Rockets are modern vehicles for launching satellites and spaceships, which were first invented by our ancestors. At first, it was only used for China New Year holidays.
It is used to set off fireworks. In the13rd century, people used rockets as weapons of war, which were later introduced to Europe. The first person who thought of flying with rockets was the clever China people-ten thousand yuan households in the Ming Dynasty. /kloc-At the end of 0/4th century, 47 homemade rockets were tied to chairs by Ming literati, and they sat in chairs with big kites in their hands. Imagine using the thrust of a rocket and the power of a kite to fly. Unfortunately, the rocket exploded and thousands of families gave their lives for it. This statement was made by foreign experts when talking about human exploration of space, which was not put forward by our country before. At present, only rockets can send people into space. According to this standard, the earliest manned space flight should be about 600 years ago. Western scholars research, Wan Hu is "the first person in the world who wants to fly by rocket", and thousands of families fly forward with the rising power of kites, which few people can think of. To commemorate thousands of families, a crater on the moon was named after this ancient China man.
There is also a story in Shan Hai Jing, an ancient book in China: Once upon a time, there was a strange country in the west [jρ_ gūng Kigong]. People in that country can hunt birds and make flying cars. People can fly away in a speeding car with the wind. During the soup (1), the west wind blew, and foreigners and flying cars came; Ten years later, a shareholder wind blew people and flying cars back.
Mozi attached great importance to practice, and once made the instruments for guarding the city with his own hands, and his skills were superb. It is said that he led more than 300 disciples to study the principle of flying, and it took three years to make a flying wooden bird, which was called "bamboo ■[què que]" or "wooden kite [yuān injustice]" in ancient books.
This matter is recorded in many ancient books in our country. Some said, "Mozi is a wooden kite. It took three years to make it, and it was defeated (rotten) in one day." Some said: "Mozi cut bamboo for ■, and he can't fly for three days." Some people praised the wooden bird, saying that it reflected the highest level of production technology at that time. Some people laughed at Mozi, saying that he wasted three years to build a wooden bird, and it broke after flying for a day.
According to the materials recorded in ancient books, we can infer that it is a bird-shaped aircraft made of wood or bamboo. It can use the power of falling on a high slope or rely on wind to rise and fly in the air for a long time. This way of flying in the air by air buoyancy is called gliding. However, some people speculate that the wooden bird is made by imitating birds, so it may fly by flapping its wings instead of gliding. This way of flying with flapping wings is called flapping wing (also called flapping wing) flight. As for how big the wooden bird is, there is no clear record in ancient books. However, judging from the three years' painstaking research and trial production of 300 people, it can be inferred that the production scale of that wooden bird is relatively large, not just as big as a bird.
According to myths and legends, Chang 'e flew from China, which should be regarded as an early dream or tentative expectation. In the ancient mythology of China, people flew directly against the sky without any tools. The Monkey King's somersault is China's best flying idea. Flying against the wind can also embody the flight principle first discovered by China, that is, applying the buoyancy of the wind.
In the reality of flying, there was a man named Wanhu in the Ming Dynasty. He first thought of using the thrust of the rocket and the buoyancy of the kite to send himself into the sky, but at last the rocket exploded and he died.
The key to successful flight is to build a plane with "mechanism". At this point, there are many records in China's ancient history books. There is a story in the ancient book Shan Hai Jing: Once upon a time, there was a strange country in the west. People in that country can hunt birds and make flying cars. People can take a speeding car and fly away with it. When Tang, the founding monarch of Shang Dynasty, was in power, a westerly wind blew, bringing foreigners and flying cars. 10 years later, a shareholder wind blew people and flying cars back. In this story, people not only stop pinning their hopes on the flying "dragon" they have never seen before, but also stop relying on the gods. They want to make an instrument that can fly in the wind by themselves.