124 years ago today, November 19, 1901 (October 9, 1901 in the lunar calendar), China physicist Shi Ruwei was born. Shi Ruwei is a China physicist. Born on November 19, 1901 in Chongming County, Jiangsu Province (now Shanghai City). He graduated from the Mechanical Department of Nanjing Normal University (the converted Southeast University) in 1924 and graduated from the Physics Department of Southeast University in 1925. From the same year to 1930, he served as an assistant professor in the Department of Physics at Tsinghua University. In 1930, he went to the United States to study. In 1931, he obtained a master's degree from the University of Illinois with his thesis "Magnetism of Gold-Iron Alloys". In 1934, he obtained his doctorate from Yale University with his thesis "Magnetism of Iron-Cobalt Single Crystals". He returned to China in August 1934 and served as a researcher at the Institute of Physics of the Academia Sinica, studying the magnetism of matter. From 1943 to 1945, he served as a professor at Guangxi University, teaching courses such as electromagnetism and heat. In 1945, he returned to the Institute of Physics of the Academia Sinica to continue his work on magnetism research. After the founding of the People's Republic of China, he worked in the Institute of Applied Physics of China Academy of Sciences (changed to the Institute of Physics in 1958). He initially engaged in and guided magnetic research, and later served successively as acting director (1954 - 1956), director (1957 - 1981) and honorary director (1981 - 1983). He was also elected Vice Chairman and Secretary General of China Physics Society (1963 - 1982), and in 1955 he was hired as a member of the Department of Mathematical Physics and Chemistry of China Academy of Sciences (later the Department of Mathematical Physics). He made important contributions to the development of physics and magnetism in China, the formulation of scientific plans, and the cultivation of scientific talents. He died in Beijing on January 8, 1983. Shi Ruwei adhered to the fine style of integrating theory with practice. In his early research in the 1930s, the first work was "Paramagnetic Susceptibility of Chromium Chloride and Its Hexahydrate"(1931) completed in China. During this period, the study on the magnetocrystalline anisotropy of iron-cobalt (1934) and nickel-cobalt (1936) alloy single crystals is an important work in the study of basic magnetism of metals. Around the 1940s, the study of magnetic domain powder pattern of permalloy (1939) and magnetite (1940) crystals initiated experimental observation of magnetic domains in China. In the 1950s, the heat treatment of aluminum-nickel-cobalt permanent magnet alloys was studied based on practical needs (1951, 1957). He has written many books. In addition to the doctoral thesis mentioned earlier, he mainly includes many academic papers such as "Magnetism of Nickel-Cobalt Single Crystals"(1936),"Magnetism of Isotropic Ferromagnets"(1937),"Powder Pattern of Permalloy Crystals"(1939),"Magnetic Structure of Magnetite Crystals"(1940),"Preliminary Report on Heat Treatment of Permanent Magnet Alloys"(1951), and "Anisotropic Magnetism of Lü Niegu V after Magnetothermal Treatment"(1957). Comment: It has made important contributions to the development of physics and magnetism in China, the formulation of scientific plans, and the cultivation of scientific talents