Zhao Jiuzhang, Qian Xuesen, Qian Sanqiang, Yuan Longping, Deng Jiaxian, Peng, Lu Xun, Chen Duxiu, Liu Hulan and Peng.

Knowledge expansion

I. Personal achievements and contributions:

Pioneer of the space industry: Qian Xuesen has made outstanding achievements in the space field. He participated in and led the design and launch of China's first artificial earth satellite "Dongfanghong-1", which successfully promoted the start of China's space industry. His efforts have made China the third country in the world with the ability to launch satellites independently.

Develop rocket technology: Qian Xuesen has also made important breakthroughs in the research and application of rocket technology. He presided over the development of China's first generation Long March series of launch vehicles, which laid a solid foundation for the development of China's space industry.

Scientific research innovation and academic contribution: Qian Xuesen's scientific research achievements are rich and varied, involving aviation, aerospace, mechanics, physics and other fields. He put forward important theories such as Qian Xuesen's principle and Qian Xuesen's island effect, and made important contributions to the development of fluid mechanics.

Second, scientists and educators:

Scientific research and education: As an outstanding scientist, Qian Xuesen not only made great achievements in scientific research, but also devoted himself to training young scientists and engineers. He opened aerospace majors in Tsinghua University and Beihang University, trained a large number of outstanding talents, and made contributions to the rapid development of aerospace industry in China.

Popular science propaganda and social influence: Qian Xuesen actively participated in popular science propaganda activities, popularized scientific knowledge to the broad masses and improved scientific literacy. His efforts made the public know more about space technology and set an example for China's scientific and technological progress.

Third, the national cause and social impact:

National security and military cause: Qian Xuesen is one of the founders of China's space cause, and his work is of great significance to national security and military cause. He has made great contributions to the development of China's nuclear weapons and missile technology and improved the country's self-defense capability.

International exchange and cooperation: Qian Xuesen enjoys a high reputation in the field of international science and technology and actively promotes international scientific and technological exchanges and cooperation. He cooperated with American space experts, made important efforts for Sino-US scientific and technological cooperation, and made contributions to world scientific and technological progress.

Social influence and spiritual demeanor: Qian Xuesen's efforts and achievements not only have a far-reaching impact in the field of science and technology, but also inspire young students. His professionalism, pursuit of Excellence and social responsibility have become a model pursued by scientific and technological workers in China.

To sum up, Qian Xuesen is an outstanding figure in China's scientific community. His personal achievements and contributions, his position as a scientist and educator, his national cause and social influence all provide us with a multi-dimensional analytical framework. His work has laid the foundation of China's space industry, made important contributions to national security and development, and has far-reaching influence on scientific research innovation, popular science propaganda and social influence.