General relativity is a description of how light affects the laws of gravity. Because mass causes light to "slow down", but light must move at the speed of l...
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General relativity is a description of how light affects the laws of gravity. Because mass causes light to "slow down", but light must move at the speed of l...
Special relativity is a description of the laws of nature based on the observed behavior of light, namely the fact that it can only move at one speed (c). It...
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