How long to fall through a hole in Earth?

Originally posted by KazetNagorra
If you are really being nitpicky, you also have to take into account a small correction due to being obliterated by a huge mass of molten rock.

Well, conceptually that's just another drag term and not really different from air resistance. 😉

Originally posted by DeepThought
Well, conceptually that's just another drag term and not really different from air resistance. 😉

And to get really nit picky, what about the torque given by the sun's journey around and through the plane of our galaxy?