I really don't want to be a rebel [infrastructure]

Luo Shixing was stunned for a moment, then turned to look at them: "What's wrong with the red color? Isn't it normal?"

The expression on Cheng Jingwei's face was a little confused: "Isn't it Qingzhu?"

Alezhen also nodded worriedly beside him. What he was worried about was that Luo Shixing would be hit by another failure.

After hearing this, Luo Shixing said, "Do you want blue bricks? You can also make blue bricks, but the cooling method is different."

Cheng Jingwei was a little surprised: "The method of cooling... so this kind of red brick is no problem?"

Luo Shixing nodded: "Yes, the red brick is just one less water-cooling step than the blue brick. Then, the blue brick is stronger and looks better, but the water cooling needs to be opened on the top of the cooling kiln, and at the same time, be careful not to affect the firing process. Yao, it’s a little troublesome, I didn’t do it, if you like it, I’ll go back and study it.”

Cheng Jingwei immediately said: "No, no, no, I just thought there was something wrong with this brick again, this one is very good, and the color is also very nice."

I am used to seeing blue bricks and suddenly seeing red bricks also find it quite interesting. I don’t know what it will look like.

Ale, who was on the side, couldn't help but ask, "Why do you get blue bricks when you water them, and red bricks if you don't water them?"

This Luo Shixing knew it, he said: "Because the soil contains iron, if the air content is enough when firing, the iron on the surface will form iron oxide, and what comes out is a red brick. If there is not enough air when firing, part of the iron oxide will It will be reduced to ferric oxide and ferrous oxide, which is blue-gray."

When Luo Shixing said this, he was obviously more excited. They have fired bricks, and they can build a house soon!

Thinking that their house may not be finished in a few months, and if they are lucky, they will be able to move into their new home before the New Year, and they feel extremely happy in an instant!

It was precisely because of this excitement that he forgot to cover up Alezhen's question when he heard it, and directly gave the correct answer to Tulu.

Alezhen... Alezhen's education level is not as good as Cheng Jingwei's. Cheng Jingwei can't understand these things. Alezhen already thinks that what Luo Shixing said is a scripture.

Cheng Jingwei on the side looked at A Lezhen's blank expression and sneered, he had already learned not to ask, as long as the little lynx was sure that there was no problem, he didn't want to know why it was all right.

See, bring shame on yourself.

However, one of his advantages is that he is diligent in learning and asking questions, otherwise he would not be the best in Sinology among all the tribes in Lingnan.

He bent down to Luo Shixing's side and asked, "What are you talking about, iron and four?"

When Luo Shixing heard his question, his mind finally turned around. He turned his head to look at Alezhen, blinked and asked, "You actually understand."

What he just said in a fit of excitement was elegant words. Of course, those nouns do not exist in the language of the Ouluo tribe, so he couldn't say it even if he wanted to.

Ale was really a little proud: "My eloquence is much better than before, so, what do those mean?"

Luo Shixing pondered for a while and said, "Do you know what chemistry is?"

Al was really at a loss: "What?"

Luo Shixing explained: "The science of change is for chemistry. This thing is a bit complicated. People who don't have a background in chemistry will definitely not understand it. I explained it to you and you can't understand it. If you are interested, I can explain it to you later. Now I'm afraid I don't have that time."

Was it a subject he hadn't been exposed to?

He knew that the Imperial College of the Tang Dynasty taught many subjects, but he had never heard of chemistry.

Alezhen turned his head to look at Cheng Jingwei and asked: "So that's the case, has the tiger also learned this?"

Luo Shixing: ...

Good guy, forgot that there was a loophole around him, he also turned his head to look over.

Cheng Jingwei said calmly: "Of course I know, iron oxide, ferric oxide and ferrous oxide, it is a matter of whether there is enough air during firing."

Luo Shixing was startled when he heard this, and thought for a moment that Cheng Jingwei really knew chemistry.

However, after thinking about it, this conjecture was denied. If Cheng Jingwei really understood it, he would not even know about the hydraulic bellows, and what Cheng Jingwei said was like re-telling his words in a different word order.

So... Cheng Jingwei probably remembered what he said just now.

Student Tiger is really smart, he just said such a long list, and the other party actually wrote it down!

Luo Shixing gave Cheng Jingwei a thumbs-up in his heart, and then went to see Alezhen, wondering if the other party had noticed this.

However, Ale was really intimidated by Cheng Jingwei, thinking that all the scholars in the Central Plains were really learning this theory of change.

He couldn't help but ponder why this had never been mentioned in the books he had collected before?Could this be some secret knowledge?

After confirming that there was no problem with the bricks and the hydraulic bellows, Alezhen said to Luo Shixing, "I'll send you a few more people, and you can take them to help me make two hydraulic bellows."

Cheng Jingwei was alert for a moment, and before Luo Shixing agreed, he said, "What is Da Ling going to do? If Da Ling doesn't mind, why don't you send a few people over to study? It’s not good if he doesn’t have time, it’s better to hold the technology in his own hands.”

After hearing this, Luo Shixing glanced at Cheng Jingwei in confusion. Didn't this person prevent slaves from stealing lessons before?Why have you changed your mind now?

However, Cheng Jingwei felt that the transaction of Yanjing must be done with clear accounts. They made the hydraulic bellows and handed over the production method to Alzhen, and the transaction was considered complete.

If Ale came to ask them every time he really needed it, would they still help Ale make a hydraulic bellows for his whole life?

What's more, who knows if the little lynx will come up with new things in the future, will Ale really ask them to do it?

With the temper of the little lynx, he must be embarrassed to refuse.

Cheng Jingwei's intentions were upright and he didn't hide anything. Alzhen raised his eyebrows at him casually and smiled without answering. He turned to Luo Shixing and asked, "What did the lynx cat say?"

Luo Shixing was silent for a moment, looked at Alezhen sincerely and said: "Brother, I said it's useless, I can only draw pictures, and the one who really knows how to make hydraulic bellows is the tiger. These are all the parts he made by watching people. Assembled, don’t you know how good I am at making things myself?”

Alzhen had watched how he built the model house crookedly at the beginning.

Ale really ignored this matter, mainly because Luo Shixing was the one who came up with these things, and it was Luo Shixing who drew the blueprints, so Ale really ignored the difficulty of making them.

In other words, he subconsciously thought that Luo Shixing could think of useful tools and know how to make them.

However, he could only guess that Luo Shixing was speaking to Cheng Jingwei, even if the other party's reasons were particularly convincing.

He had no choice but to turn his head to look at Cheng Jingwei: "Since you want to teach, that's fine. I'll find a few people to learn when I get back."

Cheng Jing smiled and said, "Okay, no matter what you have to keep in your own hands, it's the safest, what does Daling think?"

Ah Le really thought about it, and it was true. If the hydraulic bellows were completely in the hands of Luo Shixing and Cheng Jingwei, he might have to worry about whether there would be an accident for these two people.

Or what if these two people leave Beidai County?

Although Cheng Jingwei clearly drew the boundaries between each other, he didn't intend to cheat him, so Ale really had a good impression of him.

Alzhen turned around and left after finishing speaking. It seemed that he was anxiously looking for someone to learn how to make hydraulic bellows, but in fact he planned to ask Wei Siwen what the knowledge of change was.

Luo Shixing didn't know that Ale was still thinking about that thing. After he left, he touched Cheng Jingwei with his arm and said, "I thought you wouldn't want to hand over the technology to the locals."

Cheng Jing smiled: "This technology is not very precious, there is no need, once you teach them, you will be worth the money."

The real secret recipe must be in your own hands, but the hydraulic bellows... Let's put it this way, many places with abundant water in the Central Plains use this thing, and it is not a secret at all.

If Ale is really determined to find someone to go to the Central Plains as an apprentice, he might be able to bring back the technology after staying for more than ten years.

It's useless to hide this thing all the time, and it's best to "check out" quickly.

Luo Shixing didn't feel at ease when he heard it, and he didn't think it was useful.

At this time, those red bricks had been taken out and placed on the ground, Luo Shixing directly put aside the matter of the hydraulic bellows, and then ran over to admire their red bricks.

Strictly speaking, the quality of this batch of red bricks cannot be compared with that of later generations. First of all, the soil is not weathered enough. Although it has been weathered, but because the mountains are relatively humid and the soil has a high moisture content, there is no way.

Then the air bubbles are not particularly clean when stirring and muddy, resulting in occasional sporadic bubble holes.

However, this has made him very satisfied!

Picking up a brick at random even feels good in the hand.

Cheng Jingwei was standing next to him and watched his copying and weighing of bricks seem to be very skillful, and he couldn't help but think of the scene where Wei Siwen told him that the little lynx beat people with stones.

After putting down the bricks, Luo Shixing asked, "Then we can start building the house."

After hearing this, Cheng Jingwei quickly asked: "Wait a minute, this is not a solid brick, isn't this a hollow brick?"

He always thought that Luo Shixing asked them to make solid bricks just to test the success of the brick kiln. Why did it seem that this brick was going to be used directly?

Luo Shixing said: "No need, hollow bricks are too troublesome to make, solid bricks are good, and hollow bricks will test the heat and cold in the brick kiln and the raw materials. These two things are very troublesome now. If we are not careful, it will take us a while to find the right red clay. It will take some time to test the right temperature, I'm afraid we won't be able to live in a new house next year!"

Cheng Jingwei asked a little strangely: "Then why are the mud bricks from before?"

Luo Shixing took it for granted: "The craftsmanship of mud bricks is different. If you have to say it, mud bricks are like firing pottery. You have experience with that, and we don't need it to be strong, but this one is different."

The ice cellar is underground, and the function of mud bricks is actually to block the soil next to it, without any load-bearing function, so as long as it can be fired successfully and neatly, it is enough.

But the house is not good, especially more than half of their house is in mid-air, and whether the bricks are strong or not is more important.

So Luo Shixing decided to use solid bricks after much deliberation.

Cheng Jingwei thought for a while, and it seemed to be the same reason, so he asked: "Actually, there is still one problem that needs to be solved if we want to start construction."

Luo Shixing looked up at Cheng Jingwei: "What's the problem?"

Cheng Jingwei asked with a serious face: "What material do you think we should use for the pillars under our house? Rammed earth or something else?"

Only then did Luo Shixing realize belatedly, yes, the material for the column has not been resolved yet!

He had a headache for a moment, why did he feel that building a house created a sense of sight of learning from the West?When will this nine-nine-eight-one difficulty end?