Relativity

Albert Einstein was a German born theoretical physicist. Einstein developed the general theory of relativity, one of two pillars of modern physics, along with quantum mechanics. Albert Einstein's work is also known for its influence on the philosophy of science. Most notably, Albert Einstein is best known in popular culture and in the world of science & math, physics, and philosophy for his mass-energy equivalence formula E = MCsquared, which has been touted as the world's most famous equation. Einstein received the 1921 Nobel Prize in Physics for his "services to theoretical physics", in particular his discovery of the law of the photoelectric effect, a pivotal step in the evolution of quantum theory. In this Albert Einstein edition titled Relativity: The Special and The General Theory, Einstein's theory of relativity is revealed and it shows how the theory of relativity usually encompasses two theories of Albert Einstein: special relativity and general relativity. Special relativity is a theory of the structure of spacetime. It was introduced in Einstein's 1905 paper On the Electrodynamics of Moving Bodies. Special Relativity is based on two postulates which are contradictory in classical mechanics. General relativity is a theory of gravitation developed by Einstein in the years 1907-1915. The development of general relativity began with the equivalence principle, under which the states of accelerated motion and being at rest in a gravitational field are physically identical. Albert Einstein's Relativity: The Special and The General Theory is often required textbook reading in various courses such as science & math, physics, gravity, relativity, and philosophy.