Why do we need the special theory of relativity?
The very concept of binding energy within the nucleus, which is the basis for why we get energy out of fusing small nuclei and fissioning large ones, is only possible by applying special relativity. On the other hand, most of the particles arising from nuclear reactions do not move at relativistic speeds, and so special relativity need not be applied.
How did they prove the special theory of relativity?
The results of various experiments, including the Michelson–Morley experiment in 1887 (subsequently verified with more accurate and innovative experiments), led to the theory of special relativity, by showing that the aether did not exist. Einstein's solution was to discard the notion of an aether and the absolute state of rest.
What did the theory of relativity do for the world?
The theory of relativity is a theory about the universe and of existence and so can bring new physics and philosophy and so impacts enormously on knowledge and on the philosophy and science of the world.
What is the specific theory of relativity?
The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. 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.
Relativity: The Special and General Theory