The weapon tycoon who traveled to Daqin

As the visitors from the six countries dispersed, the Qin army had to return to Xianyang, take a rest, and then move to the battlefield.

The departure of the army cannot be completed in one day. Especially the establishment of the division-level staff allows them to start planning and marching routes. King Qin's guard also begins to go to Xianyang. Shangwen returns to Xianyang with him.

Just when the army was about to leave, a man came very unexpectedly. Zhang Liang came to see Shangwen in person. This surprised Shangwen.

"I wonder what happened to Mr. Zhang?" Shangwen asked.

"Oh. I dare to ask Master Qin. Is this army going to leave?" Zhang Liang asked.

"Yes." Naofumi replied simply.

"Oh, then Liang has something to say directly." Zhang Liang said.

"Speak frankly, it doesn't matter." Naofumi said in the same way as now.

"Liang is here to deliver a diplomatic document. I also ask Mr. Qin to forward it to the King of Qin." Zhang Liang said and took out a bundle of bamboo slips.

"Well, okay. I'll hand it over to King Qin right now." Shangwen said while holding the bamboo slips.

"Na Liang takes leave." Zhang Liang said and turned to leave.

"Wait a minute." Naofumi shouted. When Naofumi saw such a heavy bamboo slip, he felt it was really inconvenient. No wonder the ancients could describe one thing with just a few words. It was all because of the writing tools.

"Mr. Zhang, wait a moment." Naofumi said and ran into his tent. He took out two notebooks and pencils.

"I see that Mr. Zhang's writing tools are so inconvenient. This is just a small thought." Shangwen said.

Saying this, Shangwen handed it to Zhang Liang himself.

"This." Zhang Liang hesitated.

"It doesn't matter. Mr. Zhang is a literati. It is inevitable for literati to write and draw. These things can just make up for the inconvenience of writing." Shangwen said.

"What is this?" Zhang Liang asked again.

"Notebook and pencil. This is made of paper. The pencil uses graphite for easy writing." Naofumi said.

"Well, Liang has written about Mr. Qin here." Zhang Liang was not polite.

"Liang, take your leave now. Take your leave." Zhang Liang said, cupping his hands.

Shang Wen sent Zhang Liang away. Just as he was about to pack his things, Ying Yu snatched the bamboo slips from his hand.

"Ouch. The book flew out so quickly. Is the man named Zhang Liang the one delivering the letter?" Ying Yu opened the document and saw it with dissatisfaction.

"That's not the case." Naofumi rejected it without hesitation.

"What? South Korea is going to set up an embassy in Daqin. This vixen is coming too." Ying Yu shouted dissatisfied.

"This is diplomacy. It's no big deal, right?" Naofumi asked.

"What kind of diplomacy? I see, I see that this Korean princess has bad intentions. Seeing that my country, Great Qin, is strong and their South Korea is weak, she wants to make things worse. It's shameless. It's too shameless. This thing is not allowed. It is absolutely not allowed."

Ying Yu shouted loudly. As he spoke, Ying Yu casually drew his sword and chopped up the document that was still on the ground.

"Hey, stop. This is a diplomatic document." Naofumi stopped him loudly.

"I don't care what kind of paperwork he has. Anyway, there is no good person in Korea. His mind is full of power and conspiracy. I am doing it for your own good." Ying Yu said angrily.

"Sigh. Shang Wen looked at the documents chopped to pieces on the ground. It's too late to fix it now." Ying Yu retracted his sword arrogantly.

"Let's go. I've packed everything. I don't want to stay in this place for a moment." Ying Yu said and took Shang Wen's hand to the carriage. Shang Wen didn't want to leave, but Ying Yu forcefully dragged him into the carriage.

The carriage soon joined the convoy heading towards Xianyang Development.

The two people in the car were silent. Ying Yu was the first to ask. After all, she felt that the atmosphere was a bit dull. "Why don't you talk?" Ying Yu asked.

"What did you say?" Naofumi replied.

"Say something casually?" Ying Yu said.

"I don't know what to say or write about this?" Naofumi said.

"Damn idiot, stupid idiot, deaf idiot, mute idiot." Ying Yu cursed in a series of stupid words.

Ignoring Ying Yu, Shang Wen took out his notebook and took out a pencil and started sketching something. Shang Wen thought of excusing Ying Yu. If the King of Qin couldn't see the real thing, he would probably be unhappy. Thinking of this, Shang Wen felt that it was necessary to design a musket.

Because of the presence of mercury fulminate, passivate it using grease or paraffin. Passivation treatment is to increase its sensitivity and improve safety. But if it is completely passivated, then change the flint to a percussion type.

Muskets are meaningless. Therefore, there is still a standard for passivation treatment. This standard is to use it at a distance of five inches or a higher distance.

The effect of using a certain amount of free falling movement of a heavy object to fire it. This standard force is the force generated by the firing device to fire the flash cap, then ignite the propellant and push the bullet. This force is tested through such an experiment. That's it.

.Then unified production. The production formula of mercury fulminate and the production method of sulfuric acid and nitric acid will directly block the spread of this technology.

Now that the Qin State has been able to produce flintlock muskets on a large scale, these muskets must be put to good use. For example, removing flints and other items and replacing them with firing hammers, improving the ignition method, etc. In this way, the reliability of the muskets will be improved.

A big improvement.

Naofumi began to draw some sketches of improvement plans. After these were completed, Naofumi believed that some weapons such as grenades and landmines could also be fired through the presence of mercury fulminate.

But as a result, the demand for mercury fulminate is very large. Therefore, the production of sulfuric acid and nitric acid must be increased.

"Hey. Hey." Ying Yu saw Shang Wen taking out his notebook and then stopped caring about anything. He felt that he was bored.

"I called you that, idiot." Shangwen had heard it a long time ago and deliberately refused to agree.

"I told you to ignore me." Ying Yu said with a kick.

"Ouch, you are too cruel," Naofumi shouted loudly.

"Who told you to ignore me?" Ying Yu said.

"Aren't I designing a musket for you?" Shang Wen said and threw the notebook to Ying Yu.

"What is this? I can't understand it. The painting is messy," Ying Yu said.

"Hey, you just don't understand. This is a percussion musket. With this, guns from now on will be called firearms." Naofumi said.

"Use a flash cap, or make it into a primer, and then make it into a bullet. As long as the firing pin is fired, you can shoot." Naofumi said.

"Really?" Ying Yu asked.

"Why would I lie to you if I have nothing to do? But we must first build a chemical factory to produce these things on a large scale before they can be used." Naofumi said.

"Chemical factory. I'll take care of this." Ying Yu didn't ask for the reason and directly blamed the chemical factory on himself.

"Forget it. You are the only one who has the spare money." Naofumi said.

"That's right, I made a lot of money from my father's harem. By the way, do you have any small inventions? I want to build a chemical plant, so I have to raise part of the money." Ying Yu said matter-of-factly.