Cheng Chumo saw everything and went back to his so-called office. He had to write down all the rules on paper and design some firearms blueprints.
He only planned to make explosives, grenades, and simple cannons. After all, other things could not be achieved at the current level of productivity. Originally, he had planned to make a simple rocket, but in the end, he could not imagine what the battlefield would be like if the balance of the rocket could not be maintained. Would they return to their own camp once they launched? Just thinking about it was a tragedy.
The cannon he designed was similar to the crouching tiger cannon of the Sun Moon Dynasty. It was a double-layered structure, with the inner layer made of copper and the outer layer made of iron. In that case, his lifespan would be a little longer. Originally, he had planned to make pure copper, but then he thought that the cost was too high, and he was afraid that Li Shimin would not agree. But with the Great Tang's smelting standards, pure iron was either too brittle or too soft, and it could explode before it could even be fired.
As for grenades, they were made from small clay jars filled with gunpowder and small clay shards. The small clay shards were used to increase the killing radius. Explosive bags were the least skilled. They were just wrapped in a tarpaulin and a large amount of gunpowder. In the end, he thought of using a fixed method to make the cannon a base fire. To put it bluntly, a bamboo tube was used to store a certain amount of gunpowder. When the time came, the gunpowder in the bamboo tube would be poured into the cannon barrel. There was no need to re-evaluate how much gunpowder was appropriate. There was no time for that on the battlefield.
Of course, he also designed a series of communication fireworks. For example, if copper powder was added, it would be green. If iron powder was added, it would be red. If tin powder was added, it would be white. If nothing was added, it would be yellow. These were all common metals that could be obtained easily. It was enough to transmit ordinary information.
Cheng Chumo stretched his back and went to the courtyard. He nodded when he saw that everyone was in good order. Then, he took out the rules he had written and pasted them on the most conspicuous door.
"Wang Er, come here for a moment. Now, I'm going to the Ministry of Works to see if one of my firearms can be manufactured. Here were the blueprints of the other two firearms. Take a good look and ponder over it. When the time came, he would ask the people below to do as he said.”After saying that, Cheng Chumo went out to the Ministry of Works.”
Cheng Chumo came to the Ministry of Works. The current Minister of Works was the famous Empress Wu, Wu Zetian's father, Wu Shi. In fact, Cheng Chumo had wanted to meet this historical celebrity for a long time. Let's see what the person who gave birth to Wu Zetian looks like. When Cheng Chumo saw Wu Zetian's father, he realized that he was just an ordinary person. He was a little chubby, had a pale face, and had a face full of orange peel. His eyes were cloudy.
"Hello, Minister Wu. I'm here today to show you. Can you make this blueprint of mine?”As he spoke, Cheng Chumo took out the blueprint of the cannon.
Samurai took the blueprint and looked at it. "Fuma, I don't think it's a big problem, but we need time.”
"How much time does Minister think it will take? After all, I need it for my work.”Cheng Chumo asked.
"The structure of your blueprint is actually very simple. The most important thing is that we have to straighten this tube. This is more difficult. The first tube will take about a month. If I may ask, this is your new firearm. What's the use of a tube?”Wu Shi replied.
"This lowly official has his own uses. By the way, did the martial arts university student have three daughters?”
"That's right, I do have three daughters. Why are you asking this?"
"It's fine, martial arts university man. I'm just asking. "Since there's nothing else, I'll take my leave first. Goodbye, Martial Arts University Master." Cheng Chumo turned around and left.
"How ridiculous. How many daughters do I have? Could it be that he married the princess and has designs on my daughter? However, this was also a good thing. After all, the Cheng family was now very popular and like the sun at noon. Hmm, it seems that I have to invite him to my house next time and see what he thinks.”Samurai thought. "I can have this."
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