EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
Editorial use only.
Uranium separation equipment. Mounted and labelled display of the mass spectroscopy equipment used by US physicist Alfred Otto Carl Nier (1911-1994) in 1940 to obtain pure samples of uranium-235. The main item is the mass spectrograph tube at upper centre. Nier's work on mass spectroscopy found application in dating the age of the Earth and separating uranium isotopes for atomic bombs. During World War II, he was part of the Manhattan Project, helping to monitor uranium production. He was elected a member of the National Academy of Sciences (1950). Photographed at the University of Minnesota in the 1950s.
Model release not required. Property release not required.