00:00One day, you walk in the street with a mask attached to an oxygen mask.
00:05There's no clouds in the sky.
00:07It's been several months that there's no clouds in the world.
00:10You notice a young girl who has a bad breath.
00:13You give her a mask so that she can take a breath.
00:17Then someone suddenly crie,
00:18METTEZ-WO A L'ABRI!
00:20You hear a big sifflement,
00:22and you see a sort of invisible force
00:24who arrache the trees from the ground
00:26and replace the cars who are garés.
00:30You hide in the house close.
00:33A glacial wind and powerful
00:35All these strange phenomena are due to the atmosphere
00:39which is inversed.
00:41To understand what would happen
00:43if the atmosphere of the Earth change so radically,
00:46we must first understand what is an atmosphere.
00:49In simple terms,
00:50it's a cover of air that envelop our planet.
00:53It heats up,
00:54protects and allows us to breathe.
00:56The atmosphere is composed of five main layers.
01:00The troposphere,
01:02the stratosphere,
01:03the mesosphere,
01:04the thermosphere
01:05and the exosphere.
01:06The troposphere is the most heavy layer.
01:08It represents about 80% of the total mass of the atmosphere.
01:12The clouds,
01:13the water and the particles of water
01:15fly in this first layer.
01:17It contains more oxygen than the other layers
01:19and exerts on us the most powerful pressure.
01:23In fact,
01:24all the air around us has a weight.
01:26At the ground,
01:27this weight is about 15 pounds per square.
01:30The air envelopes all the material objects,
01:33but we don't feel these 15 pounds per square,
01:35or PSI,
01:37because our internal pressure is equal to this weight.
01:39The air is dispersed in the atmosphere and on the ground.
01:43Plus we climb,
01:44the atmospheric pressure and the oxygen levels are low.
01:48For example,
01:49the alpinists,
01:50during the ascension of a high mountain,
01:52use two bottles of oxygen
01:53to allow their bodies to adapt to the change of air.
01:57In the planes,
01:58the pressure is artificial,
01:59so that the passengers feel at ease at the landing,
02:02at the landing,
02:04and during the duration of the flight.
02:06The air the most saturate
02:07and, in the same time,
02:09the most lourd
02:10are in the first layer.
02:12But in an inverse atmosphere,
02:14it would be the most far away from us.
02:16The next layer is the stratosphere.
02:18She plays the role of a wire.
02:20The stratosphere is made of ozone
02:22which absorb the major part
02:24of the solar rayon rays
02:25and prevents it to reach the ground.
02:27In other words,
02:28the solar rayons rays
02:29are filtered by the stratosphere.
02:31They lose their deadly properties
02:33and our planet is heated
02:35without being threatened.
02:38Then comes the mesosphere.
02:39It is in this layer
02:40that the temperatures are the most low.
02:42The atmospheric pressure is low,
02:45but the air is enough dense
02:46to burn the meteorites.
02:49The thermosphere follows the mesosphere.
02:51She is attached to the rayon of the Sun.
02:53The temperature is at about 2000 degrees Celsius,
02:56so about a half and a half more high
02:58than in a volcano.
02:59The last layer is the exosphere.
03:02It is the last frontier of our atmosphere.
03:04After that, it is the space.
03:06The pressure is so low
03:08that the gas molecules
03:08get up and go to the distant stars.
03:12Let's see how things happen
03:13in an ordinary atmosphere.
03:16The rayons of the Sun
03:17illuminate the exosphere
03:19where there is almost nothing happens.
03:21They heat up then the thermosphere
03:23and traverse the cold atmosphere.
03:25The light of the Sun
03:27will flow through the ozone layer
03:29in the stratosphere.
03:31Then, its rayons
03:32franchisent the most low and dense
03:35the troposphere
03:36and reach the ground.
03:38Let's see how everything
03:40would work in an inverse atmosphere.
03:43The troposphere
03:44with all the clouds,
03:45the water and oxygen
03:46will rise up.
03:48The clouds of the Sun
03:49will burn all the humidity.
03:50The clouds will disappear
03:52from the sky.
03:54Then, the rayons of the Sun
03:55will be warm
03:56slightly
03:57through the ozone layer.
03:59The stratosphere
04:00will absorb all the radiations.
04:02The rayons will then
04:03traverse the cold atmosphere
04:05and reach quickly
04:07the surface of our planet.
04:08The thermosphere
04:10and the exosphere
04:10have practically
04:11no effect on the rayons.
04:14If our planet
04:15had an inverse atmosphere
04:16in the atmosphere,
04:17the sea would be
04:18installed at large scale.
04:20All the clouds
04:20of the rain
04:21would be dispersed
04:21in the upper layers.
04:23All the humidity
04:24of the Earth
04:25would start to evaporate
04:26and accumulate
04:27in the exosphere
04:28and the thermosphere.
04:29We would then
04:30have a new troposphere.
04:32It would be filled
04:33with gas,
04:34particles of water
04:35and water.
04:36The ancient troposphere
04:38which would be now
04:39all up,
04:40would lose its weight
04:41and would be transformed
04:41into an exosphere.
04:44But what would happen
04:45then of the oxygen?
04:46The more it goes up,
04:47the pressure is diminishing
04:48and less there is
04:49oxygen.
04:50But in the inverse atmosphere
04:51there would be
04:53less oxygen
04:53and less pressure
04:54near the surface of the Earth.
04:57At the beginning,
04:58people would have the impression
04:59to find out
05:00on the Everest.
05:02Many would lose
05:03the knowledge
05:03or would be taken
05:04of violent vertiges.
05:05D'autres
05:06would have a strong migraine
05:07and would feel
05:08bad because
05:09of the dilation
05:10of the vessels
05:10But what would happen
05:12to people
05:12who have the habit
05:14of climbing in high mountains?
05:15They would adapt
05:16to the Earth more easily.
05:18All the others would
05:19have the same,
05:20but more slowly.
05:21And when people
05:22feel comfortable
05:23in such conditions,
05:25they would start to
05:26take advantage.
05:27We would feel
05:28less resistance
05:29to the air.
05:30It would be
05:30a bit like the void
05:31in space.
05:32The cars would
05:34run faster
05:35and consume less
05:36less energy.
05:37People would create
05:38trains
05:38to be moving
05:39at the speed of the sound.
05:41We would be
05:42less tired
05:42when we would be
05:43running.
05:44But at the same time,
05:45the avions would fly
05:46much more slowly
05:47because they would,
05:48they would,
05:48they would,
05:49they would,
05:49they would,
05:49they would not fall
05:51long and they would always be
05:52beautiful.
05:53Instead of having
05:54bad weather,
05:54we would be confronted
05:55at the mountains.
05:57Today,
05:58these powerful
05:59glass winds
05:59circulate in the
06:00top of the atmosphere.
06:02They fall
06:03on the edge
06:04of Everest
06:04and represent a
06:05grave danger for the
06:06alpinists.
06:07When the clouds of the sun
06:08heat up the air,
06:10this one
06:10wakes up and
06:11finds the cold winds
06:12that push
06:13the warm air
06:13even higher.
06:15They then turn
06:15into the mountains.
06:17This kind of wind
06:18falls at 112 km
06:19per hour.
06:20It can easily
06:21get rid of a tree
06:22or a roof
06:23or a roof.
06:23It would be necessary to build
06:25houses
06:25and solid walls
06:26to survive
06:27this calamity.
06:28But in the end,
06:30the surface of the Earth
06:31would be
06:31and push the currents
06:32to the top.
06:33In other words,
06:35even if the atmosphere
06:36would be put on top
06:37on top,
06:37everything would come
06:38to its place
06:39soon or later.
06:41It may be possible
06:42in a few hundred
06:43or millions of years.
06:45In any case,
06:47the laws of physics
06:47and nature
06:48will bring our planet
06:49to its previous state.
06:51But all the living creatures
06:52will probably not live
06:54quite long
06:54to be a witness.
06:56But what would happen
06:57if the atmosphere
06:58of the planet
06:59was constantly returned?
07:00It is not probable
07:01that this is happening
07:02on Earth,
07:02but there is in the solar system
07:04a space object
07:05where the atmosphere
07:06is inversed.
07:07All the solid elements
07:08which are found
07:09are evaporation
07:10and are still
07:10while the atmosphere
07:12gets deeper
07:12and becomes more dense.
07:14Ainsi,
07:15the Earth and the Earth
07:16of this space
07:16will stop
07:17from the Earth.
07:18This strange
07:19object celeste
07:20is Pluton,
07:21the ancient planet.
07:23The average distance
07:24between Pluton
07:25and the Sun
07:25is of about
07:265,8 milliards
07:28of kilometers.
07:29The orbit of Pluton
07:30is elliptical,
07:31that is oval
07:32and inclined
07:33compared to
07:34the other planets.
07:36When Pluton
07:37comes to the Sun
07:38of the Earth
07:39it receives a little
07:39heat.
07:40This heat is then
07:41enough to transform
07:43the surface glass
07:44in gas.
07:46Plus this gas
07:47s'entend,
07:47plus it
07:48se réchauffe.
07:49It is quite strange
07:50because on Earth
07:51it is the inverse.
07:53Plus the air
07:53is high,
07:54plus it is cold.
07:56Imagine now
07:58a world
07:58that has no surface
07:59but only an atmosphere.
08:02It is Jupiter,
08:03the largest planet
08:04of our system
08:05and which is
08:06composed of gas.
08:07It is composed
08:08of 90%
08:09of hydrogen,
08:10the 10%
08:11remaining
08:12are essentially
08:12composed of helium.
08:14Jupiter
08:15conserve all
08:16its gas
08:16thanks to
08:17its power
08:18gravity.
08:19And more they are
08:20close to the center,
08:21more their concentration
08:22is important.
08:23If a large spaceship
08:24tried to get
08:25to the surface
08:26of Jupiter,
08:27it would need
08:28much time
08:29to reach the planet.
08:30But in reality,
08:32it would be impossible
08:33to reach this center
08:34because the weight
08:36of the environment
08:36would be fatal.
08:39Saturn
08:39has a similar structure.
08:41The gravity
08:42of the gas
08:42of this planet
08:43is so strong
08:44that it is turning
08:44its waves,
08:45which are made
08:46into pieces of comet
08:47and asteroids.
08:50This
08:50air
08:51atmospheric
08:52on our planet
08:53is ideal for all
08:54creatures living.
08:55For millions of years,
08:57the evolution
08:57creates
08:58organisms
08:58able to adapt
08:59to these atmospheric conditions
09:02a good thing,
09:02n'est-ce pas ?
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