On one occasion, the Yellow Emperor led his ancestors to migrate to the northern Loess Plateau. The forest here is dense and the terrain is flat, which is convenient for long-term survival. They had just settled down when a strong wind suddenly blew one day. The Yellow Emperor immediately ordered all ancestors to hold the tree and hide in case the strong wind swept them away. Huangdi only cares about the safety of others. Unexpectedly, the sun hat he was wearing was blown off by the strong wind.
He quickly grabbed a small tree and squatted down on the spot. The Yellow Emperor found that his big hat was swept to its original place by the strong wind and did not fall to the ground. What is the reason? The Yellow Emperor cut a branch, tied it into a circle, put it on the ground and pushed it forward hard. It rolled less than ten feet and fell down again. Huangdi was an extremely clever man since he was a child. He pondered for a long time.
Then, I tied a circle, tied a cross between the two circles, cut a long branch, tied the two circles at both ends of the branch, and put them on the ground to push forward. Although it didn't fall this time, it stopped not far away. At this time, Chang Xian, Hou Feng and Cang Xie came together and asked what the Yellow Emperor was doing.
The Yellow Emperor told three ministers what had just happened. After the wind of ingenuity, I quickly peeled off a piece of bark, tied it to the crossbar between the two circles, and pulled it forward with one hand. The two circles kept rolling and didn't land. So the wheel was invented.
Extended data:
The Yellow Emperor was in power for a long time, with strong national strength, political stability and cultural progress. There are many inventions and productions, such as words, music, calendars, palaces, boats, clothes and compasses.
According to legend, Yao, Shun, Yu, Bo Yi and Tang Dou are his descendants, so the Yellow Emperor is regarded as the ancestor of the Chinese nation. According to China's historical records, he unified the tribes in China after Emperor Yan. He calculated the calendar; Teach people to sow food.
Popularize words, make branches, make musical instruments and create medicine. Ji Shi: The emperor made a big noise as Jia Zi, and used ten days' work and twelve places' support, which is still in use today. The lunar calendar is the 60th birthday of Taoism.
Baidu encyclopedia-Huangdi