All Questions
4
questions
1
vote
1
answer
198
views
Can an observer in a double tidal locked system figure out it is orbiting?
Tidal locking, when the spin rate of a body matches the orbital rate so that it always faces the other body with the same side, usually occurs for just one of the bodies in orbit. However, there are ...
- 310
1
vote
2
answers
631
views
How does acceleration feel compared to gravitational pull?
I was debating a variation of this Phys.SE question with a friend. The original question is:
"If you had your eyes closed, could you distinguish between standing still on earth and being in a ...
- 113
3
votes
3
answers
389
views
Can an observer know what is the source of gravity?
There's an observer in a closed room without windows under an influence of gravity force. Can he determine what is the source of gravity - whether it's a spinning motion, acceleration or huge mass ...
- 153
5
votes
1
answer
3k
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Curvature of spacetime in only required to explain tidal forces?
I'm a bit confused about the equivalence principle in GR.
I'm quoting from Wikipedia:
An observer in an accelerated reference frame must introduce what
physicists call fictitious forces to ...
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