Michelson-Morley experiment

The Michelson-Morley experiment, one of the most important and famous experiments in the history of physics, was performed in 1887 at what is now Case Western Reserve University, and is considered to be the first strong evidence against the theory of a luminiferous aether.

Related Topics:
History of physics - 1887 - Case Western Reserve University - Luminiferous aether

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Physics theories of the late 19th century postulated that, as water waves must have a medium to move across (water), and audible sound waves require a medium to move through (air), light waves require a medium, the "luminiferous aether". The speed of light being so great, designing an experiment to detect the presence and properties of this aether took considerable thought.

Related Topics:
Physics - 19th century - Sound - Speed of light

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