Story: Li Siguang has loved using his brain since he was a child. He helped his mother pound rice and stepped on the pedal with his feet. The child couldn't step on it. So he used his brains to tie a rope to the pedal at the other end of the stone pestle. When he stepped down with his feet, he pulled the rope hard with his hands at the same time, so that the stone pestle would move. Got up. He and his children went to the lotus pond to pick lotus roots. Li Siguang was smart and capable. He first stepped on the leaves along the leaves, then carefully explored the direction of the lotus roots with his feet, and then stepped on the mud bit by bit in the direction of its growth, harvesting each root intact. of fresh lotus root. After that, Li Siguang went to Wuchang alone and applied for a government-run elementary school. After the examination, Li Siguang ranked first. When he was 14 years old, he was recommended by the school to Japan for further study. While attending college in Japan, he became interested in geology and determined to explore the mysteries of geological structures. Decades later, he studied geological structures carefully and proposed the tectonic theory of geomechanics. He used this theory to search for oil and gas resources and minerals, predict earthquakes, and develop geothermal heat. He wrote a glorious page in the history of Chinese geology. .

Li Siguang's famous sayings:

1. Science is an honest thing, and it relies on the labor and wisdom of many people to accumulate. 2. The true scientific spirit must be developed from correct criticism and self-criticism. Real scientific results must stand the test of facts. With such a double guarantee, we can do it with confidence and boldness, and we will not dig ourselves into the trap of arrogance. 3. Science respects facts and cannot make up reasons to attach to a theory. Extended information

Scientific contribution: Li Siguang founded geomechanics and made important contributions to the development of China's petroleum industry; in his early years, he conducted exquisite research on the fossils of the family Nymphoides and their stratigraphic layering significance, and proposed the theory of eastern China The existence of Quaternary glaciers has established the concepts of new edge subjects "geomechanics" and "tectonic system". He established the concept of "tectonic system" and created the school of geomechanics; he proposed the understanding of the three subsidence zones of the New Cathaysian tectonic system with broad oil prospecting prospects, and created a way to predict earthquakes that combines active tectonic research with in-situ stress observation.