254 BC, Handan.
Chen Du traveled through time. The first thing he did when he opened his eyes was not to check the time, but to pick up a wooden stick and beat away all the Zhao boys who were beating up a child.
The child's face was covered with bruises. He squatted under the wall and asked him: "Why did you help me?"
"Because they blocked my sunshine."
The child was silent for a while: "My name is Zhao Zheng."
Zhao Zheng. Ying Zheng. The future Qin Shihuang. Five years old.
Before Chen Du had finished digesting this information, the child had already come out with a pottery basin and applied cold water to his wounds. The technique is very stable, I said it was taught by my mother, and she coughed.
"What can you teach me?"
Chen Du picked up a dead branch from the ground and drew a crooked circle: "Pulley. Give me three days to lift something you can't carry alone."
From building the first steel-making furnace in a mass grave to hammering out the first knife blank with a hydraulic forging hammer. From the field ridge to recognize the familiar soil, go to the experimental field to use wheat straw to measure radish seedlings. Ying Zheng went from being chased and beaten by protons to the First Emperor who swept across the world. Chen Du was always squatting next to him, blowing the bellows and drawing drawings. Occasionally, his feet would be hit by rocks, causing him to jump on one leg and scream.
"Sir, when will the iron pot be ready for cooking?"
"Can you please stop carrying the iron pan at this time!"
Many years later, Ying Zheng stood at the gate of Xianyang Palace and watched the Wei River flow eastward. He held up the wheat straw that was full of scales and compared it. The Weihe River was too wide to measure. He carved a line on the bamboo slip: Weihe River is immeasurably wide.
Then he walked into Xianyang Palace, his back straight, just like the day he left Handan.
How can I say that I have no clothes, but I share the same robe with you?