Albert A. (Albert Abraham) Michelson

Born in Prussia in 1852 and brought to the United States as a small child, Albert A. Michelson grew up in the American West before studying at the U.S. Naval Academy. He began his career in the Navy, where his talent for exact measurement and optical experiments quickly stood out.

Michelson became famous for measuring the speed of light with extraordinary accuracy and for developing optical instruments that transformed experimental physics. He is especially remembered for the Michelson–Morley experiment, a landmark test in the history of science, and for the interferometer that still bears his name.

In 1907, he received the Nobel Prize in Physics, becoming the first American scientist to win a Nobel in the sciences. He later taught at major institutions including the University of Chicago, and his work helped shape modern physics by showing how much could be learned from careful, elegant experiments.