Vous Voyez Un Flash de Lumière Bleue Sur Une Montagne ? Il Est Déjà Trop Tard

Sympa

Si vous voyez un jour un éclair bleu soudain sur une montagne, vous voudrez peut-être vous préparer — parce qu'il est déjà trop tard ! ⚡🏔️ Ce phénomène étrange se produit juste avant un puissant éclair et est causé par un champ électrique intense qui se forme dans l'air. Les randonneurs et alpinistes qui assistent à cette lueur rapportent souvent que leurs cheveux se dressent sur leur tête — la façon qu'a la nature de dire : « Courez ! » 🏃‍♂️💨 Mais la partie effrayante ? Il n'y a généralement pas le temps de s'échapper une fois que l'éclair apparaît. Les scientifiques étudient encore comment prédire ces frappes de manière plus précise, mais pour l'instant, le meilleur conseil est de s'allonger et de s'éloigner de tout métal. Donc, si vous êtes jamais en hauteur et remarquez une lueur bleue inquiétante... peut-être ne restez pas pour l'admirer !  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

00:00If nature had its own movie, it would be a mixture of avatars and interstellar, and I'm not kidding.

00:07How else to explain something as surreal as avalanches emitting a blue light or pink lakes?

00:14The fact is that these are not synthesis images, and I will show you how the Earth manages to achieve this.

00:20In October 2024, a guy was lucky enough to be in the right place.

00:26A cold night, and he was able to film a blue avalanche.

00:30Well, it was mostly white, but it quickly emitted a blue light by devaluing the mountain.

00:36Scientists do not know exactly how these blue avalanches occur, but they have a few hypotheses.

00:44Part of the mystery comes from triboluminescence, a light produced by rubbing or breaking an object.

00:51This can happen in different circumstances, for example with ice structures.

00:57It is friction that produces the phenomenon, as when two objects rub against each other.

01:04We then see small sparkles appear. It is a cold light.

01:10This means that it does not come from heat, but simply from pressure or movement.

01:16Sometimes, when the ice cracks or breaks under the effect of pressure, it can produce a small electric charge.

01:23When something disturbs the ice blocks, making them crack, it triggers a reaction.

01:29The trapped ions are charged particles, and when they are suddenly released, they are put into motion.

01:35This important release of energy is at the origin of lightning. In this case, a blue glow, or a kind of flash.

01:43All this happens at an incredible speed, and it is therefore very rare to witness this phenomenon.

01:50In June 2024, the Americans witnessed a massive appearance of goats.

01:55This only happens every 13 or 17 years. Goats spend most of their life cycle underground.

02:01When they are still nymphs, they can spend several years feeding on roots.

02:06Some species can spend up to 17 years underground before being ready to surface and officially become adults.

02:13But in 2024, 13-year-old and 17-year-old goats appeared at the same time.

02:19And since 13 and 17 are the first numbers, this event only occurs once every 220 years.

02:26Forests have become incredibly noisy. Indeed, the goats can be found singing anywhere, at a sound volume ranging from 80 to 120 decibels.

02:36They usually sing in groups, which explains why the noise is so powerful.

02:41One person who attended this event said that she had screamed with all her might in the forest.

02:48She couldn't hear herself.

02:50When the goats come out of the ground, the males vibrate their abdomen to attract the females.

02:55With millions of insects singing in chorus, it was a real natural symphony.

03:00Some people in the region believed that these goats were jumping and talking about infestation.

03:10In the south, in Senegal, in Africa, there is a unique lake.

03:15Upon arrival, you could have the impression of leaving a spaceship and landing on an unknown planet.

03:21After all, have you ever seen pink water?

03:24Lake Redba, or Lake Rose, as the inhabitants call it, has become famous all over the world for its particular color.

03:32And yes, you can swim there if you want.

03:35But know that the water is extremely salty.

03:38Lake Redba is known to be one of the saltiest lakes in the world, with a salinity rate of about 40%.

03:46And in case you're wondering why the water is pink, I assure you that this is not supernatural.

03:52It's actually due to the high levels of salt.

03:55The algae known as Dunaliella Salina is responsible for this pink hue.

04:00These algae produce red pigments that absorb sunlight, giving the lake its bright pink color.

04:07But if you want to admire the lake when it is the brightest, you have to go there during the dry season, between the months of November and June.

04:15The other months, the rainwater dilutes the pigments, and the color is much less vivid.

04:20You can also find a pink candy lake in Western Australia.

04:24It has also been crowned as the 10th most supernatural site in the world.

04:29Lake Hillier has the shape of a footprint and is more than 550 meters long.

04:34Its pink color really stands out next to the dark blue ocean that is next to it.

04:42Hey, look over here. You have an idea of what it is.

04:46Try to guess. Okay, it looks like a river, doesn't it?

04:49Yet it doesn't look like flowing water.

04:52When the inhabitants saw this for the first time, they didn't know what it was.

04:56So, to make things easier, they simply called it the Sand River.

05:02It was a good guess, but it turns out that it is more or less an optical illusion.

05:07It's not sand, but it's not exactly water either.

05:11In arid environments, it is indeed quite rare for hail to fall.

05:16And when it happens, you can then see thousands and thousands of floating hail.

05:21To put it simply, hail is only frozen rain that falls in the form of small ice cubes.

05:27It looks pretty magical, doesn't it?

05:33Isn't it crazy that something as beautiful as the aurora borealis is the result of a violent encounter?

05:39Yes, the aurora borealis are actually caused by solar storms.

05:44Here's how it works.

05:46The sun, this giant gas ball, sometimes ejects pieces of plasma into space.

05:52When this plasma moves away from the sun, we talk about solar storms.

05:56These storms cross space, passing near Mercury and Venus, before reaching Earth.

06:02When these violent storms hit the Earth's magnetic shield, an amazing phenomenon occurs.

06:08The particles from the sun are trapped by the magnetic field.

06:12They collide with the atoms and molecules of the Earth's atmosphere,

06:17which creates auroras, especially near the north and south poles.

06:21From the Earth, these lightnings look like colorful flashing lights in the sky.

06:27But that's not really what's going on.

06:29If you zoom in, you'll see millions of tiny lightnings that follow each other at a dizzying speed.

06:36The aurora borealis also emit sounds.

06:39It's a mixture of gurgling, crackling, and rumbling, like a strange radio signal.

06:44Here's the noise a solar storm makes as it crashes into our atmosphere.

06:49Thor, does that ring a bell?

06:51I imagine he lives inside the natural phenomenon we're going to talk about now.

06:55Sometimes, when a volcano erupts, it can be accompanied by huge thunderbolts.

07:01Scientists then talk about volcanic lightning.

07:04And they wonder why it happens.

07:07One of their hypotheses is that when a volcano erupts, it projects debris into the atmosphere.

07:13These charges then react with other charges already present in the air, which can cause lightning.

07:19Pretty cool, right?

07:21The first time someone witnessed such a phenomenon was during a Vesuvian eruption in 1979 AD.

07:31One more thing, rainbows.

07:33Of course, we have the rainbow in the shape of a semicircle.

07:37It's the most common.

07:39But if you're lucky, you might one day see a circular rainbow.

07:43They usually occur at high altitudes, where the horizon line doesn't cut the rainbow in half.

07:50Oh yes, and there's also the possibility of a lunar rainbow.

07:54It's an extraordinary spectacle.

07:56It usually occurs during full moons, when the light from our satellite is at its maximum.

08:01What we see then is a white arc following the outer edge of the moon.

08:06A truly breathtaking phenomenon.

08:09NASA Jet Propulsion Laboratory, California Institute of Technology

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