"What is a hot room?" Cui Qing had never heard of it. He considered himself very talented. After passing the exam for the outstanding scholars, he did not rush to take the exam for the exam. Instead, he traveled around Da Chu and increased his knowledge. In addition to the things in books, he had been involved in all kinds of civilian industries. He had been in the army for a year and did not serve as an official position, but wanted to learn more.

Among the scholars, Cui Qing is an alien. He is the art of iron smelting, which is beneficial to the country and the people, so he really spent a lot of time and thought he was much more skillful than the craftsmen, but he never heard of any hot room.

"Why is there no hot room?" Renault asked in confusion. The hot room can be understood literally, how could he not understand it?

Anyone with a little common sense knows that blowing air and oxygen can help fuel combustion, but after all, it is cold air. A hot room is built on the air duct to make it blown in hot air. This can greatly improve the efficiency of iron smelting. What a simple thing to do.

When Renault finished explaining, Cui Qingru was hit hard and stood there on the spot, feeling enlightened. There was nothing to understand about the hot room, but people in the world just didn't expect it.

"Mr. Talent, students admire him." Only a hot room had a warm heart. After ten years of hard work, I couldn't learn such knowledge in the book.

Sure enough, the more dull it is, the more reasonable it is.

"Okay, don't be polite. How much iron can this ink stone furnace gallbladder be able to smelter at a time?" Renault asked. The black material he felt was graphite. The graphite crucible has a long history and has a very high ignition point. Even if it is occasionally used on the earth, it can withstand high temperatures of more than 3,600 degrees. Such flame retardant materials are rare, but cheaper than graphite.

Moreover, the graphite crucible has very good thermal conductivity, which can quickly absorb a large amount of heat and shorten the smelting time.

"Mr. Hui, this is a ten-meter furnace base, which is a medium-sized iron smelting furnace. The furnace gallbladder can hold 300 kilograms of material at a time, and the iron is about 240 to 260 kilograms." Cui Qing really understood, and he could speak out at once. Renault was quite satisfied with his hearing. This is a talent.

The crucible is just too small. It only has 300 kilograms of material at a time, and the output is more than 200 kilograms of iron. The laboratory-level output is no wonder Da Chu lacks iron. As for steel, it is even more lacking. In Da Chu, it seems that there is no name for steel, which is called Jing Iron.

It took only half a day to get a furnace out, replenish the furnace, clean the residue, and add materials. It took at least one hour. In this way, if you get up early and go to bed late, you will be the end of the two furnaces.

"How many large iron smelting furnaces are there at a time?" Renault asked with a frown.

"Five hundred large-scale materials were added, and more than four hundred iron was released." Cui Qing replied.

This is not much. I can understand the work of the craftsmen. It’s not that I can’t build a larger furnace or furnace, but that I can’t do it.

There are no cranes or gantry cranes here, and they all rely on manpower. Just think about it, a furnace gall is not light, plus five hundred kilograms of material, and it is still a high temperature of thousands of degrees. After smelting, it is impossible to come out.

Renault reminded himself not to underestimate the wisdom of the ancients. They just have little knowledge and have not accumulated enough knowledge. It’s not that they are stupid, but that they have no choice.

"How long will it take to build the furnace?" It was already midnight. Renault saw deep fatigue on the craftsman's face. A little farther away, the woman didn't sleep, holding the younger child and looking at this side.

"It will be almost done soon, in another hour, all we need to build is the base and furnace of the furnace. The furnace gallbladder is ready-made and can be used when transported tomorrow." In fact, Cui Qing was also very tired, but he felt he could still hold on.

"Okay, after building the furnace, let's rest. Let's prepare the hot soup for food. It's already cold this day. Be careful not to get sick." Renault said, turning around and leaving with Huya. He knew that his here would only affect the progress. Since he looked very professional, he should not cause trouble here.

When he returned to the room and sent Huya to rest, the boy was not happy and said that he was Renault's Changsu and that the master would not sleep, so there was no reason for him to sleep first. But he was still a child. When he was growing up, Renault forced him to get out and close the door and light the lights. Renault still couldn't sleep at this moment, so he pretended to be a stolen matter.

Find the animal skin paper, grind the ink and take the pen, and start painting on the paper. First, it is a material pool, a crusher, a boiler, and a bamboo curtain. From time to time, you can look through the novels in the central computer, and then add what you think of. After all, the things in the novels are too simple to write. Whoever wants to make paper according to what they write there will fail 100% failure.

Renault doesn't know much about papermaking, but he knows very well that modern papermaking requires a lot of chemicals, but here, it is purely natural and has no medicine, so he can only use the most primitive methods to make paper.

If it weren't for the redness, swollenness and pain that had become more and more red, swollen and painful in the past two days, Renault wouldn't have been so anxious that he wouldn't sleep in the middle of the night and urged this thing.

After the whole painting is finished, I will write the papermaking process. It is almost dawn outside. But looking at the five pieces of animal skin paper I wrote and painted, Renault was worried. Just by this trick, I can really make paper? This is too unreliable. It won’t be possible without paper. Always holding on to defecation will hurt your body.

I was so tired that I couldn't do it anymore. Even though I was very hungry, I still fell on the bed. Let's talk about it after sleeping for a full time. Inventing and creating this job is really not something that humans do. I know the direction, but when I really do it, I know when I will succeed.

After breakfast, the Ninth Princess brought Si Ji and Siwu to Renault's courtyard. Looking at the tiger teeth that were shaking slightly, she didn't say anything. She had known for a long time that this was the gentleman's Changsu and was very kind to save his life.

Renault rarely goes out, so naturally he doesn't know how famous he is in Dingjun City. Not to mention him, even Huya is known. There is nothing that Humei and the others can't do when they go out to do.

"Sir... I haven't woken up yet and I'm going to bed until dawn." Huya mustered up the courage and said, after all, he was just a little bitch. The princess in front of him was a royal princess. The identity gap was too big. She could stand firm and make things clear, because she had been used to seeing big people these days. If it weren't for the past, she would have been lying down and kowtowed.

"You are the tiger teeth. Since the gentleman has not woken up, I will definitely not wake him up," said the ninth princess.

"This..." Huya didn't know if he should let anyone in. The Ninth Princess is a noble girl, a big noble girl, but the gentleman is also a noble man, a great noble man. He really doesn't want to get involved in this noble man and a noble woman, but he is Changsui.

"Huya, you were here last night. I am now a maid of Mr. Sweeping the room and organizing books for Mr. Sweeping the house and organizing books is the duty. Why did you stop me?" The Ninth Princess was in a very good mood and was in the mood to joke with Huya. She naturally could see how embarrassed Huya was, just to tease him. She knew that although he was not small, he was actually only thirteen years old this year and was still a child.

Yes, the gentleman agreed to let the Ninth Princess be the maid, and seemed to say a lot of things. At first, the gentleman was not very happy, but later he agreed. Huya didn't understand very well, but he knew that the Ninth Princess didn't lie to him.

"Okay, Princess Ninth, please be gentle, don't make the noise." Huya was quite worried.

The Ninth Princess smiled softly: "I am a loyal person, I should be rewarded."

Hearing the Ninth Princess' words, Siwu took a step forward, took out a gold coin from his small purse, and handed it to Huya.

Huya took the gold coins stupidly and didn't know how to give him a reward. No one had ever rewarded him before. The money given by the old gang leader was monthly. I occasionally gave me some medicinal herbs, which was loved and there was nothing to be rewarded or not.

Siwu was about to walk over, and then he realized, scratched his head, feeling that he could not ask for other people's money in vain: "Wait, I have something to give to you too."

As he said that, he took out a gourd from his arms, unscrewed the mouth of the gourd, and poured out three life-saving pills from it: "Sister, these are for you to practice martial arts."

They are all martial arts practitioners, and you can see when you walk around that the Ninth Princess and Sister Si Ji have never practiced martial arts. This sister Si Wu is very powerful, and she is probably still above him. He really can't tell that Si Wu is an eighth-grade master, and among martial artists, she is already a great master.

"Life-saving pill?" Before the pill was received, Siwu recognized it. He took it and found that it was indeed the best life-saving pill, and the materials used were at least three-leaf red pills.

The Ninth Princess was shocked when she heard this. With her identity, it is naturally not rare, but it is rare. Who is Huya? A child and a merchant guard can give out three life-saving pills at will?

You know, if you take it out for auction, these three life-saving pills will be at least hundreds of gold coins, and some people will rush to buy them.

I had thought before that as a princess, I wanted to make friends with the people around me, and asked Siwu to give her a generous reward of one gold coin, but compared with the three life-saving pills, she was too stingy.

Can anyone take out the medicine like life-saving pill?

"It's too expensive." The Ninth Princess stopped and said, and Siwu naturally knew it was valuable. Female officials like her had been selecting good materials since childhood and piled up various medicinal materials in the palace. They had only one mission, and when the princess was in trouble, she would block the knife with her body.

The more female officials like Siwu, the more they understand the preciousness of the Life-saving Pill. The Emperor of Great Chu was rich in all over the world, so he had to make careful calculations when distributing medicinal materials to them. Anyway, Siwu had reached the eighth grade, but he had never handled the Life-saving Pill.

"Back to the princess, this is the elixir used for us to practice martial arts. When you have nothing to do, it is not expensive." Huya waved his hands repeatedly. He didn't know how many gourds he had eaten these days. Originally, Humei asked everyone to take Shendan, but Mr. said Shendan was not good, so he took this.

Sir, it’s so amazing. People around you can take the life-saving pill at will. The Ninth Princess and the two female officials were stunned. The life-saving pill is not a medicinal material for practicing martial arts, right? It is used to cure life and harm the wound.

"I'll thank you for Siwu, please accept it." The Ninth Princess was so arrogant. After hearing what Huya said, she ordered Siwu to accept it, turned around and continued to walk into the house.

"Si Ji, go back and order Sichen to prepare the meal and warm it up, and wait for the gentleman to wake up and pass on the meal."

"Yes." Si Ji took the order and left.
Chapter completed!