University of Chicago professor Yoichiro Nambu wins nobel prize in physics

University of Chicago professor Yoichiro Nambu (L) shakes hands with fellow professor and 1980 Nobel physics laureate James Cronin during a news conference after winning the Nobel prize in physics on October 7, 2008 in Chicago. The Tokyo born American was awarded the prize for discovering a mechanism called spontaneous broken symmetry in subatomic physics and shares the prize with Japanese physicists Makoto Kobayashi and Toshihide Maskawa. (UPI Photo/Brian Kersey)