People in Datang have been expelled from school

The boiler has been running for three full hours, and it can continue to run. As long as coal is added to it, the operation of the boiler will not stop.

Li Zhi looked at the boiler and sat down satisfied. This is something that Daniel has never made.

At this moment, Li Zhi felt that he had really learned something.

Although the operating principle of the boiler is simple, the mechanics and thermodynamics are not comprehensible to ordinary people.

For several days in a row, Li Zhi stayed at the boiler. After five days of continuous operation, the boiler finally overheated and broke down. This is the limit of the boiler now.

It can run continuously for five days at a time, but as long as the temperature and air pressure are controlled, it can last for a long time.

Tie Da saw that the thing he finally made broke again, and said distressedly: "Why is it broken again?"

Li Zhi took the blueprint and said, "Just follow this blueprint and make a few more!"

Tie Da didn't know what Li Zhi built such a strange thing for, but he did it anyway.

Li Zhi returned to the academy and wrote down the process of casting the boiler.

Daniel said: "Congratulations, the boiler is finally built."

Li Zhi said: "The boiler is the power source."

In the past two years, Li Zhi has been specializing in mechanics, and the source of power has always been a headache for him.

It's like a bottleneck, if the boiler cannot be built, then Li Zhi's mechanics will always be limited to the theoretical stage, making no progress all day long.

The completion of the boiler today is a manifestation of Li Zhi's transition from theory to practice.

Breaking through the bottleneck, Li Zhi seemed to have stepped out of his inner demons, and his whole being suddenly became enlightened.

What I have insisted on and learned for so many years has finally been verified.

Daniel said to Li Zhi: "I heard that you are going to work in the county government office in Jingyang during this time?"

Li Zhi stretched his muscles and said, "It's true."

Daniel said in a low voice: "This will be good for you, and you can relax your body and mind. Too much indulging in it is not a good thing."

Li Zhi took a deep breath and said, "It's true, I won't come to the academy these days."

Daniel nodded, "After you adjust, we welcome you when you come back. You have always been a member of us."

Li Zhi grinned.

The moment I walked out of Jingyang Academy, the scene of studying difficult and difficult physics knowledge seemed to be in front of me.

Looking at the students coming and going in the academy, Li Zhi felt that the world in front of him was much wider.

Li Zheng was sitting at home, holding a file and looking at it. The file was brought by Xu Jingzong, and it contained various things in Chang'an. Li Chengqian and Changsun Wuji were getting closer and closer.

The actions of the envoys of various countries are also recorded on it.

The envoys of Wa and Goguryeo went back after seeing Li Shimin.

The cold wind in winter blew again, Li Zheng tightened his clothes and took a sip of hot tea. When Li Zhi came back, he said, "Congratulations, Your Highness Jin, your boiler has succeeded."

Li Zhi looked at Li Zheng and said, "No matter what you say, I can build the boiler thanks to your guidance."

Li Zheng said: "His Royal Highness Jin Wang laughed, I just said it casually, so it can't be regarded as a guide."

Li Zhi said in a low voice: "In short, I couldn't build this boiler without you."

I have to say that Li Zhi is too honest a child.

Li Lizhi could still see it clearly.

When Li Zhi returned to his room, Li Lizhi came to Li Zheng's side and said, "This child Li Zhi is really..."

Li Zheng said: "It's really not very smart, is it?"

Li Lizhi said with a sad face: "Actually, you are the one who really wanted to build the so-called boiler. You arranged for Li Zhi to learn mechanics-related knowledge, and you also directed the manufacture of the boiler. You used him to make it." After leaving the boiler, you were the one who arranged it from the beginning to the end, and he still hasn't understood it."

Sometimes I think about Li Lizhi, a woman with a high IQ, and sometimes I think about this woman who is also very bold and careful in doing things.

Holding the tea, Li Zheng said, "I used him, are you angry?"

Li Lizhi whispered: "If I say I'm angry, will you apologize?"

The couple looked at each other and smiled.

Li Lizhi said: "Sister-in-law has also reached her age, and I plan to arrange her a room of her own at home. She is not young, so I can't let her stay by my imperial sister's side all the time."

Hearing this, Li Zheng paid attention to Li Lizhi's eyes. Could this woman be implying something?

Give Xiao Si a separate room, so that Li Lizhi's bedroom will be free.

If it was a hint, but the woman didn't blush when she said this, it seemed like it was not such a big deal.

Li Zheng took a sip of tea calmly.

Li Lizhi said again: "I have already contacted the woman from the Li family in Zhao County. Li Xun said that she can run the coal mine business with us, and she also said that she is willing to sell the area north of Mangshan, which is the area in Guanzhong. The business is all over to us.”

Li Zheng frowned and said, "So grand?"

Li Lizhi said: "Of course she can't do such a big business by herself. She probably doesn't have such great strength at all. We just need us to match her up so that her business can enter Guanzhong. Besides, it is also good for us, and ..."

Speaking of this, Li Lizhi paused and said: "And she also said that she thanked us for helping to take care of the Wang family siblings."

Li Zheng whispered: "She uses us to open up business routes for her?"

Li Lizhi smiled, "This woman is quite good at taking advantage of the situation."

Jingyang's commercial scale is indeed very large, but it is also easy to form a situation where the tail is too big to lose.

Allocating most of the benefits to Li Shimin is also for the sake of the future.

Now Jingyang is focusing more on Jingyang Academy and the engineering team. The sea-going ships in the East China Sea are still under construction and it will take time to make some achievements.

Li Zheng said to Li Lizhi: "The blacksmith shop needs more copper and iron."

"Is it for casting boilers?"

Li Lizhi said in a low voice.

Li Zheng was drinking tea, "This boiler is of great use to us in Jingyang. It can change our current manufacturing dilemma and raise Jingyang's productivity to another level."

Li Lizhi didn't have any doubts about Li Zheng's words, since Li Zheng said so, it must be possible to achieve this effect.

After thinking about it for a while, Li Lizhi said: "Casting a large amount of copper and iron will inevitably attract the attention of the court. I will first write to my mother to clarify this matter."

Now Li Shimin has strict control over salt and iron, not to mention copper.

Copper coins are related to the circulation of silver coins in the Tang Dynasty.

Li Lizhi looked at Li Zheng's expression, "Whether the father agrees or not, you must use copper and iron to cast the boiler, right?"

Li Zheng supported his temple, looked sideways at the vegetable field in the yard and said, "I never thought of getting his permission."