Who invented fireworks?

Li Yi, born in May of 1, was born in Liuyang, Hunan Province in the early Tang Dynasty and was praised as the "ancestor of fireworks" by later generations.

It is said that the famous doctor Sun Simiao once lived in seclusion in Liuyang, Hunan. It was because of him that Yi Lee was able to invent fireworks. Sun Simiao once gave Lee Jin a pack of gunpowder and asked him to pack it in a small bamboo tube, which might explode and make a loud noise after being lit.

After Li Yi returned home, she did the experiment according to Sun Simiao's method. However, Yi Lee found that the fireworks made of bamboo tubes are loud, but they are dangerous and easy to hurt people. Yi Lee wants to improve. After careful consideration and constant experiments, he finally succeeded in wrapping the gunpowder in a paper bucket-both ends were sealed with mud and one end was blocked with a fire line. In this way, the truly practical fireworks were born.

Introduction to fireworks:

Fireworks are also called fireworks, fireworks, fireworks and firecrackers. According to "China Fireworks and Firecrackers Standard-Safety and Quality", fireworks and firecrackers are defined as entertainment products that use pyrotechnics as raw materials and produce acousto-optic colors. Working people in China invented it earlier, and it is often used for grand ceremonies or performances.

Fireworks are actually similar in structure to firecrackers, and they all contain black powder and medicine. In order to achieve good performance, fireworks and fireworks bombs are filled with a lot of gunpowder for launching and explosion. For example, a fireworks bomb with a diameter of 20 cm will explode only when it rises to a height of about 200 meters after launch, and the radius covered by these points can be about 80 meters.