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equivalence principle |
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equivalence principleFundamental principle of physics that in its weak form states that gravitational (see gravitation) and inertial (see inertia) masses are the same. Albert Einstein's stronger version states that gravitation and acceleration are indistinguishable. It implies that the effect of gravity is removed in a suitably accelerated reference frame, such as an elevator with its cable cut, in which a person would experience free fall. equivalence principle [i′kwiv·ə·ləns ‚prin·sə·pəl] (relativity) In general relativity, the principle that the observable local effects of a gravitational field are indistinguishable from those arising from acceleration of the frame of reference. Also known as Einstein's equivalency principle; principle of equivalence. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The result: an illusion that the equivalence principle reigns. A good deal of the science of dynamics and the philosophy of physics is based on the equivalence principle. |
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