FitzGerald contraction

FitzGerald contraction

noun Physics.
the hypothesis that a moving body exhibits a contraction in the direction of motion when its velocity is close to the speed of light.
Also called Fitz·Ger·ald-Lo·rentz contrac·tion [fits-jer-uhld lawr-ents, -lohr-] , Lorentz-FitzGerald contraction, Lorentz contraction, length contraction.


Origin:
1915–20; named after G. F. FitzGerald
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Fitzgerald contraction is always a great word to know.
So is reverberate. Does it mean:
to be reflected many times, as sound waves from the walls of a confined space
the amount of a given fissionable material necessary to sustain a chain reaction at a constant rate
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