
 Docs.Rage.Net: /faq/physicsfaq/criticism/galileaninvariance (Site not responding. Last check: ) 
  In particular, the Principle of Relativity is embodied in the form of the Galilean transformation, which relates the original x, y, z, t to x', y', z', t' by the transform equations x'=xvt, y'=y, z'=z, t'=t in the simplified case where attention is focused only on transforming the xaxis, and not y and z. 
  One example of the traditional fallacious idea that an equation is not invariant under the galilean transformation comes from the Encyclopedia Brittanica: "Before Einstein's special theory of relativity was published in 1905, it was usually assumed that the time coordinates measured in all inertial frames were identical and equal to an 'absolute time'. 
  A major justification they have for their idea of the correct M system equation on which to base the the discussion of invariance, is that the variables are M system variables, never mind the fact that the arguments are S system values. 
 docs.rage.net /faq/physicsfaq/criticism/galileaninvariance (6494 words) 
