Tomonaga, Sin-Itiro

Tomonaga, Sin-Itiro, << tow MOW na GA, sheen EE chee ROW >> (1906-1979), of Japan, shared the 1965 Nobel Prize in physics with United States physicists Richard P. Feynman and Julian S. Schwinger. Working independently, the three men developed an improved theory of quantum electrodynamics in the 1940’s. Quantum electrodynamics is the study of the interaction between electrically charged subatomic particles and electromagnetic radiation. The theory enables scientists to predict accurately the effects of charged particles on each other in a radiation field. Tomonaga was born in Tokyo on March 31, 1906. He graduated from Kyoto University. Tomonaga served as president of the University of Tokyo from 1956 to 1962. He died on July 8, 1979.

See also Feynman, Richard Phillips ; Magnetism (In materials) ; Subatomic particle (The Standard Model) ; Schwinger, Julian Seymour .