d-null

ok, a better way to ask the question so that his original intent was addressed, would be to use a different object other than earth, say a cold moon somewhere far from the sun, so that it was basically solid throughout and not molten in the middle, and drill a hole through it.... (and no atmosphere so that the air resistance was out of the issue as well)



and to the other thought, gravity has nothing to do with spinning (although you can fake gravity by spinning something)

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