Relativity

Relativity may refer to:

==Physics== Galilean relativity, Galileo's conception of relativity Numerical relativity, a subfield of computational physics that aims to establish numerical solutions to Einstein's field equations in general relativity Principle of relativity, used in Einstein's theories and derived from Galileo's principle Theory of relativity, a general treatment that refers to both special relativity and general relativity General relativity, Albert Einstein's theory of gravitation Special relativity, a theory formulated by Albert Einstein, Henri Poincaré, and Hendrik Lorentz Relativity: The Special and the General Theory, a 1920 book by Albert Einstein