On this day, 125 years ago, on January 2, 1900 (December 2, 1899 in the lunar calendar), China chemist Huang Ziqing was born. Huang Ziqing is from Mei County, Guangdong. January 2, 1900-July 23, 1982. Chemist. Graduated from Tsinghua School in 1921. Received a bachelor's degree from the University of Wisconsin in 1924. Received a master's degree from Cornell University in 1925. Received his doctorate from the Massachusetts Institute of Technology in 1935. He is a member of the Department of Chemistry, China Academy of Sciences. He was a professor at Peking University. He has been engaged in teaching and research in physical chemistry all his life, especially in solution theory and thermodynamics. In 1938, he published a paper "Three Point Temperature of Water", which was recognized internationally as an excellent achievement. Its measured value (0.00980¡æ) was adopted by the International Conference on Temperature Scales and designated as one of the international temperature standards, and was therefore selected into the United States."World Who's Who". In 1956, he compiled and published Physical Chemistry, which was the first Chinese physical chemistry textbook. His books include "Introduction to the Theory of Electrolyte Solutions" and "Introduction to the Theory of Non-Electrolyte Solutions". At that time, the Atomic Energy Institute in Chicago wanted him to stay, but Huang Ziqing voluntarily returned to the troubled China to suffer. "I am China and want to share a destiny with China." This was what he said at the time. The third time he went to the United States, he still came back. It would have been nice if he had not come back at that time. At least the atomic bomb dropped on the Japanese was due to the efforts of the China. Huang Ziqing has a deep foundation in poetry and poetry, and his family is good. When he arrived at Yali Middle School, another Tan Hua taught him lessons. He was deeply educated and was good at old-style poetry. His last home was in Yannan Garden of Peking University, a place with a high density of masters. At Yan Nanyuan's home