His Majesty Li Er had heard the report of the Baiqi Division, but he didn't particularly care about it, and today Yan Lide openly proposed in the court that he would use cement to build roads, build embankments, and repair city walls after coming to the Ministry of Industry, plus the cement he blew seemed to have the effect of turning decay into magic, which made His Majesty Li Er curious.

In the end, it was decided to take a private visit to see it in person.

Not long after retiring from the dynasty, His Majesty Li Er summoned Yan Lide, as well as Fang Xuanling and the eldest grandson Wuji, and decided to take a look at the so-called cement for themselves.

Yan Lide was the most active in this, and after coming to the cement roadside, he began to introduce cement non-stop.

His Majesty Li Er tried to walk on the cement road, stomped his feet, and sure enough, he found that this thing was as hard as a stone, and he couldn't feel any bumps in the carriage.

As the king of a country, His Majesty Li Er's vision is much broader than that of ordinary people, and the first thing he thinks of is the transportation of grain and grass for war.

The usual dirt road is potholed, and it is even more difficult to walk an inch after the rain.

His Majesty Li Er looked up at the clouds in the sky, thought a lot, and then spoke,

"Auxiliary, what do you think?"

The eldest grandson Wuji smiled, he had no opinion on this cement, but he was a little uncomfortable thinking that the cement was not in his hand.

"Your Majesty, Weichen thinks that this thing is beneficial to the country and the people, and it is beneficial to the Tang Dynasty, and it can be implemented."

Fang Xuanling also agreed.

His Majesty Li Er smiled happily, because of his identity as a disciple of the Immortal Family, he learned a lot of things about Jiang Wei through the Hundred Cavalry Division, and because His Majesty Li Er ordered not to disturb the disciples of the Immortal Family too much, the Hundred Cavalry Division only knew some one-sided things. And the cement from the hands of the disciples of the Immortal Family is beneficial to the Tang Dynasty and is recognized by the courtiers, of course His Majesty Li Er will not reject it, and he is even very happy.

In this regard, His Majesty Li Er felt that he still knew less about Jiang Wei, and planned to investigate more deeply through the Hundred Horse Division. The word immortality, since the Empress of the Eldest Sun left, has always popped up in his mind.

In Xu Fuzhong, Ruoniang didn't know where to go to play.

At this time, Jiang Wei was writing a book, the title of which was Yue Feichuan.

In the book, he portrays the current state of the Southern Song court, the benefits of open commerce, and the tax revenue ten times that of the Tang Dynasty. However, such a good situation, because of the invasion of the Jin State and the Mongols, led to the outflow of a large amount of indemnities. At this time, a generation of national heroes for the country and the people Yue Fei, he portrayed it very tragically, he used Wen Tianxiang's life since ancient times who did not die, leaving Dan to take the heart of the sweat and green as the beginning, with Yue Fei's Manjianghong as the end.

The whole book is 500,000 words, written in vernacular, Jiang Wei's goal is very simple, just to make a warning for future generations, if there is still the Song Dynasty, maybe because of this book to make some changes.

After he finished writing this book, he decided to print it, after all, if he wants to pass it on, it can only be passed on through the efforts of generation after generation. Issuance is the best choice.

As for what the consequences can bring, he has also seriously considered it. I wonder if it will cause a backlash from the literati? However, Jiang Wei couldn't take care of these, and with the TNT iron warhead, his courage was getting bigger and bigger.

Even thinking about whether to make a movie about him?

However, in the end, Jiang Wei was still cowardly, and in front of the three words of Yue Feichuan, he added the four big characters of Jingzhong to serve the country. After all, there are only two TNT iron warheads, and there are only about two dozen orphans.

Jiang Wei recruited Li Tong,

"How's the cement road going?"

Li Tong bowed, looking at Jiang Wei's eyes with a faint hint of admiration, it was the man in front of him who made his hometown Yunling Village undergo earth-shaking changes.

"Son, everything is going well, and now we are putting the finishing touches on it."

Jiang Wei nodded,

"There is no need to add words, this is too outside, and we are not subordinate relations, the villagers of Yunling Village are like brothers and sisters to me."

"In this way, after you have finished the cement road business, you will recruit a group of craftsmen and set up a printing workshop, and then this printing workshop will be fully responsible for you. I've got a design here, and it's a design of movable type printing, and you go and let these craftsmen make it. ”

After Li Tong left, Jiang Wei thought about whether there was anything missing, and then began to continue the production experiment.

Phenol has already been successfully produced, and the next step is to make another chemical material for film negatives, carbon tetrachloride.

To get carbon tetrachloride, you first have to get pyrolite, which is a strange stone formed in sediments formed by lakes and seas. Jiang Wei hired people to look for it for more than ten days before he found this thing.

When Jiang Wei mixed pyromanganese ore with concentrated hydrochloric acid and heated it, chlorine gas was obtained. Jiang Wei hydrochloride didn't have much effort to get it.

Then there is methane, which is an organic compound with the molecular formula CH4 and a molecular weight of 16.043. Methane is the simplest organic substance and the hydrocarbon with the least carbon content (the largest hydrogen content). Methane is widely distributed in nature and is the main component of natural gas, biogas, pit gas, etc., commonly known as gas.

Jiang Wei chose the easiest method, which is to put organic matter into the biogas digester, control the temperature and humidity, and the methane bacteria multiply rapidly, decomposing the organic matter into methane, carbon dioxide, hydrogen, hydrogen sulfide, carbon monoxide, etc., of which methane accounts for 60%-70%. After low-temperature liquefaction, the methane is raised.

Then the methane and chlorine are mixed, and the hot chlorination reaction occurs at 400-430 °C to obtain crude carbon tetrachloride and by-product hydrochloric acid, and the crude carbon tetrachloride is neutralized, dried, distilled and purified to obtain a finished product.

After a day of hard work, Jiang Wei finally got carbon tetrachloride. The materials for the film negatives were finally ready, and then it was time to start making the film negatives.

Jiang Wei adjusted phenol and carbon tetrachloride into two ratios, which were 1:4 and 4:1 respectively, and he didn't remember the specific ratios very well.

But it doesn't matter much, and it is enough to experiment separately once. Then they were dissolved, flattened with an iron plate, and after volatilization, Jiang Wei finally made the film base, that is, the transparent film.

With the base of the negative, the next step is to make photosensitive materials, which are also materials for photo development, among which Jiang Wei currently has one of the chemical materials used, that is, nitric acid.

It's just that the facilities that don't have experiments at present are too simple, and as soon as the photosensitive materials come out, they are estimated to be scrapped by the light, so this link can only be temporarily postponed. However, it is possible to prepare the production of the development agent and the production of the fixing agent first. When the laboratory equipment is set up, as long as the photosensitive material is made, then it is ready to shoot the movie.

Thinking of this, Jiang Wei felt very much looking forward to it.

A week later, Jingzhong Baoguo was finally printed, because the price of paper was a bit high, he only printed 100 copies of Jingzhong Baoguo, 1,000 copies of the regular edition of two editions, and began to invest in all the bookstores.

This book is like a small stone, thrown into the ocean, rippling with layers of faint ripples.