Han Sheng didn't agree, nor did he say no, he just said that he would think about it.

Liu Yu was not reluctant. The two chatted for a while, and Liu Yu was about to say goodbye and leave.

It was still early, and there was still some time before lunch, so Liu Yu did not go home directly, but walked across the street on the way to the palace. The commander of the Imperial Forest Army, the dignified forward general, walked on the road and no one opened the way, but when they saw a team of Imperial Guards with the women's army, most passers-by still chose to take a detour.

The streets did not become depressed due to the national mourning, and the people lived in peace, clothing, food, shelter and transportation, and the people living in Chang'an City depended on the market to a large extent. Passing by a jewelry stall on the street, Liu Yue saw that the hairpins were very beautiful and not expensive, so he bought a few, one for his own woman, and he was going to give one to Qi'er. Qi'er is not yet an adult and has no monthly money, and many times she runs out of the palace to play and encounters her favorite objects, but she can't buy them.

Thinking of Qi'er, Liu Yu couldn't help but think of her mother Lin Meiren, and her good friend Wu Shuo. One, Liu Yu has an indescribable emotion in his heart, like a mother, more like a relative. And Wu Shuo's whole stupid and dull little Lori is not as smart and cute as Qi'er, and she is not as amorous as Qi'er.

When he arrived at the palace, Liu Yu went directly to Wu You's astronomical institute. There are not many people available around him now, Liu Yu tries his best to win over all trustworthy allies, and the national teacher Wu You is one.

Wu You will not be so sad because of the emperor's Bintian, his elixirs of immortality, even the old emperor knows that the Dao is a fake and shoddy product. Saying that he is a national teacher is just a false position, and his status in the court is similar to that of Qin Tianjian's supervisor, and others will only say hello and not pay attention to it when they see it.

The door was as open as ever. Liu Yu walked in. Wu You is still tinkering with his stuff. Very attentive. It seems that he doesn't realize that the palace is mourning, but he has changed into a white filial piety dress. Liu Yu did not see Wu Shuo and Qi'er.

"Aren't you supposed to be busy?" Wu You raised his head and looked at Liu Yu, "Do you still have time to come and hang out?" ”

"Come and see, where's your great-granddaughter?"

Wu You lowered his head and continued to tinker: "I've been here these days guarding the little old man, Qi'er came to look for it yesterday, and then disappeared." It's a mess in the palace, and you also tell the Imperial Forest Army not to let them run out of the palace again. ”

The two of them seemed to be chatting casually. Everyone seemed to have nothing to do, and Liu Yu also walked around in Wu You's new astronomy. Seeing that there was a formed gun on the table and was about to take it, Wu You reminded: "Oh, it was sent by the Ministry of Industry today, why don't you try it?" ”

Liu Yu didn't want to try this time bomb as a gun, the explosion was not a joke, and the amount of gunpowder of those people in the Ministry of Industry was also uncertain. However, the lines of this gun are also beautiful. The triggers are also well designed, and the bolt is added under Liu Yu's prompting. The bullet was not designed and formed, and it was added in vain, it was nothing more than the people from the Ministry of Industry and the Ministry of War who took it to fool him after molding it according to his design.

"It's better to go back and find someone to try, I don't want to risk my life."

Liu Yu lifted the gun and looked at it, but he didn't know if it was filled with gunpowder, so he put it back on the table directly, and specially pointed the muzzle of the gun against the wall to avoid accidents.

"No, it's still too dangerous to stay here. I'll find someone to send me back to the Ministry of Works. Liu Yue was afraid that Qi'er and Wu Shuo, the two troublemakers, would come over and pick them up and play casually, and for fear that something would happen, he walked to the door and prepared to let the guards send them back to the Ministry of Works.

"Commander Liu, what is this?" Liu Yu didn't have too many shelves on weekdays, and he got along well with the guards accompanying the Imperial Forest Army, and the guards also surrounded him during the rest time.

"Dangerous objects, dodge, if something happens, the commander can only be responsible for funeral expenses. My wife remarried with her children, don't rely on me. ”

Lian Hu had been to the Ministry of Industry with Liu Yu before, and had seen the people from the Ministry of Industry test-firing, and at this time he was eager to try: "Commander Liu, can your subordinates try it?" ”

"Want to try? Okay, how do you know how to get it? Liu Yu explained before handing the gun to Lian Husheng, emphasizing the problem of the muzzle and pulling the trigger, and said later, "This thing also has recoil, that is, a backward force, the arm must be held steady, and the muzzle is crooked and prone to accidents." ”

Lian Husheng nodded, happily tilted the muzzle of the gun up about forty-five degrees, and pointed at a tree not far away, Liu Yu specially dodged everyone, hooked it, and did not move. Either it was dumb or it was not loaded with ammunition at all.

Wu You walked out at this time, took a wooden box and said, "This is sent by the people from the Ministry of Industry, you see." ”

Liu Yue opened the wooden box, inside was a molded "bullet", Liu Yue knew that this thing was quite dangerous in this year, and the impact force was not well controlled, and it was easy to shoot the warhead, but this bullet was obviously prepared to be ignited with flint rather than by impact force.

The casting process of the copper bullet is very good, and Liu Yu even feels that the design of this bullet is more perfect than the design of the gun.

"Take one and try it." Liu Yu asked Lian Husheng to open the bolt, but it was empty, and Liu Yu loaded a bullet into it. Then he told the crowd to retreat far away.

Lian Husheng still casually aimed at a tree not far away. A flick of a finger makes a "Bang!" There was a bang on the ground, and a spark could still be seen in the sunlight, and three or two birds flew off the tree, and a few leaves were dropped with it. And even because of his inadequate preparation, his arms were numb from the shock.

"It's too powerful, and it's not accurate." Liu Yu commented.

The power of the musket is enough, even too large, and the shooting distance is estimated to reach one or two hundred meters, which is longer than the range of ordinary bows and arrows, and the accuracy is very average, but this thing is quick to get started, and it can be made without being too fine, and the practice time is much shorter than that of bows and arrows. Liu Yuxin said that he should be able to consider the problem of rifling when he turned around, but he only knew the principle of rifling, and did not know how to make rifling in the iron pipe.

Liu Yu handed over such a complicated matter to the people of the Ministry of Industry, and he didn't bother to leave the palace again, so he asked the guards to call the person in charge of the design of the musket, explained the principle of rifling, and repeatedly emphasized the sealing of the barrel. The bolt is not rammed for the sake of good looks or easy reloading.

"Just make the bullets spin?" There is a person named Zhou Lin who seems to understand, he is very young, it is rare that Liu Yu has explained many times, and he is the only one who understands.

"That's what it means." Liu Yuxin said that he still hadn't explained the point, which made these craftsmen scratch their heads.

Zhou Lin seemed to be very confident and said, "That's easy to do." ”

Liu Yu hadn't paid attention to him before, and after careful questioning, he learned that before he joined the army, he was at home to make bamboo firecrackers and go up the mountain to hunt, and his own cultural level was not high, but he only knew the level of a few words, and his ancestors had been striking iron for generations, and he was later recruited to the errand of building weapons in the military department.

"What you want is cast iron, not iron, and the high-temperature furnace fire is indispensable, and the best iron can be pure, and if you do this errand well, you will be rewarded."

Liu Yu patted Zhou Lin's shoulder to show encouragement, and it was rare to be appreciated by the commander of the Imperial Forest Army, Zhou Lin was very excited, patting his chest and saying that he could complete it. Liu Yuxin said that the development of this gun has been hundreds of years, and he also knows the appearance of the most "finished product" in the road, and it is strange that it can be designed so easily, and he does not have much hope, there is such a semi-finished product, which can already be mass-produced, after all, this musket can be filled with gunpowder much faster than the front-loaded musket, and the range is still long, and it may have a miraculous effect on the battlefield.

There are many things, and Liu Yu only has so much time to mention them. Seeing off the people from the Ministry of Industry, Liu Yu was about to leave, when he saw Qi'er and Wu Shuo running back happily, Qi'er couldn't wait to talk when she saw Liu Yu: "Brother Liu, Qi'er and her mother are about to move." (To be continued......)