Mr. Feng Ru is good at research. He works as a part-time worker in the daytime, studies mechanics in the evening, and works hard for several years. He is proficient in 36 kinds of mechanical principles. He invented pumps and piling machines and made radio transceivers with excellent performance. In 1903, when he learned that the Wright brothers had invented the aircraft, he foresaw the military value of the aircraft and was determined to devote himself to the new aviation industry and serve the motherland.