I was engaged in infrastructure construction in the Han Dynasty [Transmigration Book]

Liu Tan knew about the spinning wheel before, but he hadn't seen the real thing of the spinning wheel very much. To be precise, it was the real thing of the complete spinning wheel.

Basically, there are only wrecks left in the museum. As for the restored spinning wheels, they are all relatively recent. For example, the spinning wheels of the Han Dynasty seem to only exist in records.

However, he just turned around the spinning wheel twice curiously, and when he turned his head, he saw that Huo Guang, Wei Deng, Li Ling, Wei Buyi and Jiang Chong were staring at him almost in the same movement.

Liu Tan supported the spinning wheel and asked, "How did you gather so much together today? Hurry up and talk about something, why are you all staring at me?"

The five looked at each other, but no one spoke.

Liu Tan couldn't bear it anymore and directly called the names and said, "Ah Guang, tell me."

Huo Guang was silent for a while before he said, "Your Highness... are you... wanting to learn weaving?"

Liu Tan:? ? ? ? ?

He looked at the spinning wheel under his hand, then looked at Huo Guang, and felt as if he vaguely understood why these people suddenly came to watch him.

Does this mean that he is not doing his job properly?

However, he probably underestimated the brains of his subordinates. Wei Deng is an upright child, and whispered: "Your Highness has already washed his hands and made soup for King Wusun. Do you still want to learn spinning now?"

Liu Tan raised his eyes to look at Wei Deng, and in an instant, Li Ling who was beside Wei Deng moved a few steps to the side, distanced himself from this silly boy.

Wei Buyi, as Wei Deng's elder brother, hesitated for a while, and finally patted the silly boy on the shoulder, sighed, and retreated to the side.

Everyone gave up their seats, and Liu Tan walked towards Wei Deng slowly with his hands behind his back, looked down at him and said, "Who told you that this king washed his hands and made soup for King Wusun?"

Wei Deng shrank his neck and turned to look at Huo Guang.

Liu Tan turned his head and looked over, Huo Guang quickly said: "I didn't say that at the beginning, I just said that His Highness made new military rations for King Wusun."

"Ha." Liu Tan said with a half-hearted smile, "Did I personally see the changes in the spread of rumors?"

Wei Deng remained silent. Liu Tan patted the spinning wheel and said, "Okay, I'm just curious to see if the spinning wheel can be improved. If it can be improved, there will be one more economic pillar for the Northern Kingdom."

How much did Huo Guang know the inside story: "Wool?"

Liu Tan glanced at Miao Rui, and Miao Rui immediately asked the little eunuch to take out the finished woolen sweater.

In Liu Tan's opinion, this woolen sweater is really ugly. The color is the original color of wool, and the shape is naturally absent.

But this thing was very strange to Huo Guang and the others. Huo Guang reached out and touched the texture of the woolen sweater, and felt a special texture, softer than cotton, warmer than silk, and fluffy, which reminded Huo Guang of the woolen sweater at home. Beaver slave.

Huo Guang looked at Liu Tan and asked, "Your Highness, is this made of wool?"

Liu Tan nodded, and Wei Buyi beside him was a little surprised: "This is wool? How... how did you do it?"

Liu Tan said: "Don't worry about how you did it, you don't understand it, you just know that this thing needs a spinning wheel."

Huo Guang suddenly said: "No wonder Your Highness asked people to buy a large amount of wool before, presumably it was for this purpose. Your Highness wants to make more and send it to King Wusun?"

Liu Tan said: "I originally thought so, but now it seems that it is not so easy. It's okay, okay, have you appreciated enough? What should you do if you appreciate enough? I think you are too idle. Do you want me to find something for you to do?"

Everyone looked at each other and dispersed immediately.

Liu Tan looked at the backs of this group of people dumbfounded, and really didn't understand why even Huo Guang joined in the fun.

After everyone had left, Liu Tan looked at the spinning wheel carefully. He asked Miao Rui to find a palace servant to start spinning in front of him. What was spun was ordinary linen. Anyway, he didn't want to see the results, but just wanted to See where the spinning wheel needs to be improved.

When the palace servants began to weave nervously, before the results were produced, he suddenly slapped his hands: "I see."

The palace man was frightened by him, and almost knocked down the spinning wheel with a trembling hand.

Liu Tan waved to the palace man and said, "Okay, you are not needed here, go down."

The palace man bit his lips after hearing this, and retreated a little disappointed.

Miao Rui originally chose the most outstanding palace maid to come here, but unexpectedly, Liu Tan's eyes were on the spinning wheel from the beginning to the end. He didn't even give the other party a corner of his eye.

Miao Rui also sighed, and asked the palace servants to go down to receive the reward a little worriedly.

Liu Tan waved to Bi Gao and said, "Go to those papers and a charcoal pencil."

Bi Gao immediately trotted over to get what he wanted, and Liu Tan drew the appearance of the spinning wheel with a charcoal pencil, and drew some key parts by the way—actually, the spinning wheel was nothing technical content.

The hand spinning wheel is just composed of four parts: a wooden frame, a spindle, a rope wheel and a handle, and there is a multi-spindle hand spinning wheel in which the spindle is mounted on the rope wheel.

Compared with the things that Liu Tan tossed out, the hand spinning wheel is too simple.

He took the drawing and asked people to remove the spinning wheel. After returning to the study, he thought about it seriously.

In his impression, the next evolutionary product of the hand spinning wheel should be the pedal spinning wheel.

Liu Tan wrote the pedal spinning wheel on paper, but he didn't worry about how to make it into a pedal.

Because even if it is replaced by a pedal spinning wheel, it is still used by a single person, and it may be able to speed up a little, but the speed of the speed is basically negligible in the face of the huge market.

So Liu Tan decided to skip the pedal spinning wheel for the time being, and then move on to the next one, which is the water-turning spinning wheel!

As the name suggests, the water spinning wheel uses water as the driving force. The principle of the working part is actually the same as that of manpower, but the work efficiency of water power is much higher than that of manpower. In addition, the state-owned Yellow River in the north is also used in places where the Yellow River does not flow. Open canals to divert water.

Then the water has more functions than irrigation.

Liu Tan directly asked someone to call Gong Shucan over.

Gong Shucan came very fast, Liu Tan saw him and asked with a smile: "How is it? How are you resting recently?"

Gong Shucan said with a wry smile: "Your Highness, please don't make fun of me. I'm just a hard worker. I used to think it was too tiring to think about tricks in my dreams, but when I really got free, I felt a little bored. I wish I could do something these days." Something new."

Liu Tan smiled, he could see the sincerity of what Gong Shucan said, and in fact he was the same.

He felt tired when he was busy, for example, from preparing to pick up the car to playing with Liu Che, but after Liu Che left, he felt that life was too boring after he relaxed.

There was nothing special about the normal political affairs of the northern border country that required his attention, so he began to think about military rations and spinning wheels.

He simply said: "Since this is the case, you should have had enough rest, and there is something for you to do, come and have a look."

Gong Shucan immediately ran to Liu Tan in small steps, and Liu Tan clicked on the blueprint on the desk and asked, "Do you know him?"

Gong Shucan looked at it carefully and asked with some uncertainty: "This...is a spinning wheel?"

Liu Tan nodded and said, "That's right, this is the existing spinning wheel. I need to use the spinning wheel for what I'm going to do next, but the output of this spinning wheel is too low, so I want to change it."

Gong Shucan immediately asked, "How does Your Highness want to change?"

He won't be as big-minded as Huo Guang and the others. He only sees something to do, and his whole body is immediately motivated.

Liu Tan said, "Is it possible to change it to hydraulic drive?"

Gong Shucan was stunned for a moment. He originally thought it was just a small change, but he didn't expect that even the driving force was changed.

He thought for a while and said: "I have experience in making waterwheels before, so it should be possible to modify it, but after the modification, it may be much bigger than this spinning wheel."

Liu Tan laughed loudly and said, "I want him to be big. Originally, the hydraulic drive was used to weave more cloth. You can do whatever you want. As long as you can do it, I will credit you for it."

Gong Shucan rubbed his fists and said, "I'm going now."

To be honest, when Huo Guang and the others saw the spinning wheel, their first thought was that it was something for women, but in the eyes of Gong Shucan, it was something that ordinary people needed.

Once these things are popularized, the people who made them will be famous forever!

Thinking of this, Gong Shucan became more motivated, and Liu Tan felt a lot more relaxed when he handed things over to him.

After all, he doesn't need to study it by himself, which saves him a lot of trouble.

Of course, that’s what he said, but in order to prevent Gongshucan from taking detours and causing the research and development period of the water-turned spinning wheel to be too long, he still wrote a few reminders. It consists of four parts, the wheel and the transmission, so he also wrote these four parts to Gongshuchan.

As for how Gong Shucan came out, that was his own business.

During this process, Liu Tan continued to work with wool.

He asked people to divide the wool into fine wool and coarse wool more finely. The fine wool is the finest wool, which is fine and soft enough to be used as a tribute.

The rough hair is also divided into three grades, the upper grade coarse hair is exclusively for officials, the medium coarse hair is for wealthy households, and the lower grade is for well-to-do families.

As for the civilians below, it wasn't that Liu Tan was cruel, but that he really couldn't hold down the price. It was impossible for those poor people to have the money to buy wool.

He now only hopes that the appearance of wool will bring down the price of cotton cloth.

This is not impossible. The price of cotton cloth depends on the number of buyers. Wool appears as warmer clothing. At least the royal family and nobles will further reduce their demand for cotton cloth in winter. They wear wool inside, and the outside is either a fur coat or satin. With fewer people, the price of cotton cloth will naturally come down.

Moreover, Liu Tan intends to sell low-grade wool products at a low price like glass, basically just to collect the cost. As for the place where the money is made, it is the high-grade and medium-grade wool, especially the high-grade wool, the price will be much higher.

As for the fine hair... it will only be used as a tribute for the royal family. Well, the current scope of this royal family is probably the empress and prince and Princess Dangli. If the emperor is happy, he may reward his concubines. Others depend on the emperor What do you think.

While Liu Tan was grading wool, Gong Shucan spent half a month turning the water into a large spinning wheel to produce an initial finished product.

Liu Tan once thought that the water-turning spinning wheel must be a large-scale equipment, but he never thought that it would be so big!