Ma Jun (200-265), born in Fufeng, Cao Wei (now Xingping City, Shaanxi Province), was a mechanical manufacturer. Teenagers play, because the family is poor, three meals are greasy, and they are not enterprising. Later, they became doctors and lived a poor and leisurely life, so they improved the silk loom. During the Wei Dynasty of the Three Kingdoms, Qin Lang, the general who often attended Gao He, thought that there was no south guide car in the world, while Ma Jun thought there was. Wei Mingdi wanted Ma Jun to do it, and he soon succeeded.
Ma Jun is a famous inventor in the history of China. Because of his profound attainments in transmission machinery, he has a good reputation as a skillful hand in the world. He is good at inventing machines and weapons. He was appointed to supervise the construction of the Zhong Hua Temple.
Ma Jun's Concrete Invention
1. At that time, the silk loom was complicated in structure and inefficient. There are 50 healds and 60 healds. All the looms he improved were 12 sets, and the efficiency was improved by four or five times.
2. Created a water pump for irrigation, which is a keel waterwheel (rollover), which can continuously lift water with high efficiency, and played a certain role in the development of productivity at that time;
3. It is considered that Zhuge crossbow can be improved and its efficiency can be increased by five times.
4. Trial-produced wheeled trebuchet as siege equipment can continuously fire bricks and stones up to hundreds of steps;
5, the south guide car, there is a villain in the car, his finger direction is south, made of gear principle;