Li Chengqian's idea of steel-clad copper was simply whimsical to the craftsmen of the Research Bureau, but at that time, considering his status as the crown prince, these craftsmen did not dare to refuse, so they could only agree to it.

But it was easier said than done, and when they returned to the workshop, the craftsmen looked at the large pile of copper and steel pipes sent by the supervisor, and they were all a little restrained.

Because whether it is copper-clad steel or steel-clad copper, in later generations, it was actually achieved by a press, and it was a plane.

But in Datang, it is impossible to use such a method, one is because the pressure of the press is not enough, and the other is that there are two pipes, and the existing press cannot be pressed at all.

In the meantime, some people also thought about using glue and something like glue to glue together, but in the end they found that it was not realistic at all, not to mention that the vibration when the cannon was fired made all the glue useless, and the two pipes were not tightly combined caused an explosion accident.

Therefore, the method of gluing was rejected, and the research work was paralyzed.

But the wisdom of the working people is infinite, and just when everyone has nothing to do, a craftsman's brain turns somehow, and he actually thinks of a strange way - using gunpowder.

Since gunpowder can blow up the barrel, it means that the pressure of the chamber is too large, which exceeds the bearing capacity of the barrel.

But what if you bury the barrel in the earth? Can it still explode?

The force of the explosion is also a type of pressure, and according to the theory of relativity, the force is reciprocal, so what happens when the barrel is buried in the soil and more gunpowder is added to the barrel at the same time?

The craftsmen of the Tang Dynasty have no theoretical knowledge, but they can figure out some local methods and stupid principles.

In this way, the blasting turned into explosive pressure, and the craftsmen who dared to think and dare to do immediately took action, buried the two pipes that were set together vertically into the inside, and then put the gunpowder ...... in it, and then, the first cannon barrel made by blasting and pressing in Datang appeared like this.

Li Chengqian listened to Tang Shanzhi's explanation, and looked at the cannon barrel brought by the craftsmen with tears and laughter, wanting to complain about something but not knowing how to speak.

"What's the matter, the conditions that Your Highness promised me should be fulfilled, right?" Tang Shanzhi smiled weirdly, and said with the strength of the wine just now.

"Have you tried it? How far can you hit? Li Chengqian glared at Xiao Tang noncommittally, and asked Zhengse.

"Forty-five degrees, more than two thousand steps." Xiao Tang proudly patted his fragile chest and swore an oath.

Two thousand steps? This has far exceeded Li Chengqian's expectations, and Comrade Xiao Li did not show a smile on his face until this time: "Yes, really good, go back and give a bonus of 200 yuan to the craftsman who thought of a way, and the rest of the participating craftsmen will each be rewarded with 10 yuan." ”

"What? Two hundred? Don Jr.'s pride froze on his face, and his mouth opened at an incredible angle.

"What's wrong with two hundred guan, if someone can research a cannon steel alloy for Lao Tzu, Lao Tzu will give him two thousand guan, twenty thousand guan will do!" Li Chengqian was disdainful of Xiao Tang's surprise, and rolled his eyes and said.

"No, that's two hundred yuan, just one shot to give so much money?" Tang Shanzhi still couldn't understand Li Chengqian's thoughts.

In his opinion, the money was too much, and the craftsman was likely to take the money and disappear, and never to be a craftsman again.

But Li Chengqian's opinion was different from his, and after hearing this, his expression was correct, and he said in a deep voice: "It's not worth a shot, what is valuable is how to put this gun." If it weren't for the method he came up with, now you can only dream of marrying a wife, if it weren't for the method he came up with, our cannon would only be able to shoot 700 steps, and now you still think this cannon is worthless? ”

"No, then you can't give so much, you give so much money, who continues to be a craftsman, don't you run away immediately after the money is in hand?" Tang Shanzhi said with a white face, no matter what, he couldn't understand why Li Chengqian was so generous.

"If you run, you will run, you can only give the money, and you don't have to worry about anything else." This time, Li Chengqian was not discussing, and there was no doubt in his tone.

If he wants to buy horse bones, he must come up with a large price, and if there is no heavy reward, how can he come to the horseman!

"Yes, you got the money back, you said to give it, then give it, I'm too lazy to worry about it." Tang Shan saw that he couldn't change Li Chengqian, so he pursed his lips and complained.

"Dare to send the money down quickly, Lao Tzu still has something to do, go first, don't forget to send these steel-ladle copper barrels to the general supervisor when you turn back, and tell them how to make them. You're engaged in research, not production, really! Don't do your job every day! Regarding Tang Shanzhi's complaints, Li Chengqian didn't seem to hear them, and he told some things and left with Yang Yuxin and them as quickly as possible.

And it wasn't until the sound of the horse's hooves that he left gradually disappeared that Tang Shanzhi suddenly got up from the chair and slapped his head with a 'snap': "Damn, I forgot to ask this guy to help me tell the old man about marriage!" ”

……

"Whew, I'm finally running out, slow down." Compared with Tang Shanzhi's remorse, Li Chengqian was relaxed, and after leaving the scope of the research agency's workshop, he slowly slowed down his horse.

"Your Highness, where are we going in a moment?" Yang Yuxin and the others had been following Li Chengqian, and when they saw that his speed had slowed down, they rushed up and asked.

"Where else can I go, of course I'm back to the palace, haven't you slept enough on the floor?" Li Chengqian was in a good mood, and joked with Yang Yuxin and a few of them.

Yang Yuxin didn't care about this kind of joke, just hesitated, and then asked carefully: "But, but weren't we kicked out?" ”

"What are you afraid of when you drive it out, we won't go back to the East Palace." Li Chengqian waved his hand absently, indicating that Yang Yuxin didn't have to be so careful.

Although the position of the prince is gone, but the person is also relaxed, and he can no longer use it to disguise himself as another self, although he is a little lost in his heart, but compared with the current freedom, it is gone.

Thinking about the fact that when he was in the palace, he had to go back to the palace on time every day, and he had to behave in a measured manner when he ate and spoke, Li Chengqian felt that it seemed good now.

Even Li Chengqian felt that it was a good thing for him to lose the position of the crown prince this time, and he could take this opportunity to test his former subordinates to see which people were really loyal to him and which ones were perfunctory.

Thinking of messy things in his mind, Li Chengqian took Yang Yuxin and a few of them back to the city. But before he had gone far, he was startled by a scream, and when he looked up, he saw only three vague shadows disappearing into the distance on the street corner.

"What's going on? What happened? With a keen sixth sense, Li Chengqian felt that the three shadows that were faster than rabbits should be related to him.

"It's the son of the Wang family, I don't know why I ran away immediately after seeing His Highness." Xiaobai's responsibility is to be a bodyguard, so he naturally pays attention to the movements around him at all times, and Li Chengqian replied as soon as he asked her.

"People from the Wang family? What did the Wang family see me running? It's weird! Scratching the back of his head suspiciously, Li Chengqian muttered.

"Minister, minister doesn't know." Xiaobai looked at Li Chengqian, who was pretending to be confused, and the corners of his mouth twitched.

At present, even fools know this situation, and the few who ran away are simply treating Li Chengqian as a plague god, and they don't want to have any contact with him at all.

The lessons of the Lu family's past are there, the two guys with broken legs have been walking around the city for a whole day, if anyone dares to provoke him at this time, it is purely looking for death.

Li Chengqian saw that Xiaobai didn't poke him, and habitually shrugged his shoulders: "If you don't know, forget it, let's go on." ”

In any case, Comrade Xiao Li's wish to be a young man has finally come true, in the huge Chang'an City, as long as the young master with a head and face sees him, he will immediately fly away like a ghost.

Ghosts hate people, this word is the best portrayal of Li Chengqian, and even once Li Chengqian saw with his own eyes that a certain young man took the initiative to lie down and foam at the mouth and pretend to be dead when there was no way to escape.

Seeing the behavior of the gentlemen who were full of Chang'an Huang in the past, Li Chengqian actually went in and took a turn when he passed by the East Market, and only after stirring up the East Market did he laugh and urge the horse to leave.

For someone's bad taste, Yang Yuxin, Xiaobai and others really couldn't stand it, and their pretty faces were flushed behind someone, but someone didn't seem to see it at all, and they were still happy to swagger around, scared Chang'an's chickens and dogs jumping over the wall.

……

Taiji Palace, Liangyi Palace, His Majesty Li Er's study.

"Father, the son is back!" Li Chengqian, who had made enough fuss outside, was like a good baby, standing in front of Lao Li honestly.

"You still know to come back? Do you know that your queen mother cried all night the night before! His Majesty Li Er glared at his son angrily.

In general, Lao Li is still ashamed of abolishing the position of Prince Li Chengqian, after all, he is not wrong this time, he is completely careless, and he was cheated by Lao Li, who is a father.

And after pit his son, Lao Li was not so comfortable in his heart, knowing that Li Chengqian had left the East Palace without anything, he also sent a shadow guard to follow, for fear that something would happen to him.

But then there was another farce of the Lu family, which made Lao Li a little embarrassed.

No matter what Li Chengqian says, he is also his second son, representing his old Li's face.

But this kid would go to the X generation of a family to 'take the blame', which is like putting Lao Li's face under someone else's feet for people to step on.

Therefore, His Majesty Li Er's mood at this time was extremely complicated, and the guilt and annoyance made him not know how to deal with Li Chengqian for a while.

But fortunately, Li Chengqian has a good habit of this product, that is, he will change it when he knows that he is wrong, and even if he is right, he will change it, facing the old man's glaring eyes, he lowered his head and shrunk his neck: "Father, it is the son who makes you and the queen mother worry, and the son is at fault." ”nt

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