History: A meeting of physicists in Göttingen, Germany, on Nov 7, 1920. (Bottom: Hertha Spon, Albert Einstein, Ingrid Franck, James Franck, Lise Meitner, Fritz Haber and Otto Hahn; Top: Walter Grotrian, Wilhelm Westphal, Otto Von Baeyer, Peter Pringsheim and Gustav Hertz.) ©Keystone/France [1365 x 1080]

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