Beitrag zur Kenntnis der Dielektrizität unter besonderer Berücksichtigung der Theorie der molekularen Dipole. Offprint. Pres. copy

Klein, Oskar (1894-1977). Beitrag zur Kenntnis der Dielektrizität unter besonderer Berücksichtigung der Theorie der molekularen Dipole. Offprint from Meddelanden från K. Vetenskapsakademiens Nobelinstitut 3 (1917). 48pp. 226 x 150 mm. Original printed wrappers, edges a bit frayed, small waterstain in upper right corner. Very good. Presentation Copy, inscribed by Klein to H. A. Kramers (1894-1952) on the front wrapper: "Doctor H. A. Kramers väuskapsfullt från förf."

First Edition, Offprint Issue. Klein, a Swedish theoretical physicist, is best known for the Klein-Gordon relativistic wave equation, the Klein-Nishina formula for Compton scattering from atomic electrons—one of the first results obtained from the study of quantum electrodynamics—and for the Kaluza-Klein theory, a classical unified field theory of gravitation and electromagnetism built around the idea of a fifth dimension. During the early 1920s he worked at Niels Bohr's Institute for Theoretical Physics in Copenhagen, where he and H. A. Kramers became Bohr's closest collaborators. After spending a few years teaching at the University of Michigan, Klein returned to Europe in 1925, eventually accepting the professorial chair in physics at Stockholm University. He remained at the university until his retirement in 1962.

While Klein was a student he worked as a scientific assistant at the Nobel Institute in Stockholm, where between 1917 and 1919 he published three papers on the dielectric properties of dipolar molecules and on electrolytes. The title of the present paper translates to "Contribution to the knowledge of dielectricity with special reference to the theory of molecular dipoles." Klein presented this copy to Dutch physicist H. A. Kramers, one of the major architects of quantum theory; Kramers and Klein were among Niels Bohr's closest collaborators.

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