As early as the first century AD, Alexander Hilo had already discussed the machinery driven by water, wind and hot air. Later, people began to use wind and water power wind, windmills, watermills, and water mills in their life and production activities.
 

　　The advent of the steam engine at the end of the 18th century opened up the use of chemical energy, which greatly increased labor productivity and led to the industrial revolution. At the end of the 19th century, the invention and application of internal combustion engines provided the impetus for automobiles, locomotives, and ships, and led to the invention of the aircraft. The appearance of the human transportation industry has undergone tremendous changes, and it has greatly promoted the tremendous development of the machinery manufacturing industry.
 

　　From the end of the 19th century to the beginning of the 20th century, with the invention of steam turbines, gas turbines, jet engines, and rocket engines, the speed of transportation has greatly improved, people’s contacts have become more convenient, human activities have become more open, and the aerospace industry has been able to explore and further drive And promoted the development of other scientific and industrial sectors.