The importance of steel to a country is self-evident, and the school is only a potential impact, a long-term plan, and it is unlikely to play an important role in the short term.

Although according to Li Yuanji's description, Ma Zhou realized that this so-called school would be regarded as an alternative, but with his unique vision, Ma Zhou was almost certain that in the future, this school that was regarded as an alternative would become the main force driving Datang forward.

Although the school is Ma Zhou's main work in the future, Ma Zhouxian is more concerned about steel than the school.

The two of them walked in front, and Yu Chi Jingde was boredom following behind his ass and dangling, guarding the task of King Qi, now for Yu Chi Jingde, it was as easy as a vacation, and he didn't need to worry about it at all.

Coming to the research site set up separately for the Academy of Sciences, a large mansion is divided into dozens of small mansions, and the layout of each mansion is different according to different uses.

Where Li Yuanji and the others came, there was only one room used for office, and there was only one huge shed in the whole courtyard, and under the shed were busy craftsmen, some were making iron, and the equipped paperwork was staring closely at the furnace, and then kept recording the visual data.

On the other side, more than a dozen craftsmen are building a new stove, but this one is only roughly similar to the one next door, and has been improved in many places.

The scene in front of him made Ma Zhou feel very unfamiliar, not only the craftsmen who were making iron and building furnaces, but even the entire Academy of Sciences, Ma Zhou had a strange feeling.

Deep down, once again a stream of self-blame flowed out.

"Your Highness, Your Majesty seems to be here!" Chunhua, who was standing outside the door, suddenly ran in in small steps, standing beside Li Yuanji and whispering.

Ma Zhou was stunned, obviously he didn't expect that not long after he came back with his front foot, Li Shimin followed with his back foot.

Li Yuanji was very frank about this, and said indifferently: "Come here, just show him the results of our Academy of Sciences." ”

Li Yuanji's words made Ma Zhou fall into a deep sink again, and he still couldn't understand what Li Yuanji's purpose was? is obviously an opponent, and he obviously has a deep hatred, but he can be so open.

In this rehabilitation, although Li Yuanji went out as a prisoner, he made great contributions, but Li Yuanji made a fatal mistake, which led to Li Shimin not even mentioning Li Yuanji at the celebration banquet that night.

Li Yuanji's approach made Ma Zhou feel very contradictory, obviously having the ability to play with others between applause, but he always hid his clumsiness and refused to make a move, and even repeatedly exposed himself to danger.

Secretly wiped his eyes at Li Yuanji, Ma Zhou had a headache again, what did he want to do? And what do you want?

With Ma Zhou's cranky thoughts, Li Shimin took Chang He into the mansion, without deliberately waiting, Li Yuanji still just stood there, watching every move of the craftsman in front of him.

"I heard that you have improved the iron-making process, which has greatly increased the yield of steel by a hundred-fold?" Standing beside Li Yuanji, Li Shimin deliberately suppressed the majesty of the emperor on his body, and tried his best to calm his tone.

"I just came up with an idea that they are the ones who really improve the process, not me!" Li Yuanji looked at the craftsmen who were busy and did not take the credit on himself.

The busy craftsmen still go their own way, busy with the work at hand, no one stops to see their own emperor, Li Shimin is quite emotional, I just heard that the biggest rule in the Academy of Sciences is that there are no rules, here, the experimental work is greater than everything, and now it seems that it really deserves its name.

"I'm curious, how did you do that?" Li Shimin, who had seen ironmaking, was still a little unfamiliar with these strange devices in front of him, and he couldn't even tell what some things were for.

Since the rebellion of the eldest grandson Wuji, Li Shimin has hated and loved Li Yuanji, wants to reuse, and is a little worried, except for the distribution of power, Li Shimin has been able to talk with Li Yuanji calmly.

"The focus of ironmaking is the increase in temperature, as well as the removal of iron ore impurities, the so-called 100 refining into steel, but through repeated tempering, the internal impurities are removed, since there is a purpose, then find a way to improve.

If you want to raise the temperature, the current firewood is inevitable, and the temperature of blackstone burning is higher than that of firewood, but after research, it seems that the temperature is still not enough, so I came up with the idea of making blackstone like charcoal, which is a bold proposal, no one has tried it before, but fortunately it succeeded.

The fuel problem was solved, but the temperature still didn't seem to be enough, and the ore could only be melted through a long period of heating, but it was difficult for the temperature to continue to rise after melting.

At this time, I was asked to throw a torch into the dusty cellar, and the flame would quickly decrease, or even extinguish, and then, according to this proposal, there was this, through these six huge bellows, a large amount of air was blown into the furnace, and the temperature rose again.

In this way, the iron is practiced, much more efficient than before, and a lot of effort saved, the hardness is comparable to steel, but there is still a lack of some, and then some craftsmen inadvertently sprinkled some lime powder into it, and the result is a big surprise, the impurities were removed, and it only takes half an hour to turn a furnace of molten iron into molten steel. Li Yuanji explained as he pleased, not taking credit from himself, but giving some of the credit that originally belonged to him to the craftsmen who were busy.

Li Yuanji's process combined with the steelmaking methods of later generations, but in the Tang Dynasty, which lacked industrial equipment, the efficiency was still less than one percent of that of later generations, but now, this efficiency is a hundred times more than that of the present.

"Propose goals first, find out the key points, and then improve step by step!" The iron-making process that has plagued the Chinese nation for thousands of years was solved by Li Yuanji so simply.

Li Yuanji's understatement makes people sound as if it is very easy and easy, at least Li Shimin did not perceive any trouble from Li Yuanji's words, but the real process can never be so easy.

In a word, let Li Shimin know what the research process of the Academy of Sciences is like, seemingly ridiculous projects, but one by one, they are all down-to-earth, step by step.

"How much money do you plan to sell this craft to the imperial court?" Thinking of the agreement between the two, remembering that he was planning to take revenge on the Turks, if the soldiers of the Tang Dynasty could have weapons made of steel at that time, they would inevitably defeat the Turks at the lowest cost, Li Shimin was faintly excited.

The things that have been agreed on a long time ago, Li Yuanji is not angry or dissatisfied, iron and steelmaking, from the beginning to the present, it has cost about more than 2,000 yuan, Li Yuanji does not want to make a lot of money by this, but he also never wants to make no money, thought about it, opened his mouth and said: "The cost is about 3,000 yuan, at least 4,000 yuan to take away, below this number, my money bank will be closed." ”

Four thousand guan, buying this kind of key technology that is enough to directly improve the combat effectiveness of the Tang army, is not much, and Li Shimin does not think that Li Yuanji's increase in the price of one thousand guan is a trick.

But......

"Or do you want to take the land for the price?" The poor and white court really can't take out so much money, let alone 4,000 guan, and there is no money left over for 1,000 guan, otherwise Li Shimin wouldn't have to think about streamlining the imperial court for such an offending thing.

"What am I going to do with so much land? No matter how much land there is for a while and a half, it will not be able to change money, and without money, the project will not be able to continue. Li Yuanji shook his head, he must not develop this habit for Li Shimin, and easily use the land as money, Lao Tzu's ideal is not the landlord, what do you want to do with so much land?

Li Shimin's face was full of embarrassment, which made him covet the technology, but he couldn't afford to buy it, and he didn't want to drag it out, Li Shimin had never encountered such an embarrassing situation.

"Why don't you go to my bank and borrow some money?" It seems that he had expected it a long time ago, Li Yuanji did not put on a posture of not giving money and not giving technology, it was not so necessary, and he did not have the ability, if Li Shimin was forced to be urgent, it would not be good for himself, it was better to live in peace, and by the way, promote the business of his own bank.

Although the money village does not have so much money, and even the assets are still negative, Li Yuanji is not worried, most of these negative numbers come from the lending business, as long as the imperial court is also pulled into the water, the business of the money village will inevitably rebound, and it is just a left-handed change to a right-handed, which only increases the loss on the books, but in fact it is still a lot of money.

"Loans?" Li Shimin had heard of Li Yuanji's money bank loan, when he first invested in the cement workshop, almost all the shareholders made loans, and the way to repay the loan was to deduct the profits that should be distributed to each household, and until the principal and interest were repaid, they would be given money.

"That's right, deduct all the taxes I should pay, and then pay taxes to the court again after the deduction." Li Yuanji explained calmly.

"What about interest?" Li Shimin thinks that this method seems to be feasible, but when he thinks of the interest rate of Qianyi, he has a headache, a loan of 4,000 yuan, a day's interest is four yuan, how many days does it take to pay it off?

"I'll give you a discount, the daily rate is ten thousand!" Li Yuanji waved his hand, now the interest rate of Qianzhuang has reached one thousand, if the strength is not enough, it will even reach one thousand and a half, and it is already interesting to give an interest rate of ten thousand eight.

"It's too high, you give Zhijie all ten thousand five, why did the price increase when I got here?" Li Shimin's bargaining like a peddler's pawn did not have the demeanor of an emperor at all, but he was full of market posture.

"Wan Qi, no matter how low it is, I won't do this business, I will lose money!"

“……”