John R. Dunning
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John Ray Dunning 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 di
Dunning in c. 1940
The cyclotron built by Dunning in 1939, in the Pupin Hall physics building basement at Columbia University. Dunning (left) is with Enrico Fermi (center) and Dana P. Mitchell (right)
John R. Dunning (left) and Hubert Thelen (right) – first cousins, March 1957 after funeral of John's father A.C. Dunning
Pupin Hall
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Pupin Physics Laboratories, also known as Pupin Hall, is home to the physics and astronomy departments of Columbia University in New York City. The building is located on the south side of 120th Stree
Pupin Hall
Pupin Hall Entrance
2013 Riverside Church 2
Low Memorial Library Columbia University College Walk Court Yard 05