Date of Birth: 
Place of Birth: Zhuji, Zhejiang, China
About Chung-Yao Chao
- Chung-Yao Chao (simplified Chinese: ???; traditional Chinese: ???; pinyin: Zhà o Zhongyáo; Wade–Giles: Chao Chung-yao; 27 June 1902 – 28 May 1998) was a Chinese physicist.
- He studied the scattering of gamma rays in lead by pair production in 1930, without knowing that positrons were involved in the anomalously high scattering cross-section.
- When the positron was discovered by Carl David Anderson in 1932, confirming the existence of Paul Dirac's "antimatter", it became clear that positrons could explain Chung-Yao Chao's earlier experiments, with the gamma rays being emitted from electron-positron annihilation. He entered Nanjing Higher Normal School (later renamed National Southeastern University, National Central University and Nanjing University), in 1920 and earned a B.S.
- in physics in 1925.
- Then he earned a Ph.D.
- degree in physics under supervision of Nobel Prize laureate Robert Andrews Millikan at California Institute of Technology in 1930.
- Later he went back to China and joined the physics faculty of Tsinghua University in Beijing.
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