"Well, this thing is good." Xi Lao said with the drawings that Shang Wen threw on the table.

"Shangwen, what is this thing called, I look at this thing with gears and wheels. It seems to be some kind of car. Xi Lao asked.

"Oh, my happy old man, you're here." Shang Wen rolled over.

"I'm getting annoyed. This airship is dying of me. Shang Wen scratched his head and said.

"You haven't told me what this thing is called." Xi Lao asked, pointing to the drawings.

"It's called a bicycle. As long as a person rides on it and pedals with his feet, he can walk. And it's lightweight, and it carries more things than people walking. The speed, although it can't catch up with horseback riding, but it's much faster than walking. Shang Wen explained.

"This thing is very good, can this be made?" asked Xi Lao.

Shang Wen shook his head.

"I can't make it. How can it be. Xi Lao asked.

"I can't make it. These things need to be iron. The current technology of making iron. Not in place. Plus the materials and processing required for the wheels. Difficult! Shang Wen said reluctantly.

"And this thing. I'm using it for reference, and materials don't solve the problem. It's hard to do anything else. Don't look simple. But process it up. It's harder. Shang Wen poured a glass of water and said.

"Yes, yes." Xi Lao looked at this thing and nodded.

"I want to give it a try. What do you think?" Xi Lao said.

"Give it a try?" Shangwen asked.

"That's right." Xi Lao nodded and said.

"This thing is so good. Why not make it. If you can't use iron, you can use wood. And bamboo. I'll do both. Xi Lao said.

"What?" Shang Wen asked in disbelief.

"What's so hard about that?" Xi Lao said proudly.

"I was a carpenter before I became a carpenter. I learned the elder. They are all made for the farmers. Later, he learned to be a craftsman. Xi Lao said happily.

"That's fine. Look at this. Do you have a solution? Shang Wen hurriedly took a few other drawings and let Xi Lao take a look.

Xi Lao looked at it in detail. The face is ugly. Then I changed it. The brow furrowed even tighter. Shang Wen took a look. Gotcha, it's no fun.

"Your drawings. Very good. But the difficulty of processing is too great. Xi Lao put down the drawings and said.

"I think you should replace the iron stuff with the wood one." Xi Lao said.

"I want to, too. But the wood is too heavy. If you put it on, you can see the difference between the front and back at once. The airship is going to fly. Weight. Weight matters. Shang Wen was a little annoyed.

"This, this." Hi Lao pondered.

"I also wanted to use wood, but the overall weight suddenly exceeded the standard. Lift will have a big impact. It's not easy to control either. So far. It simply doesn't work. If iron pipes are used. The weight may be reduced. But the wood is solid. I can't do that. Shang Wen said.

"I have a way to do this." Xi Lao said after listening.

"What's the solution?" Shang Wen asked.

"Hollow it out or simply make it out of bamboo." Xi Lao said.

"What's this method?" Shangwen asked.

"Just tell me how to do it." Xi Lao said.

"It's simple. Just make gears and chains. Everything else depends on you. It depends on whether the thing is coincidental or not. Shang Wen patted Xi Lao's shoulder.

"Okay, what you said. You go for it. That rudder or something, you can only solve it. I told you. Just hollow out the center. Hit a few bamboo shoots and catch them, and it's fine. Xi Lao said.

"Okay, I'll arrange what I said, and I'll discuss it with you." Shang Wen said. With that, Shang Wen went outside the tent.

Ki Lao looked at the drawings of the bicycle. Decided to do your own research. This thing shouldn't feel difficult. You can solve it yourself. So Xi Lao took the drawings and came to his tent.

The tent was full of bamboo and wood. Xi Lao took out a bamboo soaked in oil. This type of bamboo is very tough. And the sturdiness is not as bad as those iron pipes. Those iron pipes are very difficult to process. And it's not practical at all. Because of these reasons. Xi Lao is particularly fond of bamboo.

Xi Lao picked up the knife and slashed it flexibly with his wrist. A bamboo pole that has been laid with bamboo shoots is ready. Then connect with each other. Then, according to the pattern drawn on the drawing, continue to process. Soon the triangular frame of a bicycle had already taken shape. If I am processing. Would definitely think this is a bike from the future. Xi Lao happily looked at it. See almost. Just continue to work.

At this time, Shang Wen took the drawings and found the carpenter one after another. Let them work on the cruciform rudder. But they were stumped all at once. They say they don't know how to build ships. Shang Wenqi ah. I want to beat them to death with sticks. It took Shang Wen a lot of words to explain clearly. The carpenters finally agreed to think of a way. For hollowing out. They also say do their best. Shang Wenming is white, what does it mean to do your best. No way. These people who came to Guyang Iron Works are not very good technical backbones. Because there are still heavy production tasks over there. Manufacture of rockets and grenades. If you can't do it, wait to cut off your head.

Shang Wen reluctantly walked out of the carpenter's workshop. Came to the ironworks. Find Li Er. Show it to Li Er. After Li Er finished reading it. "This can't be done." Shangwen collapsed.

"You're an ironworks." Shang Wen asked confidently.

"yes. I'm an ironsmith, but it's not a blacksmith. Only iron blocks are produced here. Li Er said with a twisted face.

Shang Wen didn't say anything. I took the drawings and went to the blacksmiths to discuss.

At the blacksmith, Shang Wen took a lot of effort to explain clearly. But the blacksmith was embarrassed and said, "This thing is too difficult." "There was no way, Shang Wen had to let them do it themselves. Shang Wen finished all this and felt his mouth dry. It's just too hard to explain something ahead of its time. In particular, the quality of these practitioners. Ability to comprehend. It's all passive acceptance. Rather than active exploration. If that's the case, I'm still in Shangwen, but it's going to be difficult.

Shang Wen sat weakly at the gate of the camp. Watch the people coming in and out.

The soldiers of the Qin army drove a group of Huns. This time, Shangwen saw something different. These Huns all had a ring on their foreheads. I don't know what is written in the ring. However, Shang Wen thought, it must not be a good word. These Huns, several people tied together. Then he walked out of the camp like a sheep.

It seems that the last riot incident has touched the top. These actions must have been done as a precautionary measure. Shangwen stood up. Silently watched the group leave the camp. Their direction is south. You don't have to think about it, you know what they're going to do. Build a road. A road of blood and tears of the Huns. Shang Wen was silent.