James Watson Cronin (born September 29, 1931) is an Americannuclear physicist. September 29 is the 272nd day of the year (273rd in leap years). ... 1931 is a common year starting on Thursday. ... Nuclear physics is the branch of physics concerned with the nucleus of the atom. ...
He was born in Chicago, Illinois. Cronin and co-researcher Val Logsdon Fitch were awarded the 1980Nobel Prize in Physics for a 1964 experiment that proved that certain subatomic reactions do not adhere to fundamental symmetry principles. Specifically, they proved, by examining the decay of K-mesons, that a reaction run in reverse does not merely retrace the path of the original reaction, which showed that the reactions of subatomic particles are not indifferent to time. Thus the phenomenon of CP violation was discovered. Chicago (officially named the City of Chicago) is the third largest city in the United States (after New York City and Los Angeles) and the largest inland city in the country, with an official population of 2,896,016, as of the 2000 census. ... State nickname: Land of Lincoln, The Prairie State Other U.S. States Capital Springfield Largest city Chicago Governor Rod Blagojevich Official languages English Area 149,998 km² (25th) - Land 143,968 km² - Water 6,030 km² (4. ... Val Logsdon Fitch (born March 10, 1923) is an American nuclear physicist. ... 1980 is a leap year starting on Tuesday. ... List of Nobel Prize laureates in Physics from 1901 to the present day. ... 1964 was a leap year starting on Wednesday (link will take you to calendar). ...
External link
James Watson Cronin (http://www.nobel-winners.com/Physics/james_watson_cronin.html)
the discovery of violations of fundamental symmetry principles in the decay of neutral K-mesons. (http://eraserall.bravehost.com/swq/cronin-autobio.html)
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