This audio describes a journey through the Earth's layers, starting from the surface and progressively delving deeper. The Earth is likened to an onion with several layers, starting with the crust, which is the shell of a thin and hard-boiled egg.
As one descends, they encounter various creatures and structures. At 12 meters, an earthworm is seen, which can dig more than 18 meters of tunnels per day. At 122 meters, tree roots belonging to Wild fig trees are found.
At 286 meters, a hotel room, the Silver mine, is encountered. This is the deepest hotel in the world, built in a silver mine.
The journey continues to the Action tunnel in Norway, 396 meters below the surface, which reaches the bottom of a water well.
The pressure increases as one descends, reaching 330 atmospheres at 1,000 meters.
The journey continues to the permafrost, a permanent frozen layer of soil, mainly found in polar regions and thickest in northern Siberia.
At 1,980 meters, springtails, tiny eyeless insects, are found.
The journey reaches the bottom of Veronia, the deepest cave in the world.
The journey continues to the Creator mine in Canada, which reaches a depth of 2,342 meters.
The journey continues to the Yellowstone supervolcano's magma chamber, 6 km below the surface, where the Earth's crust meets the mantle.
The journey continues to the limit between the crust and the upper mantle of the Earth, where the pressure reaches 10,000 atmospheres.
The journey continues to the mantle, a layer of hot rock that constitutes two-thirds of the Earth's mass.
The journey continues to the outer core, which reaches 4,980 degrees due to the radioactive decomposition of uranium.
Finally, the journey reaches the center of the Earth, the inner core, a ball of solid metal 2,400 km in diameter and almost as hot as the surface of the Sun.
The journey ends at a depth of more than 4,830 km, having reached the center of the Earth.
1. The Earth is often compared to an onion with several layers.
2. The Earth's crust is like the shell of a thin and hard-boiled egg, occupying less than 1% of the planet's size.
3. A mole can dig more than 18 meters of tunnel per day, reaching depths greater than 7 million meters below the ground.
4. At a depth of 12 meters, one can almost come face to face with a Nile crocodile.
5. Deep in the Earth, there is an underground urban farm 33 million meters below the surface, where vegetables and herbs are cultivated.
6. The deepest known tree roots belong to Wild fig trees in South Africa and are found almost 155 meters below the ground.
7. The hotel Sala Silver mine is the deepest in the world, built in a silver mine that was turned to a depth of 286 million meters.
8. The Action tunnel in Norway is inside the sea when it is about 396 million meters below the surface.
9. The Woodin Dan in the United Kingdom is the deepest hand-dug well in the world, built to supply a hospice at about a thousand meters.
10. The pressure at the Woodin Dan reaches 330 atmospheres, equivalent to four elephants piled on top of your head.
11. A tiny worm lives on gold when it's deeper than underground, and the deepest show in the world took place 1890 meters below the earth.
12. The homestead gold mine is almost 1,520 meters below the surface, and it was the largest and deepest gold mine in North America in 1965.
13. The pergeli soil is a permanent frozen layer of soil that does not heat up, even in the summer. It is mainly found in the polar regions, particularly in northern Siberia, about 1980 meters below the ground.
14. The deepest cave in the world, Veronia, is about 2,190 meters below the surface and is located in the Republic of Georgia.
15. The Creator mine in Canada reaches a depth of 2,342 million meters below the Earth, making it the deepest single shaft elevator on the planet.
16. The deepest multicellular animal known to people lives at 3,600 meters in the mine.
17. The average depth of the Oceanic crust is 6 km below the ground.
18. The Yellowstone supervolcano's magma chamber lies about 4 km below the ground.
19. The Oceanic crust is generally 5 to 10 km wide, while the Continental crust can measure 45 km wide in some places.
20. The thickest parts of the crust are beneath the mountains, where the roots are less than the mountains themselves.
21. The limit between the crust and the upper mantle of the Earth is about 29 km below the surface.
22. The Mantle is a layer of hot rock that constitutes two-thirds of the Earth's entire mass and 84% of the planet's volume. It is 2,900 km thick and is a mixture of Iron, oxygen, and modeling clay.
23. The upper part of the mantle, together with the crust, is fragmented into huge pieces known as tectonic plates.
24. The temperature in the upper mantle begins to rise from 480 to 870 degrees as one goes deeper.
25. At a depth of about 2,900 km, one crosses the boundary between the mantle and the outer core.
26. The outer core reaches 4,980 degrees mainly due to the radioactive decomposition of uranium.
27. The outer core is 2,400 km thick and is mainly formed by iron and nickel in their liquid forms.
28. The earth's magnetic field is 50 times more powerful than on the surface in the outer core.
29. The inner core is a ball of solid metal 2,400 km in diameter.
30. The inner core rotates more quickly than the rest of the planet and is almost as hot as it is on the surface of the Sun, 5,420 degrees.