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Physics, Astronomy & Cosmology / Re: Is time dilation present inside of a hollow sphere?
« on: 25/04/2017 03:21:56 »
No net gravitational force inside the hollow shell doesn't mean that there isn't a difference in gravitational potential between being inside the shell vs. outside the shell.( think of this way: you would have to do work against gravity to move from inside to outside of the shell). Since gravitational time dilation is related to difference in potential, a clock inside the shell would run slower than on on the surface even though the one on the surface feels a non-zero g force and the one inside feels none.
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