What If You Jumped Into a Tunnel Through the Earth?

What would really happen if you drilled a tunnel straight through the planet and jumped in? We follow one impossible fall through the crust, past the Moho, through the slowly flowing mantle and into an ocean of liquid iron, and out the other side about 38 minutes later. Then we go to the real limit: the Soviet Kola Superdeep Borehole, humanity's deepest hole, which stopped just 12 km down. Chapters: 0:00 The impossible fall 1:25 The drill site 2:28 The crust 3:52 The Moho 4:59 The mantle 6:30 The outer core 7:34 The centre, the other side and the deepest hole Sources: NASA Science, "Earth: Facts" - https://science.nasa.gov/earth/facts/ USGS, "The Interior of the Earth" - https://pubs.usgs.gov/gip/interior/ Dziewonski & Anderson, Preliminary Reference Earth Model (1981), doi:10.1016/0031-9201(81)90046-7 A. R. Klotz, "The gravity tunnel in a non-uniform Earth", Am. J. Phys. 83, 231 (2015) - https://arxiv.org/abs/1308.1342 BBC Future, "The deepest hole we have ever dug" (2019) - https://www.bbc.com/future/article/2019050... Smithsonian, "What's the Deepest Hole Ever Dug?" (2015) - https://www.smithsonianmag.com/smithsonian... Kola Superdeep Borehole - https://en.wikipedia.org/wiki/Kola_Superde... Mponeng Gold Mine - https://en.wikipedia.org/wiki/Mponeng_Gold... Leo is fictional; this is a thought experiment. Some numbers (Leo's speeds and times) are calculated from the standard Earth density model. Music & sound: Epidemic Sound. Earth imagery: NASA. 3D animation: Hidden Mechanics. #earth #science #documentary #physics #geology #kola