"Here's the reason."
Yang Cheng took a closer look at the damaged wheel and discovered the problem.
The outer rim of the wheel is made of wood, and Yang Cheng naturally chooses very hard wood for making the wheel.
However, no matter how hard wood is, it is just wood.
After being used for a long time, the rim will be damaged when it encounters small stones and various debris, resulting in uneven surface, which will cause structural instability of the wheel, eventually causing the wheel to be damaged or even paralyzed.
"Yes, why did I forget to add something to the outermost part of the rim? Bicycles all have tires. How could primitive society not have wooden wheels?"
After Yang Cheng found out the reason, he felt relieved and turned around to look again.
Yan Lin and others were scolded so much that they couldn't even lift their heads. They were almost like ostriches burying their heads in the soil.
Mu Qing was still chattering: "How many times have I told you that your mission is to give birth to children for witches, and you are not just playing around, thinking about other things day by day, you know...
And you, Mai, you are also an old man in the tribe. Why don’t you understand anything? Do you just do whatever the witch tells you to do...
And you, Yanhu and Cangshi, you usually don’t care about them. At that time, you had a huge quarrel over who would be the witch. Now, why don’t you say a word..."
Seeing that Mu Qing was about to expand the scope of his scolding, Yang Cheng hurriedly stepped forward and said, "Okay, I don't blame Yan Lin and the others for this. I didn't forget to give the wheel something."
Mu Qing thought Yang Cheng was trying to excuse Yan Lin and the others, so he shook his head and said:
"Witch, don't talk to the witches. They need to be disciplined."
"Yes, they should be disciplined."
Yang Cheng glared at Yan Lin and Xing, who also thought he was trying to excuse himself. They were making faces for Yang Cheng.
"However, this is not the time. I have more important things to do. I need to redo two wheels, this time with a little something added."
Yang Cheng continued to talk to Mu Qing.
Seeing what Yang Cheng said, Mu Qing didn't dare to stop Yang Cheng from doing important things.
He finally closed his mouth and stopped scolding him. However, judging from the fact that he licked his dry mouth, Mu Qing seemed to still have some unfinished thoughts.
Except for Yang Cheng, everyone shuddered involuntarily when they saw Mu Qing's expression.
Immediately, no one wanted to stay with Mu Qingduo anymore, and one by one followed Yang Cheng to the open space where the wheels were made.
Yang Cheng asked someone to bring the broken wheel.
Although these two wheels have been damaged, the hubs and some spokes are still useful. They only need to re-make the rims and replenish the number of spokes.
Arriving at the open space, Yang Cheng asked all the extra people to disperse and do their own thing.
Only Yanhu and a few totem warriors who helped make the wheel were left, and then someone called Lulu over.
Lulu is making pottery.
I have been busy making wheels these past few days and have not burned any of the tribal pottery. I need to add something.
When she heard Yang Cheng calling her over, she was still a little confused and didn't know what was going on.
When I got to the open space, I heard that the wheel was broken. I was angry and funny at the same time.
Not only did it take her a long time to make this wheel, but it was also because Wu worked very hard when making the wheel. She didn't sleep much for several days, and she was tired before finishing the wheel.
However, in just one night, it was ruined by Yan Lin and Xing.
Immediately, Lulu "punched and kicked" Yan Lin and Xing. Her pink and tender fists made Yan Lin and Xing run away, begging for mercy.
Although Lulu knew that Yan Lin and Xing were pretending, she couldn't help but laugh.
Lulu just smiled. Yan Lin and Xing knew that she had calmed down a lot, so they stepped forward with a playful smile again.
Waited for them to play around for a while.
"Okay, don't make trouble anymore. If you make trouble again, Mu Qing will come over to discipline you again."
Yang Cheng scares them.
Mu Qing's reputation is that he is easy to use, so the beast-eared girls immediately stood up obediently and stopped playing around.
It's still the same process as before, first chop the wood, take the wood, and use a file or planer to make the wood into corresponding materials.
Finally, Yang Cheng was asked to use flame magic to bend the wooden strips and make them into wheel rims.
This is the second time I have made wheels. Based on the experience from the last time, everyone is familiar with making wheels this time and the efficiency is very fast.
Everyone knows what they want to do and what the finished product will look like.
So it only took two hours to complete the two broken wheels.
It took some more time to polish it again.
At this time, Mai carried the axle over, then the raft, and finally the mud ox.
Xiniu Niu looked at the group of bipedal beasts from the Qingque Tribe, and they were doing something in the open space, and this thing was something he had seen yesterday.
This time I learned the lesson, and without Yang Cheng's orders, I just puffed out the mud in my stomach on the ground with two puffs, and then stepped forward to nuzzle Yang Cheng obsequiously.
Yang Cheng pushed it away with a look of disgust.
"Go, go, come and rub me before you are clean today."
"Moo~"
The Niu Niu screamed in grievance.
"Witch, is it time to put the wooden rows on the axle?" Mai asked.
Yesterday, Mai already knew from Yang Cheng's mouth that these two round things that can run on the ground are called wheels, and the wooden stick connecting the two wheels is called an axle.
"No, don't worry about that yet."
Yang Cheng shook his head, waved his hand, and greeted: "Mai, first go to the warehouse and get a bamboo bucket of copper ore. Yanhu, come and stand up the wheel, and I will measure its diameter."
Several people responded and started working on their own.
Yanhu and Cangshi each lifted a wheel, while Yang Cheng held a rope and measured the diameter of the wheel.
After measurement, the diameters of the two wheels are almost the same, and there is no one larger and one smaller.
This was expected by Yang Cheng, because he relied on mathematical precision to make it.
After confirming that the sizes of the two wheels are almost the same, the next thing Yang Cheng has to do is simple.
Yang Cheng carved the measurement results on a straight bamboo strip, which was used to make the "tire" of the wheel.
"Witch, I brought the copper ore."
Mai shouted from a distance, dragging a bamboo tube full of copper ore behind him.
"Okay, you can put the copper ore here."
Yang Cheng asked Mai to pour the copper ore on a rough ground made of stones, and then said to Yanhu and Cangshi who were still holding the wheel: "Yanhu, Cangshi, you two tie the wheel with vines, and then Throw it into the river and soak it."
Throw it into the river and soak it.
What is Wu going to do?
Yanhu and Cangshi were a little confused, but they didn't ask any more questions.
Whatever the witch says is done.
