Albert Abraham Michelson
Albert Abraham Michelson (December 19, 1852 – May 9, 1931) was an American physicist. He was born in Strzelno (in Posen, Prussia, now in Poland) but grew up in California. He was known for his work on measuring the speed of light. That work led to him being awarded the Nobel Prize in Physics in 1907. He was the first American to receive it in the field of science.