Einstein's Big Mistake
Einstein overlooked the fact that the speed of light, as it occurs in the Lorentz transformation equations, is determined by the density and elasticity of a physical medium which pervades all of space, and which acts as the medium for the propagation of light waves. This fact had already been established by Scottish physicist James Clerk Maxwell, (1831-1879), who happened to die in the same year that Einstein was born. The physical medium in question was known to Maxwell as the luminiferous medium although Einstein later referred to it as a Lichtäthers (luminiferous aether). Maxwell provided us with a reasonably clear picture of what the physical structure of this medium would need to be. He proposed that all of space is filled with a sea of molecular vortices comprised of tiny aethereal whirlpools, each surrounded by electric particles. This was an idea, which according to Tesla in 1907, had in essence, long been known to men of old.