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

Liu Tan's slap on the thigh startled Gongshu, he looked at Liu Tan cautiously and asked, "Your Highness?"

Liu Tan took a deep breath and said, "It's okay, I just... never expected it."

He tossed so much, and finally he could solve it with a little salt?

Of course, the so-called use of salt is actually quite extravagant in this era. After all, the common people have not yet realized the freedom of salt, but this is already a method.

Liu Tan hurriedly ordered someone to tell the craftsmen to follow this method.

Of course, the low temperature in the so-called low-temperature ion exchange is also relative. This low temperature refers to the temperature zone lower than the glass strain point. Liu Tan estimates that it will be more than 400 degrees, but their thermometers are not yet accurate to this number. , so he simply asked those people to try. Anyway, he found a way, and it is much easier to experiment with the temperature.

After Liu Tan gave the order, he turned to look at Gongshu and was very touched and said, "This recipe of yours really helped a lot."

Otherwise, according to his imagination, he wouldn't even think of using salt if he was killed!

Facts have proved that it is useless to have knowledge in the mind, and it cannot be used flexibly. What is the difference between having no knowledge?

Gongshu was also quite flattered, and quickly said: "It would be nice if I could help His Highness."

Liu Tan said: "Your family's situation is quite special. I am going to resume the official position of Winter Official, and I have asked the Prime Minister to prepare for it. It just so happens that it will take some time for your father to come, so wait until he arrives before appointing an official."

Gongshu also widened his eyes: "Dong... Dongguan?"

Liu Tan was afraid that he might misunderstand, so he explained briefly and said, "It's not the same as the Dongguan of the Zhou Dynasty."

Gongshu also heaved a sigh of relief in an instant, and quickly said: "If Your Highness asks my father to be the winter official, my father...wouldn't dare."

In the Zhou Dynasty, the duties of Dongguan were still very important. Although the Gongshu family was looking forward to being an official, so that they could feel proud in front of the Mo family, but they couldn't do the things that Dongguan did. If his father was really asked, his father would not dare.

Moreover, the official position set up by Liu Tan is also in line with their wishes. They still remember the foundation of the Gongshu family for so many years. Even the rest of the clan must not be convinced.

The patriarch of the Gongshu family is not the successor of father and son, but is chosen based on his ability, which is even more cruel and ruthless.

Now he can be an official and continue to hone himself, and Gongshu can also see that there seems to be another system of organ skills in the King of the Northern Realm, which is what Gongshuo values ​​more.

However, even if the King of the Northern Territory is generous, if he wants something from someone else, he has to exchange it for something equivalent.

What they can do is to meet the requirements of the King of the Northern Territory as much as possible, and then ask for some advice in the process. It doesn't need much, just to improve the mechanism of the Gongshu family, so that his father's position can be more secure.

And Gongshu was originally a leader of their generation, and after he arrived in the northern border country, he asked for an official for the family, so it is very likely that he will be the next patriarch.

The most important thing is that he is very familiar with the King of the North!

The more Gongshu thought about it, the happier he was. He suddenly heard Liu Tan say something: "Dongguan's subordinates may have people from the Mo family. I hope to see healthy competition instead of unscrupulous suppression, understand?"

Gongshu was also taken aback for a moment, and turned to look at Liu Tan. He was not happy at that moment. In his opinion, since his father became the winter official, it would be best for the subordinate officials to let people from their family come.

It's just that after meeting Liu Tan's eyes that hinted at warning, Gong Shuyi's slightly feverish brain cooled down a lot.

It was only at this time that he realized that Dong Guan was only appointed to his father, and did not really belong to their family.

The other officials would also be selected by the court of the Northern Border Kingdom. It was only because he improved the hand crossbow and step crossbow before, and contributed to the method of firing colored glaze that his father stood out.

Gongshu also cautiously asked: "What if the Mo family refuses?"

Liu Tan glanced at him, knew what he was thinking, and said with a sneer, "It's up to them whether love comes or not, but the Gongshu family and the Mohist family are not the only ones in this world who know how to use tricks, and what I want is not only Mechanism, what I want is to know things!"

Investigate knowledge.

Gongshu also read these four words once, and felt that he understood, but he didn't seem to understand. He looked at Liu Tan in a daze and asked, "Then what does Your Highness want us to do?"

Liu Tan waved his hand: "You can't do the rest. When your father comes, I will tell him personally."

When Gongshuyi was about to leave, his thoughts were similar to Huo Guang's before, and he also felt as if he had been tricked by the king of the north.

The King of the Northern Realm knew very well that their family was looking for an official position in order to increase the influence of the family and at the same time to find a way out for the family. The King of the Northern Realm took a fancy to this, so he added an extra department dedicated to them.

What was waiting was for the leader of the Gongshu family to come with the focus of the whole family.

Gongshu also thought about it, and suddenly laughed at himself, so what if he could guess it?Even if they knew it was a trap, they would step into it without hesitation.

Being able to set up traps for people with the status of the King of the North proves from the side that they have this strength, and it also shows that the greater the danger, the greater the reward.

What's more, the King of the Northern Realm is quite kind to his own people, so he won't really cheat them.

Liu Tan didn't know what Gongshuyi was thinking, he was happily waiting for the tempered glass to be born.

Hey, it’s better to call it tempered glass than salted glass, but when he thought about it, he himself was misled by this name, and he would be misled if he changed it to someone else, so it’s better not to change the name.

After all, the formula of glass... It is actually not difficult to know.

The whole production process is similar to firing colored glaze, and it is easy here because of the honeycomb coal.

And if he has honeycomb coal, others can have it, at least they can buy it from him. Does he still prohibit the sale of honeycomb coal just because he prevents others from burning glass?

Impossible, in fact, Liu Tanbi hoped that the honeycomb coal would sell well, so that he would pay more taxes, and Huo Guang would be more or less relaxed.

The only point of glass now is in the removal of iron impurities.

Liu Tan sat in the study and thought about it. In fact, he didn't intend to monopolize this recipe.

Because he made the glass from the beginning to play a new trick for Liu Che, but because of the previous incident on the kang, he paid more attention to the current situation of the people.

Nowadays, the windows of ordinary people are basically reed curtains in summer, and the windows are basically sealed with wooden boards in winter.

Yes, in order to keep warm, everyone will directly seal the windows. During the day when people are not at home, they may open them for ventilation, but most of the time they are sealed.

Because there is no paper these days, there is no window paper that can transmit light. For example, nobles use thinly ground mica sheets or shell sheets in winter, while in summer, wealthy households use hemp, while palaces use Use screens.

He also found it inconvenient before, but it was not that inconvenient. Now that he knows the lives of ordinary people, thinking about winter, as long as he is in the house, he can only endure the darkness. The latter is shot in through the gaps. He found it unbearable to live in light.

So he wants to promote glass, but if he wants to improve the living standards of the people, he must also take into account the mood of high-ranking officials and nobles.

They won't be happy that what they use is the same as what ordinary people use.

Especially Liu Che, if Liu Che found out... Liu Tan thought about it, he would probably be brought into Chang'an by Liu Che to educate him about love.

Thinking about it, he was going to hold the Lantern Festival in Shuofang City but forgot that Chang'an Liu Che was not happy. This will only make him more unhappy.

Therefore, the solution to all problems lies in tempered glass.

Well, ordinary people’s glass can also have a little less process of removing iron impurities, in order to separate it into three, six or nine grades. The lowest grade is naturally the kind of glass that is as green as a beer bottle, and the price of this kind of glass is also the lowest. After all, the transparency is not good.

The second step is to remove iron impurities, then two, three, and finally tempered glass with the best light transmittance.

The advantage of tempered glass is that it can be made into very large pieces. In order to ensure safety and avoid easy breakage during construction, ordinary glass will try to control the shape to a relatively small one. Therefore, if ordinary people use it, the window frame can only be It is made into a grid and a grid, and then the glass is embedded in it.

In this way, the princes and nobles were separated from the class of ordinary wealthy households and ordinary people.

The more Liu Tan thought about it, the more he felt that this method was good, so he simply pulled the map and just wanted to choose a place in the industrial area as a glass kiln, and the kiln in the palace was only used as an experimental device.

Generally, when there is no experiment, the kiln is basically in a cold state.

But just as he was about to write, he thought for a while, in order not to let the newly built industrial zone go to waste, he put down the pen carefully, turned around and asked Miao Rui to give the map to Zhu Shanzhang and said, "Help me from the workshop area." Pick a piece."

Zhu Shanyan was stunned for a moment, looked at Liu Tan blankly and asked, "What?"

Liu Tan coughed lightly: "Don't worry about it, just order whatever looks pleasing to your eye."

Zhu Shanli hesitated for a moment, circled a piece without asking further questions.

Liu Tan glanced at it and found that the area surrounded by Zhu Shan was similar to what he had hoped before, so he couldn't help but nodded in satisfaction.

He remembered his previous thoughts, and just to be on the safe side, he decided to ask Huo Guang.

Just when he was thinking about this, someone happened to come to report: "His Royal Highness, the country is asking to see you."

Liu Tan asked someone to bring him in and said with a smile, "I have something to ask you."

Huo Guang's eyelids twitched, Liu Tan looking for him...it must be nothing good, so he said before Liu Tan opened his mouth: "If your Highness is not in a hurry, let's put it aside for now. There is one thing to report to His Highness."

Seeing his serious expression, Liu Tan asked, "What's the matter?"

Huo Guang handed him a document, which explained in detail the recent incidents in the refugee camp. Now it has progressed to the point where Jiang Chong has caught someone, but he has not yet figured out who is behind the scenes.

After reading it, Liu Tan raised his eyebrows and said, "All those who spread rumors have been caught? No one slipped through the net?"

Huo Guang shook his head: "Jiang Chong and Wei Buyi checked for a long time, and they didn't stop until they were sure."

Liu Tan nodded and said simply: "Well, let's kill it."

Huo Guang: "Huh?"