When you cross the threshold of this artillery superintendent, you will come to the main hall. Wang Xuance found that his uncle was also here, so he immediately bowed down and gave a salute. So after everyone exchanged courtesy, they were given up by Li Ji and on the futon next to the tea table. As the attendants poured the plain tea cup in front of them with freshly brewed tea soup. Seeing this, Wang Xuan's strategy asked in surprise: "Uncle Shi, why are you here?" ”

"Why can't I be here!" Li Chunfeng asked with joy on his face, and his words made everyone laugh.

Because Li Chunfeng believes in Taoism, he naturally has a lot of research on pills; And although this Li Jin is not interested in Taoism, and he is not very interested in pills, he has a lot of experience in this black powder.

Although the two have different research directions, they trace back to the source and come from the same vein, so they often contact and communicate. Today, just when he was idle, Li Chunfeng came to this artillery supervisor again. Unexpectedly, he met Wang Xuance's visit here.

When I figured out that Uncle Shi and Li Ji had a very good relationship. I saw that this Li Ji followed Wang Xuance's rhetorical question just now, and asked him the same question: "I don't know what Wang Changshi is talking about to me, the artillery supervisor?" ”

"With your demonstration of this firecracker last time, you are quite interested in this black powder, and this time I came here to have a deeper understanding, to learn a little, to see how this gunpowder is proportioned? How are firecrackers made? I hope that Li Jianzheng can give him advice," Wang Xuance replied to him modestly.

"I really don't dare to give teaching, but I can explain the process to you." Li Zhen also replied politely.

After hearing Wang Xuance's intention, Li Chunfeng was also immediately relieved that this nephew could have such a studious mentality; In addition, Li Jian had agreed to explain, so he also said casually: "In this case, let's ask Li Jianzheng for advice?" ”

"Mr. Li, don't make this joke, you are better at making black powder than me," Li Zhen said to Li Chunfeng.

This thoughtful sentence immediately made everyone laugh.

At this time, Zhou Zeng, the moment he stepped into the gate of this artillery prison, he had already developed a strong interest in this place; When he heard that this Li Jin could explain this black powder to them in detail, he immediately looked at this artillery supervisor carefully.

I saw that he was dressed in coarse cloth clothes, and it was not silk and satin, it was just an ordinary normal dress. Deep eyes, like a small pit in the hollow. A pair of high and bulging cheekbones on the lean face are not only not dignified, but they are a bit ugly. But there is a bit of integrity and intelligence in this ugliness.

With Li Jin's guidance, everyone came to the firecracker making workshop. I saw the craftsman who made the lead and put the black powder into the thin paper like a cicada's wings, not only rubbing it carefully, but also moving very slowly and evenly.

The craftsmen who make black powder put charcoal, saltpeter, and sulfur on top of the stone mill in a certain proportion and crush them finely. With the appearance of the fine powder, this black powder was born.

The craftsman who makes firecrackers first uses a drill to open the joints of the bamboo, and then drills a small hole in the side to place the lead. Then the black powder was carefully put in, and then compacted. Of course, this is just the process of making a normal firecracker......

And the "abnormal" firecrackers are wrapped in mulberry paper. This kind of firecracker was also developed by Li Zhen after many improvements and experiments. In the course of the experiment, he also found that this production method, under the same amount of filling, is much more powerful than firecrackers filled with bamboo. However, the only drawback is that the leads need to be placed in advance, so it is very inconvenient to store.

After Li Jin gave a detailed explanation of his gunpowder workshop, he saw this smug Zhou Zeng, so he casually picked up a row of bamboo tubes beside him and asked him, "What is this?" ”

This is called "continuous EOD". Because multiple firecrackers are bundled together, they are very powerful. Each of these bamboo tubes is figured out, and their relationship is through the middle lead; And through the length of the lead, the interval between explosions can be controlled, so it is named continuous detonation. Li Jin patiently explained to him.

After his explanation, Li Zhen took the initiative to explain to them the "mother and son explosion", "long barrel explosion", "open stone explosion" and other newly developed gunpowder varieties. This scene is really dazzling.

In fact, looking at the various types of gunpowder developed by Li Jin, it is precisely because of the different amounts of charge that they have different powers; At the same time, in order to ensure the safety of the fireworks, the leads are made very long.

Although these types of gunpowder are very crude and rudimentary, they are only a small step in the history of gunpowder use. However, looking at the history of the invention and creation of any human artifact, it has to be said that this step taken by Li Ji is a very big step.

Please remember that this step is a cattle man in the early years of the Tang Dynasty, Li Jin came out; This step is not only worthy of our pride, but also worthy of our pride; Because he was the first to put gunpowder in real use.

After listening to Li Jin's explanation, everyone also has a certain understanding of the application of this ancient invention. Of course, because of this exchange, the two sides understand each other, and coupled with Li Chunfeng's relationship, the relationship between them has naturally improved.

At the time of separation, Li Chunfeng said earnestly to Wang Xuance at the door of the artillery supervisor: "These things must be mastered well, only by continuous learning and mastery can we help you save the day at a certain time and place in the future!" After saying that, he drifted away.

Facing the uncle who was playing dumb riddles again, the three of them were stunned at the door. Although Wang Xuance and others have never realized the meaning of Li Chunfeng's words today, two years later, they have deeply experienced Uncle Shi's intentions......

After this half-day observation, they naturally understood that the production and research and development of this black powder could not be learned overnight. Although Wang Xuance and Chen Maocai were very interested, they didn't pay any more attention.

However, this incident has deeply attracted the attention and energy of another person, he is Zhou Zeng. Don't look at his usual big grin, but he has a different idea on this matter.

The wind and the beautiful sun are at the right time, and the flowers bloom in May.

These days, whenever Chen Maocai goes to look for Zhou Zeng's game, he always can't find him. After some inquiry, I heard the doorman who guarded the door say: "Captain Zhou, during this time, I always leave early and return late, and I don't know where I went, but every time I come back, I am always discouraged."

These words made Chen Maocai very strange, what the hell did this guy do......

If you want to know what you did this week, check out the next ......

Li Chunfeng: A cattle man in the Zhenguan period, just like a modern person who traveled to the Tang Dynasty, not only knows things like a god, but also knows the future. The book "Pushing Back Pictures" co-authored with Yuan Tiangang is the first strange book in China......

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