The so-called large spinning wheel, should have been the Tang and Song dynasties, the increase of social productivity, and at the same time the increase in demand for textiles, a huge instrument appeared, at this time the hand-cranked spinning wheel and the pedal spinning wheel has been unable to meet the supply demand, at this time, the large spinning wheel was born.

This thing, using water power, rotates day and night, and can spin more than 100 catties!

In the era when there was no cotton, the yarn used by ancient civilizations around the world was spun from various hemps, and hemp fibers, such as kudzu and ramie in China, flax in Egypt, etc., were the earliest textile fibers used by human beings.

About 6,000 years ago, people used hand to tear hemp, sort it out, make it into yarn, knead it into ropes, and knot nets and weave clothes. According to the type of fiber, hemp spinning can be divided into four types: jute spinning, ramie spinning, flax spinning and leaf fiber spinning.

This is common sense, even if you don't understand the back, you who often play games should know the "linen" thing, ah, the rag wrapped in Jesus.

In order to improve the GDP of the people in his own land, Danzhu vigorously encouraged the weaving industry, and dumped hemp products to all parts of the mountains and seas.

As for why it has not been developed for so long, firstly, it is the problem of resources lost in the past war, secondly, the war has led to a sharp decline in the population of the local tribal people, and there is no way to recover.....

But now it's different.

The source of hemp is simpler than animal skin, and the price is far lower than animal skin, not to mention the production cost.

This is the way to generate GDP.

In the manufacturing process of this large spinning wheel, Danzhu also invented the pedal spinning wheel by the way, but the one-man work thing was soon regarded by Danzhu as a small product, which became a derivative product from the original historical inevitable development.

Because there is no water in the venue, and Danzhu assembles a miniature version, Danzhu roughly explained the function of this thing.

“..... This thing can not only drive the mulberry and hemp industry, but also drive the handicraft industry and weaving industry, and a large number of goods can be manufactured, which not only solves the problem of women's employment difficulties, but also improves the happiness of the tribal people and the living standards of local residents!"

"Hear the applause!"

Danzhu accepted the praise of everyone, and the onlookers who ate melons here also applauded, this thing is indeed an important thing to improve productivity, and the data of 100 catties of spinning yarn around the clock also made many carpenters dry.

What is a baby, this is a baby! Science and technology are the primary productive forces, and Dazai Cheng does not deceive me!

Yi Jun looked at the situation around him, the good guy was embattled, and at the same time, his heart was slightly confused.

This... When will such an important thing as the restoration of the guide car after the wind be despised?

Where does this put the face of my emperor's eldest grandson?

What kind of face do I have to take charge of the blacksmith shop!

Yu Pan shouted on the side at this time: "Ah Jun take out the ceramics, take out the glass, Ah Hong has never seen it!"

Danzhu really hasn't seen it, but I've heard Emperor E say it, and Emperor E heard about it from Emperor Fangxun, Emperor Fangxun heard about it from Chonghua, and Chonghua heard about it from Shijing.....

"The legendary glazed pottery?!"

Dan Zhu's expression was grim, and Yijun snorted coldly: "Ceramics, glass, and gunpowder are not in the workmanship, if I take it out, I will deceive him professionally, and I will inevitably be a villain, not a gentleman!"

"If you want to win, you have to win with dignity! Otherwise, this guy won't be able to scold me! Come on, Xi Zhong, go and push my thing out.... Good thing I was prepared!"

Yijun had told Yu Zai before that if the guide car couldn't overwhelm Ah Hong, he would have other good things!

Since ancient times, showing the enemy weakness is the highest tactic, and good things will not be taken out easily, and it will not be called a good thing if you see it.

Danzhu was slightly shocked in his heart, secretly saying that in the past year or so, he has spent a lot of energy perfecting the big spinning wheel and adding a new instrument, but he didn't expect that this dog named Yijun seems to have only one-third of his skills?

Xi Zhong quickly pushed the second good thing out.

"What is this?"

A model, and Yijun is said to be too big to assemble, and Danzhu's big spinning wheel is the same, it is also a kind of goods, and the real thing is in the water mountain behind the blacksmith shop.

"It's called molten iron drain!"

Yijun introduced to everyone: "This thing is a device that uses hydraulic blows to cast iron, everyone knows that the bellows in the blacksmith shop are tattered, and I haven't blown it with my mouth. ”

"For this thing, choose the bank of the turbulent river, erect a wooden frame, erect a rotating shaft on the wooden frame, install a large horizontal wheel at the upper and lower ends, and install a leaf plate around the axle of the launching wheel to withstand the impact of the water flow, and you can convert the hydraulic power into a power ......"

"This makes the wooden pole connected to it move continuously, and the connecting rod drives the straight wood to reciprocate through the climbing ear and the horizontal axis, so that the row fan opens and closes, and the air is blown ....."

"This thing not only frees up manpower and allows those broken bellows to play a better role, but also improves the efficiency of iron smelting and copper smelting, the faster the water flow, the faster the rotation, the stronger the wind, the stronger the firepower, plus the blast furnace iron kiln, the efficiency is better...."

"So I recommend using it with a rain master...."

"Hear the applause!"

Akamatsuko (alert): "Huh?"

Yijun took out this thing, which made Dan Zhu's face suddenly condense, good guy, this thing has a lot of technical content, Dan Zhu pondered, it seems that this guy called Yijun has completely eaten the gear theory he left behind!

"Why, don't you take out the last one?"

Danzhu spoke, and Yijun smiled: "Ah Hong, if you admit defeat now, I will reluctantly accept you as a junior brother, this last one, you can't compare to me." ”

Danzhu smiled, and Yijun also narrowed his eyes.

Both sides are going to make big moves!

Danju began to assemble a model again, and on the other side, Yoshijun ran to the blacksmith shop and pulled a lot of things out.

It lasted for about half a day, Yijun assembled the eight continuous mills, and used the big gear to the extreme, a cow can pull eight grinding discs, there is a big gear in the middle, and the eight grinding discs are round next to the big gear in the middle, this thing originally appeared in the Jin Dynasty, called continuous grinding.

Danzhu here, on the other hand, is a keel waterwheel that was made! It was imitated from the original small waterwheel of the Chifang clan, and after it was improved, in order to expand the mulberry hemp planting industry, the round waterwheel could not adapt to all terrains, so it was desperately made up by Danzhu.

Good guys, the people of the handicraft street are really insiders!

Co-author: Is this the world's first tech fair?

The judges on both sides will soon enter into a heated discussion! The person who gets 270 votes first will become the next blacksmith shop and Hongzhou Dagongzheng!

Danju and Yoshijun have made victory declarations!

Bet on the face of Daddy Emperor Fangxun! This battle will be won!

Yijun listened to it and pondered for a moment.

In the name of the bet, it must be better than Ah Hong.

Pregnant!

Bet on Grandpa's bones!