short science story:

Benjamin Franklin invented lightning rod

Franklin's most famous discovery was the unification of sky and earth electricity, which broke people's superstition about lightning. In the process of discharging experiment with Leiden bottle, Franklin could not help but associate it with the lightning in the sky when facing the flash and crackle of electric spark. He realized that the electric spark in Leiden bottle might be a small lightning. In order to test this idea, lightning in the sky must be brought to the ground. On a thunderstorm day in July 1752, Franklin made a big kite out of silk. On the top of the kite, a thin iron wire was attached, and the iron wire was connected to the ground with silk thread. At the end of the silk thread, a copper key was tied, and the key was inserted into a Leiden bottle. Franklin put the kite in the sky, and a burst of lightning struck down, only to see all the hairs on the silk thread stand up and put their hands close to the copper key, that is, send out an electric spark. Tiandian was finally caught. Franklin found that the Leiden bottle with stored sky electricity can produce all the phenomena that the earth electricity can produce, which proves that the sky electricity is the same as the earth electricity. In 1747, Franklin discovered the phenomenon that the tip is easier to discharge from the Leiden bottle experiment. After he discovered the unity of sky electricity and ground electricity, he immediately thought of introducing the powerful lightning in the sky into the ground by using the principle of tip discharge to avoid the building being struck by lightning. In 176, Franklin erected a lightning rod on a building in Philadelphia, and the effect was very remarkable.

Scientific sayings

There is no royal road to science, and only those who do not dread the fatiguing climb along steep mountain roads can hope to reach its glorious summit.

-Marx

It is much more difficult to turn words into actions than to turn actions into words.

-Gorky

Not knowing is not terrible and harmful. It is impossible for anyone to know everything. What is terrible and harmful is to pretend to know without knowing.

-Tolstoy

Success = hard work+correct method+less empty talk.

-Einstein

Successful scientists are often people with a wide range of interests. Their originality may come from their erudition. Diversification will make people fresh in their views, while delving into a narrow field for too long will make people stupid.

-beveridge

Every great achievement in science is based on bold fantasy.

-Dewey

There is nothing unknown, we can only say that there are things that have not yet been known.

-Gorky

No great discovery can be made without bold speculation.

-Newton

Do you love life? Then don't waste time, because time is the stuff life is made of.

-Franklin

I never remember what has been printed in the dictionary. My memory is used to remember things that are not in books.

-Einstein

The most important thing for me to succeed in science is my love for science and my persistence in long-term exploration.

-Darwin

The meaning of science

Science is a knowledge system about nature, society and thinking, which is produced and developed by human beings in production and social activities and is the crystallization of human practical experience. It should be pointed out that for each science, it is usually only a certain stage or a certain form of movement in the development process of the objective world. In this sense, most of what science reflects is relative truth. Because science embodies human knowledge system about nature, society and thinking, science cannot be equated with truth. It is a common mistake for some people who don't understand the nature of science to make scientific conclusions absolute. Lenin said that the sum of countless relative truths is absolute truth, which is an incisive summary of absolute truth. Science can be divided into natural science and social science, and human thinking and understanding belong to this category. Science develops step by step with human understanding, thus perfecting the scientific system of various disciplines. Science includes natural science, social science, thinking science, philosophy, mathematics, physics, chemistry and so on.

China famous scientist

1. Qian Xuesen (famous scientist and physicist. One of the founders of modern mechanics in China. He has made many pioneering contributions in the fields of aerodynamics, aviation engineering, jet propulsion, engineering cybernetics, physical mechanics and other technical sciences. )

2. Qian Sanqiang, a nuclear physicist and academician of China Academy of Sciences, has made outstanding achievements in "nuclear fission" and is an advocate of many cross-disciplinary and cross-disciplinary disciplines. He has made important contributions to the establishment of China's atomic energy science and the research on the "two bombs".

3. Zhu Kezhen (geographer, meteorologist, a master of modern meteorology and geography in China, the founder and promoter of phenology research in China)

4. Li Siguang (paleontologist, stratigraphic scientist, geotectonist and Quaternary glaciologist. Is the founder of geomechanics in China. “?” The new classification standard of fossils, the establishment of Sinian and Carboniferous stratigraphic systems in southern China and the discovery and research of Quaternary glaciers in eastern China are his great contributions to geological science. )

5. Yuan Longping (agronomist, hybrid rice breeding expert, the founder of hybrid rice research in China, the first person in the world who successfully utilized the hybrid advantages of rice. In 1981, he won the first national special invention award in China and was praised as "the father of hybrid rice" internationally. )

6. Hou Debang (famous scientist, outstanding chemical expert, pioneer of heavy chemical industry in China)

7. Zhou Peiyuan (famous mechanic, theoretical physicist, educator and social activist, one of the founders of modern mechanics in China)

8. Mao Yisheng (famous bridge expert, civil engineer, bridge expert and engineering educator)

9. Outstanding achievements in nuclear physics, theoretical physics, neutron physics, plasma physics, statistical physics and fluid mechanics)

1, Tong Dizhou (biologist, founder of experimental embryology in China)

11, Qian Weichang (famous mechanic, applied mathematician, educator and social activist. Is one of the founders of modern mechanics in China. He also specializes in applied mathematics, physics and Chinese informatics, and has written a lot. Especially in the fields of elasticity, variational principle, perturbation method and so on. )

12. Yan Jici (physicist and educator, one of the founders of modern physics research in China. )

13. Wu Youxun (physicist, founder and educator of modern physics in China)

14. Yuzhe Zhang (modern astronomer in China, discoverer of "China" asteroid. )

15. Tang Feifan (a microbiologist, the first person to isolate trachoma virus in the world, and trachoma virus is called "Down's virus")

16. Ding Ying (a famous agricultural scientist, educator and rice expert, the main founder of modern rice science in China. )

17. Liang Xi (forestry scientist)

18. Lin Qiaozhi (the first female member of China Academy of Sciences, a famous gynecologist). )

19. Zhang Xiaoqian (member of the Faculty of Chinese Academy of Sciences and member of the Standing Committee of the National Committee of the Chinese People's Political Consultative Conference). He has been engaged in teaching and scientific research of internal medicine for a long time, and is the founder of gastroenterology in China. He has treated many difficult diseases throughout his life. )

2. Wu Jieping (physician, medical educator, one of the pioneers of urology in China, has made outstanding contributions to urology and male family planning. )

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