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The Michelson–Morley experiment was an attempt to measure ... This diagram illustrates the folded light path used in the Michelson–Morley interferometer that ...
The Michelson interferometer (among other interferometer configurations) is employed in many scientific experiments and became well known for its use by Michelson and Edward Morley in the famous Michelson–Morley experiment (1887) [1] in a configuration which would have detected the Earth's motion through the supposed luminiferous aether that ...
Albert Abraham Michelson (surname pronunciation anglicized as Michael-son; December 19, 1852 – May 9, 1931) was an American physicist known for his work on measuring the speed of light and especially for the Michelson–Morley experiment.
Interferometry is used in radio astronomy, with timing offsets of D sin θ. In physics, one of the most important experiments of the late 19th century was the famous "failed experiment" of Michelson and Morley which provided evidence for special relativity.
This means that as the interferometer's arms were spun to face into and against the aether wind, the vertical fringe lines should have moved across the viewer 0.4 fringe widths left and right for a total of 0.8 fringes from maximum to minimum. Michelson reported that only between one-sixth and one-quarter of the expected reading was found. [1]
The Michelson–Gale–Pearson experiment (1925) is a modified version of the Michelson–Morley experiment and the Sagnac-Interferometer.It measured the Sagnac effect due to Earth's rotation, and thus tests the theories of special relativity and luminiferous ether along the rotating frame of Earth.
Edward Williams Morley (January 29, 1838 – February 24, 1923) was an American scientist known for his precise and accurate measurement of the atomic weight of oxygen, and for the Michelson–Morley experiment.
1929 – Michelson and F. G. Pease perform the Pearson experiment and produce a null result. 1930 – Georg Joos produces a null result using an extremely accurate interferometer placed entirely in vacuum. 1932 – the Kennedy–Thorndike experiment uses an interferometer with arms of different lengths and not at right angles. They measure over ...