The Contribution of Overseas Chinese to China Revolution? !

World-renowned scientist, aerodynamicist, founder of manned space flight in China, academician of China Academy of Sciences and China Academy of Engineering, winner of China's two bombs and one satellite meritorious medal.

Known as "the father of China's space flight", "the father of China's missiles", "the father of China's automation control" and "the king of rockets", the launch of China's missiles and atomic bombs was at least 20 years ahead of schedule because of Qian Xuesen's return to China.

Deng Jiaxian:

Deng Jiaxian is the main organizer and leader of China's nuclear weapons research and development. Deng Jiaxian has been leading many scholars and technicians in the front line of weapons manufacturing in China, successfully designing China's atomic bomb and hydrogen bomb, and leading China's national defense and self-defense weapons to the advanced level in the world.

1982 won the first prize of the National Natural Science Award, 1985 won two special prizes of national scientific and technological progress, 1986 won the title of national model worker, 1987 and 1989 won the special prizes of national scientific and technological progress 1 respectively. 1999 was posthumously awarded the "Two Bombs and One Satellite Meritorious Medal". Because of his great contribution to China's nuclear science, he is called "Two Bombs".

Yang Zhenning:

Yang Zhenning has made landmark contributions in particle physics, statistical mechanics and condensed matter physics. In 1950s, he cooperated with R.L. Mills to put forward the theory of non-Abelian gauge field.

1956 cooperated with Li Zhengdao to put forward the law of parity conservation of weak interaction; A lot of pioneering work has been done in particle physics and statistical physics, and Yang-Baxter equation has been put forward, which has opened up a new direction for the study of quantum integrable systems and many-body problems.

In addition, Yang Zhenning also promoted the establishment of the Institute of Mathematical Sciences of the Chinese University of Hong Kong, the Advanced Research Center of Tsinghua University, the Theoretical Physics Laboratory of Nankai University and the Advanced Academic Research Center of Sun Yat-sen University.

Extended data:

Overseas Chinese groups have the following characteristics:

First, the rapid growth of quantity and the rapid improvement of education and economic level. In recent years, the number of overseas Chinese has greatly increased due to the large number of new immigrants from China, including Hong Kong, Macao and Taiwan, and the natural growth of the population of overseas traditional Chinese communities.

Compared with the old immigrants, the education level and economic strength of the new immigrants have been greatly improved. Among the new immigrants, nearly 1/3 are students from Hong Kong, Macao, Taiwan and Chinese mainland and their families, which is essentially different from the old immigrants who are mainly farmers.

Second, the distribution of overseas Chinese in the world has changed. The pattern that overseas Chinese in the world are highly concentrated in Southeast Asia has been changed by large-scale new immigrants. At present, the proportion of overseas Chinese in Southeast Asia to the total number of overseas Chinese in the world has dropped to about 73%.

There are 5.3 million overseas Chinese in North America, accounting for nearly 12% of the total overseas Chinese in 2007. There are more than 2 million overseas Chinese in Europe, accounting for nearly 5% of the total overseas Chinese in 2007. Overseas Chinese live in communities all over the world, especially in Latin America, Africa and the Middle East.

In Chinese mainland, immigrants who have gone abroad since the reform and opening up are usually called new immigrants. In the wave of new immigrants in China, Southeast Asia is not the preferred destination for immigrants. From the early days of reform and opening up to the mid-1990s, developed countries were the main targets of new immigrants from China.

Since the mid-1960s, with the increasingly strict restrictions on foreign immigrants in developed countries and the rapid development of trade relations between China and developing countries, more and more China businessmen have gone to developing countries to seek business opportunities and settle there.

These new immigrants are quite different from the old immigrants in motivation to go abroad, education level, economic ability, occupational structure and settlement status. They have the characteristics of high academic qualifications, certain economic ability, great mobility and coming from all over the country. A considerable proportion of new immigrants from the mainland have received higher education and are themselves social elites or potential elites.

Most of the new immigrants from Hong Kong and Taiwan are also highly educated. Their motivation for emigration is not to survive, but to develop. According to the purpose, mode and occupational structure of going abroad, new immigrants in Chinese mainland can be roughly divided into four types:

One is an international student. Second, they are unskilled laborers. They mainly apply for settlement status on the grounds of family reunion, and a few people choose illegal ways to settle overseas. Third, business immigrants, including investment immigrants, overseas business people and various vendors. Fourth, a small number of labor exporters who stay in the local area. By 2008, the number of new immigrants in China may reach 9.58 million. Among them, about 65,438+0.60-65,438+0.70 million came from Hong Kong and Taiwan, and about 8 million came from Chinese mainland.