For science, there is no clear standard to measure comparison, and everyone's judgment standard is different. In addition, Deng Jiaxian Qian Xuesen's and Yang Zhenning's scientific methods are quite different, which is more likely to lead to completely subjective judgment, which is extremely incorrect in short!
Because science and technology are valuable and meaningful only when they are transformed into productive forces at critical moments, Deng Jiaxian and Qian Xuesen formally contributed their intelligence and wisdom to the Chinese nation's standing in the world at the time of national peril. This is also the greatness of Qian Xuesen in Deng Jiaxian. The United States and other countries almost completely blocked China, and Deng Jiaxian Qian Xuesen and others broke through many obstacles and returned to the motherland. It can really be said that they even want to return to China! They contributed their own strength to the research of China's missile atomic bomb. It can be said that without them, China will still be threatened by nuclear weapons from the United States and other countries, and China may not have the right to speak internationally!
After returning to China, Yang Zhenning worked as a professor in Tsinghua University. He had no salary. He also selflessly took out 6 million dollars to build science! On the contribution to the scientific community, Deng Jiaxian is far from being compared with Yang Zhenning. Yang Zhenning's contribution to personnel training is also beyond Qian Xuesen and Deng Jia! Not only because Yang Zhenning has great Yang-Mills equation and Yang-Baxter equation, he can shine in the hall of science, but also because Yang Zhenning has trained a large number of outstanding scientists for China.