Length contraction
THE CONTRACTION OF LENGTH IN THE DIRECTION OF PROPAGATION
Lorentz–FitzGerald contraction hypothesis; Lorentz contraction; Fitzgerald–Lorentz contraction; FitzGerald–Lorentz Contraction; FitzGerald Lorentz Contraction; Lorentz-Fitzgerald Contraction; Lorentz Contraction; Lorentz-Fitzgerald contraction hypothesis; Lorentz-Fitzgerald contraction; Fitzgerald contraction; FitzGerald-Lorentz contraction; Lorentz-FitzGerald Contraction; Space contraction; Relativistic length contraction; Lorentz-FitzGerald contraction hypothesis; Fitzgerald-Lorentz contraction; FitzGerald-Lorentz Contraction; Lorenz contraction; Lorentz-FitzGerald contraction; FitzGerald contraction; Lorentz-FitzGeral contraction; Lorentz-FirtGerald contraction; Lorentz–Fitzgerald contraction; Lorentz–FitzGerald contraction; FitzGerald–Lorentz contraction; Fitz-Gerald contraction; Lorentz-Fitzgerald; Lorentz contraction hypothesis; Relativistic foreshortening
Length contraction is the phenomenon that a moving object's length is measured to be shorter than its proper length, which is the length as measured in the object's own rest frame. Extract of page 106 It is also known as Lorentz contraction or Lorentz–FitzGerald contraction (after Hendrik Lorentz and George Francis FitzGerald) and is usually only noticeable at a substantial fraction of the speed of light.