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13 votes
6 answers
2k views

Is spacetime curved in a near-earth-free-falling-object's frame of reference?

If I float motionless in outer space, I will measure spacetime to be approximately flat. By the equivalence principle, I will get flat spacetime if I am free falling near earth. Is this right? ...
whop's user avatar
  • 131
2 votes
3 answers
754 views

Uniform Gravitational Field = No Gravitational Field?

I'm reading Geroch's lecture notes on GR, and in the first chapter he makes the following assertion: People inside an elevator freely falling in a uniform gravitational field cannot distinguish ...
user140223's user avatar
0 votes
2 answers
255 views

Acceleration in Space

Lets assume a body with a certain mass is in a region of space that has zero $g$ (or pretty close to zero $g$). Would acceleration in a straight line produce $g$-forces? Would that mass acquire ...
Amphibio's user avatar
  • 1,059