三国
Birth and death unknown. Word Deheng, Fufeng (now Shaanxi Xingping Southeast) people. Born poor, not very talkative, but the very ability to observe the thinking. Emperor Ming, the see was 50 warp loom who have 50 tread (pedal control boards), 60 warp by 60 chase points, it will be changed to 12 tread the loom, greatly improved efficiency. In Luoyang, the further invention of Irrigation and Drainage Water car, called the "rollover." It uses water as power, water can provide continuous automatic, easy operation and efficiency greatly increased. He also created guides of vehicles, improved Zhuge Liang Improving Connected Crossbows, improved siege vehicles with hair stone. He made "water transfer opera" to the power of water to mechanical wooden gear wheel to make puppets can automatically perform a very clever idea. Because of his deep skills in machinery manufacturing, at the time known as "the world were clever."