Ignore how to spend these two gold bars of curry and chili. Anyway, Cao Wei sent it out, and he was ready to beat the meat buns to the dog.

As long as they didn't go to buy laundry detergent, even if they took a boat to Haozhou overnight and bet all the money, Cao Wei wouldn't be able to accept it here.

At most, they will teach them an unforgettable lesson. After all, everyone is an adult, and adults must have an adult interaction. Cao Wei already has a basic plan in his mind.

He brought the pile of things he bought into the house and turned around and closed the door. Cao Wei immediately heard Zhou Zhiruo's voice.

"You two stupid disciples are gone?"

"I'm leaving, probably I don't know where to go and have fun."

Cao Wei looked back at the living room, but also reported to Zhou Zhiruo happily.

Today's Zhou Zhiruo is different from the past, or Zhou Zhiruo's habits are different from Chen Jingyi.

It changed the clean and neat style of Chen Jingyi in the past, and even her clothes were more neutral. Today, Zhou Zhiruo rarely put on light makeup and put on a long skirt. Holding a book in her hand, she just leaned on the sofa casually. With her already bright and charming appearance and her fairy-like grace, she really felt a peaceful and beautiful feeling.

This made LSP like Cao Wei a little stunned. However, he still remembered the identity of Master Zhou Zhiruo, so when he quickly came back to his senses, he immediately turned his eyes back to the pile of delicacies.

"On such an important day, I don't bother with those two idiots. I will train them slowly in the future."

"Today, I have to serve you, Master, sister, before talking about it. Now, I have bought all the things back. Today, let's get a seafood three-way competition and then a authentic Bashu hotpot. By the way, I still have time for Master, you are from the riverside, so I have bought a few fish back. I don't know if you like to eat fish sashimi or fish sauce steamed rice. But no matter what, I will surely make Master, you feel like you are back to your hometown..."

Zhou Zhiruo was born on the banks of the Han River. When she was young, she made a living with her father. Later, when the Tartars were plundered, she was lucky enough to be rescued by Zhang Sanfeng, and then she was sent to Emei to become a disciple of the Emei Sect, where she spent decades.

So, you can say that her hometown is from the north and south of the Han River, or that she is from Bashu. In short, you can find the reason. But if you say that Cao Wei can remember all the unknown past clearly and tell them casually, this is really a matter of thinking.

Zhou Zhiruo was a little moved, so she put down the book and nodded slightly at Cao Wei.

"You're considered intentional..."

"It should be, it should be. Master, you came here from hundreds of years ago. This is a rare fate. Although I, an apprentice, cannot let you enjoy it for a few more days, I cannot be ambiguous at all if I can do it."

"You are doing it here, I'll go to work first. I'll call you when I'm having a meal."

Cao Wei's quick words seem to be a happy event no matter how you look at it. And this is true, because both the system prompts and Zhou Zhiruo's self-perception have been clearly informed, and there is only one day left for her stay in this era.

Not to mention this day, Cao Wei lost an aunt who always yelled at him in the name of his master and apprentice. Just by letting Chen Jingyi return to his true nature and he can finally do some shy things with Chen Jingyi, which is enough to make Cao Wei very excited.

Summarizing these excitement into one sentence, do you know how I spent these days? Not seeing each other for three autumns.

Zhou Zhiruo could vaguely guess Cao Wei's little thoughts. But she had no choice. After all, even if she is a master, she should not be punished for Cao Wei's false guilt just because he had not yet achieved what he thought.

So she could only shake her head and then focus on the book in her hand.

"How is steel made"...

This is not Ostrovsky's finished work. It is a highly summarized and illustrated by modern metallurgy on human steel production technology in past history.

The author of this book is an unknown person. After all, those who conduct past technical summary research are definitely not as good as those of the cutting-edge people. But this person has a profound technical foundation and studies history. After summarizing it, he can not only tell the steel production in various eras, but also combine the technological changes in later generations and mineral resources in various countries to sort out a relatively reliable personal opinion.

And this is exactly the knowledge Zhou Zhiruo needs most at the moment.

She has not forgotten her idea of ​​bringing gun technology back to the early years of the Ming Dynasty. She has now sorted out the key to gun technology, not the firearm design problem, but the steel production and quality problem.

She can draw the design drawings of the revolver herself.

It is not a joke to put words like "beautiful and talented" on her. Two days of groping can make her remember the parts of the revolver. Even if it is based on memory, she can copy the relevant drawings.

But the problem is that Cao Wei has a right thing to say. That is, simply making a gun has no meaning. Without gunpowder, it is just a decoration. Without high-quality steel that can be produced on a large scale, this thing is just a rare toy for a few people.

It’s easy to say about gunpowder. As the birthplace of this thing, as long as you can remember the modern gunpowder components and synthesis methods, it would not be a problem for the huge Ming Dynasty to create more advanced gunpowder.

Only steel is there, and only steel. This technology cannot be achieved overnight, nor can it be easily promoted as you want.

China has been short of iron since ancient times, and the iron ore owned in China is basically poor iron ore. It is impossible to form high-quality steel without certain technical refinement.

Although technology is improving, due to mineral deposits and social demand, coupled with policies and other reasons, the output of steel has been fluctuating, and there is no particularly big progress at all.

To talk about data, it is probably that steel production was organized by the official in the Han Dynasty, and it could produce about 5 million kilograms of steel every year. In the Tang Dynasty, because private sectors were allowed, this output decreased, and the peak period might be only more than 2 million kilograms.

During the peak of the Song Dynasty, tens of millions of kilograms of steel could be produced, but in the Yuan Dynasty, it fell back to eight million.

It was not until the Ming Dynasty that steel production climbed back to its peak, with a maximum output of 90 million kilograms sounding terrifying. But if you convert the unit slightly, the annual steel production of 45,000 tons is less than a fraction of the early days of the founding of the People's Republic of China.

When the founding of the People's Republic of China was just 158,000 tons of steel production in my country. By 1983, there were thirteen large steel enterprises with an annual output of more than one million tons. In this way, in other words, in the entire Ming Dynasty, the total steel production value could not keep up with the annual output of thirteen enterprises in the past 270 years. This shows how big the gap is.

But even so, there was such a thing in the Ming Dynasty. That is, the country produced too much steel, so that the inventory was overcrowded, which forced the court to close many official iron ore smelting.

Not to mention whether this is whether the productivity has exceeded the country's basic needs, or whether the vested interests deliberately run the national industry to seek greater benefits. In short, it will not be too easy for Zhou Zhiruo to achieve explosive steel production in the Ming Dynasty.

However, it is not completely unfeasible. Because in Cao Wei's analysis, she also has her advantages.

One is the background of the times. Her era was not the middle and late Ming Dynasty. The noble family had already become big and had mixed forces to control social wealth. The national treasury was already poor, and the emperor could not even pay the food and salary of the army. As a result, these noble people had billions of wealth, and they sprinkled on the Qinhuai River to make a pickled life of tens of thousands of taels of silver.

The era in which Zhou Zhiruo lived was when the grassroots emperor Zhu Yuanzhang had just ascended to the great treasure, and it was an era when the founding heroes looked at He Xiongzai.

This grassroots emperor seemed to have never forgotten his origin. This made him extremely cruel to the Haoyou family while being extremely cruel to the Haoyou family.

If you embezzle 60 taels, you can kill them without any reason. This is a precedent in history. In addition, he was not afraid to use various cruel means, such as peeling and slapping grass, picking up tendons and breaking hands to punish these corrupt officials. He even specially formulated laws and cases like the "Great Edict" to promote the world, aiming to let the people of the world know what means to deal with those corrupt officials.

Such an emperor cannot tolerate the Haoyou family growing under his nose. Even if these Haoyou family are brothers who have conquered the world with him in the past, they will still be the same.

Therefore, Cao Wei's analysis was that Zhou Zhiruo did not have to worry about the pressure in this regard. Instead of worrying about this, she might as well worry about Zhu Yuanzhang himself.

Because it is involved in a country's steel and weapons, it is itself involved in the root of the country. Even if she does nothing, she just contributes a method. Do you dare to say that this emperor, who is known for his suspicion, will not kill you and eliminate the roots because of worrying that you will leak this method?

There are many people who died because they know too much. Cao Wei didn't want Zhou Zhiruo to follow in this footsteps.

Zhou Zhiruo has her own idea of ​​what to do and how to do it. She already has a basic plan. Anyway, she has never thought of giving up.

It was a rare adventure, and she didn't want to return empty-handed. As for the result, she had to do it after all.
Chapter completed!