Imaginez si la Lune et le Soleil échangeaient leurs places—les choses deviendrait vraiment folles ! Avec la Lune à la position du Soleil, notre planète serait plongée dans une obscurité glaciale, car la Lune ne peut pas fournir la chaleur et la lumière dont nous avons besoin. D'un autre côté, si le Soleil prenait la place de la Lune, la Terre serait brûlée par une chaleur intense, rendant la vie telle que nous la connaissons impossible à soutenir. Les marées seraient également bouleversées, puisque la force gravitationnelle du Soleil est beaucoup plus forte que celle de la Lune. En gros, tout le climat de notre planète et les systèmes de vie seraient jetés dans le chaos ! Animation créée par Sympa.
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Musique par Epidemic Sound https://www.epidemicsound.com
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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
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FunTranscript
00:00What if we lived in a world where the moon and the sun exchanged their places?
00:06Yes, yes, I know what you're thinking.
00:09The consequences would be huge and catastrophic.
00:12But here's an interesting perspective.
00:14What if we survived in spite of everything?
00:17What would our life look like in this new world?
00:20And what would happen in the solar system?
00:22We're going to find out.
00:26Let's start with the moon.
00:27Did you know that it is the moon that causes the tides on Earth?
00:31Do you know this phenomenon that makes the ocean move forward and backward
00:34as if it were playing a beach volleyball game?
00:36We owe this to the gravitational force of our satellite.
00:40And thanks to the moon, the rotation of the Earth remains stable.
00:44It's pretty important if you don't want to end up like Uranus,
00:47who turns on its side.
00:49Poor little Uranus.
00:51In addition, it also serves as a shield,
00:53protecting us from some of the most harmful cosmic rays,
00:56asteroids and space debris.
00:59Like a real bodyguard.
01:02And without our satellite,
01:04we might not even exist to enjoy the good weather and make jokes.
01:08Some scientists think that the moon played a crucial role
01:12in the development of life on Earth.
01:14Without its gravitational attraction,
01:16our climate would be incredibly erratic.
01:19And according to them,
01:20the moon would even have redistributed water on our planet.
01:23And we all know what water means to life.
01:26As for the sun, we all know how important it is.
01:30It provides light, heat and energy to all planets.
01:34But like any good host on a party,
01:37the sun can sometimes be a little too...
01:39intense.
01:40Never forget that this is an extremely powerful and massive star
01:44with a surface temperature approaching 540 degrees Celsius.
01:50If we don't have our ozone layer,
01:52we would all burn instantly.
01:55The distance between Earth and the sun is about 150 million kilometers.
02:00Scientists have taken this distance
02:02and transformed it into a unit of measurement,
02:05an astronomical unit, or UA.
02:08The closest distance to which the Earth could approach the sun
02:12without being completely destroyed is about 0.9 UA.
02:17On the other hand, if we move too far away,
02:19more than 1.2 UA,
02:21our planet would turn into a snowball.
02:24So we were very lucky.
02:28In addition, the distance between Earth and the moon is about 0.02 UA,
02:34or 3.602 42 kilometers.
02:37It's really super close.
02:40Now that we know the importance of the sun and the moon
02:43and how much their position affects our world,
02:46let's try to exchange them.
02:48The result can't be that bad.
02:51First of all, let's imagine for a moment
02:53that the sun is in place of the moon.
02:55You probably already know what would happen to us.
03:00The intense heat and the sun's radiation
03:02would be like the worst sauna in the world.
03:05The temperature on Earth would increase super fast.
03:08Any form of life would instantly turn into a pile of ashes.
03:14But the destruction wouldn't stop there.
03:16The atmosphere and the oceans would be swept away by the solar winds,
03:20leaving the planet exposed and vulnerable to radiation
03:23and particles coming from the sun.
03:26It would be like a huge space hair dryer,
03:29at full power, blowing everything on Earth at once.
03:33Forget the melting of the ice caps,
03:35the entire planet would be nothing but a huge puddle.
03:40But this is a hypothesis based on science.
03:43What a nuisance.
03:44Now, let's imagine that we survived in one way or another
03:47to this disaster.
03:49For example, with the help of a super advanced technology
03:52that would prevent us from getting burnt.
03:55First of all, even if our planet managed to survive,
03:58the situation would still be pretty horrible
04:01because the sun would continue to emit
04:03much more heat and energy than the moon.
04:06And then, unlike the moon,
04:08which goes through periods of darkness,
04:10the sun has a constant source of energy
04:13thanks to nuclear fusion.
04:15So, at least, we wouldn't have to worry about getting cold,
04:18but we would sweat abundantly in our sleep.
04:23Of course, all this heat would have serious consequences
04:26on our ecosystems.
04:28Plants and animals should adapt to survive
04:31and we would see major changes
04:33in the way life works on Earth.
04:36Imagine the confusion of nocturnal animals.
04:39Without the moon,
04:40they would have no idea how to navigate and hunt.
04:44So, what would we do in this excessively hot new world?
04:48Well, maybe we would build very sophisticated greenhouse
04:51that would trap all this heat.
04:53Or we would use large mirrors
04:55and other reflective surfaces
04:57to regulate the amount of light the Earth would receive.
05:02Then, we have the gravity of the sun.
05:05We said earlier that the gravitational force of the moon
05:08is exactly what it takes to stabilize the Earth's orbit.
05:11So, if we replaced it with a very big star,
05:14things would get pretty crazy.
05:16We would witness extreme changes in the seasons,
05:19the climate,
05:20and all kinds of things related to the weather.
05:23Our daily life would be a bit like
05:25trying to dance on a foot during an earthquake.
05:29The Earth would start spinning on itself extremely fast.
05:32Our days would be shorter,
05:34our nights longer,
05:35and it would be chaos for working hours and birthdays.
05:39Is there a way to correct this?
05:42Hypothetically,
05:43we could use gigantic spaceships
05:46or other technologies
05:48to artificially adjust the Earth's orbit and rotation.
05:51For example,
05:52by launching rockets or rocket launchers
05:55that would slowly push our planet
05:57towards a more stable and coherent new orbit.
06:02But that's not all.
06:03All this gravity would affect our tides in a spectacular way.
06:07We would have waves so high
06:09that surfers would need diving bottles
06:12to practice their sport.
06:14And imagine yourself
06:15piloting a boat in the middle of a hurricane
06:18while rowing.
06:22The Moon mixes nutrients in the ocean
06:24and is a great help to marine life.
06:27But if we exchanged the Sun and the Moon,
06:30these rich and full of life waters
06:32would disappear very quickly.
06:34The ocean would become a soup without life,
06:36with nothing but seaweed
06:38and plankton to keep us company.
06:40We would have to eat seaweed sandwiches
06:44and drink water to survive.
06:46And let's be realistic,
06:47no one would want a world without sushi.
06:52So, what to do?
06:54We could try to create artificial tides
06:57or imitate the gravitational pull of the Moon on the ocean.
07:02For example,
07:03by using pumps or other mechanisms
07:05that would move large volumes of water
07:07and create a tide effect.
07:09Or we could try to help marine life
07:11adapt to the new ocean,
07:13less rich in nutrients.
07:14Maybe by developing pisciculture or aquaculture.
07:20Finally, let's not forget radiation.
07:22The Sun is a real radiation plant.
07:25It could seriously disrupt our health
07:28and our electronic devices.
07:30Do you think your phone is fragile?
07:32Imagine what it would become
07:34during a huge solar eruption.
07:38We would therefore need a very advanced protection technology.
07:42Materials capable of resisting
07:44temperatures higher than the strongest of red peppers
07:48and powerful enough magnetic fields
07:50to deflect charged particles.
07:52Oh yes, and tons of sunscreen.
07:56In short, if we replace the Moon with the Sun
07:59and if we miraculously manage
08:01to avoid the big disaster,
08:03our world would be completely different
08:05from the one we know.
08:06But the Earth would not be the only one
08:08to feel these effects.
08:10What would happen to the rest of the solar system?
08:15First, if the Sun,
08:17with its powerful gravitational attraction,
08:19replaced the Moon,
08:21the orbits of other planets would be seriously disrupted.
08:25Our neighbors would be projected in all directions
08:27like self-tapping sticks.
08:31And they would also suffer from the burning personality of the Sun.
08:35Like us, they would have to face radiation
08:38and charged particles.
08:41Finally, the magnetic field of the Sun is incredibly powerful
08:45and if it took the place of the Moon,
08:47the other planets would be forced to dance to its rhythm.
08:50This would cause electric storms everywhere,
08:53auroras and other completely crazy effects.
08:58And what would happen to the Moon itself?
09:00Alas, its reign in the center of our solar system
09:03would not last very long.
09:05It is very likely that it would start orbiting around the Sun
09:08and be swallowed up by the latter
09:10or that it would simply fly away from us.
09:15So there you go,
09:16our little cosmic farce went terribly wrong.
09:19But it was fictitious.
09:21And we can be grateful that this scenario
09:23is physically impossible.
09:25So let's continue to enjoy the Moon and the Sun,
09:27which give us life at ideal distances.