Chien-Shiung Wu
A brilliant experimental physicist whose critical experiment overturned a fundamental law of nature, yet was overlooked for the Nobel Prize.
1912–1997 (age 85)·Chinese-American physicist·Birthday: May 31·The Greatest Generation
Biography
Chien-Shiung Wu left her hometown near Shanghai and navigated a world war and entrenched sexism to become one of the most formidable experimental physicists of the 20th century. After earning her PhD at Berkeley, she was recruited to the secretive Manhattan Project, where her expertise helped develop the process for enriching uranium. Her defining work came later at Columbia University. When theorists Tsung-Dao Lee and Chen-Ning Yang proposed that the law of parity conservation might be violated in weak nuclear interactions, the physics community was skeptical. Wu designed and executed an elegant, grueling experiment at the National Bureau of Standards, cooling radioactive cobalt-60 to near absolute zero. The result was clear: parity was not conserved, shattering a cornerstone principle. While Lee and Yang won the 1957 Nobel Prize for the theoretical insight, Wu's masterful experiment, which proved it, was not similarly honored—a stark illustration of the biases often faced by experimentalists and women in science. She later received the inaugural Wolf Prize and became a passionate advocate for women in STEM.
The Greatest Generation
1901–1927
Grew up during the Depression, fought World War II, and built the postwar economic boom. Defined by shared sacrifice, institutional trust, and a belief that hard work and loyalty would be rewarded.
Chien-Shiung was born in 1912, placing them squarely in The Greatest Generation. The events that shaped this generation — world wars, depression, and rapid industrialization — shaped the world they entered and the choices available to them.
#1 When Chien-Shiung Was Born
The biggest hits of 1912
Chien-Shiung's Life & Times
The world at every milestone
1912Born
Titanic sinks on its maiden voyage
President: William Howard Taft
1917Started school
Russian Revolution overthrows the tsar; US enters WWI
President: Woodrow Wilson
1925Became a teenager
The Scopes Trial debates evolution in schools
Home: $4,366President: Calvin Coolidge"Sweet Georgia Brown" — Ben Bernie
1928Could drive
Alexander Fleming discovers penicillin; Mickey Mouse debuts
President: Calvin Coolidge"Ol' Man River" — Paul WhitemanBest Picture: Wings
1930Could vote
Pluto discovered
Gas: $0.20/galHome: $3,510President: Herbert Hoover"Body and Soul" — Paul WhitemanBest Picture: All Quiet on the Western Front
1933Turned 21
FDR's New Deal launches; Prohibition ends
Gas: $0.18/galPresident: Franklin D. Roosevelt"Stormy Weather" — Ethel WatersBest Picture: Cavalcade
1942Turned 30
Battle of Midway turns the tide in the Pacific
Gas: $0.20/galHome: $3,175Min wage: $0.30/hrPresident: Franklin D. Roosevelt"White Christmas" — Bing CrosbyBest Picture: Mrs. Miniver
1952Turned 40
Queen Elizabeth II ascends the throne
Gas: $0.27/galHome: $8,350Min wage: $0.75/hrPresident: Harry S. Truman"Blue Tango" — Leroy AndersonBest Picture: The Greatest Show on Earth
1962Turned 50
Cuban Missile Crisis brings the world to the brink
Gas: $0.31/galHome: $12,800Min wage: $1.15/hrPresident: John F. Kennedy"Stranger on the Shore" — Acker BilkBest Picture: Lawrence of Arabia
1972Turned 60
Watergate break-in; last Apollo Moon mission
Gas: $0.36/galHome: $19,550Min wage: $1.60/hrPresident: Richard Nixon"The First Time Ever I Saw Your Face" — Roberta FlackBest Picture: The Godfather
1982Turned 70
Michael Jackson releases Thriller
Gas: $1.22/galHome: $55,200Min wage: $3.35/hrPresident: Ronald Reagan"Physical" — Olivia Newton-JohnBest Picture: Gandhi
1992Turned 80
LA riots after Rodney King verdict
Gas: $1.13/galHome: $84,300Min wage: $4.25/hrPresident: George H.W. Bush"End of the Road" — Boyz II MenBest Picture: Unforgiven
1997Died at 85
Princess Diana dies in Paris car crash; Harry Potter published
Gas: $1.23/galHome: $104,100Min wage: $5.15/hrPresident: Bill Clinton"Candle in the Wind 1997" — Elton JohnBest Picture: Titanic
Key Achievements
- Designed and conducted the 'Wu experiment,' which provided the first empirical proof that parity is not conserved in weak nuclear interactions.
- Made vital contributions to the Manhattan Project, developing the gaseous diffusion process to separate uranium isotopes.
- Became the first woman to serve as president of the American Physical Society in 1975.
- Awarded the inaugural Wolf Prize in Physics in 1978 for her work on weak interactions.
Did You Know?
She was sometimes called 'the First Lady of Physics' or 'Madame Wu' by her colleagues and students.
She is the first person to receive the Research Corporation Award, given in 1958.
She wrote a textbook, 'Beta Decay,' which became a standard reference in nuclear physics for decades.
She testified before Congress in 1964 advocating for gender equality in the sciences.
“There is only one thing worse than coming home from the lab to a sink full of dirty dishes, and that is not going to the lab at all.”
