Albert Michelson

The Michelson-Morley experiment, conducted in Cleveland in 1887 by Albert Michelson and Edward Morley, attempted to detect the 'luminiferous ether'—a hypothetical medium through which light waves were thought to propagate. Their null result, showing no detectable difference in the speed of light in different directions, became one of the most famous failed experiments in history and a key inspiration for Einstein's 1905 special theory of relativity.

Yes, Michelson became the first American to receive a Nobel Prize in the sciences when he was awarded the Nobel Prize in Physics in 1907. The prize recognized his precision optical instruments and the spectroscopic and metrological investigations he conducted with them, particularly his measurements of the speed of light.

Michelson spent decades refining his measurements using increasingly sophisticated rotating-mirror experiments. His 1926 measurement, conducted between Mount Wilson and a station in California, yielded a value of approximately 299,796 kilometers per second, within about 4 km/s of the modern defined value of 299,792.458 km/s.

Michelson was affiliated with several institutions, notably the University of Chicago, where he joined the faculty in 1892 at the invitation of the university's founding president, William Rainey Harper. He also spent significant years at the Case School of Applied Science in Cleveland, where he conducted the famous Michelson-Morley experiment.