What were the inventions in ancient China?

1, Zhang Heng invented the seismograph. The seismograph is a masterpiece created by Zhang Heng, a scientist of the Eastern Han Dynasty in China. During the Eastern Han Dynasty when Zhang Heng lived, earthquakes were frequent. Zhang Heng has a lot of personal experience about earthquakes. In order to master the national earthquake dynamics, after years of research, he finally invented the Hou Feng seismograph in the first year of Yangjia (AD 132), which was also the first seismograph in the world.

2. Movable type printing. Printing is one of the four great inventions of working people in ancient China. Engraving printing was invented in the Tang Dynasty and was widely used in the middle and late Tang Dynasty. In Song Renzong, Bi Sheng invented movable type printing. Although movable type printing appeared in Song Dynasty, it was not widely used, while block printing was still widely used.

3. papermaking. In the first year of Yuan Xing in the Eastern Han Dynasty (105), Cai Lun improved papermaking. He made paper from bark, hemp head, cloth, fishing net and other raw materials through crushing, mashing, frying and baking, which is the origin of modern paper. This kind of paper is easy to find, cheap and has improved its quality, so it is gradually widely used. In order to commemorate Cai Lun's achievements, later generations called this kind of paper "Cai Hou Paper".

4. gunpowder. China was the first country to invent gunpowder. In Sui Dynasty, the ternary system of saltpeter, sulfur and charcoal was born. Black powder officially appeared in the Tang Dynasty. Gunpowder was invented by ancient alchemists. From the Warring States Period to the early Han Dynasty, emperors and nobles indulged in the fantasy of immortality, which drove some alchemists and Taoists to refine the "elixir" and gradually invented the formula of gunpowder during the refining process.

5. lanterns. Around A.D. 1000, China people created lanterns, which were described in ancient books. There is a flat impeller on the lantern and a candle or lamp under it. The rising hot gas drives the impeller to rotate, which is the original application of the working principle of modern gas turbines.