Norman Foster Ramsey, Jr. (August 27, 1915 - November 4, 2011) was an American physicist. A physics professor at Harvard University since 1947, Ramsey also held several posts with such government and international agencies as NATO and the United States Atomic Energy Commission. He was awarded the 1989 Nobel Prize in Physics for the invention, in 1949, of the separated oscillatory field method, which had important applications in the construction of atomic clocks. Read more