Li Shimin stayed at the military academy until the evening, and the cadets did not go back until they had finished their ideological and political classes. After sending Li Shimin away, Xia Hongsheng went back to the office and told Li Shimin's statement to the teachers. Immediately the crowd jumped for joy.

Xia Hongsheng also sighed in his heart, after an excited night, early the next morning, he went to the palace to meet Li Lao Er with the house styles that he had painted in the office before.

When he arrived at the palace to see Li Laoer, he had just finished his morning exercise, but he was not the only one there. In addition to Li Laoer, there were also Empress Changsun and a group of concubines, as well as a group of princes and princesses, all of whom were there to follow Li Laoer for morning exercises. It seems that Sun Simiao's physical examination made Li Lao Er fully realize the importance of his body, and he also felt a sense of crisis from Empress Eldest Sun and Li Liqing, so he took his family to start exercising every day.

I secretly wondered why I didn't tell him that this was not Li Laoer, Xia Hongsheng didn't go in, and he didn't quit, so he stood at the entrance of the courtyard awkwardly.

"What is the pestle doing there, come and speak." Li Shimin saw Xia Hongsheng, and saw Xia Hongsheng bowing awkwardly at the door and didn't dare to come in, so he greeted.

"Yes!" Xia Hongsheng sighed, and then walked in, saying in his heart that this is the Tang Dynasty with civilized folk customs, if he changes to the braid dynasty in the back, it is estimated that he will be pulled out of the noon gate and cut off if he sees the emperor's group of daughters-in-law alone.

Xia Hongsheng walked closer, bowed down and said, "Minister Xia Hongsheng greets Your Majesty!" Meet the Queen! Meet all the mothers, your highnesses! ”

"Xia Qing is carrying something very much, bulging bag, take it and take a look." Li Shimin saw what Xia Hongsheng was carrying in his arms at a glance, so he said.

"This ...... Your Majesty, the minister has a question. I want to report to Your Majesty first. Xia Hongsheng bowed and said.

Li Shimin's eyes narrowed, he glanced at Empress Changsun, and then wiped his sweat with the handkerchief handed over by Gong E, and said with a smile: "Ask." ”

"There is one thing that is beneficial to the people and the country, but it is not compatible with the system. The minister didn't know what to choose, so he dared to come to ask His Majesty for clarification. Xia Hongsheng bowed down and asked, "Should the minister choose to benefit the people, or should he choose to go along with the system." ”

Li Shimin stared at Xia Hongsheng, and suddenly smiled: "If you have something to say, let it go, don't go around in circles here with me!" ”

Xia Hongsheng grinned: "Hehe, Your Majesty Shengming!" Wei Chen's little caution can't hide it from His Majesty! ”

As he spoke, Xia Hongsheng took out a stack of papers from his arms, and then said to Li Shimin: "Your Majesty." Since you have allowed your ministers to set up a military academy, you must first build the building facilities outside the military academy. The military academy is the 'national prison' in the army, it should be built well, the military academy is to attract people to go to school, of course, there must be a brilliant place, these are the houses painted by the minister, the minister wants to build the house of the military academy like this, I don't know if it will work. Therefore, I came to offer it to Your Majesty, and it was decided by Your Majesty. ”

Li Shimin looked at the papers as a result. After a few glances, he said, "This ...... Is this a house? How did this house come to be...... Peculiar? I have never seen a house like this. Guanyin, look, have you ever seen a house built like this? Can this live? ”

Empress Eldest Sun took the paper and looked at it, and was also surprised, but she did not deny it immediately. Instead, he said: "Your Majesty, the concubine Guanxiahou is not the kind of person who has no purpose, and there must be a reason for painting such a house, so let's listen to Xiahou's explanation first!" ”

Li Shimin nodded. Then he looked at Xia Hongsheng.

Xia Hongsheng bowed to Li Shimin and replied: "This kind of house was originally thought of by the minister, but with the existing material conditions, it cannot be built. Because the viscosity between the masonry and the loess is not strong and cannot be firm, once there is more than one layer, the upper one is easy to collapse. But that's no longer the case. Now with cement, the masonry can be firmly integrated through cement. Of course, cement alone is still not enough, it is still not strong enough. Therefore, Weichen thinks that when steel is used as the skeleton, the cement mixed aggregate is poured into concrete to form reinforced concrete, and this is built, with cement masonry as the frame and steel as the bone inside, so that it is very strong. Such a house can even be built as high as five or six floors! Your Majesty, please think about it, fertile land is like gold, if you have this kind of house, then occupy the same area of land, but you can live several times or even dozens of times the number of people, so that the crowd is concentrated, and the land is saved. A single building like this can save a limited amount of land, but if this kind of house can be implemented, how much fertile land will be saved in the world?! ”

Li Shimin didn't say anything, just lowered his head and looked at those patterns again. After a pause, he said again: "Let's go, go to the study and go." Wang De, summoned the general as a supervisor and the right school to order to go to the imperial study. ”

Xia Hongsheng went to the imperial study with Li Shimin, and without waiting for a while, the two of them went to the imperial study together.

After the two met Li Shimin, Li Shimin picked up those drawings, asked Wang De to hand them to the two of them, and then said: "Look at these drawings, can this kind of house be built?" ”

The two hurriedly took the drawings and looked at them carefully.

The two discussed in a whisper, and argued for a long time before putting down the drawings, and then bowed down to Li Shimin and said, "Back to Your Majesty, this kind of house can't be built." If it were built in this way, it would have collapsed. If the masonry is built too high, it will be unstable and unattainable! ”

"Your Majesty, I will be a prisoner who does not know the materials of Weichen, so I naturally think that this kind of house cannot be built." Xia Hongsheng said to Li Shimin: "Wechen has already calculated, if the wall is built with cement wrapped in masonry, steel is used as the skeleton, and concrete is poured into it, there are these three things, this building can be built, and it is extremely strong, countless times stronger than the existing houses. Because the minister can't make a very good condensate, so the minister calculates, as long as it doesn't exceed the three layers, there is no problem. ”

Li Shimin thought for a while and said: "Although those materials of Xia Qing are quite magical, after all, this is something that no one has ever seen, even I, I dare not let you build this kind of house in the military academy without knowing it." ”

"Your Majesty, Wechen is willing to pay for it himself, find a vacant land, and build such a house for testing. If it does, it means that this kind of house can be built. If it doesn't work, it's just that Weichen himself acted willfully and lost some money. Xia Hongsheng said to Li Shimin: "Please also ask Your Majesty to allow your ministers to experiment with this kind of house." ”

This is Xia Hongsheng's real purpose. Originally, Xia Hongsheng couldn't guarantee that he would really be able to build this kind of building-like structure. After all, cement is there, but what about steel and concrete? After all, the steelmaking method of the Tang Dynasty is very mature, and only needs to make some improvements, although it is far from later generations, but it is already very advanced in this time period, and the quality can still be guaranteed. It is mainly concrete, and the only concrete that can be made under the existing conditions is the simplest concrete, and the effect is not yet known, so it must be tested first.

So if Li Lao Er can agree to do this experiment today, Xia Hongsheng's goal has been achieved. In this way, even if someone impeaches Xia Hongsheng for overstepping the system at that time, at least Li Shimin knows the situation and will not do anything to him.

Li Shimin didn't speak, just thought about it, and then said to Xia Hongsheng: "It's okay, you can try it yourself first." After all, such houses have never existed, and no one knows what they are. ”

With Li Shimin's approval, Xia Hongsheng's purpose of coming here today has been achieved. Li Shimin asked the two people who were the prisoners to step back, and left Xia Hongsheng behind.

"I went to see it myself yesterday, and I thought a lot about it when I came back. The military academy is of great significance to my Datang, and this matter must be done well. Li Shimin said to Xia Hongsheng: "Since the military academy is something you think about, it is impossible for others to know more than you, so you will preside over the construction of the military academy, and I will give convenience to all needs." I hope you don't live up to my high hopes. ”

"Wechen obeys! Please rest assured, Your Majesty! Xia Hongsheng bowed and said.

Li Shimin nodded and continued: "Also, if the military academy is completed, it will definitely be the pivotal force of the Tang Dynasty army from now on, and I need to firmly control it. It's good that you said before that I should be the head of the military academy. It's just that I'm still worried, the power of soldiers and horses, after all, is the important weapon of the country, and relying on the ideological and political education of military academies alone may not be enough to restrain people's hearts. ”

"This ...... Your Majesty, with all due respect, the minister feels that His Majesty is thinking a little too far. Before the military academy was established, His Majesty had thought so far away, there was no perfect way in the world, how could His Majesty come up with all the possible countermeasures one by one before the incident happened? Xia Hongsheng comforted Li Shimin: "Things have to come step by step, the first step is to establish the military academy, as for how to effectively control it, that is the second step to consider." However, since His Majesty asked, the Weichen did have an idea, but it was immature, and he couldn't really do it now. But in the long run, it can definitely be used as a direction to work towards. ”

"Oh?" Li Shimin's eyes suddenly lit up: "Speak!" ”

"Iron battalions, flowing soldiers!" Xia Hongsheng looked at Li Shimin and said word by word.

Li Shimin's eyes froze, and he stared at Xia Hongsheng.

"The battalion, equipment, and number of the army are fixed, but the people inside are replaced every few years. Those who were replaced were either transferred to camps elsewhere or discharged from the army. Xia Hongsheng explained: "In this way, the generals can no longer support their own troops. (To be continued......)