Briefly, what is the theory of relativity?

JSBach

E = MC2, matter is energy in 'solidified' form, and the amount of that energy is the mass multiplied by the speed of light squared. If matter 'disintegrates' the amount of energy emitted is equal to that as well. May 12 00, 10:01 AM

zbeckabee

The theory of relativity, or simply relativity, refers specifically to two theories of Albert Einstein: special relativity and general relativity. Einstein's Special Theory of Relativity describes the motion of particles moving at close to the speed of light. In fact, it gives the correct laws of motion for any particle. 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 (for example when standing on the surface of the Earth) are physically identical. http://www.bartleby.com/173/ http://www2.slac.stanford.edu/vvc/theory/relativity.html http://en.wikipedia.org/wiki/Theory_of_relativity Feb 08 08, 4:15 PM