What is a rocket?

Rockets are tools for space flight. The essence of rocket is unmanned aerial vehicle, also called spacecraft. People use all kinds of rockets for only one basic purpose, that is, to carry objects through space. Rocket rocket is an aircraft that propels forward by the reaction force generated by the rocket engine injecting working medium. It carries all propellants by itself, does not depend on the external working medium to generate thrust, and can fly in the dense atmosphere or outside the atmosphere.

The origin of rockets

Rocket is a kind of projection weapon with a long history, and the ancient rocket in China is the originator of the present rocket. As early as A.D. 1232, when Song Lizong was five years short and Song Jun was defending Bianjing. It was used against the Yuan Army, and later rocket technology was spread to Europe through Arabs. /kloc-In the 8th century, India used a lot of rocket weapons in many wars against the British and French armies, and achieved good results. Therefore, it promoted the development of European rocket technology.