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Lorentz-Fitzgerald contraction



There was a young fencer named Fisk,
whose movements were exceedingly brisk.
So fast was his action, the Lorentz Contraction
diminished his sword to a disk.

The contraction in length of a moving body, as measured by an observer at rest with respect to the body, by the factor 1/√(1 - ν2/c2), where ν is the relative speed of the moving body and c is the speed of light. Also called the Lorentz contraction, it one of the surprising effects predicted by Einstein's special theory of relativity. Compare with time dilation.


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