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Michelson–Morley experiment - Wikipedia

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The Michelson–Morley experiment was an attempt to measure the relative motion of the Earth and the luminiferous aether,[A 1] a supposed medium permeating space that was thought to be the carrier of light waves. The experiment was performed between April and July 1887 by American physicists Albert A. Michelson and Edward W. Morley at what is now Case Western Reserve University in Cleveland, Ohio, and published in November of the same year.[1] The experiment compared the speed of light in perpendicular directions in an attempt to detect the relative motion of matter through the luminiferous aether ("aether wind"). The result was negative, in that Michelson and Morley found no significant difference between the speed of light in the direction of movement through the presumed aether, and the speed at right angles. This result is generally considered to be the first strong evidence against some aether theories, as well as initiating a line of research that eventually led to special relativi

Michelson–Morley experiment - Wikipedia Jump to content From Wikipedia, the free encyclopedia 1887 investigation of the speed of light For interference experiments on matter, see Hughes–Drever experiment . Michelson and Morley's interferometric setup, mounted on a stone slab that floats in an annular trough of mercury Physics Mass–energy equivalence History of physics Branches Classical mechanics Electromagnetism Quantum mechanics Relativity Statistical mechanics Thermodynamics Research fields Applied physics Astrophysics Atomic, molecular, and optical physics Biophysics Condensed matter physi

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