Rebirth: The Peak of Technology

Synopsis: The great Leonardo da Vinci pioneered the design of numerous advanced machines, but he could not bring them to reality because he lacked suitable materials that could meet his design requirements. In 1929, engineer Lilienfeld obtained the patent for the transistor, but it only became a commercial product nearly twenty years later in Bell Laboratories. In the 1970s, China designed the J-9 fighter jet, targeting Backfire and B1 bombers, with flight indicators reaching double 26 (altitude 2.6 kilometers, speed 2.6 Mach), but due to the lack of suitable materials and processing technology, it had to remain in the design stage. The J-10 and J-20, representing the highest level of China's aviation technology, were successively put into use, but because of the lack of engine materials that could withstand high temperatures and pressures, they could not have a 'heart' of China. This is an era where materials are king. Welcome enthusiasts to read and experience.