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Asked by 11ebourne to Ben, Dave, Ed, Sam, Susana on 22 Jun 2013.
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Benjamin Hall answered on 22 Jun 2013:
No. Once you got past the crust you’d find yourself in the mantle, which is around 1000 degrees centigrade. If you got past that you’d be in the vicinity of the outer core, which is around 3600 degrees centigrade. You’d melt before you ever made it out of the other side.
But, for arguments sake, lets say the earth is the same temperature all the way through… say room temperature. Then you drill your hole and jump: Immediately, you’d accelerate very quickly but this would slow down as you neared the core. Remember that gravity is due to mass and the closer you get to the core of the earth the less mass there is pulling you down. Whether or not you made it to the other side, I don’t know. If you did, you’d pop out of the hole at the other end and just fall straight back down because of gravity. Falling ‘down’ tends to be how humans think of objects under the influence of gravity.
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David Briggs answered on 23 Jun 2013:
Well – assuming you could do it – you’d come out of the hole feet first – so upside down.
However – the centre of the planet is very hot and radioactive, so you’d burn up first. Also, the gravity would get weaker the closer the you go to the core. Once you got past the core gravity would be slowing you down – so you’d slow down until to popped out the other side – probably quite gently.
If you didn’t have anything to grab on to, you’d fall straight back down the hole.
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Sam Horrell answered on 24 Jun 2013:
I think Ben and Dave have got this one covered. There would be some pretty severe effects on the Earth by removing its core to make this hole though. I’m not sure what they would be exactly but its definitely the thing that disaster movies are made of.
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