In simple words what is Einsteins Theory of Relativity?
The theory of relativity, or simply relativity, generally refers specifically to two theories of Albert Einstein: special relativity and general relativity. However, the word “relativity” is sometimes used in reference to Galilean invariance. Special Relativity is the physical theory of measurement in inertial frames of reference proposed in 1905 by Albert Einstein.Special relativity is a theory of the structure of spacetime, in the laws of Physics. It was introduced in Albert Einstein’s 1905 paper “On the Electrodynamics of Moving Bodies”. 1. The laws of physics are the same for all observers in uniform motion relative to one another (Galileo’s principle of relativity), 2. The speed of light in a vacuum is the same for all observers, regardless of their relative motion or of the motion of the source of the light. General Theory is the of gravitation developed by Einstein in the years 1907–1915. The development of general relativity began with the equivalence principle, under which the
