First Lady of Physics Gets Stamp of Approval Once snubbed by the Nobel Prize committee, nuclear physicist Dr. Chien-Shiung Wu is getting national recognition—from the USPS. By Maddy Weinberg IN FEBRUARY, THE U.S. POSTAL SERVICE released a new Forever Stamp honoring the late Dr. Chien-Shiung Wu, one of the most influential nuclear physicists of her era. Born in China in 1912, Wu came to America at age 24 and studied nuclear physics at Cal. As a graduate student, she worked at Berkeley’s Radiation Laboratory—now the Lawrence Berkeley National Lab—under Ernest O. Lawrence, for whom the lab was later renamed.