:25:46You can find different types of cookies

00:25:48with chocolate chips everywhere,

00:25:50in ice cream or even in cakes.

00:25:52It was born in 1930.

00:25:54The story goes that a woman named

00:25:56Ruth Grave Wakefield

00:25:58was preparing chocolate cookies

00:26:00while waiting for her guests to arrive.

00:26:02Very quickly, she realized

00:26:04that she had no more pastry chocolate,

00:26:06an essential ingredient to prepare

00:26:08classic cookies.

00:26:10To remedy this situation,

00:26:12she chopped a half-sweet chocolate bar

00:26:14thinking that it would end up

00:26:16evenly distributed in the dough

00:26:18given the heat of the oven.

00:26:20The result was a modern dessert

00:26:22that we can no longer ignore.

00:26:24And speaking of popular snacks,

00:26:26chips are even younger

00:26:28than chocolate chip cookies.

00:26:30At least from a historical point of view.

00:26:32There are many stories

00:26:34that try to explain how they were invented.

00:26:36One of them is the following.

00:26:38A chef named George Crum,

00:26:40based in New York,

00:26:42created chips in 1953.

00:26:44He wanted to try a new cooking method

00:26:46when one of his customers

00:26:49He said they were too thick

00:26:51and a little soft.

00:26:53Crum then imagined finely chopped

00:26:55potatoes and fries until they were brown.

00:26:57People loved this dish

00:26:59and welcomed this very first

00:27:01batch of chips in Bresouvers.

00:27:05Ice cream, anyone?

00:27:07If the story is true, in 1904,

00:27:09at the Saint Louis Universal Exhibition,

00:27:11an ice cream vendor no longer had a cut

00:27:13to serve his specialty.

00:27:15So he made a waffle in the shape of a cone

00:27:17and the rest now belongs to history.

00:27:19Okay, I admit it.

00:27:21Similar products to chewing gums

00:27:23have existed since ancient Greece.

00:27:25So this discovery is not particularly revolutionary.

00:27:27But the chewing gum we buy today

00:27:29appeared at the end of the 1800s.

00:27:31An American inventor

00:27:33named Thomas Adams

00:27:35wanted to mix different chemicals

00:27:37to create synthetic rubber.

00:27:39He tried and failed, moreover,

00:27:41to exploit the properties of gum for his experience,

00:27:43but ended up creating this delicious snack.

00:27:45Today, we still use gum

00:27:47to produce a certain number of chewing gums.

00:27:49In the 1800s,

00:27:51a man named Jean-Baptiste Joly

00:27:53worked in the textile industry

00:27:55as a fabric manufacturer.

00:27:57The discovery of the following invention,

00:27:59which we use a lot nowadays,

00:28:01has a little to do with him

00:28:03and more to do with his bedroom wife.

00:28:05The story goes that the woman accidentally

00:28:07threw a kerosene lamp on a tablecloth.

00:28:09Instead of getting angry

00:28:11when seeing the damaged fabric,

00:28:13she decided to clean the fabric.

00:28:15Have you already understood?

00:28:17Yes, this is how the very first pressing

00:28:19was born.

00:28:21A very clean accident,

00:28:23if I may say so.

00:28:25Now, I love this one.

00:28:27Did you know that kerosene lamps

00:28:29were originally called friction lights?

00:28:31In any case, it is the name

00:28:33that their inventor,

00:28:35a chemist named John Walker,

00:28:37gave them in 1826.

00:28:39One day, he scratched

00:28:41and realized that they were on fire

00:28:43and created sparks.

00:28:45Originally made of cardboard,

00:28:47they were then made of

00:28:49wood and glass.

00:28:51In the 1940s,

00:28:53a man named Harry Coover

00:28:55came across a chemical formula

00:28:57that seemed to adhere to everything it touched.

00:28:59The scientific community

00:29:01at the time did not think much about it

00:29:03because the formula did not seem to have

00:29:05much application at the time.

00:29:07It was only in 1951

00:29:09that the scientific community

00:29:11decided to reuse it.

00:29:13With another researcher,

00:29:15Disman Kodak,

00:29:17named Fred Joyner.

00:29:19They used a complete name,

00:29:21adhesive composition

00:29:23based on cyanacrylate,

00:29:25but you must know it

00:29:27under the shorter version,

00:29:29superglue.

00:29:31It has so much use in terms

00:29:33of security today

00:29:35that it is difficult to believe

00:29:37that the bottle had slightly

00:29:39melted but retained its shape.

00:29:41It was expected to break

00:29:43into a thousand pieces.

00:29:45Intrigued by this unknown

00:29:47peculiarity until then,

00:29:49he pondered and discovered

00:29:51that what kept the glass in place

00:29:53was a substance, cellulose nitrate,

00:29:55which covered the inside of the glass.

00:29:57This is how humanity

00:29:59discovered the glass of security.

00:30:01The next time you get dressed,

00:30:03look at your shirt closely.

00:30:05It is sewn vertically,

00:30:07but look at the very last hole.

00:30:09It is sewn horizontally, isn't it?

00:30:11The lower part of your shirt

00:30:13is the one that endures the most tension

00:30:15because that's where your hips are.

00:30:17This buttonhole is not designed

00:30:19like this by chance.

00:30:21It prevents your shirt from tearing

00:30:23when your hips move.

00:30:25The layer of foam that forms

00:30:27when you put foam bath in your bathtub

00:30:29is not just fun.

00:30:31It also acts as an insulator

00:30:33The pompom on the top of your hat

00:30:35was not placed there just to look pretty.

00:30:37Originally, it was sewn on the sailors' hats

00:30:39to prevent them from sticking their heads

00:30:41on the ceilings,

00:30:43often too low, of the ships.

00:30:45The crackers were pierced with holes

00:30:47to prevent them from breaking or cracking

00:30:49during their cooking.

00:30:51If these holes did not exist,

00:30:53the steam would accumulate inside

00:30:55and break them.

00:30:57The numbers written on the stickers

00:30:59that are found on the oranges

00:31:01If the number 1 is 3 or 4,

00:31:03it means that the fruit was grown

00:31:05according to the usual agricultural techniques.

00:31:075 numbers starting with an 8

00:31:09means that the orange

00:31:11has been genetically modified.

00:31:135 numbers starting with an 9

00:31:15means that the fruit is organic.

00:31:17The margins on the pages of the notebooks

00:31:19were not just used to take notes,

00:31:21but were originally used as protection.

00:31:23At the time, rats were very present in houses

00:31:25and paper was one of their favorite food.

00:31:27The margins were therefore added

00:31:29so that the rats would gnaw on the white areas

00:31:31rather than the ones that included

00:31:33important writings.

00:31:35If you empty your Chinese meal

00:31:37and put it on a plate,

00:31:39you are giving yourself trouble for nothing,

00:31:41just like the seasoning jars

00:31:43on paper in fast food.

00:31:45These cardboard boxes can be unfolded

00:31:47to form a plate of suitable size for your dish.

00:31:49The long neck of your soda bottle

00:31:51is designed to encourage you

00:31:53to hold it there.

00:31:55Thus, the heat of your hand

00:31:57can warm up all your drink.

00:31:59Why do the back of some jackets

00:32:01have a buttonhole

00:32:03without a corresponding button?

00:32:05Originally, coats and jackets

00:32:07were equipped with a corresponding button

00:32:09so that the person wearing them

00:32:11could raise their collar

00:32:13and tie it around the neck

00:32:15to make it warmer.

00:32:17Over time, people stopped doing it

00:32:19and this button was removed.

00:32:21But many manufacturers have kept

00:32:23this buttonhole by tradition.

00:32:25It is not intended to protect you

00:32:27from harmful waves.

00:32:29It is a Faraday cage.

00:32:31This lozenge on your backpack

00:32:33is a fishing rod.

00:32:35It is there so that you can pass

00:32:37cords through the holes

00:32:39to transport additional equipment.

00:32:41It is ideal for camping

00:32:43or long hikes.

00:32:45Golf balls are covered with small holes

00:32:47so that you can fly more easily in the air.

00:32:49This reduces the resistance

00:32:51and allows them to travel

00:32:53more easily in the air.

00:32:55Makeup cotton has two different sides

00:32:57for a good reason.

00:32:59The bushy side is used to apply

00:33:01the makeup while the other

00:33:03is used to remove it.

00:33:05The donuts are pierced

00:33:07so that the inside and the outside

00:33:09cook evenly.

00:33:11Before the addition of these holes,

00:33:13the inside was often greasy

00:33:15and doughy while the outside

00:33:17was crispy.

00:33:19The charger of your laptop

00:33:21can be put in place

00:33:23to prevent it from getting tangled

00:33:25or damaged.

00:33:27If you look at a soda bottle,

00:33:29you will notice a disc

00:33:31inside the cap of the bottle.

00:33:33This disc allows you to seal

00:33:35the bottle hermetically

00:33:37so that the gas does not escape.

00:33:39The holes in the donut sticks

00:33:41are not intended to prevent

00:33:43suffocation in case of ingestion.

00:33:45They are there to keep the candy in place.

00:33:47The excess liquid flows

00:33:49so that the candy does not slip.

00:33:51Leather motorcycle jackets

00:33:53are often sewn diagonally.

00:33:55This is not just a fashion effect.

00:33:57Vertically sewn zippers

00:33:59can be rolled up

00:34:01when you lean forward

00:34:03but not a diagonal zipper.

00:34:05The little triangle on your gas gauge

00:34:07tells you which side of the car

00:34:09the gas trap is on.

00:34:11You will never stop on the wrong side

00:34:13of the pump now.

00:34:15Vacuum cleaners are equipped

00:34:17with a vacuum cleaner,

00:34:19but do you really know

00:34:21what it is for?

00:34:23It is used to clean dust

00:34:25and is perfect for cleaning

00:34:27framed paintings,

00:34:29stores and abattoirs.

00:34:31These little holes

00:34:33in the chocolate box

00:34:35actually have a function.

00:34:37Press on the hole

00:34:39near the candy

00:34:41and it will come out

00:34:43without your fingers getting dirty.

00:34:45Invisible floors are empty.

00:34:47They add height to the building

00:34:49and make it more impressive

00:34:51without increasing the number of real floors

00:34:53while respecting the construction contract.

00:34:55These hollow floors also prevent

00:34:57the spread of fires.

00:34:59Women's shirt buttons

00:35:01are traditionally placed on the left

00:35:03for a good reason.

00:35:05At the time, it was a sign of wealth

00:35:07because it meant that a maid

00:35:09who had dressed you

00:35:11and had the buttons on the left

00:35:13would not be able to see you.

00:35:15Your cuticles are useful

00:35:17so think well before

00:35:19getting rid of them.

00:35:21This little skin area

00:35:23is there to protect your nails

00:35:25from infections.

00:35:27Without it,

00:35:29bacteria and fungi

00:35:31can infiltrate.

00:35:33What is the difference

00:35:35between a wooden belt

00:35:37and a plastic belt?

00:35:39In addition to helping

00:35:41with maintenance

00:35:43or in case of emergency.

00:35:45These buttons are rivets

00:35:47and are placed in the most fragile

00:35:49places of your jeans

00:35:51to protect it from tears

00:35:53due to tension or movement.

00:35:55The crown of the Statue of Liberty

00:35:57has seven points

00:35:59representing the seven seas

00:36:01and the seven continents.

00:36:03They have been added

00:36:05so that it can offer

00:36:07some of its famous freedom

00:36:09The salt is not only used to season

00:36:11it also eliminates tenacious odours.

00:36:13Rubbing it on your fingers

00:36:15after chopping garlic

00:36:17will make the odour disappear.

00:36:19It also works on shoes.

00:36:21If you are in a hurry to go out

00:36:23but your phone is discharged

00:36:25put it in airplane mode

00:36:27to charge it faster.

00:36:29Men's shirts have a loop

00:36:31in the back that allows you

00:36:33to hang them on a hook

00:36:35without rubbing them.

00:36:37They are made of varnished leather

00:36:39and will also make them shine.

00:36:41Some trunks are equipped

00:36:43with an emergency lock

00:36:45in case you accidentally lock yourself

00:36:47inside. You are never too careful.

00:36:49You wait a bit to find it

00:36:51and then pull on it

00:36:53to open the trunk.

00:36:55The painted grids have a secret slide

00:36:57in the back that can be removed

00:36:59to remove the crumbs.

00:37:01Look at the keyboard

00:37:03of your laptop.

00:37:05To type, your fingers must rest

00:37:07on these two keys.

00:37:09These bumps have been added

00:37:11to position your hands correctly

00:37:13without looking at the keyboard.

00:37:15If you don't have fingers,

00:37:17it may be because you fed the sharks

00:37:19a bit too close and in this case

00:37:21we can't do anything for you.

00:37:23Have you ever wondered

00:37:25what these additional holes

00:37:27at the top of your sports shoes are for?

00:37:29They are designed so that you can

00:37:31attach the shoes in several different ways.

00:37:33You can attach things like a bad net

00:37:35or even a damaged toe.

00:37:37In addition,

00:37:39you can modify the look of your shoes

00:37:41as you wish.

00:37:43Many people

00:37:45use the cover of their books

00:37:47as a page marker.

00:37:49This is not a problem.

00:37:51Thanks to it, you won't have to frame your pages.

00:37:53But the first goal of a cover

00:37:55is to protect the book from external damage.

00:37:57For example, if you spill fruit juice

00:37:59or drop food on your book

00:38:01you have to read it.

00:38:03The tic-tac box

00:38:05has this little groove on top

00:38:07so that you can distribute

00:38:09a single tic-tac at a time.

00:38:11Even if, let's be honest,

00:38:13no one does that.

00:38:15Most of us spill a lot at once

00:38:17and then we put all these tic-tacs in too much.

00:38:19These little rubber tips

00:38:21that you see between the tire tread

00:38:23are there for your safety.

00:38:25They tell you what is the minimum height

00:38:27of your tread.

00:38:29If your tread and edges are equal

00:38:31it is time for you to go to a tire shop

00:38:33as soon as possible.

00:38:35But if the wear witnesses

00:38:37still have margin

00:38:39compared to the edges

00:38:41you can ride quietly.

00:38:43What about this black grid

00:38:45on the microwave window?

00:38:47This is what we call a Faraday cage.

00:38:49It is there to prevent the microwaves

00:38:51from escaping and to turn the whole room

00:38:53into an oven.

00:38:55If the microwaves escape

00:38:57this cage is not there to prevent you

00:38:59from seeing your meal while it is cooking

00:39:01but so that the electromagnetic energy

00:39:03stays inside.

00:39:05And why not a screwdriver

00:39:07compatible with a wrench?

00:39:09Attach your screwdriver to the end

00:39:11of your wrench to increase

00:39:13its torsion force.

00:39:15This is why the head of your screwdriver

00:39:17is designed as it is.

00:39:19When you have weird angles

00:39:21you can use this strategy.

00:39:23You have probably already heard this myth

00:39:25about the pen.

00:39:27It is false.

00:39:29Its purpose is also to erase the pencil.

00:39:31But in case you write something

00:39:33on a more robust paper.

00:39:35The blue side can also remove

00:39:37these traces that may remain

00:39:39after using the pink eraser.

00:39:41Have you ever wondered

00:39:43why oranges in supermarkets

00:39:45were most often in red mesh bags?

00:39:47It is a tip for the fruits

00:39:49to have a brighter color

00:39:51which encourages you to buy them.

00:39:53You can now clean your pans

00:39:55and your sink,

00:39:57your kitchen appliances

00:39:59and your dishes.

00:40:01You can see that golf balls

00:40:03do not have a perfectly round shape.

00:40:05Their surface is covered

00:40:07with many small crevices

00:40:09which golf balls have not always had.

00:40:11At one point, experienced golfers

00:40:13began to notice that over time

00:40:15the old balls presenting imperfections

00:40:17such as notches and bumps

00:40:19could fly further.

00:40:21So they began to produce balls

00:40:23with notches

00:40:25so that they could go further

00:40:27and faster.

00:40:29You may have noticed

00:40:31that there were sometimes

00:40:33small crevices

00:40:35on the top of the toothpicks.

00:40:37It is more hygienic

00:40:39because when you break it,

00:40:41you can press the toothpick

00:40:43on it and it will not touch anything else.

00:40:45Another security device

00:40:47that you will find in your car

00:40:49is a tab on your rearview mirror.

00:40:51With it, you can change

00:40:53the position of the mirror

00:40:55so as not to be blinded

00:40:57if there is a car behind you

00:40:59driving in the headlights.

00:41:01This small tab helps you

00:41:03to control the glow of the lights

00:41:05coming from the rear.

00:41:07This function appeared in the 1930s

00:41:09but it was only at the beginning

00:41:11of the 1970s that it became

00:41:13a standard equipment

00:41:15for most cars and other trucks.

00:41:17It is a microphone

00:41:19and it is there so that your phone

00:41:21can record the sound

00:41:23when you rotate your camera.

00:41:25Some cables have a thick cylinder

00:41:27towards the end of the cord.

00:41:29This is called a ferrite core.

00:41:31It is a magnetic iron oxide

00:41:33that stops electromagnetic

00:41:35interferences at high frequencies.

00:41:37You see, for example,

00:41:39this annoying static noise

00:41:41that you get if you approach

00:41:43your phone too close to a speaker.

00:41:45This is why cable cords

00:41:47with large cylinders are rather useful

00:41:49because they prevent this kind of thing.

00:41:51Do you know why

00:41:53almost all luggage bags

00:41:55and backpacks have two zippers?

00:41:57It is much more practical

00:41:59and easier to open it this way.

00:42:01But that's not all.

00:42:03You can also lock

00:42:05these two sliding zippers

00:42:07together so that the things

00:42:09inside your bags are safe.

00:42:11You know how public places' toilets

00:42:13are mainly for better

00:42:15air circulation.

00:42:17This type of door also allows

00:42:19you to clean the toilets more easily

00:42:21or to check if they are occupied

00:42:23when you wait.

00:42:25Apart from that,

00:42:27if you are stuck inside

00:42:29and the lock is broken,

00:42:31you still have a way to escape.

00:42:33You can simply crawl out.

00:42:35You have already noticed

00:42:37these plastic tips on the cutters.

00:42:39The blade also has a notch

00:42:41always with sharp edges.

00:42:43You can separate these pieces of blade

00:42:45thanks to these plastic tips.

00:42:47Then, you just have to move

00:42:49the sliding part to push

00:42:51this new blade forward.

00:42:53If you have already taken a moment

00:42:55to examine a Lambda supermarket cart,

00:42:57especially its foldable section,

00:42:59you have probably noticed

00:43:01these metal loops that protrude.

00:43:03They are designed to protect the items

00:43:05you carry in your cart.

00:43:07You can use them to hang bags

00:43:09such as bread,

00:43:11which you do not want to crush accidentally,

00:43:13with heavier products

00:43:15or things more easily breakable

00:43:17such as eggs.

00:43:19Many coffee cups have

00:43:21curved notches on their bottom.

00:43:23When you wash your cups,

00:43:25place them against the drawer

00:43:27of your dishwasher.

00:43:29This way, water will not accumulate

00:43:31inside and your favorite cup

00:43:33will be completely dry

00:43:35when you take it out of here.

00:43:37You can also find a square hole

00:43:39in the handle of their spoon.

00:43:41It is there so that you can attach it

00:43:43to this special machine

00:43:45that mixes the ice cream

00:43:47with your favorite toppings.

00:43:49The machine has a bar that slides

00:43:51into this square-shaped spoon

00:43:53and that gently stirs it.

00:43:55And you get this spoon

00:43:57to minimize damage

00:43:59during the process.

00:44:01Pretty cool, isn't it?

00:44:03An ordinary can of milk

00:44:05has a random operation

00:44:07but this can fills several objectives.

00:44:09One of them is to inflate

00:44:11if there is a gas accumulation.

00:44:13This happens when your milk has turned.

00:44:15So you do not even need to taste it

00:44:17to check.

00:44:19In addition, the can is there

00:44:21so that the bottle does not explode

00:44:23if you drop it accidentally.

00:44:25It allows an expansion space

00:44:27that takes in the sudden pressure

00:44:29that occurs when you drop the bottle.

00:44:31The dental floss.

00:44:33It is easy to guess

00:44:35how to use it.

00:44:37But it is also great in the kitchen

00:44:39because it is a very precise cake cutter.

00:44:41Much more effective than an ordinary knife.

00:44:45Most kitchen scissors

00:44:47have an anvil opening

00:44:49right here in the center

00:44:51where the blades and handles meet.

00:44:53This is something you can use

00:44:55to trim difficult herbs

00:44:57like thyme or rosemary.

00:44:59Thanks to this opening,

00:45:01you can cut them all in one move.

00:45:05A large part of yoghurt or flan

00:45:07is provided with an aluminum foil lid.

00:45:11And in most cases,

00:45:13you can use this lid as a disposable spoon.

00:45:15Just take it off

00:45:17and after a few simple folds,

00:45:19you will have a small spoon

00:45:21perfect for your four hours.

00:45:23The workers of construction sites

00:45:25and ivory are usually dressed in orange

00:45:27because this color is visible

00:45:29even in bad weather.

00:45:31It is the most effective color

00:45:33to attract attention and alert people.

00:45:35No wonder that many security vests

00:45:37and warning cones are also orange.

00:45:39The stop sign has an eight-sided shape

00:45:41to help drivers recognize it easily

00:45:43even if they see it from behind.

00:45:45And when the signs were not yet reflective,

00:45:47the octagonal shape prevented drivers

00:45:49from confusing the stop sign

00:45:51with any other at night.

00:45:53The rough strips on the sides of the road

00:45:55are placed there to alert drivers

00:45:57to the noise and vibrations

00:45:59when the tires pass on these strips.

00:46:01There are magnetic locks

00:46:03on the fuel pumps in service stations

00:46:05in case someone leaves

00:46:07with the gasoline gun

00:46:09still attached to his tank.

00:46:11In this case,

00:46:13the lock automatically detaches the pipe.

00:46:15The gasoline forms a rainbow

00:46:17in a puddle of water

00:46:19because it cannot mix with water.

00:46:21It forms a thin membrane above.

00:46:23When the light reflects on it

00:46:25and on the water at the same time,

00:46:27you get a rainbow.

00:46:29The triple handle of a jerry can

00:46:31is there to allow two people

00:46:33to carry it more easily

00:46:35and to distribute the liquid evenly.

00:46:37Gasoline cans often have a second hole

00:46:39that must also be opened

00:46:41before pouring the liquid.

00:46:43The passage of air will prevent it

00:46:45from overflowing and therefore from wasting.

00:46:47Most gasoline cans

00:46:49have two holes with caps,

00:46:51one larger and one smaller.

00:46:53This will prevent the liquid

00:46:55from sticking and spreading

00:46:57on your clothes and on the floor.

00:46:59Another little trick

00:47:01that we often neglect

00:47:03is the tip of the cap of an ointment.

00:47:05Most tubes are usually sealed

00:47:07with a plastic film or an aluminum sheet

00:47:09and opening it with your nails

00:47:11is not the best idea.

00:47:13The tip on the cap

00:47:15makes it easy to open

00:47:17even the most tightly sealed tube.

00:47:19You can use most screwdrivers

00:47:21to open the cap.

00:47:23Just place the wrench

00:47:25on the handle of the screwdriver.

00:47:27This way you will need

00:47:29to apply much less force

00:47:31than usual.

00:47:33You will also be able

00:47:35to reach more easily

00:47:37difficult areas of access.

00:47:39Cameras are installed

00:47:41in shops, banks

00:47:43and hospitals to monitor everything.

00:47:45If something happens,

00:47:47you can call the police

00:47:49but they can't do anything

00:47:51if something serious happens.

00:47:53In addition, there is nowhere

00:47:55to hide in a plane.

00:47:57During the flight,

00:47:59cameras are useless

00:48:01and after the flight,

00:48:03passengers' statements

00:48:05work as well as cameras.

00:48:07So if cameras are useless,

00:48:09why spend money on them?

00:48:11Water is very easy to clean

00:48:13because it has triangular molecules

00:48:15made up of an oxygen atom

00:48:17that are slightly different

00:48:19on their opposite sides,

00:48:21a bit like magnets.

00:48:23That's why water easily attaches

00:48:25to other molecules,

00:48:27including those that make up

00:48:29the dirt.

00:48:31Many individual houses

00:48:33have triangular roofs

00:48:35because it allows rain,

00:48:37snow and dead leaves

00:48:39to slip on the door.

00:48:41If all these things pile up

00:48:43on the roof of your house,

00:48:45you can easily let the light through

00:48:47on a sunny day.

00:48:49It also diffuses all the colors

00:48:51of the light spectrum.

00:48:53This makes us perceive

00:48:55the clouds as being white.

00:48:57The thicker the clouds are

00:48:59and contain droplets of water,

00:49:01the less they let the light through

00:49:03and the darker they appear.

00:49:05A good number of doors

00:49:07are made of brass,

00:49:09bronze or some alloys of copper.

00:49:11These metals have an antigen effect.

00:49:13You can wash your hands

00:49:15very quickly in a few hours.

00:49:17But that doesn't mean

00:49:19you shouldn't wash your hands.

00:49:21Diamonds have symmetrical shapes

00:49:23to show you their brilliance.

00:49:25At first, these precious stones

00:49:27are not so beautiful.

00:49:29They go through several stages

00:49:31of size and then become

00:49:33elegant pieces.

00:49:35Most of these stones

00:49:37have a round shape

00:49:39with slightly pointed corners.

00:49:41If the left hole is charged negatively,

00:49:43the right hole is charged positively.

00:49:45And the space below is the ground.

00:49:47Electricity must flow through the circuit.

00:49:49The current goes through the positive hole,

00:49:51through the charger of your phone,

00:49:53for example,

00:49:55then through the negative hole.

00:49:57Have you ever wondered

00:49:59what your jeans pocket was for?

00:50:01People used to wear

00:50:03buttoned-up watches.

00:50:05The pocket was designed for this.

00:50:07Today, no one wears

00:50:09small objects like a ring.

00:50:11In London, there are poles

00:50:13that look a bit like air lamps,

00:50:15but they don't have bulbs.

00:50:17Their official name is

00:50:19Smoking Pipe,

00:50:21and they are part of history today.

00:50:23But they were very useful

00:50:25in the 19th century.

00:50:27These hollow poles

00:50:29evacuated the air and

00:50:31bad-smelling explosive gases

00:50:33to avoid, let's say,

00:50:35unwanted consequences.

00:50:37They can help you break nuts,

00:50:39crab shells,

00:50:41and other hard objects.

00:50:43You can also use them

00:50:45to open jars and bottles

00:50:47or remove grass stems.

00:50:49Leather often looks dull to the eye

00:50:51because it is covered with

00:50:53tiny scratches and scuffs.

00:50:55It scatters the light

00:50:57that hits the material.

00:50:59When you put on

00:51:01a layer of wax,

00:51:03you fill these tiny crevices.

00:51:05That's why leather

00:51:07has a brighter shade.

00:51:09The crevices are filled

00:51:11with a special fluorescent,

00:51:13semi-transparent ink

00:51:15that can shine in low light.

00:51:17Yellow and light green shades

00:51:19are the most popular

00:51:21because they don't block

00:51:23the text after a black-and-white photocopy.

00:51:25Photocopiers perceive

00:51:27yellow and light green marks

00:51:29as very pale and don't print them.

00:51:31Magnets are made

00:51:33of different colors.

00:51:35The blue part is the south pole

00:51:37and the red part is the north pole.

00:51:39Both poles work simultaneously

00:51:41and increase the attraction.

00:51:43The 1 cm diameter hole

00:51:45in the elevator doors

00:51:47is a lock.

00:51:49If the doors are locked,

00:51:51an operator can manually

00:51:53open them by inserting

00:51:55a special key in the hole.

00:51:57As for the tiny holes

00:51:59in the plane's windows,

00:52:01they are made of a special material

00:52:03that is less expensive.

00:52:05It prevents potential damage

00:52:07to the window.

00:52:09The hole is located

00:52:11in the central window.

00:52:13It not only balances the pressure

00:52:15but also prevents

00:52:17the window from collapsing.

00:52:19The mechanical stairs brushes

00:52:21are there for your safety.

00:52:23They prevent you

00:52:25from getting too close

00:52:27to the edge of the elevator.

00:52:29This way, your clothes

00:52:31won't get stuck between the steps.

00:52:33You see the sun in yellow or orange

00:52:35because the atmosphere of our planet

00:52:37is full of colors like blue,

00:52:39green and purple.

00:52:41This is also why the sun

00:52:43looks warmer at sunrise and sunset.

00:52:45If you go to a store to buy oranges,

00:52:47you will probably find them

00:52:49in a red net.

00:52:51It's pure marketing

00:52:53and this color is not a random choice.

00:52:55When they are wrapped

00:52:57in a red net,

00:52:59oranges look more orange,

00:53:01more juicy and more attractive.

00:53:03So you are more likely

00:53:05to buy them.

00:53:07Lemons are usually sold

00:53:09in green net nets

00:53:11for the same reason.

00:53:13If they were wrapped in red,

00:53:15they would look more orange.

00:53:17Green goes better with yellow

00:53:19and makes the color of the lemons

00:53:21stand out more.

00:53:23Mattress manufacturers

00:53:25Two mattresses from two different companies

00:53:27can be of exactly the same quality

00:53:29but cost a different price.

00:53:31Most people will never know

00:53:33and will believe that different patterns

00:53:35indicate a different quality.

00:53:37So when you buy,

00:53:39don't worry about the pattern.

00:53:41Almost all hotels have white bed sheets.

00:53:43They choose this color specifically

00:53:45to show how high their standards

00:53:47of cleanliness are.

00:53:49The whiter the sheets are,

00:53:51the more high-end the hotel looks.

00:53:53The holes in some types of cheese

00:53:55are not random.

00:53:57Gruyère, for example,

00:53:59is made with special bacteria

00:54:01that produce carbon dioxide.

00:54:03When CO2 is emitted,

00:54:05it inflates like a chewing gum bubble

00:54:07leaving tiny craters

00:54:09that are also called

00:54:11cheese eyes.

00:54:13It is then cooled

00:54:15but the holes remain there.

00:54:17More than 40 billion Oreos

00:54:19are made each year.

00:54:21It is the best-selling industrial biscuit

00:54:23in the world.

00:54:25The geometric pattern

00:54:27stamped on these biscuits

00:54:29has the Nabisco logo,

00:54:31a symbol of American quality

00:54:33surrounding the word Oreo.

00:54:35William Turnier created

00:54:37the design of this chocolate biscuit

00:54:39as we know it today in 1952.

00:54:41If you use reusable bottles,

00:54:43you probably know

00:54:45that they sometimes tend to smell bad.

00:54:47Even if you only use them

00:54:49to put ordinary water in them,

00:54:51they still end up smelling.

00:54:53But it is not the water itself

00:54:55that releases this smell.

00:54:57It is the microorganisms it contains.

00:54:59If you drink water in a bottle,

00:55:01the particles of your saliva and sweat

00:55:03remain inside.

00:55:05These bacteria begin to accumulate in the bottle

00:55:07which generates this smell.

00:55:09If you choose reusable bottles,

00:55:11make sure to wash them every day

00:55:13to prevent the bacteria from accumulating.

00:55:15After washing them,

00:55:17let them dry completely

00:55:19before reusing them.

00:55:21There are not only jeans that are blue.

00:55:23Police uniforms are also blue.

00:55:25The first police officers

00:55:27dressed in this way

00:55:29appeared in London in the 19th century.

00:55:31They received this blue uniform

00:55:33to contrast with the red and white uniform

00:55:35already worn by the military.

00:55:37Two decades later,

00:55:39such police forces were adopted

00:55:41in the United States

00:55:43which followed the same model.

00:55:45This color turned out to be very effective.

00:55:47They blend into a nocturnal environment

00:55:49and the police officers can observe

00:55:51what is happening without being noticed.

00:55:53In addition,

00:55:55stains are not too visible on dark fabrics.

00:55:57And then everyone knows

00:55:59that the police officers wear blue

00:56:01and that they are recognized by this one color.

00:56:03So why mess all this up?

00:56:05Baby carrots are tiny

00:56:07and unlike ordinary carrots,

00:56:09they are wet.

00:56:11Which is reminiscent of our little human babies.

00:56:13These mini carrots

00:56:15are not special carrots.

00:56:17They are made from ordinary carrots

00:56:19by removing the skin

00:56:21and the outer layers

00:56:23and then rubbing them

00:56:25to make them look prettier.

00:56:27The problem is that they can no longer retain moisture.

00:56:29A normal carrot retains a certain amount of water

00:56:31in it thanks to the layers that imprison it.

00:56:33Once cut,

00:56:35the mini carrots dry easily.

00:56:37This is why they are generally sold

00:56:39in plastic bags containing a little water.

00:56:41Jeans are made of metal rivets

00:56:43and have always been.

00:56:45Jacob Davis, the man who made

00:56:47the first pair of jeans,

00:56:49added copper rivets to the places

00:56:51where pants are most likely to tear,

00:56:53namely the strap and the pockets,

00:56:55to make them more resistant.

00:56:57Today, rivets

00:56:59rather serve a decorative function

00:57:01because they are a traditional feature

00:57:03of blue jeans.

00:57:05Another peculiarity of these pants

00:57:07is the presence of these small pockets

00:57:09which apparently have nothing.

00:57:11This may be the case today,

00:57:13but years ago,

00:57:15when jeans were particularly

00:57:17loved by cowboys,

00:57:19this small pocket was specially designed

00:57:21to store a watch.

00:57:23In addition, at the time,

00:57:25a jean had only four pockets.

00:57:27This tiny pocket,

00:57:29the watch pocket,

00:57:31two large pockets at the front

00:57:33and one pocket at the back.

00:57:35Car headrests are a matter of comfort

00:57:37If you remove a headrest,

00:57:39you will see two solid metal bars.

00:57:41If you ever find yourself locked up

00:57:43or trapped in a vehicle,

00:57:45you can use these bars to break the glass

00:57:47and escape.

00:57:49These little red spots that you sometimes see

00:57:51after breaking an egg have nothing to worry about.

00:57:53These tiny bloodstains

00:57:55can be caused by the rupture

00:57:57of a small blood vessel in the hen

00:57:59when she laid her egg.

00:58:01Eggs with these bloodstains

00:58:03can be consumed without danger,

00:58:05but they can also be removed

00:58:07if it bothers you.

00:58:09This will not affect the taste of the egg.

00:58:11In the Toblerone logo

00:58:13and its famous mountain,

00:58:15there is the image of a bear

00:58:17standing on its hind legs

00:58:19and about to devour this yodeler over there.

00:58:21No, I'm kidding.

00:58:23This is explained by the fact

00:58:25that bears were very present

00:58:27on the side of Bern,

00:58:29one of the largest cities in Switzerland,

00:58:31where its founder created

00:58:33the name of the creator, Theodore Tobler,

00:58:35and the Italian word Torone,

00:58:37which means a nougat with honey

00:58:39and almonds.

00:58:41The space located under a nougat

00:58:43is used to protect it during transport.

00:58:45This technique is called

00:58:47intermediate suspension.

00:58:49Not only are nougats better protected

00:58:51in their polystyrene nougats,

00:58:53but they also soften more quickly

00:58:55and more uniformly.

00:58:57You probably thought that this hole

00:58:59in the body of the pencils had no reason to be,

00:59:01but there is one.

00:59:03It is an aeration system

00:59:05that allows the ink to flow more easily.

00:59:07In this way, equal air pressure

00:59:09is created inside and outside

00:59:11of the pen,

00:59:13which allows the ink to flow

00:59:15easily into the tip.

00:59:17It is not a coincidence that

00:59:19the bottles of soy sauce

00:59:21have two beakers.

00:59:23The sauce is very liquid

00:59:25and flows out of the bottle

00:59:27quite quickly as soon as it is turned over.

00:59:29It flows everywhere at least once in their life.

00:59:31This is why, nowadays,

00:59:33restaurants prefer to serve

00:59:35soy sauce in special bottles

00:59:37with two beakers.

00:59:39This design allows you to control

00:59:41the flow of sauce that flows.

00:59:43Just put your finger on a beaker

00:59:45while you pour the sauce over the other.

00:59:47If you press your finger hard on it,

00:59:49the sauce will automatically stop flowing.

00:59:51And if you remove it, it will flow again.

00:59:53Now, I challenge you to get

00:59:55your fingers in your nose.

00:59:57You may have noticed that the seats

00:59:59of trains and buses were covered

01:00:01with fabric with bizarro patterns.

01:00:03Do you know why?

01:00:05These patterns are used to cover

01:00:07the dirt and stains on the seats.

01:00:09The brighter the color is

01:00:11and the more patterns there are,

01:00:13the more difficult it will be

01:00:15for a passenger to notice

01:00:17these disgusting stains.

01:00:19In addition, these patterns are generally

01:00:21so ugly that no one wants

01:00:23to look at them long enough

01:00:25to make them less visible.

01:00:27No bus will ever have

01:00:29white seats.

01:00:31That's a guarantee.

01:00:33The metal tab of the soda cans

01:00:35can be turned over

01:00:37and you can slip a straw in it,

01:00:39which prevents you from

01:00:41constantly putting it back in place.

01:00:43This tab replaced the pin

01:00:45created in the early 1960s.

01:00:47You remember, right?

01:00:49It could be very pointy

01:00:51and easily pose a threat

01:00:53Now, you can insert your straw

01:00:55directly into one of them.

01:00:57This also means that you can

01:00:59produce bubbles at will

01:01:01and make all your friends laugh

01:01:03like a three-year-old.

01:01:05Sometimes, when you buy clothes,

01:01:07you receive a plastic bag

01:01:09containing an extra button

01:01:11and a piece of fabric.

01:01:13If the fabric is used to

01:01:15cover holes, it can also be used

01:01:17to test the effects of various

01:01:19detergents on certain surfaces.

01:01:21You can also use it to

01:01:23wash your clothes.

01:01:25Mechanical stairs are equipped

01:01:27with these black, hard-haired brushes

01:01:29for the same reason that

01:01:31some of them have yellow lines

01:01:33on their steps.

01:01:35This is to dissuade users

01:01:37from getting too close

01:01:39to dangerous places.

01:01:41People don't always pay attention

01:01:43and sometimes clothes get stuck

01:01:45near the point where the step

01:01:47meets the edge of the stairs.

01:01:49This also allows you to catch

01:01:51stuffed animals and prevent

01:01:53other small objects from falling

01:01:55into the gutters.

01:01:57The containers for imported dishes

01:01:59that are most often associated

01:02:01with Chinese restaurants are designed

01:02:03not only to bring dishes home

01:02:05but also to store them

01:02:07in the refrigerator.

01:02:09They can also be used as plates

01:02:11since it is possible to eat

01:02:13directly inside without having

01:02:15to worry about dirtying your dishes.

01:02:17These containers were designed

01:02:19to transport freshly chopped oysters

01:02:21and were known overseas

01:02:23under the name of Oyster Pails.

01:02:25They were then adapted

01:02:27to serve as water containers

01:02:29for food.

01:02:31Have you ever wondered

01:02:33why the coins had these small stripes

01:02:35on the edge?

01:02:37It is a vestige of the time

01:02:39when they were much more valuable.

01:02:41The diggers could easily

01:02:43cut the edges to melt

01:02:45the coins that had been altered.

01:02:47It is no longer necessary today

01:02:49but the coins still have this style.

01:02:51All the diggers and some cookies

01:02:53have small holes in the middle

01:02:55to ensure that the final product

01:02:57will have the right texture.

01:02:59These tiny holes allow the steam

01:03:01to escape so that your cookies

01:03:03do not break. If you did not prick

01:03:05the dough, the steam would accumulate

01:03:07inside and the final result

01:03:09may be succulent, it would have

01:03:11a rather strange shape.

01:03:13The diggers even had to spin

01:03:15before going to sleep

01:03:17because they inherited this

01:03:19behavior from their ancestors.

01:03:21At the time, there were no well-baked

01:03:23baskets for the doggies,

01:03:25and most of them had to repel

01:03:27the tall grass to create a small

01:03:29corner for you to pee.

01:03:31In addition, these movements

01:03:33made all the animals that could

01:03:35have hidden in the vegetation

01:03:37flee. The donuts have this

01:03:39ring shape for a similar reason.

01:03:41They were often associated with the American police

01:03:43because in the 1950s,

01:03:45donut shops were one of the rare

01:03:47places to stay open late at night.

01:03:49It was the ideal place for

01:03:51policemen who wanted to nibble

01:03:53a piece or even take care of the paper

01:03:55during their night shift.

01:03:57If your jean is blue on the outside

01:03:59and white on the inside, it is because

01:04:01the fabric was woven in a judicious way.

01:04:03The chain wire is dyed,

01:04:05while the wire has no color.

01:04:07It is simply white.

01:04:09In this way, the manufacturers

01:04:11reduce the amount of dye needed

01:04:13for each garment.

01:04:15It's not as if they were gold-plated.

01:04:17Well, I know it's a bit cold

01:04:19to the touch, especially during a

01:04:21winter ice day, but did you know

01:04:23that brass door handles

01:04:25are actually really useful,

01:04:27in addition to being elegant and shiny?

01:04:29As it is a copper alloy,

01:04:31brass has antimicrobial properties.

01:04:33This means that it can help

01:04:35eliminate germs and harmful bacteria,

01:04:37sometimes in less than two hours.

01:04:39In very busy places,

01:04:41it is even more useful.

01:04:43But since brass is much more expensive

01:04:45than other metals such as nickel and steel,

01:04:47we no longer see many door handles

01:04:49of this type nowadays.

01:04:51Speaking of beautiful polyvalent objects,

01:04:53most screwdrivers have a very

01:04:55little secret that is unique to them.

01:04:57They can sometimes slip into a key

01:04:59to create more torque

01:05:01during torsion, not to mention

01:05:03their usefulness when it comes to screws

01:05:05in hard-to-reach places.

01:05:07There is a reason why women's button shirts

01:05:09are intended for left-handed people,

01:05:11and this has nothing to do with fashion.

01:05:13This practice dates back to the time

01:05:15when chambermaids helped ladies

01:05:17to get dressed, and it was easier

01:05:19for them to accomplish their tasks

01:05:21with this orientation.

01:05:23The fact that the buttons are placed

01:05:25in this way was a sign of wealth.

01:05:27It is therefore easy to imagine

01:05:29why this practice has persisted,

01:05:31even if most people

01:05:33do not know how to do it.

01:06:03The people who got the idea

01:06:05of this brilliant invention

01:06:07are engineers who were inspired

01:06:09by the way chocolate bars

01:06:11are divided.

01:06:13Wait a minute!

01:06:15Do not throw away this cardboard

01:06:17packaging right away.

01:06:19It is very likely that you have

01:06:21bags of silica gel somewhere

01:06:23at the bottom of the box.

01:06:25As this gel is a drying tool,

01:06:27it absorbs the humidity

01:06:29of its environment so that

01:06:31it can be placed in a container

01:06:33next to the silica gel to reduce damage.

01:06:35You do not need to be a mechanic

01:06:37to know when the tires

01:06:39of a standard car must be replaced

01:06:41because they are equipped

01:06:43with a well-designed indicator.

01:06:45If you look closer,

01:06:47you will see that the tire strips

01:06:49are made up of a pile of rubber notches.

01:06:51When the marks are equal

01:06:53to the perpendicular bars,

01:06:55this is the sign that you must

01:06:57make an appointment with your

01:06:59mechanic to make sure

01:07:01that the car is safe.

01:07:03The upper corners of the windshield

01:07:05of a car have textured black dots

01:07:07integrated at the edge of the glass.

01:07:09This detail is not there

01:07:11for design reasons.

01:07:13It is a coated coating,

01:07:15which means that a special type

01:07:17of ceramic paint is added

01:07:19to the glass to protect

01:07:21its sealant from UV rays.

01:07:23It also allows you to hide

01:07:25and create a coarser surface

01:07:27Every time you hit the road,

01:07:29check if there is a small strip

01:07:31under the rearview mirror of your car.

01:07:33I bet you didn't know

01:07:35it was there to help you

01:07:37switch from day vision

01:07:39to night vision.

01:07:41It uses a prismatic glass technology

01:07:43to blur the reflection

01:07:45and reduce the glare

01:07:47of the headlights behind you

01:07:49in traffic.

01:07:51These manual rearview mirrors

01:07:53were invented in the 1930s

01:07:55When you are driving,

01:07:57take a look at the headrests

01:07:59because you probably don't know

01:08:01that they have a hidden function.

01:08:03Of course, they can be adjusted

01:08:05to suit all sizes of passengers

01:08:07so that they benefit from adequate

01:08:09support for their head and neck.

01:08:11The hidden feature is that

01:08:13they are detachable and have

01:08:15two very solid metal bars.

01:08:17If you ever get stuck in a car

01:08:19and you have to run away quickly,

01:08:21these bars can be very useful

01:08:23If you ever get stuck in a car

01:08:25and you suddenly run out of gas,

01:08:27what I'm going to describe to you

01:08:29looks more like a joke

01:08:31than a real situation

01:08:33likely to occur.

01:08:35But what happens if you are in such a hurry

01:08:37that you accidentally leave

01:08:39with the gasoline gun

01:08:41still in the tank?

01:08:43Well, the guns were designed

01:08:45to avoid any risk.

01:08:47They are equipped with a separation device

01:08:49that allows the pipe to be detached

01:08:51Initially designed at the beginning

01:08:53of the 20th century to be worn

01:08:55exclusively by basketball players,

01:08:57sneakers have quickly become

01:08:59one of the essential elements of fashion

01:09:01just like jeans and leather jackets.

01:09:03If you look closely,

01:09:05you will see that they have two additional

01:09:07holes on the side,

01:09:09similar to shoe laces.

01:09:11They are made like this not only

01:09:13to provide additional ventilation

01:09:15but also to allow people

01:09:17to be more creative with their laces

01:09:19and their shoes.

01:09:21Admit it, you always thought that

01:09:23the laces are attached to an end

01:09:25in order to keep them together

01:09:27until you are ready to start your meal.

01:09:29This may not be quite true.

01:09:31If we look at them more closely,

01:09:33it turns out that these wooden tools

01:09:35have a square-shaped end.

01:09:37The laces made in this way

01:09:39are from an old Japanese traditional design

01:09:41that makes it easy to break

01:09:43the ends.

01:09:45The separate end can then be used

01:09:47as a support for the chopsticks

01:09:49in order to keep them cleaner

01:09:51in the hope that they can be reused

01:09:53since they will not touch the table

01:09:55or any other surface.

01:09:57Women's bikes have a special design

01:09:59that surprisingly has a historical

01:10:01and fashionable function.

01:10:03The lower frame is largely intended

01:10:05to compensate for the generally smaller size

01:10:07of women compared to that of a normal man.

01:10:09If this is the case for the handlebars

01:10:11and the saddle, the general frame

01:10:13is lower for an additional reason.

01:10:15At the time when women wore long skirts

01:10:17and dresses all day,

01:10:19every day they had to make sure

01:10:21that their outfits would not get stuck in the frame.

01:10:23This is how we designed a bike

01:10:25with a lower frame,

01:10:27perfectly suited to women

01:10:29and their needs of the time.

01:10:31The fact that the toothpaste is multicolored

01:10:33is not only a nice advantage

01:10:35to make dental hygiene more fun.

01:10:37There is a secret explanation

01:10:39related to each of the colors

01:10:41dating back to the 1970s.

01:10:43Women were increasingly interested

01:10:45in their oral health

01:10:47and were therefore looking for products

01:10:49that could do more than just

01:10:51brush their teeth.

01:10:53A company was the first to do this

01:10:55by adding a mouthwash to its toothpaste,

01:10:57i.e. the blue band.

01:10:59It then added the red band

01:11:01intended to contain ingredients

01:11:03that help you take care of your gums.

01:11:05Speaking of toothpaste,

01:11:07check the cap the next time

01:11:09you open a new tube

01:11:11to see if there is a pointed cone

01:11:13inside the cap,

01:11:15which allows you to pierce

01:11:17the toothpaste seal

01:11:19without cutting yourself

01:11:21or damaging your gums.

01:11:23Not to mention that it is more hygienic

01:11:25since you will not be able

01:11:27to transfer germs

01:11:29or other bacteria

01:11:31into the product itself.

01:11:33As for the articles

01:11:35to be placed on the counter

01:11:37of the bathroom,

01:11:39toothbrushes are equipped

01:11:41with a pattern of blue hairs

01:11:43interlaced in white hairs.

01:11:45This blue tint is intended

01:11:47to pale to indicate

01:11:49when you should replace

01:11:51your toothbrush.

01:11:53Dentists say that toothbrushes

01:11:55must be replaced every 3 to 4 months,

01:11:57but this gives a good reminder

01:11:59in case of forgetfulness.

01:12:01Do you still like to play with Legos?

01:12:03I don't judge you,

01:12:05it's a great hobby for all ages.

01:12:07Legos are designed

01:12:09to avoid the risk of suffocation.

01:12:11The most dangerous problem

01:12:13if a person swallows one of these pieces

01:12:15is the obstruction of the respiratory tract.

01:12:17The presence of a hole

01:12:19inside the Lego head

01:12:21allows the air to flow freely

01:12:23through the piece

01:12:25until it can be safely removed.

01:12:27We are now used to all kinds

01:12:29of modern bulbs,

01:12:31some in tubular shape,

01:12:33others in diamond shape

01:12:35Historically,

01:12:37bulbs were round

01:12:39and this initial shape

01:12:41was useful in itself.

01:12:43It was mainly linked

01:12:45to the fact that glass bulbs

01:12:47were blown by hand,

01:12:49which gave them this round shape

01:12:51at the beginning.

01:12:53The practical reason

01:12:55was that the filament

01:12:57of the bulb

01:12:59had to be at the same distance

01:13:01from each surface

01:13:03so that the end of a cable

01:13:05is placed there

01:13:07and seems totally useless.

01:13:09In fact,

01:13:11it is a ferrite pearl

01:13:13that is associated

01:13:15with many electric wires

01:13:17to reduce electromagnetic interference.

01:13:19Electric wires act

01:13:21as involuntary antennas

01:13:23and diffuse EMIs.

01:13:25There is a reason

01:13:27why the circuit board

01:13:29inside the microwave

01:13:31is round or square.

01:13:33When you place containers

01:13:35with these shapes inside,

01:13:37the energy is concentrated

01:13:39on the corners

01:13:41instead of being evenly distributed

01:13:43like in a round container.

01:13:45The temperature gauge

01:13:47of a bread grill

01:13:49is generally used

01:13:51to determine the degree

01:13:53of cooking of the pies.

01:13:55But the other more specific

01:13:57use of the gauge

01:13:59is that the older the bread,

01:14:01the more time it will need

01:14:03in the bread grill

01:14:05to get the golden result

01:14:07you are looking for.

01:14:09Most ovens offer you

01:14:11the possibility

01:14:13to leave the door open

01:14:15when you grill a dish

01:14:17inside.

01:14:19You probably think

01:14:21that the goal

01:14:23is to cool the oven

01:14:25after use.

01:14:27When you leave the door

01:14:29slightly open,

01:14:31you get the desired result

01:14:33without cooking the whole dish

01:14:35until it is crispy.

01:14:37You probably noticed

01:14:39that your dishwasher

01:14:41has specific areas

01:14:43for different types

01:14:45of covers and dishes.

01:14:47But all dishes

01:14:49must be oriented

01:14:51towards the center

01:14:53and not all in the same direction.

01:14:55Glucid-based stains

01:14:57from tomatoes and potatoes

01:14:59must be placed here.

01:15:01The detergent is more concentrated

01:15:03on the outside during cleaning,

01:15:05which creates a cascade-like

01:15:07cleaning.

01:15:09This is why protein-based stains

01:15:11like eggs, for example,

01:15:13must be placed here.

01:15:15The ceiling fans push the fresh air

01:15:17down when it is hot,

01:15:19making the room circulate.

01:15:21But they can serve you

01:15:23if you use the switch on the side

01:15:25or if you use the fan.

01:15:27So if you want to save money

01:15:29on heating and try to heat

01:15:31your room quickly on a cold day,

01:15:33put the fan on.

01:15:35It will push the air up

01:15:37and spread the hot air around you,

01:15:39thus heating the room more effectively.

01:15:41Do you still use post-it notes

01:15:43instead of these new sophisticated

01:15:45applications on all imaginable devices?

01:15:47Welcome to the club!

01:15:49Whatever you use,

01:15:51they always end up falling.

01:15:53If you have already encountered this problem,

01:15:55it is because you took them off

01:15:57from the bottom to the top.

01:15:59It is this way of doing things that causes

01:16:01the collapse. By taking them off on the side,

01:16:03you make sure that they remain flat,

01:16:05ready to remind you of your daily tasks.

01:16:07Did you know that open-boxes

01:16:09were invented only 50 years

01:16:11after cans became common?

01:16:13So how was it possible

01:16:15to open a can before?

01:16:17There are a few alternative methods

01:16:19in case you have missed

01:16:21your faithful open-box.

01:16:23All you need is a metal spoon.

01:16:25Place the can on the worktop,

01:16:27hold it firmly

01:16:29and hold the head of the spoon.

01:16:31Press and vigorously rub

01:16:33the edge of the lid of the can

01:16:35on a small surface.

01:16:37It takes time, but by rubbing,

01:16:39a small notch is formed

01:16:41and soon turns into a hole.

01:16:43Once the hole is wide enough

01:16:45to let the tip of the spoon through,

01:16:47place the spoon on the lid

01:16:49and continue rubbing the edges

01:16:51until you can finally access

01:16:53the meal it contains.

01:16:55You have won!

01:16:57Most toilets depend on the pressure

01:16:59of the water and the gravity

01:17:01to function. A power failure

01:17:03will not affect them.

01:17:05But if yours need electricity

01:17:07to function, you should worry

01:17:09about their use in case of a power failure.

01:17:11The good news is that electricity

01:17:13is only used to fill the toilets

01:17:15with water.

01:17:17As the mechanism of the water pump

01:17:19always works, open the toilet tank,

01:17:21pour a few liters,

01:17:23and you will be able to evacuate

01:17:25everything you need.

01:17:27The nozzles in the shower ducts

01:17:29occur over a long period.

01:17:31It is inevitable.

01:17:33We lose 50 to 100 hairs a day

01:17:35and many of them try to settle

01:17:37in our shower ducts.

01:17:39The hair is the main base

01:17:41of the obstruction,

01:17:43a good thing is to use your vacuum

01:17:45and to put the tip in the hole

01:17:47after removing the grid.

01:17:49Use a damp cloth around the tip

01:17:51making sure that the air

01:17:53cannot escape. The vacuum

01:17:55will be able to vacuum things that obstruct

01:17:57much more easily. You will thus avoid

01:17:59the plumber's costs who use

01:18:01this technique themselves.

01:18:03To make your candles last longer,

01:18:05cut their wick several times

01:18:07and keep them as far away as possible

01:18:09from water and moisture.

01:18:11This will ensure that the wax of your candle

01:18:13remains firm and stable and that it continues

01:18:15to burn more slowly for a longer period.

01:18:17The empty space between

01:18:19the windows of the oven door

01:18:21is there for a good reason.

01:18:23You can slide a brush to clean

01:18:25the window of the oven door.

01:18:27It is easy to access this space

01:18:29through the bottom of the door.

01:18:31Open the lower part, then push the brush

01:18:33into the hole.

01:18:35When you park in a garage,

01:18:37you may have trouble determining

01:18:39where to park your car.

01:18:41All cars are not equipped with sensors

01:18:43that ensure that you keep the right distance

01:18:45before the bumper makes a notch on the wall.

01:18:47Stretching a rope with a tennis ball

01:18:49from the ceiling at the right distance

01:18:51will help you learn the best distance

01:18:53to respect when parking

01:18:55in relation to the wall.

01:18:57We have all been told to unlock a lock

01:18:59with WD-40 or lubricant.

01:19:01Yes, we all know that we should

01:19:03have some at home.

01:19:05But if you don't have any,

01:19:07the best alternative is to draw

01:19:09with a gray pencil along the edges

01:19:11of the key, then insert it

01:19:13into the lock.

01:19:15Keep doing this until the hole

01:19:17in the lock is lubricated

01:19:19and the key works without any problems.

01:19:21The pliers are likely to damage

01:19:23the taps and shower heads

01:19:25when you use them to repair them

01:19:27and they are also difficult to grab.

01:19:29So take two pieces of the end

01:19:31of an old watering pipe

01:19:33and attach them to the pliers' jaws.

01:19:35You will see a huge improvement

01:19:37in grip and you will avoid

01:19:39the risk of wear.

01:19:41You can find a good use for used rubber

01:19:43for different things in the house.

01:19:45When you have enough to tighten

01:19:47or loosen a screw with a screwdriver,

01:19:49try using a simple rubber.

01:19:51Place a part of it

01:19:53in the handle of the screwdriver

01:19:55and it will have a much better grip.

01:19:57Moving cement blocks

01:19:59is not harmless to the lower back.

01:20:01Even with a wheelbarrow,

01:20:03it can be risky to drop the cement

01:20:05on the ground without damaging it.

01:20:07Three simple cylinder-shaped pipes

01:20:09can make all the difference,

01:20:11regardless of the size of the block.

01:20:13Try lifting the edge of the first pipe

01:20:15with a lever, then push

01:20:17and maneuver it by gradually

01:20:19directing the three pipes

01:20:21to the desired place.

01:20:23Just make sure you don't do it in a slope.

01:20:25The first time you hit a nail

01:20:27can be a great success or

01:20:29a really deadly thumb.

01:20:31Use a perfect-shaped hair clip

01:20:33to hold the nail in place,

01:20:35so that your hand is safe

01:20:37and you can hit the nail without fear.

01:20:39Use a pencil instead of a pen

01:20:41or a pencil when you work

01:20:43with a circular saw

01:20:45to make sure the marks are not erased.

01:20:47They will also be easier to see

01:20:49in troubled water.

01:20:51Checking the pipes on the roof

01:20:53and determining when they need to be cleaned

01:20:55can take a lot of time.

01:20:57Using tape, attach a mirror

01:20:59to the end of a long broom

01:21:01and check whether the pipes

01:21:03need to be cleaned.

01:21:05To help you keep your balance

01:21:07when you check the pipes,

01:21:09attach a pair of old sports shoes

01:21:11to the foot of the ladder.

01:21:13The distance between the shoe

01:21:15and its grip will ensure

01:21:17an additional level of safety.

01:21:19Liquid calfing products

01:21:21are usually in the form of huge tubes

01:21:23so that you can never use them

01:21:25all at once.

01:21:27If you ever find yourself stuck

01:21:29in the trunk of your car,

01:21:31stay calm.

01:21:33All cars are supposed to be equipped

01:21:35with an emergency lock

01:21:37to open the trunk

01:21:39when needed,

01:21:41which is very unlikely.

01:21:43These locks are so well designed

01:21:45that they can be opened

01:21:47by anyone,

01:21:49regardless of their age.

01:21:51In addition,

01:21:53they can be used

01:21:55in the dark.

01:21:57You can even pull them out

01:21:59with your mouth

01:22:01if you don't have enough room

01:22:03to use your hands.

01:22:05And that doesn't matter

01:22:07how you land in this trunk.

01:22:09Change of subject.

01:22:11If you work with thread and a needle,

01:22:13don't forget that you don't need

01:22:15to insert the needle directly

01:22:17into the coil.

01:22:19You risk losing it,

01:22:21not to mention that you could easily

01:22:23damage the thread.

01:22:25Thread and needle

01:22:27are located at the bottom

01:22:29of the thread coil.

01:22:31You just need to pull it out.

01:22:33You can even store several needles

01:22:35at the same time.

01:22:37Throwable pencils have a little secret.

01:22:39Have you ever noticed

01:22:41that on some of them

01:22:43there is a little hole

01:22:45in the plastic part?

01:22:47It's actually a basic ventilation system.

01:22:49It's supposed to allow the ink

01:22:51to flow out of the bottle.

01:22:53OK, I know it's a super common reflex,

01:22:55but it's not really necessary

01:22:57to shake the dispensers

01:22:59to get the product out.

01:23:01You don't believe me?

01:23:03You're not the only one.

01:23:05So go get your favorite salt or pepper

01:23:07bottle in your closet.

01:23:09If it has one of these

01:23:11removable plastic caps,

01:23:13it's perfect for this experiment.

01:23:15Instead of shaking the bottle,

01:23:17try to hold it with the plastic cap

01:23:19so that the ink will flow out

01:23:21without you having to shake the bottle

01:23:23and mess up your kitchen.

01:23:25In the same order of ideas,

01:23:27most salt dispensers and pepper dispensers

01:23:29are equipped with strips

01:23:31at the bottom of the green part.

01:23:33In case the seasoning

01:23:35gets stuck inside,

01:23:37place the bottom of the salt dispenser

01:23:39against the bottom of the pepper dispenser

01:23:41and make little circles

01:23:43so that the crepes

01:23:45stick to each other.

01:23:47When it's cold,

01:23:49you often wear so many layers of clothing

01:23:51that you can barely feel the straps

01:23:53of your handbag or backpack on your shoulders.

01:23:55Not to mention the speed

01:23:57with which they slip.

01:23:59Some jackets have an integrated solution

01:24:01to fix this problem,

01:24:03in the form of a small strap on the shoulder

01:24:05with a hook or button.

01:24:07It is designed to open and close easily

01:24:09so that you can keep your handbag in place

01:24:11all the time.

01:24:13Most of the time,

01:24:15you can also use

01:24:17your vegetable peeler

01:24:19to cut thin slices of onion.

01:24:21Just cut the onion

01:24:23into four vertically

01:24:25and then start slicing it.

01:24:27This can also prevent you

01:24:29from crying with your onion.

01:24:31Most people don't pay attention to this,

01:24:33but if you ever take a closer look

01:24:35at your toothpaste tube,

01:24:37you will certainly see small colored drawings,

01:24:39whether they are dots or squares.

01:24:41Colors can vary.

01:24:43They can be black, green,

01:24:45red or even blue.

01:24:47These colored dots are actually

01:24:49intended to help the toothpaste assembly machines.

01:24:51They allow you to know

01:24:53where and when these machines

01:24:55have to cut the toothpaste tubes

01:24:57and fold them to pack them.

01:24:59Look at your shoes.

01:25:01If there is an element that seems a little strange to you,

01:25:03know that it is always there for a good reason.

01:25:05Most manufacturers do not add

01:25:07additional elements to the shoes

01:25:09just for fun.

01:25:11On winter shoes, for example,

01:25:13there is often a small loop

01:25:15at the top and at the back.

01:25:17It is there to help you put them on

01:25:19because you can adjust it quickly

01:25:21by pulling on it.

01:25:23In addition, it also allows you to suspend

01:25:25the soles somewhere,

01:25:27probably to dry them,

01:25:29because most of these little boots

01:25:31are designed to be worn

01:25:33during the coldest and humidest months.

01:25:35I admit that it has already happened to me

01:25:37at least once to accumulate layers of clothes

01:25:39but it becomes problematic

01:25:41when it comes to sitting down.

01:25:43What do you do with your coat or jacket?

01:25:45The next time you take the plane,

01:25:47look closer at the seat in front of you.

01:25:49The hook that holds the tablet

01:25:51vertically can be used as a hook

01:25:53for your jacket.

01:25:55As long as you don't need to eat

01:25:57during the flight, you can use it.

01:25:59Most mascaras last

01:26:01between 3 and 6 months,

01:26:03depending on the manufacturer,

01:26:05but you can speed up this process

01:26:07by continuously pumping the brush

01:26:09of the mascara to try to distribute

01:26:11more products, you fill the tube

01:26:13with air.

01:26:15The mascara then dries much faster

01:26:17and it damages more quickly

01:26:19and does not fulfill its mission as before.

01:26:21There is a simple way to check

01:26:23if your mascara is still good enough

01:26:25to be used.

01:26:27If you don't hear a little pop

01:26:29when you take out the brush,

01:26:31you may need to buy a new one.

01:26:33I know that we live in the era

01:26:35of better sound quality,

01:26:37it is always recommended to use

01:26:39headphones that connect

01:26:41via audio jacks.

01:26:43Do you remember noticing black stripes

01:26:45on these jacks?

01:26:47They are not there just to hold them

01:26:49when you plug them into your phone

01:26:51or laptop.

01:26:53Made in a special insulating material,

01:26:55these bands are intended to protect

01:26:57the wires during sound transmission.

01:26:59Depending on the number of bands,

01:27:01you can guess which end goes where.

01:27:03Did you know that the company

01:27:05that produced them wanted to blackmail you

01:27:07by depriving you of a complete portion?

01:27:09No, no, it's a way to protect

01:27:11the nozzles during their transport.

01:27:13It also facilitates the circulation

01:27:15of hot water that is poured on the nozzles

01:27:17before they are tasted.

01:27:19This V-neckband was originally designed

01:27:21to meet several objectives.

01:27:23First of all, it is a way to extend

01:27:25the life of the garment which will

01:27:27keep its shape over the years.

01:27:29It also serves to pass the head

01:27:31if you wish, in case it needs to be stretched.

01:27:33In this way, it ensures a better grip

01:27:35around the neck.

01:27:37Finally, it helps to absorb sweat

01:27:39if you wear the jacket during a sports session.

01:27:41It is no longer a common practice,

01:27:43but you may one day

01:27:45fall on a jacket with a mysterious

01:27:47additional pocket on the right side.

01:27:49It turns out that this pocket

01:27:51was once used by men

01:27:53to easily access their train tickets,

01:27:55because most of them

01:27:57went to work every day.

01:27:59It allowed them to keep their buttoned jacket

01:28:01while benefiting from a pocket.

01:28:03Today, it is no longer

01:28:05a useless decoration.

01:28:07Speaking of things that we no longer use today,

01:28:09or at least not in their initial purpose,

01:28:11did you know that Pledo

01:28:13was originally a cleaning product?

01:28:15In the 1920s,

01:28:17industrialists needed a product

01:28:19that would help them clean the upholstered area

01:28:21around the coal ovens.

01:28:23The recipe for what we know today

01:28:25under the name of Pledo was therefore

01:28:27invented.

01:28:29It was made only in white,

01:28:31and was supposed to clean the bread paper

01:28:33by rolling it back and forth on the dirt.

01:28:35It was only later, in the 1940s,

01:28:37that new products intended

01:28:39to clean the bread paper were born,

01:28:41and that Pledo was redirected

01:28:43to another sector of the market.

01:28:45Although I still enjoy eating

01:28:47a good piece of toasted bread for breakfast,

01:28:49isn't it boring to have to clean the toasted bread?

01:28:51Well, not anymore,

01:28:53because I recently discovered

01:28:55that toasted bread is equipped with a slide

01:28:57or a panel at the bottom

01:28:59that allows you to easily get rid

01:29:01of all these annoying crumbs.

01:29:03It was a time when video games

01:29:05could only be used by inserting cartridges

01:29:07into the console of your choice.

01:29:09However, these small objects

01:29:11gave a lot of headaches to many doctors.

01:29:13People, especially the youngest,

01:29:15began to end up in the hospital

01:29:17after swallowing small game cartridges.

01:29:19Nintendo, the company that makes

01:29:21the majority of these devices,

01:29:23had to find a creative solution

01:29:25to avoid these accidents.

01:29:27That is why, nowadays,

01:29:29Nintendo Switch cartridges

01:29:31are voluntarily coated with special chemicals

01:29:33that leave a really unpleasant

01:29:35bitter taste in the mouth.

01:29:37Clearly, I do not recommend you

01:29:39to try and taste for yourself.

01:29:41The passenger seat seat belts

01:29:43have a fabric loop.

01:29:45When it is subjected to a strong pressure,

01:29:47the loop tightens and the excess fabric

01:29:49can cushion the passengers.

01:29:51A few extra centimeters

01:29:53can make a big difference in the event of an accident.

01:29:55But it is different

01:29:57on the driver's side.

01:29:59As the latter is close to the steering wheel,

01:30:01it is safer for him not to have this loop.

01:30:03Seat belts were invented

01:30:05in the middle of the 19th century,

01:30:07but they did not really

01:30:09begin to be used

01:30:11until the 1960s.

01:30:13Pre-collision sensors

01:30:15made the safety devices

01:30:17go to a higher level.

01:30:19By effectively predicting

01:30:21the collision of a car,

01:30:23this technology orders the seat belts

01:30:25to tighten automatically,

01:30:27to open the airbags,

01:30:29and to activate the brakes

01:30:31to reduce the impact.

01:30:33Every year, 6 million car accidents

01:30:35occur in the United States.

01:30:37That is why we must continue

01:30:39to develop safety devices,

01:30:41not only to mitigate accidents,

01:30:43but also to better protect

01:30:45passengers.

01:30:47The materials that make up the body

01:30:49have only begun to be replaced

01:30:51during the last 25 years,

01:30:53from aluminum and magnesium alloys

01:30:55to carbon fiber composites.

01:30:57These lighter materials

01:30:59not only save fuel,

01:31:01but also guarantee

01:31:03that the body offers a deformation zone.

01:31:07When a car hits an object,

01:31:09this zone absorbs the energy of the impact.

01:31:11But if this seems to cause

01:31:13more damage to the car,

01:31:15it actually protects the passengers better.

01:31:17Collision sensors are

01:31:19widely underestimated,

01:31:21and since we have been using them,

01:31:23it would be hard to imagine

01:31:25without them.

01:31:27Collision sensors were invented

01:31:29at the end of the 1800s.

01:31:31They have evolved so much

01:31:33that we no longer realize

01:31:35that we have them.

01:31:37But they are there,

01:31:39hidden under the exterior coatings,

01:31:41made up of foam or compressible plastic

01:31:43All the windows of your car are glass,

01:31:45but the windshield is designed

01:31:47to be unbreakable.

01:31:49It is sheet metal,

01:31:51so that whatever the impact,

01:31:53no shards of glass are projected

01:31:55on the front seats.

01:31:57Normal glass was used

01:31:59until the 1950s,

01:32:01as vehicles evolved,

01:32:03modifications were made

01:32:05to ensure more safety.

01:32:07Airbags now seem to have always existed.

01:32:09In fact, they were invented

01:32:11in 1968 and were

01:32:13ahead of their time.

01:32:15They then slowly gained popularity

01:32:17and eventually became

01:32:19mandatory on all cars

01:32:21from 1998.

01:32:25They have also evolved

01:32:27and are no longer limited

01:32:29to a simple airbag in the steering wheel.

01:32:31Today, they can be found

01:32:33everywhere in the car

01:32:35to ensure the safety of all passengers.

01:32:37Collision sensors

01:32:39on an on-board computer

01:32:41detect the moment when a shock occurs

01:32:43and triggers the airbags,

01:32:45which inflate in a few milliseconds.

01:32:49It can be difficult to anticipate

01:32:51the weather and the state of the roads.

01:32:53At the end of the 1960s,

01:32:55the ABS anti-skid system

01:32:57was put in place on cars.

01:33:01Before, it was used on many planes,

01:33:03whose design dated back to 1908.

01:33:05It quickly became necessary

01:33:07on all vehicles,

01:33:09ensuring better grip

01:33:11on slippery surfaces

01:33:13and better wheel control

01:33:15during braking.

01:33:17Today, the ABS has progressed

01:33:19so much that the latest versions

01:33:21provide additional detection

01:33:23in the event of strong wind.

01:33:25The speed regulator,

01:33:27invented in 1948,

01:33:29has not stopped evolving over the years.

01:33:31Today, the adaptive speed regulator

01:33:33means that when the car

01:33:35drives at a constant speed

01:33:37and detects a slower car in front of it,

01:33:39it adapts its speed to that of the previous one.

01:33:41Other variants

01:33:43make sure that the car

01:33:45stops on its own

01:33:47if the vehicle in front of it does the same.

01:33:49It is easy to forget

01:33:51to turn on the lights

01:33:53when driving for several hours.

01:33:55Automatic lights

01:33:57are becoming more and more common.

01:33:59Cameras

01:34:01determine the type of light

01:34:03in real time

01:34:05and help determine

01:34:07whether the road lights

01:34:09should be turned on or not.

01:34:11Although automatic lights

01:34:13have existed since the 1950s,

01:34:15the old models used sensors

01:34:17sensitive to light

01:34:19and were much less reliable.

01:34:21The new models can identify

01:34:23different sources of light,

01:34:25whether it is the sun,

01:34:27the direct light of a car

01:34:29It is sometimes difficult

01:34:31to make sure that no one

01:34:33is in the famous blind spot

01:34:35which causes about 400,000 accidents

01:34:37per year in the United States.

01:34:39The solar sensors

01:34:41located in the rear bumper

01:34:43as well as the blind spot

01:34:45surveillance systems

01:34:47monitor adjacent roads.

01:34:49They alert the driver

01:34:51if a vehicle is on the next lane,

01:34:53whether by flashing lights

01:34:55on the dashboard

01:34:57and thus reduce the danger.

01:34:591.6 million road accidents

01:35:01are caused by the use

01:35:03of a mobile phone

01:35:05and fatigue is at the origin

01:35:07of at least 10% of car accidents.

01:35:09The driver's attention

01:35:11monitoring system

01:35:13allows to control all this.

01:35:15It works thanks to sensors

01:35:17that monitor the movements

01:35:19of the car and the number

01:35:21of steering corrections

01:35:23to ensure that the driver

01:35:25is not well awake

01:35:27or distracted by his phone.

01:35:29It emits signals

01:35:31indicating that it is time

01:35:33to take a break.

01:35:35Tires are one of the most

01:35:37critical parts of your car

01:35:39and are closely related

01:35:41to the type of road you take.

01:35:43Many safety devices

01:35:45depend on them.

01:35:47This is why it is very important

01:35:49to ensure that your tires

01:35:51are always in perfect condition.

01:35:53It is critical when you need

01:35:55to increase or decrease the pressure

01:35:57to avoid any risk.

01:35:59The constant evolution of technologies

01:36:01ensures your safety

01:36:03on long journeys.

01:36:05The white line crossing sensors

01:36:07focus on the marking on the ground

01:36:09and ensure that the car

01:36:11stays on its lane.

01:36:13If it deviates and approaches

01:36:15a non-flashing line,

01:36:17a camera identifies it

01:36:19and signals it to the driver.

01:36:21The same method is used

01:36:23to prevent the car

01:36:25from crossing the adjacent lane.

01:36:27If it gets too close,

01:36:29it automatically adjusts the direction

01:36:31to focus the car on its lane.

01:36:33The most modern cars

01:36:35even have autonomous driving options.

01:36:37Automatic driving systems

01:36:39have moved the speed regulator

01:36:41to a higher level,

01:36:43allowing the vehicle

01:36:45to stay on its lane

01:36:47while maintaining speed

01:36:49Some devices are increasingly

01:36:51used in all car models.

01:36:53For example, night vision

01:36:55which uses thermographic cameras

01:36:57to locate pedestrians and animals.

01:36:59It integrates with the on-board computer

01:37:01and identifies objects

01:37:03based on their thermal signature.

01:37:07There are more than 1.4 billion

01:37:09cars in traffic around the world.

01:37:11And as the world population increases,

01:37:13we expect the number of cars

01:37:15to increase as well.

01:37:17Safety devices are constantly evolving.

01:37:21Infrared headlights

01:37:23will soon be used

01:37:25in bad visibility conditions

01:37:27such as storms, snow and fog.

01:37:29They will improve the driver's visibility

01:37:31in all conditions

01:37:33without affecting the other drivers' vision.

01:37:35The driver's control systems

01:37:37will soon be able to monitor

01:37:39and identify these different behaviors.

01:37:41Whether it is while driving

01:37:43or for other safety reasons,

01:37:45the cars will soon be able

01:37:47to take control themselves

01:37:49thus ensuring the safety

01:37:51of all passengers.

01:37:53The augmented reality

01:37:55headlamps, which are being developed,

01:37:57allow certain elements

01:37:59of the dashboard to be displayed

01:38:01on the headlamp.

01:38:03So, soon, all the most useful

01:38:05indications will appear

01:38:07right in front of the driver

01:38:09so that they no longer

01:38:11get out of sight.

01:38:13The headlamps will be used

01:38:15inside the cabin,

01:38:17but they will also be activated

01:38:19outside the car

01:38:21when they detect an imminent collision.

01:38:23They will cover the entire surface

01:38:25of the car to reduce the impact.

01:38:27This technology could be so advanced

01:38:29that the body would no longer

01:38:31need to be repaired.

01:38:33Future technologies should be

01:38:35so advanced that the cars themselves

01:38:37will have their own form of communication,

01:38:39not with the drivers

01:38:41or with other cars.

01:38:43Imagine cars sharing information

01:38:45when they detect roadblocks,

01:38:47road problems,

01:38:49or weather phenomena.

01:38:51All this will guarantee

01:38:53the most efficient route

01:38:55and a safer journey.

01:38:57There are a multitude of amazing things

01:38:59that you can do with products

01:39:01that you have at home

01:39:03and that are intended for other uses.

01:39:05We will explore

01:39:07some of these possibilities

01:39:09as well as everyday articles

01:39:11that fulfill other functions

01:39:13that you may not be aware of.

01:39:15Many kitchen scissors

01:39:17have a lace opening

01:39:19where the handles

01:39:21and blades meet.

01:39:23You can use it to remove

01:39:25difficult herbs such as thyme,

01:39:27rosemary, and chives.

01:39:29It saves you time

01:39:31trying to remove the leaves by hand.

01:39:33And if you are short of vases,

01:39:35you can offer roses

01:39:37or other flowers.

01:39:39Just be careful where you point

01:39:41the tip of the scissors.

01:39:43The metallic blade

01:39:45of soda cans can be turned

01:39:47so that you can slip a straw

01:39:49and thus avoid carrying the can

01:39:51in your mouth.

01:39:53This blade has also replaced

01:39:55the traction ring created

01:39:57in the early 1960s.

01:39:59You remember the latter, don't you?

01:40:01They were quite sharp and easy to remove

01:40:03and therefore posed a danger

01:40:05to your tongue

01:40:07and also to make bubbles.

01:40:09Sometimes when you buy

01:40:11a new garment,

01:40:13a small plastic bag is attached

01:40:15with an extra button

01:40:17and a piece of fabric.

01:40:19If the fabric is often used

01:40:21to repair any holes,

01:40:23it can also be used to test

01:40:25the effects of various detergents.

01:40:27On the garment,

01:40:29it is also practical

01:40:31to test the washing programs

01:40:33You can use a screwdriver

01:40:35to make a lever

01:40:37if you have trouble lifting

01:40:39or moving something.

01:40:41Some also have a handle

01:40:43of a hexagonal shape

01:40:45that fits inside a wrench.

01:40:47You can use it to increase

01:40:49the tightening and,

01:40:51once again, make a lever.

01:40:53Practical for those

01:40:55who don't have much strength

01:40:57in their arms.

01:40:59Elastics are useful

01:41:01You can wrap the elastic

01:41:03around the plug

01:41:05for a better grip.

01:41:07Mechanical stairs

01:41:09have black brushes on the sides

01:41:11for the same reason

01:41:13that there are sometimes

01:41:15yellow lines on the steps

01:41:17to dissuade people

01:41:19from getting too close

01:41:21to dangerous places.

01:41:23People don't always pay attention

01:41:25and sometimes clothes or laces

01:41:27can be dangerously close

01:41:29to each other.

01:41:31It can also prevent

01:41:33pieces of plush

01:41:35or other small items

01:41:37from falling into the gaps.

01:41:39Your jeans have several features

01:41:41that are very functional

01:41:43although a little out of fashion.

01:41:45The metal rivets around the pockets

01:41:47help secure the tension points.

01:41:49This allows them to last

01:41:51a little longer than the average

01:41:53although not all jeans

01:41:55are equipped with them.

01:41:57Originally,

01:41:59it was meant to hold a watch.

01:42:01Even though most watches

01:42:03belong to the past,

01:42:05many people still use this space

01:42:07to store coins,

01:42:09a ring or even a mini USB key.

01:42:11It may seem a little obvious

01:42:13but if you're wondering

01:42:15what all the grooves

01:42:17on a car tire are for,

01:42:19it's for road grip.

01:42:21That said,

01:42:23they are also a good indicator

01:42:25that your tires are not as deep

01:42:27and that they almost cover the road.

01:42:29It's time to change your tires.

01:42:31If you don't,

01:42:33the next time you try

01:42:35to stop suddenly at a red light,

01:42:37you may be surprised to see

01:42:39that your car has turned

01:42:41into a giant roller coaster.

01:42:43These boxes,

01:42:45often associated with Chinese restaurants,

01:42:47are designed not only to

01:42:49carry your food home

01:42:51but also to store it in the fridge.

01:42:53You don't have to worry

01:42:55about the dirty dishes.

01:42:57They were patented in 1894

01:42:59to transport freshly

01:43:01chopped oysters

01:43:03and were known as

01:43:05oyster buckets.

01:43:07They were then adapted

01:43:09to be used as food containers.

01:43:11When you're sitting in a plane

01:43:13and you look out the window,

01:43:15you may have noticed these little holes

01:43:17or, in some cases,

01:43:19a singular opening at the bottom.

01:43:21It's called an air hole

01:43:23and it's designed to equalize

01:43:25the difference in air pressure

01:43:27that accumulates between

01:43:29the pressurized cabin

01:43:31and the outside atmosphere,

01:43:33especially at high altitudes.

01:43:35It also releases humidity

01:43:37between the windows

01:43:39to prevent frost from forming

01:43:41on the windows

01:43:43and obstruct this beautiful view.

01:43:45Sorry, but you won't be able

01:43:47to draw a smiley face right away.

01:43:49The first cutter was introduced

01:43:51in 1956

01:43:53by a Japanese company.

01:43:55They were inspired

01:43:57by the squares of chocolate tablets.

01:44:01Almost all measuring ribbons

01:44:03have an empty slot

01:44:05in their metallic ends.

01:44:07It's called a nail clip

01:44:09and you can attach it to a nail

01:44:11or a screw.

01:44:13It's a practical trick

01:44:15to measure without needing

01:44:17to use a ruler.

01:44:19Hair clips have grooves

01:44:21on one of the branches

01:44:23to better hold your hair in place.

01:44:25The straight side must be at the top

01:44:27while the grooves

01:44:29must be against your head.

01:44:31They are also called bob clips

01:44:33because of the bob hairstyle,

01:44:35that is, the square cut

01:44:37that was popular in the 1920s

01:44:39although the clips

01:44:41were invented in the 19th century.

01:44:43Don't forget to remove them

01:44:45before washing your hair.

01:44:47If you've ever noticed

01:44:49the textured black dots

01:44:51on the windshield of a car

01:44:53or a bus,

01:44:55you've probably realized

01:44:57that it's not meant for decoration.

01:44:59They're called fritters

01:45:01and it's a ceramic paint.

01:45:03Their main purpose

01:45:05is to protect the window

01:45:07from ultraviolet rays.

01:45:09It also creates a rough surface

01:45:11where the adhesive can stick.

01:45:13Don't touch it!

01:45:15It's probably someone's old chewing gum.

01:45:19If you take a look

01:45:21at the bottom of a lock,

01:45:23there's a good chance

01:45:25you'll see one or two little holes.

01:45:27They're used to evacuate water

01:45:29trapped inside

01:45:31because of the rain.

01:45:33This mini drainage system

01:45:35prevents the internal system

01:45:37from rusting or freezing

01:45:39if it's very cold.

01:45:41You can put a product

01:45:43with oil inside

01:45:45to lubricate it

01:45:47and make it work again.

01:45:49If you've lost the key

01:45:51and you want to ease your frustration,

01:45:53you can scream in the holes.

01:45:55It won't open,

01:45:57but you'll feel a little better.

01:45:59Some shirts

01:46:01have a fabric buckle in the collar.

01:46:03It's used to suspend the shirt.

01:46:05The buckles would have been

01:46:07used for the first time

01:46:09because it was easy

01:46:11to simply hang them on the wall.

01:46:13In the 1960s,

01:46:15fashion was to wear

01:46:17the buttoned shirt all the way up,

01:46:19which made it all the more complicated.

01:46:21So designers started

01:46:23to put the buckle in the back.

01:46:25If the student took off the buckle,

01:46:27it meant he was

01:46:29in a stable relationship.

01:46:31Unless one of his friends

01:46:33took it off

01:46:35to make a joke out of him.

01:46:37Now everyone wonders

01:46:39with whom they go out.

01:46:43Have you ever wondered

01:46:45why coins have these little grooves

01:46:47on the edges?

01:46:49It's a vestige of the old days

01:46:51where they were more valuable.

01:46:53The smugglers could easily

01:46:55file the edges of coins

01:46:57to make new ones out of gold or silver.

01:46:59The grooves were created

01:47:01to make it much easier

01:47:03to tell if a coin was filed.

01:47:05But coins always have this detail.

01:47:07And if you ever get bored,

01:47:09you can try to count

01:47:11the number of grooves.

01:47:13Or you can watch

01:47:15another nice video.

01:47:19Crackers are holes

01:47:21to prevent them from cracking

01:47:23and breaking during cooking.

01:47:25Without these holes, steam would accumulate

01:47:27in the dough until it burst.

01:47:29If you look at the capsule

01:47:31of a soda bottle,

01:47:33it is used to seal the liquid

01:47:35and the gases so that the drink

01:47:37remains sparkling.

01:47:39The long neck of the bottle

01:47:41is designed to keep it there.

01:47:43In this way, the heat of your hand

01:47:45will only heat this part of the bottle

01:47:47instead of making the whole bottle warm.

01:47:49It is difficult to see the dishes

01:47:51when they are in the microwave oven

01:47:53because of this black gray

01:47:55on the glass.

01:47:57But if it is there,

01:47:59it is to prevent the harmful waves

01:48:01in the microwave oven.

01:48:03The lid of Faraday

01:48:05is used to protect you

01:48:07while ensuring adequate cooking

01:48:09of the food.

01:48:11Some products,

01:48:13such as chips packets,

01:48:15contain up to 43% nitrogen.

01:48:17One might think that we are sold

01:48:19to a bag half full of air.

01:48:21And yet it is quite the opposite.

01:48:23Oxygen, the gas we breathe

01:48:25in contact with the chips,

01:48:27would induce a reaction

01:48:29that keeps the food

01:48:31and prevents it from getting damaged

01:48:33during transport.

01:48:35Chips packed in an air cushion

01:48:37remain crispy and do not risk

01:48:39turning into crumbs.

01:48:41The doughnuts are hollowed

01:48:43so that the outside and the inside

01:48:45cook uniformly.

01:48:47Before the addition of the holes,

01:48:49the inside was generally fat and doughy

01:48:51and the edges were crispy.

01:48:53The marks on the sheets of paper

01:48:55are not used to write the dates

01:48:57but to fill a protective function.

01:48:59At the time,

01:49:01rats were a real problem

01:49:03in houses,

01:49:05and paper was one of their favorite food.

01:49:07Marks were used

01:49:09as a security device.

01:49:11Rats would rather nibble on the white paper

01:49:13which encompassed the part

01:49:15intended for writing.

01:49:17This hole in the stem of the doughnut

01:49:19is not there to prevent suffocation

01:49:21in case of ingestion.

01:49:23It serves to keep the candy in place.

01:49:25If there is too much water,

01:49:27it enters the hollow of the doughnut

01:49:29and, once solidified,

01:49:31keeps the candy in place.

01:49:33In this process,

01:49:35it would be more fragile

01:49:37and would come off easily.

01:49:39Vacuum cleaners have a lot of accessories

01:49:41but do we really know

01:49:43what this long brush is for?

01:49:45It is useful for dusting

01:49:47and its shape is perfectly adapted

01:49:49for cleaning frames, curtains

01:49:51or tiles.

01:49:53The brush allows you to adjust

01:49:55the shape of clothes

01:49:57but it also repels mites

01:49:59and other insects.

01:50:01Salt is not only useful in the kitchen.

01:50:03It can get rid of strong odors.

01:50:05Rubbing salt on your fingers

01:50:07after chopping garlic

01:50:09should get rid of the smell

01:50:11and it also works for shoes.

01:50:13The breadcrumbs have a secret drawer

01:50:15in the bottom

01:50:17that can be removed

01:50:19in order to clean

01:50:21the small holes.

01:50:23They are there to help you.

01:50:25If you press one of these holes,

01:50:27the chocolate will come out easily.

01:50:29When you drink a sip of coffee

01:50:31in a cup with a lid,

01:50:33the pressure in the cup decreases

01:50:35and the air tries to enter.

01:50:37The small hole on the lid

01:50:39allows the air to circulate

01:50:41and the drink can flow

01:50:43smoothly through the main opening.

01:50:45And that's not all.

01:50:47The small pressures on the top

01:50:49allow the air to circulate

01:50:51through the contents of the cups

01:50:53in order to differentiate them.

01:50:55There is a legend

01:50:57about each small pressure.

01:50:59Just look at which one is pressed

01:51:01to know what it corresponds to.

01:51:03The numbers on the label

01:51:05give us information

01:51:07about the way they were grown.

01:51:09If there are 4 numbers,

01:51:11the first one is a 4 or a 3,

01:51:13the fruit was treated with pesticides.

01:51:15If there are 5 numbers,

01:51:17the first one is an 8,

01:51:19the fruit was genetically modified.

01:51:21When you are on your way

01:51:23to your car after finishing

01:51:25and packing all your groceries,

01:51:27remember to use the hooks

01:51:29on the cart to hang the bags.

01:51:31This way, the most fragile items

01:51:33like bread, eggs or fruits and vegetables

01:51:35will not be crushed by heavier products.

01:51:37If you have no one with you

01:51:39to help you hold your tape measure,

01:51:41while you are trying to measure something,

01:51:43you just have to nail it.

01:51:45The square spoon of McFlurry

01:51:47is designed to easily mix

01:51:49the fillings with the ice.

01:51:51It hooks directly to a machine

01:51:53and starts spinning.

01:51:55The external hooks

01:51:57suck quickly because of the rain.

01:51:59You see this little hole down there?

01:52:01It is used to pour engine oil.

01:52:03This trick allows you

01:52:05to lubricate the mechanism

01:52:07and the key should spin again

01:52:09effortlessly.

01:52:11It's been two hours

01:52:13that you have been tapping

01:52:15on the bottom of the ketchup bottle

01:52:17but nothing comes out.

01:52:19Here is a little trick.

01:52:21Put the bottle diagonally

01:52:23and tap in the middle of the neck.

01:52:25In many fast foods,

01:52:27customers have small paper cups

01:52:29folded to serve ketchup or mustard.

01:52:31Ready for the scoop?

01:52:33These little ramekins

01:52:35are actually supposed to unfold

01:52:37to become real little paper plates

01:52:39that can contain much more sauce.

01:52:41All you have to do

01:52:43is hang them on the wall

01:52:45while you cook.

01:52:47Place the end of the utensil handle

01:52:49that you are using in this hole.

01:52:51It will be held above the preparation

01:52:53that is being cooked

01:52:55and will prevent splinters.

01:52:57The colored hairs of a toothbrush

01:52:59are there to tell us

01:53:01when it is necessary to change them.

01:53:03If you notice that these hairs

01:53:05are considerably pale,

01:53:07change the toothbrush

01:53:09and it will have many functions.

01:53:11First of all, it prevents water from overflowing

01:53:13if someone forgets to close the tap.

01:53:15It also allows water to evaporate faster

01:53:17allowing air to escape

01:53:19while the water flows.

01:53:21Most of the metal shutters

01:53:23have a hidden locking system

01:53:25that can save you from awkward moments

01:53:27like an open bracket.

01:53:29Do not let the strap up.

01:53:31If you lower the strap,

01:53:33the closure locks automatically.

01:53:35All thanks to these small notches

01:53:37that allow the water to flow.

01:53:39Some plastic milk cans

01:53:41have a concave part

01:53:43on one of the sides.

01:53:45If the milk spins and produces gas,

01:53:47this part of the bottle will inflate

01:53:49and the concave shape becomes convex.

01:53:51The same thing will happen

01:53:53if you put the can in the freezer.

01:53:55The solidified milk takes up more space

01:53:57than in liquid form.

01:53:59The foam bath is not only made

01:54:01to have fun and feel good.

01:54:03It also regulates the temperature.

01:54:05You can enjoy your bath longer

01:54:07with the foam bath.

01:54:09However, it only works for acrylic baths

01:54:11which are made of metal

01:54:13and lose heat quickly in all cases.

01:54:15Many cups and mugs

01:54:17have small grooves on the bottom.

01:54:19This is designed for dishwashing.

01:54:21They allow water to flow

01:54:23and thus avoid getting everywhere

01:54:25while rinsing the dishwasher.

01:54:27These grooves help to circulate air

01:54:29so that the cup does not crack

01:54:31even if the tea is boiling.

01:54:33The grooves in the cream tube caps

01:54:35are also useful.

01:54:37Most of the tubes are sealed

01:54:39with aluminum.

01:54:41It is impossible to drill

01:54:43without saying goodbye to your nails.

01:54:45These tips open all the cream tubes

01:54:47even the most resistant ones.

01:54:49The brush of the escalators

01:54:51is not used to clean and polish

01:54:53your shoes.

01:54:55Applying wax on a moving escalator

01:54:57can be complex.

01:54:59These brushes are there

01:55:01so that the bottom of a long coat

01:55:03or an evasive pant is not stuck

01:55:05between the steps.

01:55:07All tic-tac boxes are designed

01:55:09to make only one tic-tac come out at a time.

01:55:11The lid has the same shape as the candy.

01:55:13Turn the box down,

01:55:15shake it gently and open it.

01:55:17You will see that there is only one candy

01:55:19in the lid hole.

01:55:21If you usually shake the box

01:55:23until it falls directly into your mouth,

01:55:25then you do not know how to eat tic-tacs.

01:55:27Originally, the pompom on the caps

01:55:29was used to prevent sailors

01:55:31from hitting their heads

01:55:33on the ceiling of ships.

01:55:35It is your birthday today.

01:55:37You make a wish

01:55:39and blow out the candles.

01:55:41You have to cut this delicious cake

01:55:43round now.

01:55:45The guests can't wait to taste it.

01:55:47Wait a second!

01:55:49Are you sure you know how to cut it?

01:55:51Usually, people cut slices

01:55:53in the shape of a V.

01:55:55This method is the best known

01:55:57in French parties.

01:55:59Some guests will have a slice

01:56:01without icing, while others

01:56:03will have a lot of it.

01:56:05In addition, a cake is quite fragile,

01:56:07so you risk putting crumbs everywhere.

01:56:09This technique has become viral

01:56:11because it is quite practical.

01:56:13All you have to do

01:56:15is press a cutting board

01:56:17very gently on the cake.

01:56:19Now you have to cut the cake

01:56:21into the thickness

01:56:23then put the bottom part

01:56:25You can now cut this large piece

01:56:27into small pieces

01:56:29for your guests.

01:56:31Everyone will be able to eat

01:56:33the amount of cake they want.

01:56:35But no one wants small pieces

01:56:37in general.

01:56:39The rest of the cake

01:56:41will also be able to be kept longer.

01:56:43If someone still wants cake,

01:56:45just repeat the operation.

01:56:49If the cake is too small

01:56:51compared to the number of guests,

01:56:53I have a little tip

01:56:55for everyone to be served.

01:56:57Cut the cake into small cubes

01:56:59and put them in small paper trays.

01:57:01Then just put a toothpick

01:57:03in each part

01:57:05so that it does not fall apart.

01:57:07And here you are!

01:57:09You can serve this cake

01:57:11on a plate.

01:57:13If you don't have a knife

01:57:15to cut your cake,

01:57:17you can use your toothpick.

01:57:19If you do this well,

01:57:21your cake will be in perfect condition.

01:57:23It is a method that also works

01:57:25perfectly to cut cakes

01:57:27or cakes in thickness.

01:57:29Of course, it is better to use

01:57:31neutral dental floss

01:57:33if you want to avoid getting cake

01:57:35with the taste of mint.

01:57:37You hang paintings

01:57:39or diplomas on the wall.

01:57:41I have a lot of them at home,

01:57:43but they refuse to stay straight.

01:57:45If you use a single nail

01:57:47to fix frames

01:57:49it is better

01:57:51to put two nails.

01:57:53Your paintings will finally be straight.

01:57:55You also have to make sure

01:57:57that the hanging thread

01:57:59is not too long.

01:58:01If it is too long,

01:58:03a space will be created

01:58:05between the top of the frame

01:58:07and the wall.

01:58:09You can also use

01:58:11these adhesive pads.

01:58:13Just place them

01:58:15in the lower corners

01:58:17It is not a reason to say goodbye to them.

01:58:19Glue them around a flower pot

01:58:21then paint everything with a golden bomb.

01:58:23Result, a glamorous vase

01:58:25to decorate your living room.

01:58:27This project also works

01:58:29with any other vase

01:58:31or tin box,

01:58:33as long as they are the same size as your markers.

01:58:35Have you ever

01:58:37put coffee on your clothes

01:58:39while going back to your office

01:58:41from the cafeteria?

01:58:43It is very likely.

01:58:45You can also do it with both hands

01:58:47or by spear.

01:58:49These methods

01:58:51have the risk of burning.

01:58:53Recent studies have shown

01:58:55that it was the best way

01:58:57to hold your cup

01:58:59to prevent the liquid

01:59:01from overflowing.

01:59:03I bet you don't do that

01:59:05usually.

01:59:07Put your fingers in the shape of pliers

01:59:09and grab the cup from above.

01:59:11You will not burn yourself

01:59:13There are small tabs

01:59:15on the sides of your aluminum paper box.

01:59:17If you push them inwards,

01:59:19they will hold the roll in place

01:59:21while you unroll it effortlessly.

01:59:23In some shoe stores,

01:59:25shoes are sold

01:59:27with a little belt.

01:59:29Wait, don't throw it away.

01:59:31It is useful.

01:59:33If you ever wet your shoes,

01:59:35you can put them to dry on the radiator

01:59:37on this little belt.

01:59:39They will dry quickly and evenly.

01:59:41It is also useful

01:59:43if you wet your shoes

01:59:45when you go to work.

01:59:47If you like to wash and dry

01:59:49your shoes at the machine

01:59:51so that they are perfectly clean,

01:59:53you know that it can make a lot of noise.

01:59:55To avoid the sound of stones

01:59:57in the drum,

01:59:59put your shoes with their belt

02:00:01in a cloth bag.

02:00:03If you don't have a cloth bag,

02:00:05a headband will do the trick.

02:00:07You can also put an old towel

02:00:09so that they will be even cleaner.

02:00:11Just be careful not to use the towel

02:00:13in the bathroom afterwards.

02:00:15The glass cleaner

02:00:17is a very useful ingredient

02:00:19in case of emergency

02:00:21to renew your leather shoes.

02:00:23Just put a little on the shoe

02:00:25and rub it with a piece of soft and dry fabric.

02:00:27There you go,

02:00:29shiny shoes!

02:00:31Folds on the shoes?

02:00:33Don't panic.

02:00:35Fill your shoes with the fabric

02:00:37so that they regain their original shape.

02:00:39Then just put a wet towel

02:00:41on the folds and gently vaporize them

02:00:43with steam iron.

02:00:45The folds will be less visible

02:00:47or completely disappear.

02:00:49Here is a genius tip

02:00:51to keep and serve aromatic herbs.

02:00:53Cut and mix

02:00:55several types of aromatic herbs.

02:00:57Put them in a plastic bottle

02:00:59that you will put in the fridge.

02:01:01You no longer need to cut everything

02:01:03every time you cook.

02:01:05For your salad,

02:01:07just add oil, spices

02:01:09and sauce directly into the bottle

02:01:11and shake it well

02:01:13to mix all the ingredients.

02:01:15When you reheat a dish in the microwave,

02:01:17some of the food becomes burning

02:01:19while the rest is still frozen.

02:01:21You may have already tried several tips

02:01:23to solve this problem,

02:01:25but here is the classic tip.

02:01:27Put your food in the dish

02:01:29and make a hole in the middle

02:01:31to get a donut shape.

02:01:33In the microwave,

02:01:35it will heat more evenly.

02:01:37Do not put your plate in the center

02:01:39of the microwave tray.

02:01:41It is better to leave it on the outside.

02:01:43It will heat better.

02:01:45If you have to heat two dishes at the same time,

02:01:47just put a clean cup upside down

02:01:49in the microwave

02:01:51and put the second dish on it.

02:01:53That's it, it's simple

02:01:55and it saves time.

02:01:57You can squeeze a lemon

02:01:59using simple kitchen tweezers.

02:02:01Now just press

02:02:03on the tweezers on top of a bowl.

02:02:05Add a little water, sugar

02:02:07and here is a delicious lemonade.

02:02:09Prepare your popcorn in the microwave

02:02:11before watching the last episode

02:02:13of your favorite series.

02:02:15Even after 1 or 2 minutes of cooking

02:02:17in the microwave,

02:02:19there are still hard grains at the bottom of the bag.

02:02:21People eat them without paying attention

02:02:23but it's risky for the teeth.

02:02:25But fortunately,

02:02:27there is a notch at the bottom of the bag.

02:02:29Here is what you are supposed to do.

02:02:31When your popcorn is ready,

02:02:33don't open the bag right away.

02:02:35Turn the bag over and shake it vigorously

02:02:37on top of a bowl.

02:02:39All the grains that have not exploded will fall.

02:02:41Now you can enjoy

02:02:43your crumble without danger.

02:02:45If by chance you burn food

02:02:47on your plates and you want to avoid

02:02:49the fire detectors from starting,

02:02:51here is a little trick.

02:02:53One of the best ways

02:02:55to get rid of the smoke quickly

02:02:57is to use a half-wet towel.

02:02:59By holding the towel on the dry side,

02:03:01turn it over your head.

02:03:03The wet side will absorb

02:03:05very quickly the solid particles

02:03:07of the smoke.

02:03:09No need for a knife to peel a kiwi.

02:03:11Just remove the top and the bottom

02:03:13then insert a spoon in the kiwi

02:03:15to separate the fruit from the skin.

02:03:17Here is a kiwi all peeled.

02:03:19However, some people prefer

02:03:21to eat the kiwi directly

02:03:23with the skin.

02:03:25It is perfectly edible

02:03:27and very rich in fiber,

02:03:29folic acid and antioxidants.

02:03:31If the hairy side doesn't bother you,

02:03:33enjoy it.

02:03:35But don't forget to wash your kiwi

02:03:37before eating them.

02:03:39The small piece of fabric

02:03:41attached to the new clothes,

02:03:43often equipped with a button,

02:03:45is not intended to plug a hole

02:03:47in case of emergency.

02:03:49It is used to test if the fabric

02:03:51discolors or stains during washing

02:03:53The drawer located at the bottom of the kitchen

02:03:55keeps the dishes warm

02:03:57when you organize a meal

02:03:59and you have to cook several.

02:04:01The one cooked in the oven

02:04:03will transmit its heat

02:04:05to what is in the drawer.

02:04:07If you never know how many

02:04:09spaghetti to cook,

02:04:11use the hole in the middle

02:04:13of the dough cooker as a reference.

02:04:15It measures exactly one portion

02:04:17of dry spaghetti

02:04:19and when they are cooked,

02:04:21they don't only make you feel uncomfortable

02:04:23so that you can cook faster.

02:04:25They also help you clean the floor

02:04:27more easily and access the cabin

02:04:29in case of emergency.

02:04:31The small plastic disc

02:04:33located under the cap of your soda bottle

02:04:35keeps the bubbles.

02:04:37It prevents the liquid from escaping

02:04:39and keeps the gas inside.

02:04:41Don't try to clean your shoes

02:04:43with the brushes located at your feet

02:04:45on the stairs.

02:04:47They are used to mark the edges of the steps

02:04:49between the steps and the wall.

02:04:51By feeling the brush on your ankle,

02:04:53you instinctively move your leg back.

02:04:55There are several theories

02:04:57explaining why the King of Hearts

02:04:59is the only one who doesn't wear a mustache.

02:05:01One of them says that he was created

02:05:03during a poem.

02:05:05A king had four sons,

02:05:07one of whom was entirely shaved

02:05:09and he disinherited him.

02:05:11Another theory says that his mustache

02:05:13was lost due to an error

02:05:15during the reproduction of the original drawing.

02:05:17Another theory says that he is more honest

02:05:19and noble than the other kings.

02:05:21The ace of spades is bigger

02:05:23and better decorated than the others

02:05:25due to tax laws introduced in England

02:05:27around the 17th century.

02:05:29Card makers had to pay a tax

02:05:31called the right of stamp.

02:05:33They added physical stamps

02:05:35on the strongest card in the game

02:05:37to show that they had paid the tax.

02:05:39The tradition of decorating the ace of spades

02:05:41in this way has then remained

02:05:43even after the cancellation of the tax.

02:05:45The King of Hearts

02:05:47is the only one who doesn't wear a mustache.

02:05:49The King of Hearts

02:05:51is the only one who doesn't wear a mustache.

02:05:53The King of Hearts

02:05:55is the only one who doesn't wear a mustache.

02:05:57The King of Hearts

02:05:59is the only one who doesn't wear a mustache.

02:06:01The King of Hearts

02:06:03is the only one who doesn't wear a mustache.

02:06:05The King of Hearts

02:06:07is the only one who doesn't wear a mustache.

02:06:09The King of Hearts

02:06:11is the only one who doesn't wear a mustache.

02:06:13The King of Hearts

02:06:15is the only one who doesn't wear a mustache.

02:06:17The King of Hearts

02:06:19is the only one who doesn't wear a mustache.

02:06:21The King of Hearts

02:06:23is the only one who doesn't wear a mustache.

02:06:25The King of Hearts

02:06:27is the only one who doesn't wear a mustache.

02:06:29The King of Hearts

02:06:31is the only one who doesn't wear a mustache.

02:06:33The King of Hearts

02:06:35is the only one who doesn't wear a mustache.

02:06:37The King of Hearts

02:06:39is the only one who doesn't wear a mustache.

02:06:41The King of Hearts

02:06:43is the only one who doesn't wear a mustache.

02:06:45The King of Hearts

02:06:47is the only one who doesn't wear a mustache.

02:06:49The King of Hearts

02:06:51is the only one who doesn't wear a mustache.

02:06:53The King of Hearts

02:06:55is the only one who doesn't wear a mustache.

02:06:57The King of Hearts

02:06:59is the only one who doesn't wear a mustache.

02:07:01The King of Hearts

02:07:03is the only one who doesn't wear a mustache.

02:07:05The King of Hearts

02:07:07is the only one who doesn't wear a mustache.

02:07:09The King of Hearts

02:07:11is the only one who doesn't wear a mustache.

02:07:13The King of Hearts

02:07:15is the only one who doesn't wear a mustache.

02:07:17The King of Hearts

02:07:19is the only one who doesn't wear a mustache.

02:07:21The King of Hearts

02:07:23is the only one who doesn't wear a mustache.

02:07:25The King of Hearts

02:07:27is the only one who doesn't wear a mustache.

02:07:29The King of Hearts

02:07:31is the only one who doesn't wear a mustache.

02:07:33The King of Hearts

02:07:35is the only one who doesn't wear a mustache.

02:07:37The King of Hearts

02:07:39is the only one who doesn't wear a mustache.

02:07:41The King of Hearts

02:07:43is the only one who doesn't wear a mustache.

02:07:45The King of Hearts

02:07:47is the only one who doesn't wear a mustache.

02:07:49The King of Hearts

02:07:51is the only one who doesn't wear a mustache.

02:07:53The King of Hearts

02:07:55is the only one who doesn't wear a mustache.

02:07:57The King of Hearts

02:07:59is the only one who doesn't wear a mustache.

02:08:01The King of Hearts

02:08:03is the only one who doesn't wear a mustache.

02:08:05The King of Hearts

02:08:07is the only one who doesn't wear a mustache.

02:08:09The King of Hearts

02:08:11is the only one who doesn't wear a mustache.

02:08:13The King of Hearts

02:08:15is the only one who doesn't wear a mustache.

02:08:17The King of Hearts

02:08:19is the only one who doesn't wear a mustache.

02:08:21The King of Hearts

02:08:23is the only one who doesn't wear a mustache.

02:08:25The King of Hearts

02:08:27is the only one who doesn't wear a mustache.

02:08:29The King of Hearts

02:08:31is the only one who doesn't wear a mustache.

02:08:33The King of Hearts

02:08:35is the only one who doesn't wear a mustache.

02:08:37The King of Hearts

02:08:39is the only one who doesn't wear a mustache.

02:08:41The King of Hearts

02:08:43is the only one who doesn't wear a mustache.

02:08:45The King of Hearts

02:08:47is the only one who doesn't wear a mustache.

02:08:49The King of Hearts

02:08:51is the only one who doesn't wear a mustache.

02:08:53The King of Hearts

02:08:55is the only one who doesn't wear a mustache.

02:08:57The King of Hearts

02:08:59is the only one who doesn't wear a mustache.

02:09:01The King of Hearts

02:09:03is the only one who doesn't wear a mustache.

02:09:05The King of Hearts

02:09:07is the only one who doesn't wear a mustache.

02:09:09The King of Hearts

02:09:11is the only one who doesn't wear a mustache.

02:09:13The King of Hearts

02:09:15is the only one who doesn't wear a mustache.

02:09:17The King of Hearts

02:09:19is the only one who doesn't wear a mustache.

02:09:21The King of Hearts

02:09:23is the only one who doesn't wear a mustache.

02:09:25The King of Hearts

02:09:27is the only one who doesn't wear a mustache.

02:09:29The King of Hearts

02:09:31is the only one who doesn't wear a mustache.

02:09:33The King of Hearts

02:09:35is the only one who doesn't wear a mustache.

02:09:37The King of Hearts

02:09:39is the only one who doesn't wear a mustache.

02:09:41The King of Hearts

02:09:43is the only one who doesn't wear a mustache.

02:09:45The King of Hearts

02:09:47is the only one who doesn't wear a mustache.

02:09:49The King of Hearts

02:09:51is the only one who doesn't wear a mustache.

02:09:53The King of Hearts

02:09:55is the only one who doesn't wear a mustache.

02:09:57The King of Hearts

02:09:59is the only one who doesn't wear a mustache.

02:10:01The King of Hearts

02:10:03is the only one who doesn't wear a mustache.

02:10:05The King of Hearts

02:10:07is the only one who doesn't wear a mustache.

02:10:09The King of Hearts

02:10:11is the only one who doesn't wear a mustache.

02:10:13The King of Hearts

02:10:15is the only one who doesn't wear a mustache.

02:10:17The King of Hearts

02:10:19is the only one who doesn't wear a mustache.

02:10:21The King of Hearts

02:10:23is the only one who doesn't wear a mustache.

02:10:25The King of Hearts

02:10:27is the only one who doesn't wear a mustache.

02:10:29The King of Hearts

02:10:31is the only one who doesn't wear a mustache.

02:10:33The King of Hearts

02:10:35is the only one who doesn't wear a mustache.

02:10:37The King of Hearts

02:10:39is the only one who doesn't wear a mustache.

02:10:41The King of Hearts

02:10:43is the only one who doesn't wear a mustache.

02:10:45The King of Hearts

02:10:47is the only one who doesn't wear a mustache.

02:10:49The King of Hearts

02:10:51is the only one who doesn't wear a mustache.

02:10:53The King of Hearts

02:10:55is the only one who doesn't wear a mustache.

02:10:57The King of Hearts

02:10:59is the only one who doesn't wear a mustache.

02:11:01The King of Hearts

02:11:03is the only one who doesn't wear a mustache.

02:11:05The King of Hearts

02:11:07is the only one who doesn't wear a mustache.

02:11:09The King of Hearts

02:11:11is the only one who doesn't wear a mustache.

02:11:13The King of Hearts

02:11:15is the only one who doesn't wear a mustache.

02:11:17The King of Hearts

02:11:19is the only one who doesn't wear a mustache.

02:11:21The King of Hearts

02:11:23is the only one who doesn't wear a mustache.

02:11:25The King of Hearts

02:11:27is the only one who doesn't wear a mustache.

02:11:29The King of Hearts

02:11:31is the only one who doesn't wear a mustache.

02:11:33The King of Hearts

02:11:35is the only one who doesn't wear a mustache.

02:11:37The King of Hearts

02:11:39is the only one who doesn't wear a mustache.

02:11:41The King of Hearts

02:11:43is the only one who doesn't wear a mustache.

02:11:45The King of Hearts

02:11:47is the only one who doesn't wear a mustache.

02:11:49The King of Hearts

02:11:51is the only one who doesn't wear a mustache.

02:11:53The King of Hearts

02:11:55is the only one who doesn't wear a mustache.

02:11:57The King of Hearts

02:11:59is the only one who doesn't wear a mustache.

02:12:01The King of Hearts

02:12:03is the only one who doesn't wear a mustache.

02:12:05The King of Hearts

02:12:07is the only one who doesn't wear a mustache.

02:12:09The King of Hearts

02:12:11is the only one who doesn't wear a mustache.

02:12:13The King of Hearts

02:12:15is the only one who doesn't wear a mustache.

02:12:17You can use nail polish

02:12:19to create a protective seal

02:12:21or stick some objects together

02:12:23thanks to its adhesive and waterproof capacities.

02:12:25Your suit jacket

02:12:27probably has an additional pocket

02:12:29on the right side.

02:12:31This pocket was originally used by the rider

02:12:33to put coins to pay the tolls

02:12:35without having to open their jacket.

02:12:37Later, it turned out to be useful

02:12:39to put train tickets and let them pass.

02:12:41The pocket located on the left of the chest

02:12:43was used to keep the tissues clean.

02:12:45The double zippers

02:12:47located on some bags

02:12:49were used to protect them from pickpockets.

02:12:51If you put a small lock between the two zippers,

02:12:53no one will be able to open your bag

02:12:55at your whim.

02:12:57The crown of the Statue of Liberty

02:12:59has seven points, one for each continent of the world,

02:13:01according to the Americans.

02:13:03This statue has not always been green.

02:13:05It is made of copper and iron

02:13:07and was originally brown, very bright.

02:13:09Over the years,

02:13:11copper began to oxidize

02:13:13and the statue became green,

02:13:15as we know it today.

02:13:17It was initially used as a lighthouse

02:13:19for boats sailing to the port of New York.

02:13:21It served for 16 years,

02:13:23but the light it projected was not bright enough.

02:13:25We then had the idea to cover it with gold

02:13:27to make it brighter,

02:13:29but the idea was rejected by the Congress.

02:13:31The small holes at the bottom of the locks

02:13:33allow water to flow easily

02:13:35on rainy days to avoid corrosion.

02:13:37It is also the ideal place

02:13:39to add oil

02:13:41for the opening and closing.

02:13:43The best way to keep peanut butter

02:13:45is to put it upside down.

02:13:47By putting the pot in this position,

02:13:49the oil will not go up to the surface.

02:13:51On women's shirts,

02:13:53the buttons are often on the left

02:13:55because it was originally easier

02:13:57for their right-hand servants to dress them.

02:13:59Even if most people now dress themselves,

02:14:01the tradition remains.

02:14:03The buttonholes of a shirt

02:14:05are generally vertical,

02:14:07except for the top and bottom.

02:14:09The buttonholes are more common than others,

02:14:11and the horizontal hole

02:14:13is less likely to accidentally

02:14:15let the button escape.

02:14:17The tricolor toothpaste

02:14:19with red for the gums,

02:14:21white for whitening the teeth

02:14:23and blue for fresh wool

02:14:25is just a marketing trick.

02:14:27Any toothpaste has the same components,

02:14:29they are just mixed.

02:14:31The curves of a hairpin

02:14:33are not there to look pretty.

02:14:35The real purpose of this zigzag

02:14:37is to use these pins

02:14:39and to put the wavy side down.

02:14:41Your Chinese food tray

02:14:43can easily turn into a plate.

02:14:45Just open it.

02:14:47To remove a chocolate from its box more easily,

02:14:49press on the small bumps

02:14:51located around it.

02:14:53It will come out on its own.

02:14:55You can know when your bread has been cooked

02:14:57thanks to the color of the label on the bag.

02:14:59Blue corresponds to Monday,

02:15:01green to Tuesday,

02:15:03red to Thursday,

02:15:05and yellow to Saturday.

02:15:07Most trousers have pleats on the front

02:15:09for a historical reason.

02:15:11At a time when the transport of goods

02:15:13was very expensive,

02:15:15we wanted to deliver as many pairs as possible

02:15:17to each trip.

02:15:19The trousers were compressed

02:15:21to take up less space

02:15:23and it was then impossible

02:15:25to get rid of the pleats,

02:15:27which created a certain fashion.

02:15:29The hole in the elevator doors

02:15:31is a lock hole.

02:15:33We use this same tool

02:15:35for maintenance work.

02:15:37The hole in the donuts

02:15:39does not make it easier to handle,

02:15:41but it distributes the dough better.

02:15:43In the past, we only found

02:15:45the pleats on mountain bags.

02:15:47Their only purpose was to carry ropes.

02:15:49Today, these pleats

02:15:51are present on almost all bags.

02:15:53You can use them to hang a bottle of water,

02:15:55an umbrella, or a pair of sneakers.

02:15:57If you want to eat a yogurt

02:15:59but you don't have a spoon,

02:16:01you can use an aluminum lid instead.

02:16:03You can twist it into a spoon

02:16:05and you're good to go.

02:16:07There is a magnetic lock

02:16:09on the gas pipes of some gas stations.

02:16:11They are useful if you decide

02:16:13to leave with the gas gun

02:16:15still attached to the tank.

02:16:17In this case, the pipe will come off automatically.

02:16:19There is a theory explaining

02:16:21the real use of donuts on caps.

02:16:23French sailors often bang their heads

02:16:25against the ceiling of boat cabins.

02:16:27We then invented these donuts

02:16:29to support the impact.

02:16:31The small rubber bushings

02:16:33in the grooves of your tires

02:16:35are used to indicate their wear.

02:16:37When the bushing reaches the edge of the tire,

02:16:39it is time to change it.

02:16:41The hole in a donut stick

02:16:43is not a whistle,

02:16:45as many people think.

02:16:47It is used to prevent you from suffocating

02:16:49if it gets stuck in your throat.

02:16:51The tab under your rear-view mirror

02:16:53is used to prevent you from being blinded

02:16:55by the car behind you.

02:16:57The hole near the edge of your sink

02:16:59is used to avoid overflow.

02:17:01Thanks to it,

02:17:03all the excess water will be directed

02:17:05towards the siphon.

02:17:07It also allows the sink

02:17:09to empty more quickly,

02:17:11allowing the air contained in the siphon

02:17:13to escape.

02:17:15The black dots on the windshield

02:17:17of some cars are called chips.

02:17:19The black mesh that cooks

02:17:21during the manufacturing process

02:17:23helps to preserve the sealant

02:17:25by reducing the temperature

02:17:27and the optical distortion.

02:17:29The symbols on the cosmetic products

02:17:31all have a significant meaning.

02:17:33The icon representing

02:17:35a small open pot

02:17:37corresponds to the preservation time

02:17:39after opening.

02:17:41This duration is usually indicated in months,

02:17:43so it is a number and the letter M.

02:17:45The sandpaper indicates

02:17:47to consume preferably before.

02:17:49It is based on products whose lifetime

02:17:51is less than 30 months.

02:17:53The round tip indicates

02:17:55that the manufacturer pays

02:17:57for the environmentally responsible recycling

02:17:59of its packaging.

02:18:01Before using a suction cup

02:18:03to unclog a sink or toilet,

02:18:05make sure you have the right tool.

02:18:07If it is equipped with a standard

02:18:09rubber head in the shape of a bowl,

02:18:11it will be perfect for flat surfaces

02:18:13such as sinks or bathtubs.

02:18:15Those designed for toilets

02:18:17have a head with a narrower back.

02:18:19Rinsing the dish before putting it

02:18:21inside modern appliances

02:18:23determines the degree of saltiness of the plates

02:18:25and sends an appropriate jet of water.

02:18:27You just have to remove the remaining solid food

02:18:29from your plates and install them

02:18:31correctly. Your vegetable peeler

02:18:33can also help you cut

02:18:35thin slices of onion.

02:18:37This will save you time, stress and tears.

02:18:39You can also use it

02:18:41to cut cheese into slices.

02:18:43The small buttons of your jeans are called rivets.

02:18:45They were originally used

02:18:47to prevent the seams from tearing.

02:18:49In the past, these pants were

02:18:51mainly worn by miners and other workers.

02:18:53That's why they had to be very resistant.

02:18:55The tradition of rivets

02:18:57has since remained.

02:18:59Wooden belts are not made from

02:19:01any wood. Cedar,

02:19:03used for their manufacture,

02:19:05is known to repel mites.

02:19:07In addition, it releases a refreshing smell

02:19:09and is very resistant.

02:19:11These belts are therefore perfect for wearing heavy

02:19:13clothes that are more likely to be damaged

02:19:15by mites, such as coats,

02:19:17jackets or dresses, especially in wool.

02:19:19The small hole located at the bottom

02:19:21of the plane shutters allows air to circulate

02:19:23to prevent too much pressure

02:19:25from accumulating in it and causing

02:19:27the shutters to burst at an altitude.

02:19:29It also prevents the shutters from swelling

02:19:31due to the hot wool of the passengers.

02:19:33The small pocket on the side

02:19:35of your jeans, also called

02:19:37the fifth pocket, was designed

02:19:39to store a watch.

02:19:41In the 19th century, gold miners

02:19:43used these watches to keep track of time

02:19:45and the jeans were their favorite clothing.

02:19:47These expensive watches

02:19:49remained safe in this pocket

02:19:51where you can now store folded banknotes

02:19:53or a stick of lip balm.

02:19:55Some bottles of medication,

02:19:57at the expense of children,

02:19:59have strange threaded caps on each side.

02:20:01One of these sides has a normal thread

02:20:03that prevents the cap from being completely locked.

02:20:05So if you have trouble removing this secured cap

02:20:07and you prefer to use it as a normal cap,

02:20:09simply turn it over.

02:20:11Keyboards have inherited

02:20:13their strange non-alphabetic arrangement

02:20:15of the keys of the old typewriters.

02:20:17Originally, the keys were arranged

02:20:19in alphabetical order,

02:20:21but the keyboards typed so fast

02:20:23that the arms of the keys crossed

02:20:25and often blocked each other.

02:20:27Keyboard makers then decided

02:20:29to use a random order

02:20:31to slow down the speed of the keyboards

02:20:33and ensure the safety of the machines.

02:20:35The small bands on the audio headphones

02:20:37are made of an insulating material

02:20:39that protects the wires during the transition of sound.

02:20:41Two bands indicate where the sound will be distributed.

02:20:43If there are three bands,

02:20:45two of them will go to each ear

02:20:47and the third works as a grounding

02:20:49for your stereo channel or your amplifier.

02:20:51The handle of the McFlurry spoons

02:20:53is equipped with a square-shaped hole.

02:20:55This is to connect it to the machine

02:20:57that mixes the ice cream with the garnish.

02:20:59The bar of the machine slides

02:21:01directly into the spoon

02:21:03and spins it like a drill,

02:21:05then the spoon stays in the ice cream,

02:21:07which does less cleaning.

02:21:09If you see a 4-digit code

02:21:11on the label of a fruit or vegetable,

02:21:13it usually means that the producers

02:21:15have used pesticides.

02:21:17Organic products have 5-digit labels

02:21:19starting with 9.

02:21:21Genetically modified products

02:21:23also have a 5-digit code

02:21:25starting with 8.

02:21:27The best way to pour milk or fruit juice

02:21:29is to do it by putting the hole on top.

02:21:31This way, the liquid will not splash everywhere

02:21:33and it will be easier for you

02:21:35to control the pouring.

02:21:37The holes located under your keyboard

02:21:39allow you to tilt it to see the touches better.

02:21:41A flat keyboard is much less tiring

02:21:43for the wrists.

02:21:45You can use an olive spoon

02:21:47to remove all kinds of products

02:21:49from the jars, cans or bowls

02:21:51filled with liquid.

02:21:53The hole in the middle

02:21:55allows you to remove the liquid from the spoon.

02:21:57The grooves at the end of some toothpicks

02:21:59are not designed to look nice,

02:22:01but to prevent their tip from touching the table.

02:22:03The tip breaks easily

02:22:05so that it stays in the air.

02:22:07So listen carefully.

02:22:09The additional hole

02:22:11located in the upper part of the sink

02:22:13has multiple hidden functions.

02:22:15Firstly, if someone forgets to close the tap,

02:22:17the water will not overflow

02:22:19and the bathroom will not be flooded.

02:22:21Secondly, thanks to this hole,

02:22:23the water flows faster

02:22:25because it allows the air to escape,

02:22:27which promotes the flow of water.

02:22:29These two holes on the side of the converse

02:22:31are not only there to ventilate your feet.

02:22:33Of course, ventilation is important

02:22:35for all sports.

02:22:37But the second reason

02:22:39is that athletes pass the lace

02:22:41through these holes

02:22:43to have better grip.

02:22:45Donuts have a hole in the middle

02:22:47and this does not refer to the donut's top.

02:22:49It is not designed to facilitate

02:22:51handholding,

02:22:53although it can be very practical.

02:22:55It is designed in this way

02:22:57to allow mass cooking

02:22:59so that the donuts are cooked

02:23:01The mini carrots are tiny

02:23:03and unlike ordinary carrots,

02:23:05they are wet.

02:23:07Mini carrots are not special carrots,

02:23:09but just ordinary carrots

02:23:11whose skin and outer layers

02:23:13have been removed,

02:23:15then polished to make them as beautiful.

02:23:17The problem is that they cannot retain moisture.

02:23:19An ordinary carrot retains water

02:23:21inside thanks to the layers that imprison it.

02:23:23Once cut, the mini carrots dry easily.

02:23:25This is why they are generally sold

02:23:27in bags containing a little water.

02:23:29Toys shops are filled

02:23:31with Beanie Babies

02:23:33and a detail that is even more emblematic

02:23:35than their huge eyes

02:23:37is their label that says TY.

02:23:39It is a small manufacturing company

02:23:41that few people have heard of.

02:23:43The Beanie Babies appeared in 1993

02:23:45and they became incredibly popular.

02:23:47TY is the name of the company

02:23:49but it is not an abbreviation.

02:23:51It is the real name of the founder

02:23:53of the company, Ash Ty Warner.

02:23:55Most of the metallic lightning locks

02:23:57have a hidden lock inside

02:23:59to avoid embarrassing situations

02:24:01like an open handbrake.

02:24:03Don't leave the zipper

02:24:05of the lightning lock in the high position.

02:24:07When you pull it down,

02:24:09it locks automatically.

02:24:11It is thanks to its tiny grooves

02:24:13hidden under the handle.

02:24:15Almost all public toilets

02:24:17have a large space between the floor and the door.

02:24:19The reason for this total absence of privacy

02:24:21is precisely to minimize the level

02:24:23of privacy and comfort

02:24:25so that you don't stay there too long

02:24:27and that there is no queue.

02:24:29It is also easier to clean

02:24:31and safer in case of emergency.

02:24:33In a car, the headrests

02:24:35are synonymous with comfort

02:24:37while the removable headrests

02:24:39are synonymous with safety.

02:24:41If you remove the headrest from the seat,

02:24:43you will see two bars that are quite robust.

02:24:45If you ever find yourself locked or stuck

02:24:47in a car, you can get out

02:24:49by breaking the glass with these bars.

02:24:51Many cups and mugs

02:24:53have small grooves at the bottom.

02:24:55They are designed for washing machines.

02:24:57The grooves allow water to flow

02:24:59and not spill on your feet

02:25:01when you take out the cup.

02:25:03In addition, they allow air to circulate

02:25:05and the cup does not break

02:25:07even if the tea is hot.

02:25:09Almost all tape measures

02:25:11have a metal tip

02:25:13with a small notch at the end.

02:25:15You can use it to hook the meter

02:25:17to a nail or a screw

02:25:19and take measurements

02:25:21without worrying about injuring anyone.

02:25:23Sometimes this tip

02:25:25has a row of serrated points

02:25:27on one side.

02:25:29This is practical

02:25:31when you want to leave a mark

02:25:33without using a pencil.

02:25:35The door handles are generally

02:25:37made of brass, bronze

02:25:39and in some other alloys of copper

02:25:41for a good reason.

02:25:43They have an antibacterial effect

02:25:45which prevents microbes from spreading.

02:25:47They get rid of a whole series

02:25:49of germs in a few hours.

02:25:51But don't forget to wash your hands anyway.

02:25:53Supermarket carts

02:25:55have hooks for a good reason.

02:25:57You don't want to put your jacket

02:25:59in a cart next to potatoes

02:26:01and onions.

02:26:03Hang it on a loop.

02:26:05This little hook is there

02:26:07to help you better organize

02:26:09the space in your cart.

02:26:11Carts also have a super practical grid.

02:26:13When the cart is full,

02:26:15just lift the grid

02:26:17from the top of the wheels

02:26:19and the hooks on the grid.

02:26:21The tip of a pomade cap

02:26:23is not there for nothing.

02:26:25Most tubes are generally closed

02:26:27with an aluminum sheet

02:26:29and it is better to avoid opening it

02:26:31with your fingers,

02:26:33unless you are ready to say goodbye

02:26:35to your nails.

02:26:37A tip can even easily open

02:26:39a super tight tube.

02:26:41You can often find silica gel

02:26:43in different objects you buy

02:26:45to keep your shoes moist.

02:26:47So every time your shoes are a little wet,

02:26:49just put a bag of silica gel.

02:26:51People used to live with rats,

02:26:53but they like to put away

02:26:55everything they see on their way,

02:26:57including paper.

02:26:59However, rats are not able

02:27:01to put away more than the space

02:27:03on the margins.

02:27:05This black grid on a microwave

02:27:07is not just an elegant decoration.

02:27:09It is called a Faraday shield

02:27:11and it prevents the rays

02:27:13from entering the microwave.

02:27:15It also accelerates the heating,

02:27:17which allows you to taste

02:27:19the leftovers of the day before.

02:27:21It can also block telephone signals.

02:27:23So if you are tired,

02:27:25many calls,

02:27:27just put the phone in the microwave,

02:27:29but do not turn it on.

02:27:31All tic-tac containers are designed

02:27:33to distribute a tic-tac

02:27:35every time you open it.

02:27:37The lid has the same shape as the candy.

02:27:39Turn the container upside down,

02:27:41you will see that only one candy

02:27:43is stuck between the grooves of the lid.

02:27:45So if you open the container

02:27:47and shake it until

02:27:495 candies or more fall into your mouth,

02:27:51it means you have eaten

02:27:53bad tic-tac all this time.

02:27:55These small holes in the windows

02:27:57of the planes are designed

02:27:59to control the pressure in the cabin.

02:28:01They also protect the windows

02:28:03from the fog when the temperatures

02:28:05drop and rise.

02:28:07Moreover, the top of a plane

02:28:09is evenly distributed

02:28:11and the top does not deform.

02:28:13The blue hairs of a toothbrush

02:28:15indicate that it is time

02:28:17to change the toothbrush.

02:28:19As the hairs come into contact with water,

02:28:21the blue pigment, or other,

02:28:23fades away.

02:28:25So the more you use it,

02:28:27the darker the color becomes.

02:28:29The triple handle of a tic-tac container

02:28:31is there to allow two people

02:28:33to carry it more easily

02:28:35and to distribute the fuel

02:28:37The fuel hoses are often a second hole

02:28:39that must be unlocked before

02:28:41pouring the fuel.

02:28:43The passage of air will prevent it from flowing

02:28:45and there will be no more fuel waste.

02:28:47Jeans appeared for the first time

02:28:49in 1873.

02:28:51They were invented by

02:28:53Jacob Davis and Levi Strauss.

02:28:55Davis was a tailor

02:28:57who made blankets and blankets

02:28:59and Strauss was a businessman

02:29:01who, among other things,

02:29:03sold fabric.

02:29:05The jeans were made by Davis

02:29:07from denim fabric

02:29:09that he bought from Levi Strauss & Co.

02:29:11Together they patented the model.

02:29:13Blue was a standard color for denim

02:29:15which was dyed with an indigo dye.

02:29:17Blue is a tradition

02:29:19that is still often used today

02:29:21to reproduce the original appearance

02:29:23of a pair of jeans.

02:29:25Jeans also have metallic rivets

02:29:27and they are present from the beginning.

02:29:29Jacob Davis, the man who made

02:29:31the first pair of jeans,

02:29:33made the rivets in places

02:29:35where the pants are more likely to tear.

02:29:37The rivets and pockets

02:29:39to make them more solid.

02:29:41Today they have a decorative purpose

02:29:43because they are typical and traditional

02:29:45of jeans.

02:29:47Another peculiarity of jeans

02:29:49are these small pockets

02:29:51that seem useless.

02:29:53It may be true nowadays

02:29:55but years ago,

02:29:57when many cowboys wore jeans,

02:29:59the pocket was designed

02:30:01to be a jean with only 4 pockets.

02:30:03This tiny pocket,

02:30:05the pocket of the watch,

02:30:07two large pockets at the front

02:30:09and a single pocket at the back.

02:30:11Many light closures

02:30:13have the letters YKK engraved.

02:30:15Yoshida Manufacturing Shareholding Company.

02:30:17It is an abbreviation

02:30:19of the name of the company

02:30:21which can be translated as Yoshida S.A.

02:30:23This Japanese company

02:30:25is the largest manufacturer

02:30:27of light closures in the world.

02:30:29It is about half of all

02:30:31light closures in the world.

02:30:33That's why you see them more often

02:30:35than any other brand.

02:30:37These little white golf balls

02:30:39are full of rivets.

02:30:41It turns out that they are not there by chance.

02:30:43At first, golfers played with a smooth ball.

02:30:45Over time, the ball began to suffer

02:30:47shocks and damages.

02:30:49But also, it began to travel

02:30:51much further.

02:30:53The reason is aerodynamics.

02:30:55The rivets allow the air to circulate

02:30:57around the ball,

02:30:59which takes it further.

02:31:01So the idea was adopted

02:31:03and the balls were equipped

02:31:05with rivets all around

02:31:07which allows them to travel

02:31:09longer distances.

02:31:11For all those days

02:31:13when you barely have time

02:31:15to have your breakfast,

02:31:17there is an easy way

02:31:19to enjoy a quick and tasty meal

02:31:21that will also prevent you

02:31:23from doing the dishes later.

02:31:25It is made of plastic,

02:31:27which allows you to pour water

02:31:29or milk directly into it.

02:31:31So you no longer need

02:31:33to use a bowl.

02:31:35You pour the liquid into it

02:31:37and shake it.

02:31:39Some packages also have

02:31:41a demarcation line

02:31:43to indicate the amount of liquid

02:31:45to be put in the package

02:31:47for a given quantity.

02:31:49The next time you have to

02:31:51change apartments,

02:31:53you can easily transport it

02:31:55with integrated handles.

02:31:57In fact, they are not really handles,

02:31:59I admit it.

02:32:01They are simple holes

02:32:03inside the cardboard

02:32:05on the sides.

02:32:07But if you slip your hands in there,

02:32:09you will surely notice

02:32:11that the boxes become

02:32:13much easier to carry

02:32:15than to lift.

02:32:17With the multiplication

02:32:19of online reading tools

02:32:21you will be able to read

02:32:23a lot more.

02:32:25And I do not blame you.

02:32:27But nowadays, libraries

02:32:29offer much more services

02:32:31than those you are used to,

02:32:33except for the free

02:32:35DidiBook and audio books.

02:32:37Some of them offer

02:32:39various evening classes

02:32:41or can give access

02:32:43to online courses.

02:32:45You can even sign up

02:32:47for a reading club,

02:32:49or my favorite restaurant

02:32:51to have my dinner to take away.

02:32:53But if the containers are not

02:32:55completely closed,

02:32:57the return home can turn out

02:32:59to be a culinary experience,

02:33:01if you see what I mean.

02:33:03Especially for the car mats.

02:33:05Some cars are equipped

02:33:07with a hook near the central console,

02:33:09next to the driver's seat.

02:33:11This popular support,

02:33:13for 20 years,

02:33:15was originally designed

02:33:17to protect the car mats

02:33:19from being overturned.

02:33:21I am almost sure

02:33:23that there is an umbrella

02:33:25somewhere in your car.

02:33:27But if I asked you

02:33:29where you put it,

02:33:31you would probably answer

02:33:33the trunk, of course.

02:33:35But is it really

02:33:37the best place to put it?

02:33:39Wouldn't you like to have

02:33:41an umbrella at hand

02:33:43as soon as you get out of the car?

02:33:45You can see it in the driver's door panel,

02:33:47which perfectly fits the umbrella.

02:33:49You have to admit that it is

02:33:51an important element to consider

02:33:53when looking for your next car,

02:33:55especially if you live

02:33:57in an older place.

02:33:59Every time I plan to travel

02:34:01to a new place,

02:34:03I like to have local plans

02:34:05on my phone at all times.

02:34:07As you can't always predict

02:34:09the quality or price of the Internet

02:34:11in foreign countries,

02:34:13you can easily access

02:34:15all the essential places

02:34:17during your next city trip,

02:34:19even if you don't have any mobile data.

02:34:21The same goes for Google Translate.

02:34:23The mobile app allows you

02:34:25to download a language

02:34:27that allows you to use it

02:34:29offline.

02:34:31Here's another interesting tip

02:34:33if you're more of a traveler.

02:34:35If you have an iPhone,

02:34:37send the airline code

02:34:39and flight number by SMS.

02:34:41You can also use the flight information

02:34:43like the boarding gate

02:34:45or if your plane is on time.

02:34:47Pocket lamps are one of those

02:34:49objects that we tend to use

02:34:51in case of emergency.

02:34:53For example, when there is a power outage

02:34:55or when you have to go to the attic

02:34:57to find an old photo album.

02:34:59If you find yourself in a delicate situation

02:35:01and the pocket lamp runs out of battery,

02:35:03take a look at its base

02:35:05under the battery spring.

02:35:07Some models contain a spare bulb

02:35:09If you're the kind of person

02:35:11who likes to get up early in the morning

02:35:13but the rest of the house

02:35:15likes to do the dirty work in the morning,

02:35:17there is a way to use your microwave

02:35:19to prepare breakfast without

02:35:21waking everyone up.

02:35:23It turns out that some devices

02:35:25have a built-in smart function

02:35:27that allows you to get rid

02:35:29of all the noises

02:35:31and all the annoying beeps.

02:35:33The many times I drove

02:35:35on local roads,

02:35:37I did some research

02:35:39and I discovered that they indicate

02:35:41the location of the fire exits.

02:35:43In general, the spotlights are offset

02:35:45on both sides of the main road

02:35:47and the offset side indicates

02:35:49if the fire exit is on the left

02:35:51or on the right of the road

02:35:53to better help the firefighters

02:35:55in their mission.

02:35:57The next time you get out of your car

02:35:59and forget to close all the windows,

02:36:01you won't be able to go back.

02:36:03Just try this.

02:36:05If you find yourself in an awkward situation

02:36:07to miss a voice message,

02:36:09know that there is a way

02:36:11to delete it or re-record it,

02:36:13which will save you a useless hassle.

02:36:15Stay online after you have

02:36:17recorded the message

02:36:19and type in the numeric sign

02:36:21or the asterisk star

02:36:23and you will be able to

02:36:25go back to your car.

02:36:27If you are in a situation

02:36:29where you can't go back

02:36:31to your car,

02:36:33you can use the numeric sign

02:36:35or the asterisk star

02:36:37to access the voice message menu.

02:36:39Additional instructions

02:36:41must be provided

02:36:43so that you can decide

02:36:45what you will do with the recording.

02:36:47Bagels are becoming more and more

02:36:49popular nowadays as an option

02:36:51for breakfast or snacks

02:36:53because they are very good

02:36:55and versatile.

02:36:57The problem is that I prefer

02:36:59that my bagel is grilled

02:37:01on one of the two sides.

02:37:03Have you ever wondered

02:37:05why the bagels are almost

02:37:07all round?

02:37:09It turns out that it is the only shape

02:37:11that cannot fall completely into the hole.

02:37:13Any other shape,

02:37:15especially corners,

02:37:17can be turned over

02:37:19and the lid upside down.

02:37:21Here is a good idea

02:37:23if you like to get a little massage

02:37:25when you take a shower.

02:37:27On most shower heads available

02:37:29there is a shower hose

02:37:31once you have unscrewed it.

02:37:33If you clean this part from time to time

02:37:35you will see that the water pressure

02:37:37increases considerably.

02:37:39You may be able to save

02:37:41this wool sweater

02:37:43that you accidentally put

02:37:45in the washing machine

02:37:47and which shrunk by three sizes.

02:37:49Go to the shower

02:37:51and take a bottle of aftershave.

02:37:53Pour it into a bathtub

02:37:55with cold water

02:37:57and it should help to relax

02:37:59the fibers of wool

02:38:01and to release them.

02:38:03Not to mention the pleasant smell

02:38:05that it will then release.

02:38:07You may have to do some research

02:38:09before you can use this trick

02:38:11safely.

02:38:13But for you to know,

02:38:15there are modern laptop computers

02:38:17equipped with drainage pipes.

02:38:19Hum, you heard right.

02:38:21Precisely when you accidentally

02:38:23spill coffee on it.

02:38:25Make sure you don't shake

02:38:27the laptop computer

02:38:29after you have spilled the liquid

02:38:31so that the system can work properly.

02:38:35Listen to this.

02:38:37Over the past centuries

02:38:39manufacturers have started to add grooves

02:38:41on the edges of coins to fight

02:38:43against counterfeiters.

02:38:45In the past, they filed the edges of coins

02:38:47and used the metal thus obtained

02:38:49to hit new coins.

02:38:51But with the grooves, it has become

02:38:53a rejected piece.

02:38:55These small cylinders on the charging cables

02:38:57are called self or ferrite cores.

02:38:59They are made of magnetic iron oxide

02:39:01which helps to prevent

02:39:03electromagnetic interference.

02:39:05In other words, they protect your device

02:39:07against short circuits.

02:39:09You must already know that these small pockets

02:39:11on the jeans were used to store the watches.

02:39:13But what about the little metal buttons?

02:39:15They actually help to hold the fabric together.

02:39:17Manufacturers place these buttons

02:39:19where the jeans can tear

02:39:21to prevent movement or tension.

02:39:23These little holes on some jeans

02:39:25were designed to attach additional material.

02:39:27So you can put laces

02:39:29and sneakers there

02:39:31if you don't want to put them in your jeans

02:39:33or have to carry them by hand.

02:39:35This little dot next to the camera

02:39:37on your iPhone is a microphone.

02:39:39It allows you to get a good quality sound

02:39:41when you take a video.

02:39:43The Spotlight function of your Mac

02:39:45can be used not only for

02:39:47fast file and application search

02:39:49but also as a calculator.

02:39:51You just have to type a mathematical operation

02:39:53that you have to solve.

02:39:55Spotlight also uses the data

02:39:57from the internal dictionary.

02:39:59Grab any word in the search bar

02:40:01and you will get information about it.

02:40:03You just bought a new bottle of oil?

02:40:05You remove the lid

02:40:07and you see a small operculum

02:40:09that you can tear by pulling on a loop.

02:40:11Remove it, but don't throw it in the trash.

02:40:13Replace it upside down

02:40:15to control the flow by pressing your finger on it.

02:40:17The tiny spots on the keys

02:40:19F and J of the keyboard

02:40:21help your fingers to navigate

02:40:23on this one while typing.

02:40:25When your indexes are on these spots,

02:40:27you know exactly where the other letters are.

02:40:29The brushes on the sides of the escalators

02:40:31are not used to tighten your shoes

02:40:33but to ensure your safety.

02:40:35These nylon hairs prevent your laces

02:40:37and your clothes from penetrating

02:40:39the escalator wheels,

02:40:41which would not be good news.

02:40:43Most of the American door handles

02:40:45are made of brass.

02:40:47This type of metal is effective against microbes

02:40:49because bacteria cannot multiply

02:40:51as much on such surfaces.

02:40:53It is not for nothing that public toilets

02:40:55do not offer total privacy.

02:40:57The space under the door is designed

02:40:59to make you want to get out of there

02:41:01as soon as possible.

02:41:03Thanks to this design,

02:41:05there is much less waiting.

02:41:07You can use a plastic lid

02:41:09of a soda can like under a glass.

02:41:11It has the perfect shape to hold your drink

02:41:13so that it does not get wet.

02:41:15Do not turn the lid upside down.

02:41:17Simply place it on the table

02:41:19in the same way as it was on the cup.

02:41:21If you are stuck in a car in an accident

02:41:23and you cannot open the doors,

02:41:25you can use the bars of the removable lid

02:41:27to break the glass and get out.

02:41:29Do you see these small plastic discs

02:41:31under the bottle caps?

02:41:33This little thing helps to preserve

02:41:35the vacuum inside the bottles,

02:41:37which keeps the soda in a sparkling state.

02:41:39You have probably already watched

02:41:41a microwave at least once in your life.

02:41:43Yes, it's sparkling.

02:41:45But why did the designers

02:41:47make the doors so dark?

02:41:49This black gray is actually necessary

02:41:51to block electromagnetic fields.

02:41:53The tiny dots on the padlocks

02:41:55next to the lock hole

02:41:57are designed to evacuate moisture

02:41:59if water enters inside.

02:42:01In addition, if the lock blocks

02:42:03or starts to rust,

02:42:05you can pour oil through this hole

02:42:07to solve the problem.

02:42:09Some cups have a small groove

02:42:11below the bottom.

02:42:13It helps water to flow

02:42:15and prevents it from accumulating

02:42:17when the cup is in the dishwasher.

02:42:19At first, sunglasses were not invented

02:42:21to look in its direction.

02:42:23These glasses were used

02:42:25during expeditions in the Arctic.

02:42:27A huge amount of snow

02:42:29can make you blind,

02:42:31just like a prolonged flashlight.

02:42:33To protect the eyes,

02:42:35we invented these unique glasses.

02:42:37You can use any t-shirt

02:42:39not only to dress up,

02:42:41but also as a protective layer

02:42:43for your luggage,

02:42:45but simply your clothes

02:42:47around your suitcase

02:42:49and don't waste time or money

02:42:51packing it in plastic.

02:42:53The button at the back of your shirt

02:42:55keeps your tie under the collar.

02:42:57But people no longer use it

02:42:59because ties are now thinner.

02:43:01However, this button remains

02:43:03decorative.

02:43:05This is the first function

02:43:07of the tie.

02:43:09It was created in Europe

02:43:11in the 17th century

02:43:13to tighten the collar.

02:43:15In this way,

02:43:17people protected their neck

02:43:19from the strong wind.

02:43:21Then, they got used

02:43:23to this part of the outfit

02:43:25and made it an essential

02:43:27accessory of the bourgeoisie.

02:43:29Soft pompoms on caps

02:43:31were invented several centuries ago.

02:43:33The pompoms are made of cedar wood

02:43:35because it contains a lot of natural oils

02:43:37that repel mites

02:43:39that like to eat your clothes.

02:43:41The spherical shape of the pompoms

02:43:43allows the light to spread evenly.

02:43:45In addition, such pompoms

02:43:47are cheaper and easier to make.

02:43:49Have you ever found these pieces

02:43:51of fabric in new clothes?

02:43:53These are not only spare parts,

02:43:55but also samples of tests

02:43:57to be used before washing.

02:43:59You can put this piece

02:44:01in the washing machine

02:44:03and wash your clothes.

02:44:05Your ceiling fan

02:44:07has two modes of operation,

02:44:09summer and winter.

02:44:11You have to find the switch

02:44:13that is on it.

02:44:15Push it up to activate

02:44:17the winter mode

02:44:19and down for the summer mode.

02:44:21In summer mode,

02:44:23the fan pushes the air down.

02:44:25In winter,

02:44:27it pulls the air up.

02:44:29In reality,

02:44:31it is used to unclog the sink.

02:44:33For the toilets,

02:44:35you have to use another special tool.

02:44:37The drawer under your oven

02:44:39is not used to store pans and pans.

02:44:41You can put dishes there

02:44:43that will be kept warm

02:44:45by the heat of the oven.

02:44:47It is useful if you are waiting

02:44:49for friends who are late for dinner.

02:44:51You take out a packet of popcorn

02:44:53from the microwave

02:44:55after you have heated it.

02:44:57Shake the packet on a plate

02:44:59and all the grains will fall through the hole.

02:45:01Almost everyone

02:45:03uses travel pillows

02:45:05in an incorrect way.

02:45:07In general, you put the two ends forward

02:45:09and you put your head back.

02:45:11But try to put the pillow in the other direction.

02:45:13The bow must be under your chin

02:45:15and the two ends must be directed

02:45:17backwards.

02:45:19Put your head forward

02:45:21and this position will be much more comfortable

02:45:23for your neck.

02:45:25The blue part

02:45:27indicates the South Pole

02:45:29and the red part

02:45:31the North Pole.

02:45:33The two poles work simultaneously

02:45:35and increase the traction.

02:45:37Thanks to the perfect design

02:45:39of airplanes,

02:45:41most of them can glide over a long distance

02:45:43even without an engine.

02:45:45In 1268,

02:45:47Roger Bacon made the first written mention

02:45:49of the use of telescope lenses

02:45:51for optical purposes.

02:45:53At that time,

02:45:55magnifying lenses inserted into mounts

02:45:57were popular for reading in Europe and China.

02:45:59So we still wonder

02:46:01if the West stole the idea from the East

02:46:03or vice versa.

02:46:05If you find yourself in the middle of the sea

02:46:07without food,

02:46:09you can try to fish.

02:46:11You can use anything as a bait.

02:46:13Your phone, your watch, your keys.

02:46:15And you can use your laces as a fishing line.

02:46:17Tie the bait and throw it in the water.

02:46:19And good luck catching the fish

02:46:21that will steal your phone.

02:46:23It will be a big fish.

02:46:25You can turn the lid of the soda can

02:46:27and use it to hold

02:46:29a straw in place.

02:46:31The blue half of the rubber

02:46:33was not created to erase the ink.

02:46:35At the beginning,

02:46:37the blue part erased the inscriptions

02:46:39and drawings on the thick paper.

02:46:41The red part could not do it

02:46:43without leaving a trace,

02:46:45but the blue part

02:46:47was perfectly satisfied with this task.

02:46:49Try to do it not from the bottom

02:46:51but from the side,

02:46:53along the glue line.

02:46:55Your post-it will stay glued to the wall

02:46:57longer this way.

02:46:59Have you ever wondered

02:47:01what these two holes

02:47:03in the stick of the laces are for?

02:47:05Well, when you put the stick

02:47:07in hot syrup,

02:47:09the liquid flows inside.

02:47:11This creates a solid attachment

02:47:13for the plastic.

02:47:15How many of the following things

02:47:17do you really know the usefulness

02:47:19or the meaning?

02:47:21Let's see how you do it.

02:47:23On the back of most beauty products,

02:47:25you will find a small open skin symbol

02:47:27which is there to indicate

02:47:29the useful life span of the item.

02:47:31For example,

02:47:332M means 2 months

02:47:35and 30M means 30 months after opening.

02:47:37Have you always thought

02:47:39that these symbols corresponded

02:47:41to the number of uses of the product?

02:47:43Oops!

02:47:45I don't really know how this one

02:47:47was discovered,

02:47:49but the cartridges of the Nintendo Switch

02:47:51have a hidden safety feature.

02:47:53It will leave you a bad taste in your mouth.

02:47:55Although non-toxic,

02:47:57the Denatonium Benzoate

02:47:59coats the cartridge of a bitter,

02:48:01peppered and bitter substance

02:48:03to prevent people from swallowing them.

02:48:05Being one of the most bitter flavors

02:48:07known to humanity,

02:48:09it is commonly used to prevent people

02:48:11from consuming things

02:48:13that are harmful to the environment.

02:48:15But who discovered this?

02:48:17The labels of bread of different colors

02:48:19use a system of color codes

02:48:21to indicate the day the bread was cooked.

02:48:23The rule is usually the following.

02:48:25A blue label for Monday,

02:48:27a green for Tuesday,

02:48:29a red for Thursday,

02:48:31a white for Friday

02:48:33and a yellow for Saturday.

02:48:35Apparently, no bread is cooked

02:48:37on Wednesday or Sunday.

02:48:39The German chocolate cake

02:48:41is the most delicious in the world.

02:48:43But its name has nothing to do

02:48:45with its country of origin.

02:48:47It is named after an American baker

02:48:49named Samuel German

02:48:51who made this delicious snack

02:48:53in 1852.

02:48:55Anyway, it's still delicious.

02:48:57And no, you won't have mine.

02:48:59Energizing drinks

02:49:01seem to be the magic potion

02:49:03for athletes.

02:49:05All these bright colored drinks

02:49:07filled with electrolytes

02:49:09The problem is that

02:49:11we are not all athletes.

02:49:13Your exercise habits,

02:49:15the duration and intensity

02:49:17of your training

02:49:19all add up

02:49:21to know if you need

02:49:23this extra push.

02:49:25Maybe it's better to just

02:49:27hold on to some water.

02:49:29This space under the nozzles

02:49:31is probably useful.

02:49:33But what is it?

02:49:35In fact, it is used to protect

02:49:37to reduce the quantity of products.

02:49:39Did you notice that they are rarely broken

02:49:41compared to those sold in sachets?

02:49:43In addition to that, this space

02:49:45also helps these delicious noodles

02:49:47soften more uniformly and more quickly.

02:49:49Could you have guessed that?

02:49:51Are you nostalgic of the time

02:49:53when your teachers wrote notes

02:49:55in the margins of your notebooks?

02:49:57Well, you are probably far from knowing

02:49:59that this was not at all the original function

02:50:01of these margins.

02:50:03They actually protected the notebooks from rats.

02:50:05The vilain habit of nibbling on the paper

02:50:07of the books is fleshed out,

02:50:09so that a margin has been added

02:50:11so that the writings are safe

02:50:13if the little animals are hungry.

02:50:15Or maybe the rats also needed paper

02:50:17to do their homework?

02:50:19Above the interior of the car doors,

02:50:21you will generally find a handle.

02:50:23Its function is not only

02:50:25to be able to hang on

02:50:27when the driver drives like a rally driver.

02:50:29These handles are actually very useful

02:50:31so that people with reduced mobility

02:50:33can easily get in and out of the vehicle.

02:50:35The driver's door is often

02:50:37devoid of handles,

02:50:39but one of the possible reasons

02:50:41is that the steering wheel itself

02:50:43can function as a handle if necessary.

02:50:45However, even with a handle,

02:50:47it would probably be difficult

02:50:49to slip into this small space.

02:50:51Watch how your zipper

02:50:53is positioned the next time

02:50:55you put on pants,

02:50:57shorts or skirts.

02:50:59If it is in a high position,

02:51:01you could have the bad luck

02:51:03that it opens at the wrong time.

02:51:05Push the small tab of the zipper

02:51:07down and it will lock automatically.

02:51:11Goodbye embarrassing moments!

02:51:15These lines on the curtains

02:51:17are not there to look pretty.

02:51:19They are designed to break the curtain.

02:51:23After breaking the upper part,

02:51:25you can use it as a support

02:51:27for your curtain so that it

02:51:29does not fall on the table

02:51:31and does not get dirty.

02:51:33Don't forget to put the pointy end

02:51:35up.

02:51:41An error with a pencil

02:51:43and you erase with the pink side

02:51:45of the eraser.

02:51:47With the pencil, however,

02:51:49you turn the eraser to use

02:51:51the blue side, right?

02:51:53In reality, this damages the paper

02:51:55and the blue part is also

02:51:57used to erase thicker papers

02:51:59like the canson or when the pink side

02:52:01can not do the job properly.

02:52:03It's crazy all that we discover

02:52:05on seemingly simple objects.

02:52:09You really need your dose

02:52:11of video games but your internet

02:52:13is down? Google is there for you!

02:52:15Instead of panicking,

02:52:17press the space bar when you see

02:52:19the little pixelated dinosaur next to

02:52:21impossible to connect to the internet

02:52:23or no internet access.

02:52:25This little video game

02:52:27has become a very popular game.

02:52:29But be careful,

02:52:31it's addictive.

02:52:33By the way,

02:52:35where is my phone?

02:52:37During the coldest months,

02:52:39it is normal to put a hat

02:52:41to prevent your head from freezing

02:52:43and this pompom on the top

02:52:45was supposed to be the way

02:52:47to get rid of all this extra textile.

02:52:49In reality, it is the French sailors

02:52:51who owe their existence.

02:52:53To prevent them from knocking

02:52:55on the bottom lintels of the ship,

02:52:57they used warnings that their heads

02:52:59were a little too close to the ceiling.

02:53:01The design has evolved

02:53:03to become what we know today

02:53:05and that's how these cute little pompoms

02:53:07ended up on our hats.

02:53:09Be careful of any

02:53:11advertising for a watch

02:53:13and you will notice that the time displayed

02:53:15is always 10h10.

02:53:17In addition to looking a bit like a smile,

02:53:19the manufacturer's name is generally

02:53:21written just below 12h.

02:53:23This allows you to attract

02:53:25more attention to it.

02:53:27Did you also find it weird

02:53:29that all the watches display the same time?

02:53:33The leather piece

02:53:35in the shape of a lozenge

02:53:37on the backpacks is not just

02:53:39a weird decoration.

02:53:41It is there to attach your dirty shoes

02:53:43or other accessories.

02:53:45The backpacks are made for the outside

02:53:47and with so many pockets to contain

02:53:49it is possible to attach

02:53:51potentially dirty things

02:53:53to the outside of the bag

02:53:55rather than the inside.

02:53:59Pouring milk from a brick

02:54:01can sometimes cause accidents

02:54:03but it is this simple trick

02:54:05that will disconcert you.

02:54:07Turn the brick over

02:54:09and pour it this way.

02:54:11It may seem weird

02:54:13but you will never have

02:54:15this glue-glue effect again.

02:54:19Pulling plastic film

02:54:21and ending up with the entire roll

02:54:23of the box can be exasperating.

02:54:27Instead of getting angry,

02:54:29here is something that probably escaped you.

02:54:31There are small cardboard tabs

02:54:33on the sides

02:54:35that you can push to hold the tube inside

02:54:37which facilitates the extraction

02:54:39of the film by sliding it.

02:54:41Magic!

02:54:43Elevators have many tricks.

02:54:45You probably know some

02:54:47like pressing the floor button twice

02:54:49to turn it off

02:54:51or pressing the door button

02:54:53and the floor button to go directly.

02:54:57But what about this little secret hole

02:54:59in the outside door?

02:55:01Is it used by spies

02:55:03or secret agents?

02:55:05Actually, it is just a hole

02:55:07so that the people in charge of the maintenance

02:55:09can open the door and repair the device

02:55:11in case of problems.

02:55:13Too bad for the secret agents

02:55:15but now you know what it is used for.

02:55:17The next time

02:55:19you are in a plane,

02:55:21look above each window

02:55:23and you may notice small triangles

02:55:25above some of them.

02:55:27They are used to indicate

02:55:29to the crew the best places

02:55:31to see the wings of the plane

02:55:33through the window.

02:55:35Sitting between the wings

02:55:37automatically puts you in the center of the plane

02:55:39and offers the most comfortable way

02:55:41if you have air sickness.

02:55:43Remember this during your next flight.

02:55:49The mechanical stairs brushes are really great

02:55:51to remove the dirt left on your shoes.

02:55:55But they are not there for that.

02:55:57These hairs are an important security element.

02:55:59The wide clothes,

02:56:01the laces and the lanyards

02:56:03can be sucked into the machine

02:56:05when they are too close to the sides.

02:56:07The role of the small brushes

02:56:09is to tickle you

02:56:11or to make a loud noise

02:56:13against the fabric.

02:56:15It serves as an alert

02:56:17so that you move away from the edge

02:56:19and that you do not see

02:56:21what the inside of the machine looks like.

02:56:23And if you think it's a spider

02:56:25climbing on you,

02:56:27it's because it works.

02:56:29That's all for today.

02:56:31See you next time!

Category

Transcript

Recommended