How casual the family is, there is no psychological burden at all.

I used to plan to pit other people's money, but now I don't want the money, and I want to change it to the family's books.

Didn't the families put the craftsmen in the third class, then they might not pay so much attention to the books of the craftsmen.

If you want someone else's family to be unborn and unique, it may not work.

The family regards those books that have been handed down from an unknown time as a foothold, and it is easy for others to not even look at them from a distance, and if Li Chengyang asks them for those books, it is equivalent to taking their lives.

But this kind of book that records the things of craftsmen is not so precious.

The Maison must not have known that a few words in some books may be enough to change the pattern of the whole world, and still inherit the style of the heirloom of poetry and books, and plan to continue to carry it forward.

Who would have thought that in the Saga Library, an inconspicuous corner, or a book with a corner of the book, once born, would be enough to change the whole world.

It's not Li Chengyang's exaggeration, steel definitely has an incomparably leading position in the current Datang.

If steel can be produced in large quantities, then it may only take tens of thousands of heavy armor soldiers, which is enough to push Datang sideways.

This is a difference on a technical level, and it cannot be solved in terms of the number of people.

Just like the former Han Dynasty, when a Han Dynasty was a Wuhu, a heavily armed Han man could fight five barbarians on the grassland alone.

On what basis? The body of the Han people is inherently not as strong as that of the steppe people, and this cannot be changed whether it was, is, or will be.

But why were the Han Chinese able to withstand an enemy five times their own?

It's not just a matter of equipment, at that time in the Han Dynasty, iron armor and iron weapons have been widely used, most of the Han soldiers have more or less some armor, and each person is equipped with an iron knife as standard.

On the other hand, what did the steppe people take at that time?

The bones of cattle and sheep, picking up a stone and sharpening it are weapons, and it is strange to use that thing and an iron knife to cut it, and it is strange if it does not fail.

Why did the steppe people get stronger and stronger? Because they have more and more iron weapons, Li Chengyang was taken care of by the rain of arrows when he blocked Jieli's striker on the bridge.

At that time, the Turks shot a rain of arrows in the first round, and then they shot bone arrows.

The weapons that the Turks didn't have were not very good, but they weren't bad either, barely.

Since the Tang Dynasty, the grassland people have gradually changed from weak to strong.

At the end of the Eastern Han Dynasty, Cao Cao, Liu Bei, and Sun Quan fought to the death, and there were no barbarians on the grassland who took advantage of the chaos to raid, which is a clear proof.

Then the events that happened became a turning point in history, and that period of history was really cruel, and Li Chengyang didn't want to think about it anymore.

In short, after that incident, the attack and defense of the steppe people and the people of the Central Plains began to be exchanged, and it continued until they finally attacked the Central Plains and established their dynasty of the steppe people.

And one of the most important reasons for all this is that the steppe people plundered a large number of ordnance and a large number of craftsmen in the Central Plains.

The people of the Central Plains look down on craftsmen, but they are treasures on the grassland, and the craftsmen who can build weapons live even better there than in the Central Plains.

There are more weapons and armor on the grassland, which pulls the armaments of both sides to a unified level, coupled with the characteristics of the grassland people themselves who are strong and proficient in horsemanship, which is why they are now unscrupulous.

Iron armor has an overwhelming advantage over bone weapons, and a piece of iron armor, even if you stand in place and let the bones fight, it will not pose any threat.

Steel also has an overwhelming advantage over iron.

What was the ancient way to test if a knife was a good knife? Take the knife and slash it at the iron armor, and only those who can chop it are called good knives.

Cao Cao made the hundred refining knife at the beginning, and one knife cut through thirty of iron armor, and slashed against the iron weapon, and the iron weapon was broken and the hundred refining knife did not see the slightest trace.

It is clear how good the advantages of steel are compared to iron.

is such a good thing, but hundreds of years have passed in obscurity, to be honest, Li Chengyang is really a little sad.

If the person who came up with the steel filling method at the beginning could survive and break the old idea that the law is not passed on lightly, presumably today's Datang does not know how many times stronger than it is now.

It was decided that compared to money, or that knowledge was more important, even if there was no record of the steel filling method in the family's collection, there might be other ways, not much, as long as you can find a lost thing, it will be earned.

I'll talk about it later, but the most important thing now is to see if he can train the steel through this method first, and his six guards urgently need to update their equipment.

Wu Li's coal stove was half built, and Li Chengyang looked at it for a while before running to pull the bellows for him.

"Your Highness, you say this thing can really defend against charcoal poison?"

Seeing that Li Chengyang had finished thinking about things, Wu Li asked what he had been holding in his heart for a long time.

Li Chengyang looked at the round iron sheet that had been closed and nodded: "According to your method of building, it should be fine, you just need to ensure that there is no air leakage, then there will be no problems."

"Hehe, that's a good dare", Wu Li wiped the sweat from his face, and smiled toothlessly.

"Of course it's good, this thing can not only be used in winter, but also in summer, it can also be used for cooking, you can't burn much coal a day, compared with the previous wood, it really saves too much money", the coal stove is still quite affordable.

"Huh?".

Wu Li was startled, the hammer in his hand was almost smashed, and he finally stabilized his figure and asked Li Chengyang:

"Your Highness, if this can't be burned much, how can we make money, if we can't make money in winter, it won't be long before our Ministry of Industry will have to see the faces of the people in the household department."

This person, really, looks at others saying that others are the head of the way, once it involves himself, he is a big fool, and his brain is obviously very easy to use, and he is instantly funny.

Of course, he Li Chengyang is not good at saying this about Wu Li, and he was like this yesterday.

Human nature, human nature.

"Do you know salt?" , Li Chengyang looked at Wu Li with the eyes of a fool.

Wu Li nodded stupidly: "I know, but what?" ”。

Li Chengyang patted his head: "But what, but, from now on, coal will be on the same level as salt, and you will become the largest coal dealer in Datang, or a regular coal dealer certified by the imperial court, why can't you make money."

Wu Li thought about it, and his frowning brows bloomed visibly with the naked eye, as if he had been smashed in the face by the overwhelming silver.

Come on, this man is stupid and hopeless.

Li Chengyang got up from the ground and ignored Wu Li, who had completely fallen into a hallucination.

"Young master, young master, the black stone is here."

Just as he was about to go to other places to wander around and keep a certain distance from the fool, Li Yi suddenly appeared in front of him.

"Then what are you waiting for, pull in and pull in", Li Chengyang's eyes lit up, and there was something to do now.

Li nodded, went out, and beckoned a few secret guards to walk in with a big cart.

"You guys, break all this coal into small pieces."

Li Chengyang pointed at the secret guards, and then went to prepare the furnace for ironmaking.

"Old Wu, Wu Li, don't fucking be stupid there, where is the iron ore in your Ministry of Industry, go get some for me", looked back at Wu Li, who was still smirking, and was angry, he didn't fight anywhere, he was doing business here, can he be serious.

Wu Li was woken up, scratched his head embarrassedly, and moved a pile of iron ore from his side room:

"It's just that I got it a long time ago, and I used these attempts to use coal to make iron, and the quality is much better than the rest of the iron ore, Your Highness, you try it first."

Li Chengyang didn't know whether the iron ore was good or not, but since it was said by a professional, then he believed it and did the experiment.

The first furnace of crushed coal has been moved, and Li Chengyang ignites the coal.

It was difficult to burn the original coal, but it was not a big problem, and as soon as the fire blower blew, the flames came out.

Looking back at Li Yi: "A few of you, separate the handle of this courtyard, and no one is allowed to approach until I do a good job here."

Li Yi nodded helplessly, waved his hand to arrange the scope of their respective responsibilities, and disappeared without a trace as soon as he hid in the shadows.

The dignified secret guards were canceled by Li Shimin, and now they can only be reduced to miscellaneous work, which makes Li Yi really unaccustomed to it, and he doesn't know when he will be able to restore the scenery of the secret guards.

Li Yi's careful thinking Li Chengyang naturally didn't know, he only had a furnace of iron ore in front of him in his eyes now.

As soon as the fire was burning, Li Chengyang couldn't wait to find an iron chisel and stir it in the hourglass.

The piercing sound of friction sounded, and Li Chengyang realized that he was in a hurry.

Watching the coal fire whirring out, the iron ore in the hourglass did not change in the slightest, anxious like an ant on a hot pot, one would take something to play with the hourglass a few times, and then go back to the bellows and pull it up desperately.

After a long time, the iron ore slowly began to change, which made Li Chengyang half relieved.

"Your Highness, you say that this kind of coal can really train steel?".

Wu Li's voice sounded behind him, and the frightened Li Chengyang almost jumped up.

"I don't know, it's just possible, how did you get here?" , Li Chengyang stared at the coal stove and didn't even look back.

Wu Li stretched out the things in his hand in front of Li Chengyang and shook it: "Everything you want to do is done, why don't you come and take a look?" ”。

Li Chengyang looked at the iron pipe and was stunned, how did it pass so fast?

Looking back, an ugly stove was in front of me.

A cylindrical furnace with openings on the top and bottom, and an opening on the side.

How uncomfortable is it to look at, but it seems that it can really burn?

"Okay, when it's done, put some coal in, by the way, you're getting a kettle out, let's experiment on both sides", Li Chengyang ordered, no matter what Wu Li's reaction was, he turned his head and continued to stare at his iron-making furnace.

Wu Li scratched his head, took out a few pieces of charcoal from his stove as a starting fire, picked a few pieces of coal of the right size and threw them into the stove.

He didn't know the kettle that Li Chengyang said, but he could really understand what Li Chengyang meant.

It's the one that specifically blocks the mouth above, no problem.

After the same cylindrical kettle was finished and placed on the stove, there was also movement from Li Chengyang.

"Wu Li, come over here and see if this is molten steel?"

Hearing this, Wu Li hurriedly rushed towards Li Chengyang's side.

The iron ore in the hourglass had completely melted, and the rest of the magazines were skimmed out by Li Chengyang, who was holding an iron rod and constantly stirring the molten iron.

Wu Li stared carefully, nodded, and shook his head again.

Li Chengyang was anxious: "Whether you succeed or not, you give a happy word, this nods and shakes your head, what do you want to do?" ”。

"It's half-done", Wu Li glanced at it carefully, and he also looked a little excited.

"What about the quality? Can it be used directly to make weapons and armor? ”。

Wu Li nodded: "Yes!" ”。