Victor Franz Hess
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Victor Francis Hess (June 24, 1883 – December 17, 1964) was an American physicist. After teaching at the universities of Graz and Innsbruck, he came to the United States in 1938 and was later naturalized. He became professor of physics at Fordham University in 1938. By means of instruments carried aloft in balloons, Hess and others proved that radiation that ionizes the atmosphere is of cosmic origin. For this discovery of cosmic rays he shared with Carl David Anderson the 1936 Nobel Prize in Physics.
