AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Chien-Shiung Wu (1912-1997), Chinese-US physicist, with a computer used in her experiments. Born in China, Wu moved to the USA in 1936, becoming a physics professor at Columbia University, New York, in 1957. In 1956, Wu and Lee experimentally confirmed Yang and Lee's theory that parity is violated during weak radioactive decay, overturning many basic assumptions of particle physics. Wu experimentally confirmed other particle theories, as well as studying muonic atom X-ray spectra.
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