“Lorentz-Fitzgerald contraction”的概念、定义、习题解题方法及翻译-物理辞典

单词	Lorentz-Fitzgerald contraction
释义	Lorentz-Fitzgerald contraction(Fitzgerald contraction) The contraction of a moving body in the direction of its motion. It was proposed independently by H. A. Lorentz and G. F. Fitzgerald (1851–1901) in 1892 to account for the null result of the Michelson-Morley experiment. The contraction was given a theoretical background in Einstein's special theory of relativity. In this theory, an object of length =₀ at rest in one frame of reference will appear, to an observer in another frame moving with relative velocity v with respect to the first, to have length =₀v(1 - v²/c²), where c is the speed of light. The original hypothesis regarded this contraction as a real one accompanying the absolute motion of the body. The contraction is in any case negligible unless v is of the same order as c
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