Roger Penrose 1980 Professor Roger Penrose born 1931, theoretical mathematician at Oxford University and inventor of twistor theory. Photographed at blackboard with diagram of a twistor, Oxford, 1980. Editorial Stock Photo - Afloimages
Professor Roger Penrose (born 1931), theoretical mathematician at Oxford University and inventor of twistor theory. Photographed at blackboard with diagram of a twistor, Oxford, 1980.