In the physics of general relativity, the equivalence principle is any of several related concepts dealing with the equivalence of gravitational and inertial mass, and to Albert Einstein's observation that the gravitational "force" as experienced locally while standing on a massive body (such as the Earth) is actually the same as the pseudo-force experienced by an observer in a non-inertial (accelerated) frame of reference.
Read more about Equivalence Principle: Einstein's Statement of The Equivalence Principle, Development of Gravitation Theory, Modern Usage, Challenges To The Equivalence Principle, Explanations of The Equivalence Principle, Experiments
Famous quotes containing the word principle:
“It is funny that men who are supposed to be scientific cannot get themselves to realise the basic principle of physics, that action and reaction are equal and opposite, that when you persecute people you always rouse them to be strong and stronger.”
—Gertrude Stein (1874–1946)