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A theory that describes how matter interacts dynamically with the geometry of space and time. It was first published by Einstein in 1915 and is currently used to study the structure and evolution of the universe, as well as having practical applications like GPS.

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Time dilation in a centrifuge: effect of velocity and acceleration?

Stop debating and do the experiment. Put a radioactive substance in an ultracentrifuge and see to what degree the decay rate changes.
jamesraymond's user avatar
1 vote
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Is it possible to make a tiny approximation in the equations of General Relativity so that t... [duplicate]

GR and Newton give almost exactly the same result for the orbits of planets and the acceleration of falling bodies. Is it an incredible coincidence, or does GR have some tiny term (e.g., ict) that acc …
jamesraymond's user avatar