Dedicated deeds:

1. Zhan Tianyou has no regard for fame and benefits for his country: Zhan Tianyou, a pioneer of modern science and a famous engineer, was given the task of building the Beijing-Zhangjiakou Railway with patriotic enthusiasm in the face of the difficult situation of no capital, no technology and no talents in China. With the spirit of selflessness and hardship, he traveled all over the mountains and mountains between Beijing and Zhangjiakou, and it took only 5 million yuan and four years to build the Beijing-Zhangjiakou Railway, which foreigners planned to spend 9 million yuan and took seven years to complete.

all the foreign experts who came to visit were shocked and amazed. At that time, in recognition of Zhan Tianyou's achievements, an American university decided to award him a doctorate in engineering and invited him to attend the ceremony. However, Zhan Tianyou was responsible for the design of another railway, so he resolutely declined the invitation. His spirit of serving the country rather than the individual has won praise at home and abroad.

2. Hua Luogeng resolutely returned to China: After the July 7th Incident, the great mathematician Hua Luogeng returned to the motherland where the anti-Japanese war was raging, not for money or degree, and actively participated in the anti-Japanese national salvation movement after returning home. In 195, he became an internationally renowned first-class mathematician and was hired as a tenured professor by the University of Illinois in the United States, but he resolutely led his family back to the newly liberated motherland.

3. Nobel's eternal dedication: Nobel is the inventor of safe explosives and smokeless gunpowder. He devoted his whole life to the development of explosives. After the successful development, it won a large number of patents and accumulated a lot of wealth.

In p>1896, before his death, Nobel decided to use 33 million kronor as a fund, and with the annual interest, he awarded it to outstanding people in the world to promote the development of scientific and cultural undertakings. Fu said in his will: regardless of nationality, race and language, this bonus is only given to those who have really made indelible contributions to mankind. Nobel has devoted his whole life to science, while the Nobel Prize will promote the development of scientific and cultural undertakings forever.

4. Darwin's mind is to benefit mankind: Darwin was sickly in the second half of his life and still insisted on experiments and writing books. He once said: Enthusiasm for science made me forget, or drove away my daily discomfort.

on April 19th, 1882, Darwin died. He wrote such a passage in his autobiography: I have been following science and devoted my life to science. I believe that I am right to rely on it, so I will not feel regret, but I regret that I have not benefited mankind directly. These words fully demonstrated Darwin's great ambition to benefit mankind.

5. Two Bomb Founders-Deng Jiaxian: In 185, 26-year-old Deng Jiaxian returned to China after receiving a doctor's degree in physics in the United States. The motherland welcomed this "baby doctor" with warm arms, and Deng Jiaxian was immersed in the joy of youth and the happiness of his family. However, history is changing, and the motherland is facing the threat of nuclear powers. Deng Jiaxian resolutely accepted the heavy responsibility of developing the nuclear cause of the motherland, left his wife and children, went incognito, and went to the Great Gobi.

Since then, he has disappeared from the platform of physics. After more than 2 Spring and Autumn Periods, Deng Jiaxian came back with the sand in the Gobi Desert in his hair, and the reputation of the two founding fathers began to spread, and Deng Jiaxian's name reappeared among ordinary people. At this time, his wife is over 6 years old, but the cancer demon has already injected into his body, and his glorious life has burned to the end. His last words to his wife before he died were: I have no regrets when I die!