I think one of the reasons light clocks are used in teaching is because you can use them to derive the Lorentz-Fitzgerald contraction, etc ., given the two postulates of SR .-- Bob Mellish 20 : 33, 4 November 2005 ( UTC)
12.
If Special Relativity is to hold up exactly to this scale, different observers would observe Quantum Gravity effects at different scales, due to the Lorentz FitzGerald contraction, in contradiction to the principle that all inertial observers should be able to describe phenomena by the same physical laws.
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In physics, length contraction ( more formally called Lorentz contraction or Lorentz FitzGerald contraction after Hendrik Lorentz and George FitzGerald ) is the phenomenon of a decrease in length measured by the observer, of an object which is traveling at any non-zero velocity relative to the observer.
14.
It was long assumed that there is no difference between these motions until the Lorentz-Fitzgerald contraction hypothesis about speeds approaching the speed of light, which was later resolved by Einstein's theory of Special relativity . talk ) 09 : 11, 4 April 2011 ( UTC)
