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Personne · 26 October 1889 – 29 April 1971

Li Siguang, also known as J. S. Lee, was a Chinese geologist and politician. He was the founder of China's geomechanics. He made outstanding contributions, which changed the situation of "oil deficiency" in the country, enabling the large-scale development of oil fields to raise the country to the ranks of the world's major oil producers.

Li studied in Osaka Technical College in Japan and the University of Birmingham in UK in his early years. He became a geological professor at Peking University upon his return from abroad in 1920. Li Siguang was Wuhan University building preparatory chairman from July 1928 to April 1938. He was the president of the National Central University (Nanjing University) in 1932.

After the People's Republic of China was established, Li held the positions of vice president of the Chinese Academy of Sciences (CAS) and minister of geology.

Personne · 14 October 1903 – 3 March 1992

Took a degree in geology and earth sciences at the University of Chicago
1925 - Master of Science in geology
1930 - Ph.D. in geology from Harvard after studying at Radcliffe College, the female-coordinated liberal arts college affiliated with Harvard College

1925-1926 - professor at Goucher College
1926-1928 - professor at Wellesley College
Independent academic engagements and research pursuits excluded her from the educational profession for some time
1957-1961 - professor of Engineering Geology at Harvard University
1963-1970 - research fellow while pursuing her own research and interests in the field of geology

It was through her research that she met her husband and lifelong scientific partner, Karl von Terzaghi, whom she married after receiving her Ph.D. in 1930.