Well, it s not very demanding to ask a few questions to write the names of three ancient Chinese sci

1. Zhang Heng (78-139 A.D.), the word Pingzi, a native of Xi'e in Nanyang (now Xia Village, Shiqiao Town, Nanyang City, Henan Province), Zhang Heng observed and recorded 2,500 stars, created the world's first leaky armillary sphere that can perform celestial phenomena more accurately, the first instrument to test the first - the wind and ground motion instrument, and also manufactured a guide car, an automatic drum car, a wooden bird that flew several miles, and so on. Zhang Heng is the author of a total of 32 scientific, philosophical, and literary works, including astronomical works such as "Lingxian" and "Lingxian Tu". In order to commemorate Zhang Heng's achievements, people named a crater on the far side of the moon as "Zhangheng Crater", and asteroid 1802 as "Zhangheng Asteroid".

Guo Moruo's evaluation of Zhang Heng is: "Such a well-rounded figure is rare in world history, and it is admirable. ”

2. Zhang Zhongjing (150 -219 A.D.) famous machine, a native of Nieyang, Nanyang County, Eastern Han Dynasty (now Dongdong Town, Deng County, Henan Province) Zhang Zhongjing read a wide range of books, collected a wide range of prescriptions, systematically summarized the essence of medicine before the Han Dynasty, and wrote "Treatise on Typhoid Fever and Miscellaneous Diseases" in 16 volumes according to his rich medical practice experience"Medical saint", Bong"Typhoid fever" 、"Jin Kui"It is a medical classic (after the Tang and Song dynasties, the "Treatise on Typhoid Fever and Miscellaneous Diseases" was divided into two books: "Treatise on Typhoid Fever" and "Jin Kui Yaolu"). Traditional Chinese Medicine"Four classics", Zhang Zhongjing completed two by himself. What he established"Dialectical arguments"In principle, it is a splendid pearl in the great treasure house of the motherland's medicine, so that the medicine of the Chinese nation has unique characteristics and stands on its own among the nations of the world.

Zhang Zhongjing is one of the most outstanding scientists in the long history of Chinese civilization, and his theories have nurtured generations of famous doctors, and he still is"The Tao has been more glorious for thousands of years".

3. Zu Chongzhi (429 500), the character is far away, and he is a native of Fan Yangxuan (now Laishui, Hebei). Brilliant mathematician, astronomer and mechanic. For the first time in the history of world mathematics, he calculated the value of pi ( ) to seven decimal places, i.e. between to .

He proposed a density rate of about 22 7 and a density rate of 355 113, which was the first in the world to be proposed, more than a thousand years earlier than in Europe, so some people advocated calling it "ancestral rate". The "Da Ming Calendar" compiled by him introduced "precession" into the calendar for the first time. It is proposed to set 144 Yan months in 391 years.

The length of a return year is calculated to be days, and the error is only about 50 seconds. In order to commemorate Zu Chongzhi's exploits, people named the crater on the far side of the moon "Zu Chong's crater", and the asteroid 1888 was named "Zu Chong's asteroid".

Cai Lun Papermaking.

Bi Sheng Movable type printing.

Zhang Heng ground motion instrument.

Ancient Chinese scientists: Zhang Heng, Zu Chongzhi, Shen Kuo, Liu Hui, Li Shizhen.

Foreign scientists: Newton, Einstein, Hawking, Planck, Maxwell, Marie Curie, Mendel, Franklin, Nobel, Kepler.

Zhang Heng, Shi Shenfu, Zu Chongzhi, Qian Xuesen, Li Siguang, Qian Sanqiang, Deng Jiaxian, Yuan Longping, Edison, Einstein, Newton, Faraday, Galileo.

Thank you for the trouble to adopt!

Zu Chongzhi (April 20, 429, 500 AD) was an outstanding mathematician and scientist in China. His main contributions are in mathematics, astronomical calendars, and mechanics.

Major achievements: Founded the "Da Ming Calendar".

Calculate pi to seven decimal places.

Representative works. "Anbian Treatise".

Song Yingxing (1587-c. 1666) was a representative work of Chinese scientists in the late Ming Dynasty.

His works are of precious historical and scientific value. He made it clear that zinc was a new metal and for the first time documented how it was smelted. This is one of the important achievements in the history of ancient metal smelting in China.

Shen Kuo (1031-1095), a scientist and politician in the Northern Song Dynasty. In his later years, he wrote "Dream Creek Writings" in Zhenjiang Mengxi Garden. One of the most remarkable scientists in the history of our country.

He is proficient in astronomy, mathematics, physics, chemistry, geology, meteorology, geography, agriculture and medicine.

Villains: Li Lianying of the Qing Dynasty, Zhao Gao of the Qin Dynasty, Wei Zhongxian of the Ming Dynasty. Positive characters: Zheng He of the Ming Dynasty, Sima Qian of the Han Dynasty, Cai Lun of the Han Dynasty. Facts have proved that if you want to practice this skill, you must first go to the palace.

Zhang Heng in the Han Dynasty, Shen Kuo in the Song Dynasty, Guo Shoujing in the Yuan Dynasty, and Song Yingxing ...... in the Ming Dynasty

Zu Chongzhi, Li Daoyuan, Jia Sixian.