FitzGerald contraction

noun
Fitz·​Ger·​ald contraction | \(ˈ)fits¦jerəld-\

Definition of FitzGerald contraction 

: a longitudinal contraction that according to relativity theory every moving body is believed to undergo in the dimension parallel to the direction of motion

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History and Etymology for FitzGerald contraction

after George F. FitzGerald †1901 Irish physicist

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