3 ms·
Can someone explain to me the last part about the items standing still and no force acting on them? Isn't gravity acting on them, pulling the earth and items t
by cryowaffle 12y ago
Can someone explain to me the last part about the items standing still and no force acting on them? Isn't gravity acting on them, pulling the earth and items together?
- gradi3nt 12y agoImagine being inside of a closed box like an elevator. Without leaving the box there is no way to tell the difference from being in free fall towards Earth versus floating in interstellar space. Therefor, general relativity take the perspective that gravity is a fictitious force (like centrifugal force) that arises from the shape of spacetime.
- josu 12y ago>versus floating in interstellar space Versus being inside that an elevator that is being accelerated in interstellar space This seems like a pretty good explanation: http://www.astronomynotes.com/relativity/s3.htm http://www.astronomynotes.com/relativity/s3.htm
- bweitzman 12y agogradi3nt had it right Free fall feels like floating Standing still (in the presence of the Earth's gravity) feels like being accelerated.