Hello, Physics. This is a weird question I've always had.
So, imagine you are on an earth-sized, indestructible sphere made of the same weight of material throughout, weighing in total the same as the Earth, and somehow make a hole through the middle of it.
After doing this, you drop a rock down into it. What happens with gravity? Does it fall onto the sides? Does it fall down to the center? Does it just float over the hole? Does something completely different happen?
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