According to the Records of Suzhou Prefecture, during the Qing Dynasty in China, there was a poor carpenter Xu in Suzhou. While listening to his neighbor's Classic of Mountains and Seas, he talked about the flying car in gǒng country, which kept him awake for a long time, because he had long wanted to make a flying car that could be "famous all over the world". He is determined to start the experiment. Xu was fascinated by the experiment. He groped for 10 years. After hundreds of setbacks, he finally built a flying car that can be more than a foot above the ground and can cross the river without a bridge. According to official records, as long as you press the pedal hard up and down, the "flying car" will "turn around and gallop away, more than a foot above the ground." This is the first human plane in the world. The experiment was successful; Xu was so happy that he didn't know why, but he was very dissatisfied because it flew too low. He is determined to build a better "flying car" so that he can fly over Taihu Lake and the peaks in the lake! However, Xu is a poor carpenter. After 10 years of experiments, his originally poor family was completely deserted, and his wife quarreled with him. Poor Xu finally failed to complete the plan and passed away with a grudge. After Xu's death, his desperate wife blamed everything on this "flying car". In a rage, she picked up an axe, smashed Xu Yisheng's painstaking efforts and set them on fire. Therefore, today people still don't know the real secret of this "flying car".