Chien-Shiung Wu was a pioneering Chinese-American physicist whose work fundamentally reshaped our understanding of nuclear and particle physics. Born in 1912 in Liuhe, Jiangsu Province, China, Wu was raised in a progressive household that valued education, especially for women. She pursued physics at National Central University in Nanjing and later moved to the United States, earning her Ph.D. from the University of California, Berkeley in 1940 under the mentorship of Ernest Lawrence, a Nobel laureate and inventor of the cyclotron.

Wu’s career was marked by ground-breaking experimental work. During World War II, she contributed to the Manhattan Project, helping to develop the process for uranium enrichment used in atomic bombs. However, her most famous achievement came in 1956 when she conducted the Wu experiment, which disproved the law of conservation of parity in weak nuclear interactions. This discovery overturned a fundamental assumption in physics and validated the theoretical predictions of Tsung-Dao Lee and Chen-Ning Yang, who later received the Nobel Prize. Wu’s critical role in the experiment was widely acknowledged, though she was controversially excluded from the award.

Throughout her career, Wu broke numerous barriers for women and minorities in science. She became the first female president of the American Physical Society and received many honours, including the National Medal of Science and the Wolf Prize in Physics. Her work not only advanced the field of nuclear physics but also inspired generations of scientists. Chien-Shiung Wu passed away in 1997, leaving behind a legacy of brilliance, perseverance, and trailblazing achievement in the face of adversity.