What did Zhang Heng invent when he grew up, and what did Zhang Heng invent?

Seismograph. Zhang Heng, whose name is Pingzi, was a native of Nanyang Xi'e (now Shiqiao Town, Nanyang City, Henan), a great astronomer, mathematician, inventor, geographer, cartographer, writer and scholar in the Eastern Han Dynasty of China. The main achievements have created a precedent for astronomical and geographical research in China, and his representative works include "Lingxian", "Geodynamic Instrument", "Four Sorrowful Poems" and so on.

He died in 139 AD. In order to commemorate Zhang Heng's exploits, people named a crater on the far side of the moon "Zhang Heng Crater", and the asteroid 1802 was named "Zhang Heng Star". Later generations called Zhang Heng "Kesheng".

Zhang Heng is one of the representatives of the Hun Tian Theory in the middle of the Han Dynasty; He pointed out that the moon itself does not emit light, and that moonlight is actually a reflection of daylight; He also correctly explained the causes of lunar eclipses and recognized the infinity of the universe and the relationship between the speed of the planets and their proximity to the Earth.

Zhang Heng observed and recorded 2,500 stars, created the world's first leaky armillary sphere that can perform celestial phenomena more accurately, and the first instrument to test the first - the wind and ground motion instrument, and also manufactured a guide car, an automatic memory drum car, a wooden bird that flew several miles, and so on. In addition, there is some research on the calendar.

Guo Moruo, a famous Chinese writer and historian in the 20th century, commented on Zhang Heng: "Such a well-rounded figure is rare in world history. ”

Zhang Heng invented the armillary sphere, the geodynamic instrument, the ruilun pod, the guide car, the Jili drum car, the solo flying wood carving, and the topographic map. Zhang Heng was a great astronomer, mathematician, inventor, geographer, and writer in the Eastern Han Dynasty. In astronomy, Zhang Heng is the author of "Lingxian" and "Armillary Illustrium"; Mathematical works include "The Theory of Arithmetic"; Literary works are represented by "Erjing Fu" and "Guitian Fu", etc., and are known as the "Four Masters of Han Fu" together with Sima Xiangru, Yang Xiong, and Ban Gu.

Zhang Heng, whose name is Pingzi, a native of Nanyang and Xi'e, has studied hard since he was a child, and left his hometown to study abroad after the age of 16. At the age of 22, Zhang Heng was invited by Nanyang Taishou Baode to become the chief bookkeeper, in charge of clerical work, and since then he has entered the official career. At the age of 58, he was transferred to serve as the state minister of Liu Zheng, the king of Hejian.

In 139 AD, Zhang Heng died of illness at the age of sixty-two.

Zhang Heng has made outstanding contributions to the development of Chinese astronomy, mechanical technology and science, and is one of the representatives of the armillary theory in the middle of the Eastern Han Dynasty, and is known as the "Wood Saint" by later generations, because of his outstanding contributions, the United Nations Astronomical Organization named a crater on the far side of the moon "Zhang Heng Crater", and the 1802 asteroid in the solar system was named "Zhang Hengxing". In order to commemorate Zhang Heng, the descendants built the Zhang Heng Museum in Nanyang.

Zhang Heng - Ground motion instrument.

Zhang Heng invented the earliest geodynamic instrument during his tenure as Taishi Ling, called the Houfeng geokinetic instrument. According to the "Book of the Later Han Dynasty, the Biography of Zhang Heng" records: the geodynamic instrument is cast with fine copper, with a circular diameter of eight feet, the top cover is protruding, the shape is like a wine bottle, and it is decorated with the image of turtles, birds and beasts in the Seal Wen Mountain.

There are big pillars, and there are eight roads to close, and the machine is closed. It has eight directions, each with a dragon with a copper bead in its mouth, and a toad corresponding to each dragon. If there is a ** occurrence on either side, the copper beads contained in the dragon's mouth in the direction will fall into the mouth of the toad, so that the direction of the occurrence of ** can be measured.

Summary. Zhang Heng was a prominent scientist and inventor during the Eastern Han Dynasty in China, who invented many things. One of the most famous is the geokinetic instrument, which is an instrument that can detect the direction and distance.

In addition, Zhang Heng also invented the armillary sphere, which is used to observe the stars and determine time; invented the watertight chamber, which was used to inspect ships for water leakage; A new type of gunpowder was created, which was later called Zhang's explosives, and there were many other inventions and contributions.

Zhang Heng was a prominent scientist and inventor during the Eastern Han Dynasty in China, who invented many things. One of the most famous dust is the geokinetic instrument, which is an instrument that can detect the direction and distance of the world. In addition, Zhang Heng also invented the armillary sphere, which is used to observe the stars and determine time; invented the watertight chamber, which was used to inspect ships for water leakage; He created a new type of gunpowder, which was called Zhang's explosives by the later Shen imitations, and many other inventions and contributions.

In addition to the above-mentioned inventions, Zhang Heng has also made important contributions in the fields of medicine and mathematics. He studied human anatomy and wrote medical works such as the Sutra of Miracles; The concept of "multiplication table" was proposed, which pioneered the idea of "cyclic decimals" in Chinese mathematics. At the same time, he is also a famous literary scholar, and his "Returning to the Fields" is known as a masterpiece in the history of ancient Chinese literature. Overall, Zhang Heng was a versatile Lu He outstanding person who made outstanding contributions to the development of ancient science, technology and culture in the Zhongzhuchen Kingdom.

The things invented by Zhang Heng include a geodynamic instrument, a guide car, and an improved armillary sphere. Zhang Heng is a great astronomer, mathematician, inventor in the Eastern Han Dynasty of China, etc., he has made great contributions to the development of Chinese astronomy and science, and is known as the "Wood Sage" by later generations.

Zhang Heng was a great astronomer, mathematician, inventor and so on in the Eastern Han Dynasty of China. He made great contributions to the development of Chinese astronomy and science, invented the geodynamic instrument, the guide car, and improved the armillary sphere, and was praised as the "Wood Sage" by later generations.

In 132 AD, Zhang Heng invented the earliest geodynamic instrument, that is, the wind geodynamic instrument, it has eight directions, every other direction has a dragon with copper beads in its mouth, and there is a toad with a mouth corresponding to it under the dragon, as long as there is a ** occurrence on any side, the copper beads contained in the corresponding dragon's mouth will fall into the toad's mouth. Sparrow's edge.

The armillary sphere is an improvement on the basis of the armillary sphere invented by Geng Shouchang in the Western Han Dynasty, which is mainly used for observing celestial bodies. The function of the compass is not much different from that of a modern compass, consisting mainly of one or two two-wheeled one-wheeled carts, and no matter which direction the car is facing, the arms of the wooden people inside are pointing south.