Movable type printing is very simple, but it is actually a flexible use of molds.

The three brothers of the Tie family came with a tricycle that had been built.

Except for the chain and transmission, which are more difficult to do, other parts are not difficult to do.

Tie Da said with a smile: "I don't know if it is the same as what the county marquis thinks." ”

Li Zheng looked the tricycle up and down, and after riding it, he stepped on the pedal and moved.

After riding for a distance, I found that it was quite stable, most of them were wooden structures, and I felt that the load-bearing was not too good.

But it's a technical breakthrough.

Li Zheng rode his bicycle all the way into the village.

Tie Da followed all the way, and even he didn't realize that what he had created was so magical.

Riding all the way into the village, the villagers almost dropped their jaws when they saw Li Zheng stepping on those three wheels and passing by.

Two or three aunts in the village who were drying their clothes were also dumbfounded when they saw this scene.

I didn't know what to say for a while.

Li Zheng rode all the way to the gate of the academy, and a large group of children followed, all of whom came to watch this monster that could move on its own.

Cheng Chumo saw what Li was riding, and jumped up in shock, "Bah! What a monster this is! ”

Li Zheng wanted to stop the tricycle, only to find that he had forgotten to brake on the tricycle, and he stopped when he hit a tree.

Cheng Chumo stepped forward and asked, "Li Zheng, what kind of monster is this?" ”

"I haven't seen it." Li Zheng got down from the tricycle and said, "This is not a monster, this is a tricycle." ”

"Tricycles? Isn't it just three wheels? Cheng Chumo said with a surprised face.

"That's right." Li Zheng nodded, "Look at the three wheels, what a vivid name, I call this Jingyang tricycle." ”

Cheng Chumo looked around the tricycle again and again, "How is this thing made, it doesn't need to be pulled by livestock, and it can move by itself." ”

Yan Liben, who is now a master craftsman in the court, naturally can't let go of this kind of thing when he sees it.

didn't even attend class, and hurriedly followed, Yan Liben and Cheng Chumo observed this tricycle that could move on its own.

Yan Liben spoke: "Li Zheng, how did this happen. ”

"In fact, it is a kind of transmission principle." Li Zheng explained to Cheng Chumo: "I step on the pedal, and as the pedal moves, it will drive the rotation of the gears, and the gears will drive the chain, and the chain will drive the rear gears, and at the same time drive the wheels to rotate." ”

"So it can move on its own?" Yan Liben asked.

"It's that simple."

Yan Liben grabbed the back of his head, looking at the structure of this tricycle is indeed very simple.

It's a little too simple, but no one has made such a simple thing.

Yan Liben said with emotion: "The old man knows that the craftsmen of the Mo family were ingenious, and how many crafts in this world have been lost. ”

As he spoke, Yan Liben's expression also began to become excited, like a yearning for the Mo family and the public loss.

In ancient times, when the industry was not yet developed, many craftsmen would regard Gongyi and Mojia as their ancestors.

They are the ancestors of the craft world, and there are so many craftsmen who have been handed down to future generations today.

Yan Liben asked, "Li Zheng, since it's so simple, why didn't you make this thing earlier." ”

"There was no demand before."

"Demand?"

Li Zheng said: "Yes, it is demand. In the past, there were not so many goods to be pulled in the village, but now there are more and more businesses in the village, and there are only two cows in the village, but now it is more convenient with this tricycle. ”

Hearing Li Zheng's words, Yan Liben looked up to the sky and sighed: "It turned out to be for convenience." ”

Li Zheng said again: "Is it possible, am I still taking a walk to relax?" ”

Yan Liben asked anxiously, "I don't know when the county marquis will find it inconvenient." ”

Li Zheng looked at Yan Liben strangely, "Why did Master Yan say this?" ”

"If the county marquis can create more strange things, I hope the county marquis can inform me."

It can be seen that Yan Liben's desire for craftsmanship is in his heart.

Li Zheng sighed with emotion: "In fact, these are all knowledge, I have recorded in the book of the academy, this is the use of a principle of power transmission, we can shake the trunk of the tree, when the trunk shakes, the branches will also shake, and then the fruit on the tree will fall, I don't think I need to say more, Master Yan must also understand this truth." ”

"This old man naturally understands, it's just ......"

Yan Liben sighed again after speaking, and arched his hand and said: "Xia Guan didn't think about it so much, over the years, the old man has seen many craftsmen, and they are all proud of their craftsmanship, but how could they ever think about what kind of things they made. ”

"The old man knew since he was a child that the way of craftsmanship was always to benefit the world, but he became a vanity fair for those craftsmen to compete in their crafts, how is it not a kind of sadness, only care about the fine competition but do not know how to create, it is really sad."

Li Zheng comforted Yan Liben and said: "This is a matter of expanding knowledge, and it is right to pursue exquisite craftsmanship, which is indeed something to be proud of." ”

Whether it is from the pre-Qin period to the current Tang Dynasty, craftsmen are the ancestors of all craftsmen in later generations.

Datang's horizontal knife craftsmanship has been very exquisite, until more than a thousand years later, the manufacturing and forging technology of horizontal knives will still be talked about by later generations.

These are all the crystallization of wisdom left by the ancestors and the generation of Datang.

Even though I know more advanced forging techniques, I can't forget where my knowledge comes from.

Cheng Chumo said excitedly: "Li Zheng, can I try?" ”

"Of course, even though Brother Chu Mo tried, I still tried the quality of this tricycle, and there are still many things that need to be improved."

Cheng Chu smiled silently and stepped onto the tricycle.

"Even if you try, don't be polite."

"Good!" Cheng Chumo took a deep breath and pressed the pedal hard.

Under Cheng Chumo's brute force, the speed of the tricycle is very fast, this guy completely treats the tricycle as a horse, blindly pursuing speed, which is Cheng Chumo's three views, there is no fine food for him, what can be eaten is good food.

Wine that is strong enough is good wine, so much so that now Cheng Chumo is still haunted by the first bowl of wine he gave him, and it seems that the alcohol content of the spirits in the Cheng family wine shop is not very satisfied.

Yan Liben looked at the tricycle that could be driven quickly without being pulled by a horse, and almost burst into tears.

The tricycle does not need to be pulled by animals, it does not need to be pulled by people, and you can move yourself by pressing the pedals.

Li Zheng noticed Yan Liben's gaze at him, as if in the eyes of this guy, he was Lu Ban alive.