"What did I say to me?" I glared back at Liushuang and took her hand, "Don't move, don't you understand what I'm saying?" You came here to help, but I begged your master for a long time before he agreed to let you come and give some advice, but it is not for you to come to a place like this where there will be danger at any time to do things. If something happens to you, how should I explain it to your master, how can I explain it to your brother? I raised my face, stared at her and said solemnly. Flowing Frost's original surprise gradually dissipated, but there were red clouds on his face, as if he was shy, and he was actually avoiding my gaze, huh? What is this girl doing?

But for the sake of her not refuting after being taught by me, let her go for the time being. After a while, the flush on Liushuang's face gradually dissipated, and he slowly withdrew his hand from my hand, and after softly saying thank you, Fang Zhengse said: "Childe, I have a way to make these gunpowder more powerful." Right now, I'm trying to give these masters a test. ”

"Huh?" Hearing the words of Flowing Frost, I couldn't help but be stunned, could it be that Flowing Frost knows how to make nitroglycerin? But nitroglycerin has nothing to do with the explosives she fiddles with?

"I have experimented with these masters many times, and the combustion of gunpowder is always very insufficient, and I have tested it many times, and I found that the more rounded the gunpowder particles are, the more moderate the particle size, the more fully it burns, that is, its power will be greater." As soon as Liushuang got down to business, the brilliance in his eyes was as if he had smeared a rainbow on the sky, and it was amazingly bright.

Flowing Frost picked up a small piece of gunpowder from the wooden barrel filled with gunpowder grains, which was smaller than a grain of rice, and handed it to me: "This size of gunpowder particles is the most suitable, and then put the gunpowder particles of this size in a large wooden barrel, press it to this shelf, and let it keep rolling, it will take about a day, so that they can have no edges and corners at all, so that the burning power can be greater, and they can burn almost completely." ”

"Really?" When I heard the words of Flowing Frost, I couldn't help but get excited, looking at the black gunpowder particles in my palm, and then at Flowing Frost, who was still standing in front of me, still looking excited. "Thank you!" I thanked Frost very sincerely, but Frost didn't seem to react, or didn't hear clearly, and her pretty eyes looked at me with questions.

"I mean, thank you, this is very important to our Martial Arts Research Institute, as well as our soldiers in Datang." I repeat what I just said. Frost looked away a little embarrassed, but I could tell from her expression that she must be in a good mood.

---------------------------------------------------- "In two days, we will recreate a new grenade with this granulated gunpowder, and then we can test the power of this gunpowder." I watched as the barrel had been sifted and placed on a wooden rack in a newly built house on the bank of the river, and the gunpowder that was used to roll the barrel at an even speed by the power of the water was pressed, and smiled at the drifting frost on the side.

"Can I come and see?" Flowing Frost nodded, and answered casually. "Absolutely." I looked back at Driftfrost and chuckled. Does this girl know what politeness is in front of me?

Liushuang was stunned for a moment, glanced back at me, and realized what he said, and his pink and white face was slightly red: "I don't need your consent, I'm going to come too!" With that as she said that, Frost sped off towards the way she came, but it gave me the impression that she was running away.

Zhong Hua on the side smiled very strangely, his two front teeth were exposed outside his lips, and he was very hateful. I glared at Zhong Hua: "What are you laughing at?" What's so ridiculous about not going about your business? Remember, two days later, not only me, but also His Majesty will come to inspect, don't hurry up and prepare to go, if something goes wrong then, be careful that I will take you to blame! ”

"Huh?!" Zhong Hua was taken aback by my naked threat, hurriedly threw his hand at me, and hurriedly ran to devote himself to his busy work.

Two days later, Uncle Li, dressed in disguise, as well as a group of senior generals of the Tang Dynasty military such as Li Jing, Li Ji, Uncle Cheng, Su Dingfang, Li Daozong, Yan Lide, and the head of the Ministry of Industry, quietly appeared at the shooting range of the Martial Arts Research Institute under the protection of a group of Qianniu guards led by the Wei Chi twins.

I was wearing chain mail inside, bright heavy armor outside, and a pure steel phoenix-winged helmet on my head, all bright and shining, and the eyes of Zhong Hua, who was wearing an official robe on the side, were dazzling, Zhong Hua squinted at me and said suspiciously: "My lord, why are you dressed like this?" What we are doing is an artillery exercise, not a combat exercise. ”

I patted the armor on my body and smiled at Zhong Hua: "As a military general, this official should naturally wear such a set to welcome His Majesty's visit." "I'm talking nonsense, actually, I'm more interested in the defensive power of this set of metal armor. I was a little shy about what it was used to prevent it, and I was embarrassed to tell Zhong Hua.

Zhong Hua shook his head helplessly, he didn't understand my inner thoughts, which was normal, but if I didn't dress like this today, I would be very insecure physically and mentally when I did the artillery bombardment test for a while.

Uncle Li saw me fully armed, and couldn't help laughing: "Virtuous son-in-law, why do you have the heart to wear this suit to greet us today, is it because you are afraid that your father-in-law Cheng will pat you on the shoulder?" "Uncle Li's ridicule embarrassed me, and it seems that Uncle Li's grudge is quite heavy.

No, my uncle didn't have a little shame, but leaned in front of me and said proudly: "Don't be afraid, the old man is here for official business, not to fold your little arms and legs." However, when you wear it like this, you have the momentum of a military general. Well, it's good, and he deserves to be the son-in-law of the old Cheng family. Let's go, lead the way, the old man has to take a good look at what tricks your son-in-law can play in the whole cannon battle. Hahaha......"

Seeing that the sarcasm had no effect on Uncle Cheng, Uncle Li couldn't help but curse angrily: "Old horseman! Then he led everyone to the shooting range of the Martial Arts Research Institute.

Uncle Lee and the other high-ranking military generals were sitting in front of the stout, long, hollow metal cylinders, studying this kind of weaponry that they had never seen before. Uncle Cheng fiddled with it very experienced, took his eyes to the center of the hollow barrel and glanced twice, nodded and said, "This thing is thicker than the old Cheng's cigarette pipe." Virtuous son-in-law, do you want to use this thing to pretend to be firecrackers and blow up people? ”

----------------------------------------------------I was watching the excitement on the sidelines when I heard Uncle Cheng's question, and I almost laughed out loud, but I can't make fun of this old rascal in public, otherwise, the end will be very bleak."

I stepped forward: "Father-in-law, this thing is not only used to blow up people, it is so powerful that it can also knock down the city wall, compared to the medicine bag used to open stones, no one needs to stuff the medicine bag under the city, and we can hit the enemy or the city wall for a mile or two as long as we stand in this place." "I carefully explained this new weapon to Uncle Cheng and the other senior generals: the mortar. It will be a new type of weapon with cross-era significance, its appearance, five or six hundred years earlier than the assault rifle used in the Song Dynasty, and more than a thousand years earlier than the mortars of later generations, its birth will sound the horn of the coming of the firearms age.

"You're saying you can use this thing to knock down the walls? And you don't need someone to send the gunpowder packs to the foot of the city walls in advance? Uncle Li Jing was the first to raise his own questions.

I nodded and smiled, "Exactly." Su Dingfang, who was on the side, squeezed forward to look at the barrel, and asked with some curiosity: "Why does the color of this tube seem to be different from the outside?" ”

"Oh, this barrel is a trial barrel of the latest test, the material used inside is steel, and the outside is wrapped in copper, so that the hardness of steel is combined with the toughness of copper to improve the durability of the barrel, but this new barrel is not very much." I patiently explained that there were not many of these new alloy barrels, and that in this artillery exercise, there were only five gunners with this barrel, and the others were all made of copper barrels.

These are all cannon barrels that the craftsmen of the Martial Arts Research Institute have worked hard to overcome all kinds of difficulties before they can be cast as a whole. These barrels are not thick and heavy, at least in my understanding of how thin the wall of the gasoline barrel is, and the barrel of the gun body we cast now is at least dozens of times the thickness of the wall tube of the gasoline barrel, the thickness is about half an inch, each barrel is about one meter and a half a year long, and weighs about two hundred and fifty catties to three hundred catties, at least it can ensure that each barrel can be reused hundreds of times?

I can't say the exact number, the main reason is that I haven't tested how long the life of this barrel is. How many times it can be used will blow up or the barrel will be damaged, it's not a question of what I can recognize. It depends on the lives and luck of those shells, although everyone's life is very precious, but I think that my own life is more precious than theirs, which is called individualism in the words of later generations?

(To be continued)