
author
1838–1923
Best known for the Michelson–Morley experiment, this careful American scientist helped change how physicists understood light and motion. He was also a gifted chemist whose measurements of atomic weights were admired for their precision.

by Albert A. (Albert Abraham) Michelson, Edward Williams Morley
Born in Newark, New Jersey, on January 29, 1838, Edward Williams Morley became one of the most respected experimental scientists of his time. He taught at Western Reserve University in Cleveland and built a reputation for patient, exacting work in both chemistry and physics.
Morley is most often remembered for his collaboration with Albert A. Michelson on the famous Michelson–Morley experiment, which tested whether light traveled through a hypothetical “ether.” The result became one of the landmark findings in modern physics. Alongside that work, he also carried out important chemical research, especially highly precise measurements connected with atomic weights and the composition of gases.
He died on February 24, 1923. Though his name is closely tied to a single historic experiment, Morley’s broader legacy is his devotion to careful measurement—the kind of quiet, rigorous science that can reshape the way the world understands nature.