Question

what is the difference between relativity theory and special relativity theory?

Answer 1

The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity. In physics, special relativity is the generally accepted and experimentally well-confirmed physical theory regarding the relationship between space and time

Answer 2

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Albert Einstein in his theory of special relativity also known as theory of relativity ,determined that the laws of physics are the same for all non accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels

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