Michelson-Morley experiment

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Michelson-Morley experiment

Attempt to detect the velocity of the Earth with respect to ether, a hypothetical medium in space formerly proposed to carry light waves. It was first performed in Berlin in 1881 by A.A. Michelson and refined in the U.S. in 1887 by Michelson and Edward W. Morley (1838–1923). The procedure assumed that if the speed of light were constant with respect to the ether, the motion of the Earth could be detected by comparing the speed of light in the direction of the Earth's motion and the speed of light at right angles to the Earth's motion. No difference was found, and the result discredited the ether theory. As a result, Albert Einstein proposed in 1905 that the speed of light is a universal constant.

Michelson-Morley experiment [′mī·kəl·sən ′mȯr·lē ik‚sper·ə·mənt]

(optics)

An experiment which uses a Michelson interferometer to determine the difference between the speeds of light in two perpendicular directions.

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No references found			It was the Michelson-Morley experiment of 1887, conducted in Cleveland, Ohio, that led to the theory of relativity. Can we do without relativity? by Bethell, Tom / The American Spectator Back then, of course, the Michelson-Morley experiment showed that the ether didn't exist after all, revealing some serious deficiencies in prevailing ideas about light and motion. At the LHC, physics will collide with reality by Siegfried, Tom / Science News The upset started with the Michelson-Morley experiment in 1887. Dimensions of Apeiron by Stein, Dave / Frontier Perspectives			Michel-Lévy, Augustus Michelangelo Michelangelo Antonioni Michelangelo Buonarroti Michelangelo Merisi da Caravaggio Michele Michele Amari Michele Federico Sciacca Michele Sanmicheli Michelet Michelet, Jules Michelin Michelle Pauline Viardot-Garcia Michelozzo Michelozzo Michelozzi Michels, Robert Michelsen, Christian Michelson Michelson Echelon Michelson Experiment Michelson interferometer Michelson stellar interferometer Michelson, A A Michelson, Albert A. Michelson, Albert Abraham Michelson-Morley experiment Michelucci, Giovanni Michener, James Michener, James A Michener, James Albert michenerite Michiel Adriaanszoon de Ruyter Michigan Michigan Algorithm Decoder Michigan Brown Trout Festival Michigan City Michigan cut Michigan Renaissance Festival Michigan State Parks Michigan State University Michigan tripod Michigan United Conservation Clubs Michigan, Lake Michigan, University Michigan, University of Michler's Ketone Michman Michmas Michoacan Michoacán Michurin Winter Beurre			Michelmas Michelob Ultra Golf Tour Michelozzi Michelozzo Michelozzi Michelozzo Michelozzo Michelozzo Michelozzo di Bartolomeo Michelozzo di Bartolomeo Michelozzo di Bartolommeo Michelozzo di Bartolommeo Michelozzo Michelozzi Michelozzo Michelozzi Michels, Robert Michelsen Michelsen, Christian Michelson Michelson Michelson Albert Abraham Michelson Doppler Imager Michelson Doppler Imager / Solar Oscillations Investigation Michelson Echelon Michelson Experiment Michelson interferometer Michelson Interferometer for Passive Atmospheric Sounding Michelson stellar interferometer Michelson Water Reclamation Plant Michelson, A A Michelson, Albert A. Michelson, Albert Abraham Michelson, Albert Abraham Michelson-Morley experiment Michelucci, Giovanni MIChemE Michener Michener, James Michener, James A Michener, James Albert michenerite Micher Michery Michhuacan Michhuacan Michiana Amateur Radio Club Michiana Area Construction Industry Advancement Fund Michiana Area Roofing Contractors Association Michiana Beekeeper's Association Michiana Builders Association Employee Assistance Program Michiana Builders Association, Inc. Michiana Christian Home Educators Michiana Christian Service Camp Michiana Community Church of God Michiana Community Homeschool Family Support Michiana Construction Alliance Michiana Health Information Network Michiana Horse and Rider Association Michiana Income Property Owners Association

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