New answers tagged equivalence-principle
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Question on Free-Fall
Note that the term "free-fall" is used differently by laymen (from a physics "lens", it's misuse). For example: sky divers use free-fall to mean any part of the dive with nothing ...
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Can you directly feel the effect of gravity, or only opposing forces?
You are almost completely right.
What we do not and cannot feel is a uniform gravitational force. By “uniform” here I mean in the sense of general relativity where the force of gravity is just a ...
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Inertial Frames, Relativity, Equivalence Principle and the Twin Paradox
What you are missing is that you cannot attribute the acceleration to the stay-at-home twin in the way you have supposed. The asymmetry is fundamental.
The reason one twin ages less than the other is ...
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