German nuclear physicist (1907–1973) who made contributions to the separation of uranium isotopes and received the 1963 Nobel Prize for Physics with Maria Goeppert-Mayer for their proposal of the nuclear shell model. Autograph manuscript in German, 16 pages on ten separate sheets of lined printer paper, 14.75 x 12, no date but circa 1970. A draft manuscript entitled “The principle of d'Alembert in classical mechanics and in quantum theory,” signed below the title as a contributor, “H. Jensen.” The untranslated manuscript contains several interesting mathematical expressions and is heavily hand-edited and corrected throughout in various inks. In fine condition, with a central vertical fold. Accompanied by the original mailing envelope. Written in collaboration with Heinz Koppe, this paper was presented at the Heidelberg Academy of Sciences in 1971. Pre-certified PSA/DNA.
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