Luminiferous aether
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In the late 19th century, luminiferous aether, æther or ether, meaning light-bearing aether, was the term used to describe a medium for the propagation of light.
Due to the negative outcome of aether-drift experiments like the Michelson-Morley experiment, aether as a mechanical medium having a state of motion is no longer an explanation made use of in modern physics and has been replaced by the theory of relativity and quantum theory.
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Aether concepts
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See also
- History of special relativity
- Superseded scientific theory
- Preferred frame
- Galactic year
- Virtual particle
- Dirac sea
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