James Franck (26 August 1882 – 21 May 1964) was a German physicist and Nobel laureate.
In 1925, Franck received the Nobel Prize in Physics, mostly for his work in 1912-1914, which included the Franck-Hertz experiment, an important confirmation of the Bohr model of the atom.
1.) David Nachmansohn (1979). German-Jewish pioneers in science, 1900-1933: highlights in atomic physics, chemistry, and biochemistry. Springer-Verlag. p. 62. ISBN 9780387904023. "James Franck was born in Hamburg, the son of a Jewish banker. ...As he said, science was his God and nature his religion. He did not insist that his daughters attend religious instruction classes (Religionsunterricht) in school. But he was very proud of his Jewish heritage..."