1834
Samuel Pierpont Langley, American physicist and astronomer (died 1906)
Samuel Pierpont Langley, American physicist and astronomer (died 1906)
Samuel Pierpont Langley, American physicist and astronomer (died 1906)
Samuel Langley
American astronomer, physicist and inventor (1834–1906)
- Born
- 1834
Samuel Pierpont Langley was an American aviation pioneer, astronomer and physicist who invented the bolometer. He was the third secretary of the Smithsonian Institution and a professor of astronomy at the University of Pittsburgh, where he was the director of the Allegheny Observatory.