Chien-Shiung Wu

Lore & Background

Chien-Shiung Wu was a Chinese-American particle and experimental physicist whose work reshaped modern physics. She was born in Liuhe, Taicang, in Jiangsu province, China, as the second of three children. Her father, an engineer and social progressive, fostered her scientific curiosity by surrounding her with books and journals, while her mother, a teacher, championed education for both sexes. Wu’s defining characteristics included a modest, inquisitive nature; as a child, she preferred listening to the radio and reading poetry and Chinese classics over playing outside. She excelled academically, graduating top of her class from Suzhou Women’s Normal School and later studying at National Central University, where she initially majored in mathematics before switching to physics. Her experimental expertise drew comparisons to Marie Curie, earning her nicknames such as the “First Lady of Physics,” the “Chinese Marie Curie,” and the “Queen of Nuclear Research.” Wu is best known for conducting the Wu experiment, which proved that parity is not conserved—a discovery that led her colleagues Tsung-Dao Lee and Chen-Ning Yang to win the 1957 Nobel Prize in Physics. She herself received the inaugural Wolf Prize in Physics in 1978. During the Manhattan Project, she helped develop the process for separating uranium isotopes via gaseous diffusion. Her career spanned nuclear and particle physics, and she was known for her blunt honesty and confidence, traits encouraged by her female mentor, Gu Jing-Wei. Wu’s range extended from student activism—leading protests at the Presidential Palace in Nanjing—to groundbreaking experimental work that challenged fundamental laws of physics.

Reader's Guide

Chien-Shiung Wu’s most celebrated contribution was the Wu experiment, which proved that parity is not conserved in weak nuclear interactions, overturning a fundamental assumption in physics and leading to a Nobel Prize for her colleagues. Her expertise in experimental physics drew comparisons to Marie Curie, earning her nicknames such as the “First Lady of Physics,” the “Chinese Marie Curie,” and the “Queen of Nuclear Research.” Beyond this landmark work, Wu played a key role in the Manhattan Project, where she helped develop the gaseous diffusion process to separate uranium isotopes. Her career was marked by rigorous experimental technique and a willingness to challenge established theories. Wu’s legacy extends beyond her scientific achievements; as a Chinese-American woman in a male-dominated field, she became an enduring symbol of perseverance and an inspiration for underrepresented groups in science. Her work reshaped the understanding of fundamental forces, cementing her place as a pivotal figure in nuclear and particle physics. The 1978 Wolf Prize in Physics, which she was the first to receive, recognized her profound impact on the field.

Did You Know?

• Wu was nicknamed the 'First Lady of Physics,' the 'Chinese Marie Curie,' and the 'Queen of Nuclear Research.'
• At Berkeley, she was called 'Gee Gee' and was described by Nobel laureate Luis Alvarez as 'the most talented and most beautiful experimental physicist I have ever met.'