Il y a encore certains endroits sur Terre qui restent un total mystère, et nous ne sommes même pas sûrs qu'ils existent réellement ! Par exemple, il y a la légendaire ville d'Atlantide, que les gens cherchent depuis toujours — certains disent qu'elle est cachée sous l'océan. Ensuite, il y a l'Œil du Sahara, une formation en spirale massive dans le désert qui pourrait avoir été le site d'un impact de météorite ou même les ruines d'une ancienne ville. La forêt amazonienne est un autre mystère ; au cœur de celle-ci, il y aurait des tribus non contactées et des temples cachés. Même à notre époque moderne, des lieux comme le mont Roraima en Amérique du Sud semblent appartenir à un autre monde, avec leurs sommets plats enveloppés de brume. Ainsi, même avec toute notre technologie, certains endroits gardent encore leurs secrets ! 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
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00:00There is a mysterious island that appears and disappears as if by magic.
00:05Just like Schrödinger's cat, Schrödinger's island exists and does not exist at the same time.
00:10Officially, it is called Sandy Island, and it has appeared on maps, but it has never existed in reality.
00:18Australian scientists decided to solve the mystery once and for all,
00:23by embarking on the trail of this unspeakable archipelago.
00:26But when they reached the available coordinates, they only found waves of an infinite blue,
00:32as if the island was playing hide-and-seek with them.
00:35This story dates back to 1876.
00:38A whaler crossing the region reported the presence of an island.
00:42The one who saw it said it was more than 24 kilometers long, from north to south,
00:47and about 5 kilometers wide, or about the size of Manhattan, not at all tiny.
00:53But every time researchers went to the region, they found nothing.
00:57In 1974, an official mission from New Caledonia
01:02declared that Sandy Island simply did not exist, and therefore excluded it from all maps.
01:08Everyone then continued to live their lives,
01:11until it was noticed that the island appeared on Google Earth in the form of a black spot.
01:16In 2012, another Australian expedition went there to try to get an explanation.
01:23Finally, they wrote down the funeral homage of the lost island, and clarified the situation for all curious.
01:29First of all, in the 19th century, mapping was not what it became later.
01:34It was easy to go wrong in the coordinates.
01:37Then, there is the fact that the region is very active on the volcanic level.
01:42It is likely that lava has cooled down and created a kind of raft.
01:46Let us now imagine that the whaler passed through there,
01:49that he saw the volcanic raft, and that he believed, from afar, that it was an island.
01:54This is of course only a supposition.
01:58Humans have ventured very far around the world,
02:01and it may have seemed, at one point, that we had explored every nook and cranny of our planet.
02:07But when Mount Liko appeared on Google Earth,
02:10scientists suddenly became very enthusiastic.
02:13This wonder hidden north of Mozambique is not an ordinary tropical forest.
02:18It is nestled inside a volcano.
02:20Determined to confirm the existence of this mysterious forest,
02:24the experts have gathered a team of high-level scientists and specialists from all over the world.
02:30The trip to Mount Liko was not easy.
02:33An impressive vertical rocky ascent stood between them and the forest.
02:38But after six years of planning and preparation, they were finally ready to take up the challenge.
02:44Once there, they noticed that the site was even more beautiful than they had imagined.
02:50The place looked like a perfectly maintained garden.
02:53The forest seemed unique, very different from other tropical forests.
02:58There were incredibly large caterpillars and dangerous-looking ones.
03:02And they even found ancient skins and evidence of an intact human ecosystem.
03:07Oh!
03:09Terra incognita means unknown land.
03:12One of the largest unknown territories, but in the process of unveiling,
03:15is the one located under the ice cap of Antarctica.
03:18Under the snowy surface hides an entirely new world,
03:21with canyons, watercourses and lakes that scientists are currently working on mapping.
03:27We can't help but wonder if there really is liquid water under the frozen surface of Antarctica.
03:33Yes, it is possible.
03:35Water can exist in a liquid state thanks to pressure,
03:38and also thanks to the heat emanating from the interior of the Earth.
03:41Thus, we find wonders like the famous Vostok Lake.
03:45We don't see it, but the Vostok Lake is right here.
03:49Located in eastern Antarctica, it is located under four kilometers of thick ice.
03:54This huge lake has an area of about 12,500 square kilometers.
03:59We were only able to discover it with the help of cutting-edge technologies such as seismic probes and radars.
04:04According to scientists, this lake has probably existed for about 15 million years.
04:11Bhutan is known to be, among others, the happiest country in all of Asia.
04:16But it has long kept a hidden treasure,
04:18one of the highest unclimbed mountains in the world,
04:21the Gankar Puensum.
04:23For your information, Bhutan is nestled in the glorious mountains of the Himalayas.
04:27Climbing enthusiasts were therefore very enthusiastic when they discovered a mountain still virgin.
04:32Imagine that you are the first person to climb an unexplored summit.
04:36This will certainly guarantee you a place in the Guinness Book of Records.
04:40It is a Bhutanese law that has preserved this mountain for a long time.
04:44For the inhabitants of the region, its summit is a sacred site,
04:47surrounded by mystery and legend.
04:50According to one of their beliefs, the sacred character of climbing a mountain
04:54does not lie in reaching its summit,
04:56but in truly communicating with nature.
05:00It must be admitted that Westerners see things differently.
05:05If you find yourself in New York,
05:07do not miss visiting the Agloe General Store.
05:10It will take you a while to get around the Catskills,
05:13but you will end up finding this magnificent and grandiose nothing at all.
05:16Agloe is one of the most famous paper cities in America,
05:19that is to say a fake city.
05:21But its history is different from that of Sandy Island.
05:24The city of Agloe never existed, and it was not a mistake.
05:28The cartographers have an old method to prevent plagiarism.
05:31They add fake cities to their maps to find out if someone has copied their work.
05:35What they did not expect was that this practice degenerates completely.
05:40It is said that one day, in a gas station,
05:43a man bought a map with the city of Agloe on it.
05:46This person then decided to open a store in this place
05:50and to call it the Agloe General Store.
05:52According to the rumor, this owner would have been prosecuted by the authors of the map.
05:57Anyway, all this lasted a few years,
06:00then it became a national joke.
06:02Americans come from all over the country
06:05to take a picture of the welcome sign of the fake city.
06:09And then there is the island of Bermeja, located in the Gulf of Mexico.
06:13This bizarre island appears on many maps of the 16th and 17th centuries.
06:17It was probably drawn by Spanish explorers.
06:21Of course, its exact location varies from one map to another.
06:24Its very name sometimes appeared in a different form.
06:28Vermeja.
06:29But we were sure of its existence.
06:31The island of Bermeja appeared for the last time on a Mexican map from 1921.
06:37And then, poof!
06:39It disappeared forever.
06:41People started to wonder.
06:43Did the island sink?
06:45Was it destroyed?
06:46In 2009, three official missions were launched to search for the island.
06:51High-tech technologies were used to explore the Mexican seabed,
06:56but Bermeja remained untraceable.
06:58The researchers then came up with a few hypotheses.
07:01Let's take a look at one of them.
07:03The island would have been invented by explorers of the time
07:05to deceive their enemies in their quest for lands and treasures.
07:08It seems plausible.
07:11Let's take a look at Rio de Janeiro.
07:13In the past, the city was full of informal territories.
07:16These places are known as slums, or favelas.
07:20They are like mini-cities inside the big city.
07:23Some favelas are known to be particularly disadvantaged.
07:26The inhabitants do not benefit from the same advantages as other citizens,
07:30such as the sewage system and the collection of waste.
07:33These slums developed so rapidly
07:36that the government did not have time to follow their evolution.
07:39Today, it is usually the inhabitants themselves who name the streets,
07:43and they manage with what they have at their disposal.
07:46One of the largest slums in Brazil is located in Rio de Janeiro,
07:50La Rocinha.
07:51It was only recognized as a neighborhood by the local government in the 1990s.
07:57Our own ocean floor is less mapped than Venus, Mars and the Moon.
08:02In fact, 95% of our oceans are still unexplored.
08:06Strange, isn't it?
08:08We have the necessary technology,
08:10which consists mainly of ultrasonic surveys,
08:14that is, sending sound waves to the bottom of the ocean
08:18and recording what they send back to us.
08:20One of the main advantages of a more in-depth mapping of the seabed
08:24would be a better knowledge of the dangers that threaten us,
08:28such as earthquakes, tsunamis and volcanic eruptions.
08:32In addition, we still know so little about marine life
08:36that it could give us a glimpse of the true dynamics of our aquatic ecosystems.