Question

what is throry of relativity?
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Answer 1

Answer:

The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity. Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravitation and its relation to other forces of nature

Answer 2

Answer:

Step-by-step explanation:

As a patent clerk in Switzerland, Einstein began to think about how moving observers see events differently from stationary observers. He was led to the

FIRST POSTULATE OF SPECIAL RELATIVITY: observers can never detect uniform motion except relative to other objects.

This is part of our common experience. When you sit in a train waiting for it to go, and the train on the adjacent track starts to move, there are sometimes a few moments when you are not sure which train is moving. It is only after you see your absence of motion with respect to background objects that you realize the other train is moving.