John R. Dunning
American physicistDied when: 67 years 335 days (815 months)
Star Sign: Libra
John Ray Dunning (September 24, 1907 – August 25, 1975) was an American physicist who played key roles in the Manhattan Project that developed the first atomic bombs.
He specialized in neutron physics, and did pioneering work in gaseous diffusion for isotope separation.He was Dean of the School of Engineering and Applied Science at Columbia University from 1950 to 1969.