scientists

Thomas Alva Edison inventor of many devices that greatly influenced life around the world, including the phonograph and the electric light bulb.

Alexander Graham Bell eminent scientist, inventor of the telephone.

J. Robert Oppenheimer - Atomic scientist lights his pipe in front of a chalk drawing on a blackboard.
7th April 1963

J. Robert Oppenheimer (April 22, 1904 – February 18, 1967) was an American theoretical physicist and professor of physics at the University of California, Berkeley.