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Jerome Isaac Friedman is an American physicist. He is institute professor and professor of physics, emeritus, at the Massachusetts Institute of Technology. He won the 1990 Nobel Prize in Physics along with Henry Kendall and Richard Taylor, "for their pioneering investigations concerning deep inelastic scattering of electrons on protons and bound neutrons, which have been of essential importance for the development of the quark model in particle physics.", work which showed an internal structure for protons later known to be quarks. Friedman sits on the board of sponsors of the Bulletin of the Atomic Scientists.