Albert Abraham Michelson (surname pronunciation anglicised as “Michael-son”) (December 19, 1852 – May 9, 1931) was a Prussian-born American physicist known for his work on the measurement of the speed of light and especially for the Michelson-Morley experiment. In 1907 he received the Nobel Prize in Physics. He became the first American to receive the Nobel Prize in sciences.
Michelson, the son of a Jewish merchant, was born to a Jewish family in what is today Strzelno, Poland (then Strelno, Provinz Posen in the Kingdom of Prussia). He moved to the United States with his parents in 1855, when he was two years old. He grew up in the rough mining towns of Murphy’s Camp, California and Virginia City, Nevada, where his father was a merchant.
President Ulysses S. Grant awarded Michelson a special appointment to the U.S. Naval Academy in 1869. During his four years as a midshipman at the Academy, Michelson excelled in optics, heat and climatology as well as drawing. After his graduation in 1873 and two years at sea, he returned to the Academy in 1875 to become an instructor in physics and chemistry until 1879. From 1880 to 1882, Michelson undertook postgraduate study at Berlin under Hermann Helmholtz and at Paris.
Michelson was fascinated with the sciences and the problem of measuring the speed of light in particular. While at Annapolis, he conducted his first experiments of the speed of light, as part of a class demonstration in 1877. After two years of studies in Europe, he resigned from the Navy in 1881. In 1883 he accepted a position as professor of physics at the Case School of Applied Science in Cleveland, Ohio and concentrated on developing an improved interferometer. In 1887 he and Edward Morley carried out the famous Michelson-Morley experiment which seemed to rule out the existence of the aether. He later moved on to use astronomical interferometers in the measurement of stellar diameters and in measuring the separations of binary stars.
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