The development of things was not much different from what Li Yan expected.

The eldest grandson mansion did not have any prejudice against Li Yan, and no bloody plot happened.

The eldest grandson's attitude towards Li Yan was quite kind, and the eldest grandson Meng also had no opinion on being given marriage to Li Yan by the emperor.

Of course, the reason for this is naturally that Li Yan's hard power is enough to get the attention of the eldest grandson's family.

After all, Li Yan is the youngest prince in the history of the Tang Dynasty, and he has two battles to destroy the country.

From the point of view of the title, Li Yan is worthy of the eldest grandson's family to be wooed by marriage, not to mention that Li Yan also owns Xianyunju, Tiangongyuan, and Tiangongfang, which either make money like flowing water, or have extremely far-reaching significance in their own existence.

It can be said that looking at the entire Tang Dynasty, there is no young man whose light can be compared to Li Yan.

Therefore, Li Yan's visit went quite smoothly, and the eldest grandson Wuyi accepted the dowry very happily, and made an appointment with Li Yan to invite someone to finalize the auspicious day for marriage.

After finishing the visit to Changsun Mansion, Li Yan and Cheng Yanjin exchanged a few words and separated.

Cheng Yanjin also had to help Li Yan contact Wang and Cui in advance to make an appointment for the next job, while Li Yan himself went directly to Tiangong Institute to focus on his plan to promote the industrialization of Datang.

"Yes, the machine was built in just one day, and each person was awarded five yuan."

As soon as Li Yan came to Tiangong Academy, he saw the brand-new machine standing in the center of the courtyard.

This is exactly the semi-automatic paper machine that Li Yan ordered to make yesterday.

In just one day, carpenters, blacksmiths, and papermakers cooperated with those craftsmen who had studied drawing with Li Yan to build a semi-automatic paper machine.

Transmission structure, stirring paddle, puree pool, shaping module......

Li Yan originally thought that the various parts of this machine would not be fully produced until at least tonight, and then all the parts would not be assembled until tomorrow.

In this way, Li Yan underestimated this group of craftsmen.

"Grandpa Guo, we all stayed up all night yesterday."

"Grandpa Guo, you ordered, of course we have to be careful!"

"That's it, that's it! If it weren't for the grace of the Heavenly Crafts Academy, we would still be living in a mess! ”

A group of craftsmen obviously haven't gotten out of the excitement of becoming "official craftsmen", even if they have stayed up all night, they are still full of energy.

"Pay attention to rest at night, the body is the most important."

Li Yan heard everyone stay up all night, and he also subconsciously admonished.

This group of craftsmen does not have their own physical fitness, let alone "Minecraft", a golden finger that can replace sleep.

If they stay up all night, something will definitely go wrong with their health!

In addition, the age of this group of craftsmen is not young, they are all about forty years old.

It must be known that the average life expectancy of the Tang people is fifty-nine years old, not even sixty years old!

According to their age, it is appropriate that they have entered the second half of their lives.

"We know, thank you for your concern."

A group of craftsmen replied in unison, they were very moved by Li Yan's words of concern, after all, how could ordinary nobles care about the lives of craftsmen, and it would be good if they didn't try their best to squeeze and urge workers.

Li Yan didn't know that his unintentional words just now had invisibly attracted the loyalty of the craftsmen, he caressed the semi-automatic paper machine, looked at the still empty pulp pool, and continued to ask:

"Has the machine been commissioned? What's the health? ”

Li Yan is still quite realistic, and most of his attention is still on the machine.

"Grandpa Qiguo, Tiangong Institute does not have raw materials such as plant ash, bark, and hemp for the time being, and it will only be delivered tomorrow."

A papermaker stepped forward to answer Li Yan's question.

Although the machine has been built now, papermaking still needs raw materials after all.

The price of papermaking raw materials is not expensive, and you can buy a few cars for a few dollars without much money.

The main reason for the high price of paper today is actually the complexity of the papermaking process.

According to the existing papermaking technology, the papermaking process is complicated, takes a lot of time, and is extremely prone to uneven quality levels.

It is likely that for every 100 pieces of paper produced, only one is of the highest quality, and the rest of the paper is of varying or even slightly damaged condition.

This is the main situation of today's paper prices.

"It's okay, let me see the machine run first."

Li Yan continued to speak, there is no need to worry about this kind of thing, if you want to improve the efficiency of papermaking and carry out standardized flow papermaking, you have to rely on the stable operation of the machine.

Therefore, Li Yan only needs to see the operation of the machine to basically know the final result.

"Yes."

After receiving Li Yan's order, two people immediately went to work.

The reason why this machine is called a semi-automatic paper machine is actually limited by the research and development speed of power machinery, and manpower must be used as the driving force for mechanical operation.

If the development of the steam engine is completed, then the machine can naturally be upgraded to fully automatic.

One of the two people who went to work shook the handle, and the other waited next to him, ready to relay at any time.

With the shaking of the handle, the whole machine starts to run.

Driven by the transmission gear, the slurry at the bottom of the pulp pool rotates rapidly, if there is puree in the pulp pool at this moment, then the puree will inevitably continue to flow and maintain the uniform characteristics of the puree at all times.

While the gears are running, the differential gears are also playing a role, driving the other structures of the machine to rotate at a constant speed.

Li Yan observed before and after, and according to the current situation, there is no big problem with the operation of the machine.

Now you only need to wait for the raw materials to be in place, make a pool of raw pulp, and try to make a batch of paper to know the final result.

"Not bad."

Li Yan did not hesitate to praise himself.

You know, this is a craftsman of the Tang Dynasty!

A group of craftsmen in the Tang Dynasty took the drawings of later generations to make the corresponding machine in one day, and reached almost 100% completion, how could Li Yan find faults, naturally he would only give praise.

"It's all taught by Grandpa Guo!"

A group of people were quite discerning and knew that Li Yan was the only boss of the Tiangong Academy, so they naturally patted their ass.

You must know that in this group of people, except for those craftsmen who followed Li Yan to learn cartography, no one else has learned anything from Li Yan.

The reason why they were able to perfectly complete the tasks assigned by Li Yan was actually due to the accumulation of their years of experience as craftsmen, and their relationship with Li Yan was not very large.

"Try to make paper tomorrow, if everything goes well, I will report to Your Majesty on your behalf, and Your Majesty will definitely reward you."

Li Yan once again inspired everyone, and the effect was quite obvious.

For the people of this age, there is nothing more glorifying than the reward of the emperor.

The so-called learning of literature and martial arts, the goods and the emperor's family are such a truth.

The emperor is always the best object for Li Yan to pull the banner.