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invariance principle |
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invariance principle [in′ver·ē·əns ‚prin·sə·pəl]
(physics) Any principle which states that a physical quantity or physical law possesses invariance under certain transformations. Also known as symmetry law; symmetry principle. (relativity) In general relativity, the principle that the laws of motion are the same in all frames of reference, whether accelerated or not. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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