Hollow Earth Physics
August 17, 2013 4:41 PM Subscribe
Until last night I was unaware that the hollow earth conspiracy was a thing. Since then, I've been driven crazy by trying to imagine the physics of it. What would gravity be like on a shell planet? Details about the exact setup within.
posted by odinsdream to science & nature (25 answers total) 4 users marked this as a favorite
Consider if you had a shell object made of very dense unobtainium, such that it had the same mass as a solid planet of the same size, but the shell was only a few Km thick.
Would gravity effects on the surface be equivalent between the two?
If you drilled a hole into the shell would objects dropped in go all the way to come to rest in the middle of the shell, or would they just hang out somewhere in the empty void?
Bonus points for physics details about multiple shells, like those in Iain Banks' Matter.