(born 1911), American physicist, born in Jacksonville, Fla. Wheeler is credited with developing groundbreaking theories on space-time physics, gravitational waves, black holes, and quantum theory. He earned a Ph.D. from Johns Hopkins University in 1933 and then held many international teaching posts, finally settling upon Princeton University in 1938. He worked on the Matterhorn (H-bomb) Project at Princeton in the early 1950s. He authored or coauthored several books, including ‘Spacetime Physics' (1966), ‘Einstein's Vision' (1968), ‘Frontiers of Time' (1979), ‘A Journey into Gravity and Spacetime' (1990), and ‘At Home in the Universe' (1993).