Biography
1957 Nobel Physics prize for penetrating investigation of the so-called parity laws which has led to important discoveries regarding the elementary particles
Wu Youxun had a courtesy name of Zhengzhi and came from Gao'an, Jiangxi Province. He was China's outstanding physicist and educationalist. His works include study of X-ray and Electron scattering.
Biography
1949 Nobel Physics prize for his prediction of the existence of mesons on the basis of theoretical work on nuclear forces. Yukawa's 1934 theoretical calculations on the forces binding the atomic nucleus predicted the existence of new subatomic particles, now called mesons. These particles were expected to be 200 to 300 times as heavy as the electron and because of their mass act at very short intranuclear distances. Many different types of these highly unstable particles which may be charged or neutral were later observed experimentally, including resulting from cosmic rays, and their study has proved to be of fundamental importance for the understanding of the forces acting in the atomic nucleus.