"Yan Shaojian, in fact, this seesaw has great knowledge in addition to playing." Gu Qing said hurriedly, "You see, this length is related to the stress, and this is called leverage."

"I naturally understand this!" Yan Liben said, "I have finished reading it now, so it's time to talk about the new firearm mechanism."

"Actually, there is another bookstore here." Gu Qing led Yan Liben to the small bookstore. Kong Yingda has just finished class.

Yan Liben hurriedly saluted: "I have seen the old master."

"Haha..." Kong Yingda smiled and was in a good mood, "You came to teach in this bookstore? There is Li Chunfeng and you."

"Actually, I am not here to teach." Yan Liben whispered, "Your Majesty asked me to come and discuss the new firearm with Gu Qing."

"So that's how it is." Kong Yingda knew in his heart, and had already understood Gu Qing's meaning, "This bookstore is very well done, you might as well read more."

"Yes!" Yan Liben bowed and said, before, he was just heard about Kong Yingda coming to the Bookstore to teach. Unexpectedly, he really saw the poem next to the Bookstore again, and couldn't help but recite, "Hide in the small building and become a united state, regardless of spring, summer, autumn and winter."

He thought to himself and said, "This sentence is a bit casual and free, and the words are very good, but it is always inappropriate to hang it in a place like a bookstore."

"I like it!" Gu Qing didn't care. I founded the bookstore. I spent money to build the bookstore and was also the teacher I dug up!

"Well." Yan Liben waved his sleeves, "Gu Qing, I have heard of your reputation more than once. When I became a student of Fang Xuanling, I knew you. I was talented but became a general, with wisdom but lazy food, and I never had a medical skill. A good boy is a person who wants money. You have bad habits and good abilities. You are right. You are just a weird person, a strange person."

"Actually, I'm quite confused." Gu Qing nodded and said, "Why are some people saying good things and belittle me! People, what a contradictory creature."

"I have seen you when His Highness the King of Wei got married." Yan Liben turned around and said, "I just glanced at it that day, and today I saw the true appearance of God, so how could such good skills fall into you like you."

“…”

I really want to beat him up, why do so many people say that? Yang Sheng? Where have you gone? I want to beat him up!

The strange desks in Yan Liben's reading studio said again, "You are pushing forward with the new firearms. Is this time I took me around and asked me to come to your bookstore to teach these children to be craftsmen?"

"I will not hide it from Yan Shaojian." Gu Qing said with a tribute, "I really want Yan Shaojian to come to the Bookstore to teach."

"You are the best friend of the King of Wei. Your daughter is married to the King of Wei. If you want me to teach the children, why bother with me? "Yan Liben said painstakingly, "You just say that you open a bookstore to benefit the students of the Tang Dynasty, but just for the little girl. Because His Highness the King of Wei agreed, that's right."

"Is this agreed?" Gu Qing was surprised. Where is the integrity? What about the character?

"But I have a rule!" Yan Liben continued, "The abilities of our Yan family have always been passed down to the direct line. I can teach the most basic things for children, but I won't teach too much after that."

As long as people are willing to come, things can be slowly polished in the future. If you don’t believe that you can’t find the skills of this master. The old saying goes: It’s better to have fun alone than to have fun. Thinking of Gu Qing, he nodded quickly, “That’s great.”

The wind in winter was very bitter, and Yan Liben said again, "Now we can talk about the new firearm."

"Yes." Gu Qing and Yan Liben came to the home and closed the door and were only two people left in the room.

Gu Qing said, "The explosives are detonated by burning the line of fire. This new firearm does not require the line of fire but triggers the detonation."

"What's the reason?" Yan Liben was puzzled.

Gu Qing also said, "This new firearm has a name called landmines. The difficulty lies in its triggering ability, because it will be detonated without the fire, and its triggering ability is the core."

"Your Majesty has told the county that he should not say too much to me." Yan Liben said, "If the county tells me about the complete method of mine manufacturing, I am afraid that I will..."

"I'm afraid it's just a head moving?"

"Yeah!" Yan Liben nodded embarrassedly, "The county just needs to tell the mechanism of laying this mine. It's good to say those who can't say those who can't say that the county can control it yourself."

Gu Qing thought in his mind that if he told him the complete method of manufacturing landmines, wouldn’t this guy be dead? He would kill people without blood. Forget it, he had no grudges from Yan Liben, and this guy had to agree to come to Shushe to teach. He thought to himself, "Actually, the method of making is difficult, and it is not simple. The materials include stone, pottery, and iron."

Gu Qing drew the mine's shell structure with charcoal strokes and handed it to Yan Liben, "This is the specific structure, but it must be hollow."

Yan Liben frowned and looked at the drawings for a long time before saying, "I understand, say goodbye."

"No!" Gu Qing bowed and gave it to him, "Young Master Yan, remember to come to teach when you have time! You will have a rest at the end of the month in the middle of every month!"

The mines designed are very simple iron box thunders. This kind of mine was first used in the Ming Dynasty. This mine was also the earliest mine prototype, including treading hair, tripping hair, pulling hair, and slashing hair. The cost is low and although it is not very lethal, it is enough to deal with the war horses on the grassland.

Gu Qing could not make the infantry thunders in later generations, anti-tank thunders. This simple iron box is actually not difficult. Watermelon-sized landmines are also very bulky. In fact, they can be optimized, but Gu Qing doesn't want to do this because he is lazy.

A few days after the mine matter was settled, Li Er thought that as long as Yan Liben made the machine and then let Gu Qing make a complete mine, he just heard Yan Liben go to the Shushe to teach, the corners of his eyes twitched!

How many people did Gu Qing want to teach in the bookstore? Let Yan Liben meet Gu Qing was like a sheep entering the tiger's mouth. Li Er gritted his teeth, "I'm careless!"

"Kong Yingda, who has a literary talent, was poached, and Li Chunfeng, who is famous, was also poached, and even Yan Liben was not let go!" Li Er was upset, "I will give him how many people Gu Qing wants! He can't dig any more!"

Wang Qin also smiled bitterly. Neither Kong Yingda nor Li Chunfeng had resigned from his post in the court, but he had time to go to the school to teach. His Majesty was just angry. This Gu Qing had a sharp-eyed boy and poached a few of his everyone, which made His Majesty anxious. These people were spent a lot of effort to stay in the court, and he gave him a lot of official positions.
Chapter completed!