The Grand Auditorium at Tsinghua University, Beijing, China. 1975. The photo was taken by Yang Size, who led a curious career of his own. Yang was born and raised in Nationalist controlled Taiwan and became a left-leaning student activist at Berkeley. He got a PhD in physics at UC Berkeley in 1978 and joined the Institute of Physics, Chinese Academy of Science in mainland China in 1979. Courtesy of Tsinghua University