1.Zu Chongzhi: 429-500.

He is an outstanding mathematician and scientist in China. People in the Southern and Northern Dynasties, Han people, the word Wen Yuan. Zu Chongzhi calculated the value of pi (л) to seven decimal places for the first time in the history of mathematics in the world, that is, between 3. 14 15926 and 3. 14 15927. He proposed an agreed rate of 22/7 and a secret rate of 355/ 1 13. This secret rate value was first put forward in the world, more than 1000 years earlier than that in Europe, so some people advocate calling it "ancestral rate".

2. Qian Xuesen (191.12.1~ today)

China famous physicist, world famous rocket expert. Born in Shanghai, a native of Hangzhou, Zhejiang Province,/kloc-0 joined the China * * * Production Party in August, 1959 with a doctorate, and was known as the "father of Chinese missiles". Qian Xuesen put forward an extremely important implementation plan for the development of rocket and missile technology in China. From April 65438 to April 0958, he served as a technical leader in the development of rockets, missiles and spacecraft for a long time, making great contributions to the development of rockets, missiles and aerospace in China.

3. Li Siguang (188910/October 26th-1971April 29th)

Mongolian, Zizhonggong, 1889 10/kloc-0 was born in a poor family in Huanggang County, Hubei Province on October 26th. (Another saying is1889165438+10/8). He is a world-famous scientist, geologist, educator and social activist, and the founder of modern earth science and geological work in China. Li Siguang's greatest contribution is to establish geomechanics, study the phenomena of crustal movement from the mechanical point of view, and explore the laws of geological movement and mineral distribution, and the new Cathaysian tectonic system. Theoretically, it overturns the conclusion that China is poor in oil and affirms that China has good oil storage conditions.

4. Deng Jiaxian

He is the main organizer and leader of China's nuclear weapons research and development, and is known as the "founder of the two bombs". In the research of atomic bomb and hydrogen bomb, Deng Jiaxian led the basic theoretical research of detonation physics, fluid mechanics, equation of state and neutron transport, completed the theoretical scheme of atomic bomb, and participated in guiding the detonation simulation test of nuclear test. After the success of the atomic bomb test, Deng Jiaxian organized forces to explore the design principles and selected technical approaches of the hydrogen bomb. He led and personally participated in the development and experiment of China's first hydrogen bomb in 1967.

5. Qian Sanqiang (19 13 ~ 1992)

Formerly known as Qian Bingqiong, he was born in Huzhou, Zhejiang. His mentors are Madame Curie's daughter, Nobel Prize winner Irina Curie and her husband, Aurio Curie. Since the founding of New China, Qian Sanqiang has devoted itself to the development of atomic energy. He used to be the deputy director and director of the Institute of Modern Physics of Chinese Academy of Sciences (later renamed the Institute of Atomic Energy), and 1954 joined the China * * * Production Party. From 65438 to 0955, after the central government decided to develop its own nuclear power, he became a planner. From 65438 to 0958, he participated in the construction of atomic reactors by the Soviet Union and gathered a large number of nuclear scientists (including his wife). He also recommended Deng Jiaxian and other outstanding talents to the team developing nuclear weapons.