Fritz Reiche (July 4, 1883 – January 14, 1969) was a German physicist, a student of Max Planck and a colleague of Albert Einstein, who was active in, and made important contributions to the early development of quantum mechanics including co-authoring the Thomas-Reiche-Kuhn sum rule.
[1] Fritz Reiche was born in 1883 in Berlin, Germany.
[3] Reiche published more than 55 scientific papers and books including The Quantum Theory.
[4][5] He became a professor in 1921 at the University of Breslau and then was dismissed as a Jew from his academic position in 1933.
Eventually, with the help of Ladenburg, Einstein, and the Emergency Committee in Aid of Displaced Foreign Scholars,[6][7] Reiche emigrated with his family to the United States in 1941 and went on to work with NASA and the United States Navy on projects related to supersonic flow.