EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Marcel Grossman (1878-1936), Swiss mathematician. Grossman was a friend and classmate of Albert Einstein, and it was he who emphasised the importance of a non-Euclidean geometry (Riemannian, elliptic, geometry) to Einstein, which was a necessary step in the development of Einstein's general theory of relativity.
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