Lorentz ether theory
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What is now often called Lorentz ether theory has its roots in Hendrik Lorentz's "theory of electrons", which marked the end of the development of the classical aether theories at the end of the 19th
Hendrik Lorentz
Henri Poincaré
Albert Einstein
Michelson–Morley experiment
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The Michelson–Morley experiment was an attempt to measure the motion of the Earth relative to the luminiferous aether, a supposed medium permeating space that was thought to be the carrier of light wa
Lorentz ether theory
…introducing an auxiliary variable called "local time" for connecting systems at rest and in motion in the aether. In addition, the negative result of the Michelson–Morley experiment led to the introduction of the hypothesis of length contraction in 1892. However, other experiments also produced negative results and (guided by Henri…
Michelson and Morley's interferometric setup, mounted on a stone slab that floats in an annular trough of mercury
Fringe pattern produced with a Michelson interferometer using white light. As configured here, the central fringe is white rather than black.