Abu told Yang Wencai that because the fiber of cotton is relatively long, the toughness and tension of the paper produced will be much better.

In addition, due to the climate, the quality of the cotton produced is even better.

He could experiment with mixing various bark, hemp and wood fibers into cotton fibers.

At the same time, you can also try to use multi-layer paper superposition, pressing silk threads or patterns into it, as anti-counterfeiting signs or water lines. Anyway, you can do whatever you like, and don't be limited by your brain.

The early test does not require a large dose of input, so it does not consume too much raw materials.

Old Yang Tou memorized all these words that Abu said, and he can now be called obedient to Abu.

One is to thank him for saving the lives of so many villagers, and the other is to admire him for knowing so much knowledge at a young age, he is simply a living Zhuge !

Lao Yang Tou is full of energy, as long as he follows Mr. Abu's guidance, he can always get all kinds of surprises.

To paraphrase a phrase that he did not know about the Hereafter, it would probably be "Believe in Abu and have eternal life." Of course, this is just a joke!

As for the idea of making banknotes, Abu really didn't just talk about it on a whim, he had always had such a plan.

Now, no matter within the territory of the Tang Dynasty, the transactions involved in daily life, or the trade between countries, the currency used in transactions is extremely chaotic.

There are gold coins, copper coins, and a small number of silver coins appear in various parts of the Western Regions.

Especially for caravans between countries, it is even more common for large trades to directly use silk as currency, because other countries cannot produce silk, and it is rare and expensive, which is also a matter of no way.

In some places, bartering is not uncommon.

This kind of trade is very inconvenient to exchange goods and currency, and obviously hinders the flow of trade and economic prosperity.

Under the existing conditions, if you want to produce a product, there are too many raw materials lacking and too many limitations, and you must rely on extensive trade to make up for the shortcomings.

As far as Abu knows, the so-called records of the use of paper money to "jiaozi" to trade goods only began to appear in the Northern Song Dynasty.

In this case, let's start with him in the manufacture and use of paper money.

Through the advantages of science and technology, we are one step ahead and create advanced products.

Relying on products to promote paper money, and after paper money is widely accepted by everyone, it will further stimulate the development of economy and trade, which is a process of mutual benefit and mutual promotion.

If everyone uses the same kind of banknote, it will bring great convenience whether it is carried or traded.

Abu said goodbye to everyone, and when he walked to the door, Abu suddenly remembered something, so he turned his head and discussed with Yang Wencai that these papers should not be circulated first.

At the end of the year, after the final exams, priority will be given to students with excellent grades to stimulate everyone's enthusiasm for learning. Old Yang Tou readily agreed.

Subsequently, Abu rushed to the cave where Li Baotian made glass.

He was very curious about how far this former porcelain craftsman could develop the manufacture of glassware, but he had already seen the glass used by Liu Yuanlu.

It should be said that both the craftsmanship and the shape, as well as the transparency of the glass, are already quite amazing and excellent.

When he arrived at the place where he made the glass bowl last time, he found that both the number of staff and the size of the work area were much larger than before.

When everyone saw Abu's visit, they greeted him warmly, and their faces showed excited and eager expressions, as if they were children who had received good grades and were looking forward to their parents' praise, and the atmosphere suddenly rose.

Li Baotian walked over and said with a little pride that he had roughly mastered the method of blowing glass, and then said to the others: "Young men, stop all the work in your hands for a while, and let's show Mr. our latest progress." ”

The others applauded and put down the tools in their hands one after another, and a young man named Li Zhengqi with bright eyes said: "Brother Li said, Mr. would never have imagined that he would master this unique skill so quickly." ”

Li Baotian glared at him, and didn't do your job yet.

The young man didn't care about Li Baotian's reproach, and while smiling, he picked up an iron tong in his hand.

At this time, another person next to him came over and helped to help.

After the preparation, Li Baotian is about to start his homework.

He first picked up a wooden pipe nearly a foot long, and at the end was an iron pipe about two feet long.

Li Zhengqi used pliers to open the scorching furnace door, and Li Baotian carefully picked out a viscous, bright red glass molten slurry with one end of an iron pipe in the crucible in the furnace, and the other person closed the furnace door again.

Li Baotian put the wooden pipe on an iron frame, and while turning the wooden pipe, he blew hard.

The glass paste at the other end bulged slightly, and then he put the bulging glass paste into an iron mold, still blowing as he turned.

After a while, a glass with a slightly thin middle and a slightly thicker end that resembled a gourd had been formed.

He carried the shaped glass and slowly lowered it into the bucket next to him; The glass swayed in the air, as if it was about to fall.

As soon as it was put into the cold water, the scorching glass suddenly met the water, and suddenly a large puff of white smoke appeared.

When I took it out again, the glass was covered with mottled and irregular, dense cracks.

Li Zhengqi opened the other door, Li Baotian put the glass in, turned it slowly, and said to Abu, this is what Mr. said about annealing.

After this process, the toughness and elasticity of the glass products produced have been greatly enhanced.

Abu nodded beside him, and watched carefully, he had never seen glass blown before.

After re-firing in the furnace for a while, I took out the glass, the crack on which had been repaired as new.

Then someone carefully cut the top of the cup with scissors, and the soft glass looked like the skin of cooked meat.

Li Baotian used an iron tong to hold the cup again, put the glass into the furnace door, let the cup mouth become smooth and round under the action of high temperature, and then put it cold, waiting for it to cool down slowly.

A new, shiny glass was born.

Abu looked at Li Baotian's skillful and smooth operation, as well as the tacit cooperation with the two who worked together, and could only sigh that he had a specialization in the art industry, and handed over the work of glass making to Li Baotian, he knew that he had found the right person.

Then Abu saw a dazzling array of glass objects in the finished showroom in the middle room, glass bowls, glass plates, glasses, glass tubes, and some glass beads scattered in one corner.

Looking at these transparent and glowing glassware, Abu seemed to see a pile of glowing gold coins, and he said to Li Baotian with a smile: "I didn't expect Brother Li's skills to be so superb, this is the foundation for us to make a fortune in the future." ”

Li Baotian waved his hand modestly, but the joy in his eyes still couldn't be concealed: "It's not your idea, Abu, after you said that you can blow glassware, I'm thinking about how to blow it."

Later, I begged the blacksmith to make me an iron pipe.

When I got it back, I found that it was a little short, and I couldn't use it at all. It's still just this kid who is clever, and said that he can add a woodpipe to it to try. Not to mention, the effect is really good.

At first, I was always cautious for fear that it would suddenly explode.

Later, I found out that if it wasn't for the sudden cold, it would actually be quite safe.

Even if it is put in water during annealing, it will only blow up some cracks and will not blow into pieces. ”

"Well, the eldest brother's craftsmanship is already impeccable, you can bring more young people like them, in the future, we will produce a large number of this kind of glass products, and it is obviously not enough to rely on one or two people."

Li Zhengqi answered next to him: "Big brother has already taught us the skills and precautions, and I made some of the cups here." There was pride in his tone.

"Hehe, that's great, on top of these glasses, uncle can try to stick a handle on them, so that when you drink hot water, you won't be burned."

"Well, Abu's idea is good, it shouldn't be too difficult to do."

"Big brother can try to make a glass lotus lamp, the bottom is like a plate, and the lotus petals on the top can be molded out and then glued on. Candles can be lit on top of the plate. ”

Abu gestured while describing the specific details to Li Baotian.

After hearing this, Li Baotian pondered for a while, and said to Abu: "The problem should not be big, as long as Lao Bai can polish the corresponding mold, I can make it, but this needs to be manufactured, the process will be very complicated, and I haven't made a few more cups to make it refreshing."

Isn't it a bit flashy to spend so much effort to make such a lotus lantern? ”

Abhaha smiled: "Don't worry, it will be very useful." As long as we can build it, we will definitely be able to make a big bargain when the time comes. ”

Then Abu said to Li Baotian, you can go to Liu Yuanlu to study it, and try to add some preparations to change the color of the glass.

After the glass of different colors is made, you can also try to make them into glass balls like this, as he said, he picked up a few glass balls from the corner and slowly rotated them in the palm of his hand.

"What's the use, sir, these little glass balls were all played with by me during the experiment."

Li Zhengqi wondered why Abu was interested in these glass balls.

"Haha, Brother Zhengqi, do you have a favorite girl? It's a great weapon to win hearts and minds. ”

As he spoke, Abu raised his hand to his head, and the glass ball reflected a bright light in his hand.

After a pause, Li Zhengqi also reacted, grinning and began to smirk, and his eyes also lit up with excitement.