Vol 3 Chapter 973: -Car building

Facing many faces full of curiosity, Ji Thief smiled: "This is our Harmony bullet."
Speaking skills, Ji thief slapped his hand, Usma cleared his throat, and explained to the engineering tribe people according to the same thing Ji thief said yesterday.
In the end, Usma didn't forget to add something to herself: "The patriarch said, if we can make this carriage this time, we will give all of our engineering department two days off, how about it? Happy!"
The people of the tribe were stunned at first when they heard the words, and then screamed wildly.
As we all know, the Engineering Department has no vacation.
Although the engineering department has a high salary second only to the hunting department, it is tired.
Can you be upset now that Ji Zei said about the holiday?
Usma looked at the triumphant Chongji thief, it seemed to be asking for credit, as if he was talking about the patriarch. My words drove everyone's emotions.
The thief was a little speechless, and looked at Usma straightforwardly, as if she had seen through what Usma was thinking.
This old boy, in front of so many people, said that he had promised to take a holiday. It's all right now. After the carriage is out, he can't help it even if he wants to cheat.
Mmp.
At the moment, the thief's skin smiled at Usma without a smile: "Okay Usma, you can."
When the thief saw through what she was thinking, Usma smiled awkwardly, and said: "Then what the patriarch, don't blame me, I am not on insurance, you often say that you have to leave behind in everything."
The thief hummed twice, making Usma feel more and more confused.
"Then patriarch, I will take the people to make a carriage first."
The thief waved his hand and said, "Okay, let's go."
Usma was relieved and relieved.
He hurried away.
It’s not difficult to make horse-drawn carriages, because it’s not a high-end project. In addition, the tribe has already processed the square wood used to make trebuchets. For the holidays, Usma also worked hard. With a wave, he moved these square logs that were originally trebuchets onto the cart.
With planks and square timbers, six car wheels were made in just one day.
As for the wheel, Usma directly took a few smarter deputies in the department and worked with the thief to study together.
Regarding the making of the wheels, the thief and Usma had a long-term solution after discussing it overnight.
They first took a small square log, cut it to a thickness of ten centimeters, and polished out twenty logs the size of one side. Then, around the periphery of the log, there were eight straight logs of the same length connected with each other. The inner circle is a small log, and the outer circle is joined by a circle divided into eight parts and spliced ​​together.
After the whole wheel is made, it will look exactly like those wagon wheels seen in the TV series.
In order to ensure the load capacity of the wheels, Usma added a whole layer of logs on the periphery, and then reinforced with copper nails and tenon joints, and covered with a layer of copper skin. It took a full seven days to build the twenty sets of wagon wheels.
Next, drill the wheel, put in the load-bearing rod, and lift the finished car disc on the rod. There is a wooden card smeared with grease, which happens to be stuck to the rod with a layer of copper. Driven by it, the disc will not detach from the rod.
Not to mention that in order to ensure the firmness of the disc and the rod, Usma has also specially lengthened the wooden card a lot, even if the road is bumpy, there will be no accidents.
The first carriage, no. To be precise, it was a cart turned out. For the sake of listening, Ji Thief still called it a carriage.
The carriage was parked on the tribal clearing. At the front of the carriage, there were two sticks of square wood that were used to set up horses.
The people in charge all formed a circle, including Tushan who had returned with the team earlier, pointing to the carriage.
The thief instructed Oga to bring a horse from the Hussar Department, and then made a rope of hemp rope and animal skins on the horse. Together with Usma, he sat on the cowl of the carriage, holding the newly made small leather. Whip, gently twitched at the horse's buttocks, and shouted: "It's a good thing~"
Driven by the pain, the horse moved forward.
With that, the wheels of the wagon turned and creaked.
The people in charge around him made surprise sounds at the same time, and Ah Wei blinked and said: "This way, it's a lot easier."
Oga felt a little distressed: "It's just too wasteful, war horses are all treasures."
The thief handed the whip to Usma to continue the display, then jumped out of the carriage, clapped and walked down: "The horse-drawn carriage is just a demonstration. Later, when we have tuned all the bison, we can use them to pull the cart. War horses, of course you can't just pull this kind of simple car."
"Pull a cart with a bull? But isn't this a cart?"
The thief was speechless: "It's just a title. It doesn't mean that it must be called a horse-drawn carriage and it must be drawn by horses. You know? Moreover, this kind of carriage was originally born for the purpose of transporting goods. It's perfect."
The people in charge suddenly realized.
At this moment, Usma, who was driving the carriage to show everyone, suddenly exclaimed.
Everyone followed the sound and looked up, only to see that one wheel was crushing on a stone. No matter how hard the horse was, the carriage only turned on one side, while the other side was stuck behind a stone the size of three fists.
The thief frowned and looked back. Usma gasped a few times. The horse just pulled the cart and circled the center of the stone.
Look at the jammed wheel again. The whole wheel is still. Although the axle is rotating, it is completely useless.
Everyone went to see Ji Thief, and they didn't understand what was going on.
The thief also frowned and said: "Usma, don't smoke, come down."
Hearing that, Usma stopped his hand movements, jumped out of the carriage and walked over, with a depressed look: "Master Patriarch, is it because one horse is too weak? How about two horses? ."
Aliang teased Usma: "No Usma, maybe you are too heavy."
When the words fell, everyone in charge couldn't help laughing.
Usma gave a white glance: "Go, you are heavier. In our tribe, the body is better than mine."
A circle of people looked at Usma expressionlessly. At the end, Usma was shy. She coughed and asked the thief: "Master Patriarch, is there something wrong with us?"
Ji thief walked over and looked at the jammed wheel, nodding his head.
Everyone screamed.
Ji Zei pursed his lips and said: "When designing the drawings, I only thought about the wheel problem. I didn't expect the friction force and miscalculated."
Everyone didn't understand what friction meant, so they looked at Ji Thief with a puzzled expression.
Ji Zei reached out and touched the polished round rods and the inner wheels of the drilled round holes, and said: "There is no friction, how can you move. Flat ground is fine. If you walk on a slightly rugged road, I am afraid it will be fundamental. No way."
Hazel blinked, "Well, should we make a hole in another shape? It's like the triangle you said when we were building a house."
After Zhen's words were finished, everyone looked back at her.
For a while, Zhen was a little shy: "Well, when I looked at the design drawings before, I felt that there were some problems, but I didn't figure out where the problem was."
The thief clapped his hands and stood up: "It's okay, sister Zhen, you are right. Use the drill and load-bearing shaft to be triangle. Usma."
Usma hurriedly agreed.
Ji Thief said: "Follow the modification mentioned by sister Zhen. Now it's just a pair of wheels except for the problem. If you modify it, it should be very simple. It should be completed in three days."
Usma nodded: "Okay, Lord Patriarch, I will do it now."
The thief nodded, and while letting Usma go, he thanked Zhen in a thousand ways.
In front of so many faces, Zhen blushed.
Logically speaking, Zhen used to be a witch from the Frost Valley tribe. She is truly one person and more than ten thousand people. It is definitely not possible to be embarrassed by a few words of thanks.
But, you know, the person who said these words of gratitude was not someone else, but the thief who had haunted her dreams.
If you change to Usma and say these things, you see if Hazel blushes or not, it will be over.
Zhenzheng was ashamed, and the thief touched his nose and muttered: "Damn, this time I miscalculated, it's a big ugly."
Zhen was secretly happy, saying that as long as he could help the Warriors.
In fact, she knew from there that even if he didn't say anything, Ji Thief could figure out a solution.
After all, physics is not learned in vain. It can only be said that Zhen's thoughts ran into Ji Thief's thoughts ahead of time.