Liushuang's suspicion is very serious, which is likely a common problem for scientific researchers. However, it is this persistent spirit of breaking the casserole to the end that makes her become a strong woman in instrument science, but if she adopts such an attitude on other issues, it is easy to cause trouble.

For example, now, Liushuang always feels that I have some plans. I can only shake my head helplessly and smile bitterly: "What can I plot against you? I have a lot of money, let's talk about it. I have questions and I want to ask you, but you are not helping."

"Since that's the case, I'll accept it." Liu Shuang finally withdrew her scrutiny gaze and looked through the hardcover book. Seeing that she finally gave up on her investigation, I finally breathed a sigh of relief. It was so troublesome to deliver things, so I was afraid that Liu Shuang, the little Taoist nun. If the others, if they were her master Yuan Tiangang, they would probably find a way to ask for it if they didn't give it to him.

I looked at her gray robe and couldn't help asking, "Miss Liushuang, why are your clothes so gray? Where are you covered with so much gray?"

"Oh, this is the medicine noodles. I'm trying to make the kind of ejaculation medicine you mentioned." Liu Shuang seemed to have noticed the gray on her body now, and reached out to pat her twice, and continued to look through the book she had just obtained as if nothing had happened.

This sentence made me stunned: "Send the medicine? Are you doing it here?!" I raised my finger and pointed to the room. I was very scary. Is this little girl too scary? Can you just find a place to do the experiment?

Liushuang turned around and gave me a blank look: "You think I'm a fool? I'm just thinking about how to squeeze the launching medicine into a cake shape, and then add or reduce the amount of medicine according to the range. However, it's still difficult. If the medicine cake is too thin, it will easily dissipate. If it is too thick, it will hurt the cannon itself. So I tried it in the back mountain to see what thickness is the most suitable."

"Oh!" I breathed a sigh of relief and felt relieved, but seeing Liu Shuang's eyes with a hint of mocking look, I couldn't help but groan, losing face in front of the woman, this is what I hate the most. I smashed my mouth: "Actually, I have a good idea. I want to tell you."

"What's the idea? Are you about this medicine cake?" Liushuang suddenly became interested, and the book in her hand was put to the side. She squeezed to Xianyun and sat down and looked at me and said.

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－-

"No, it's about this launching medicine. You know, the range of the artillery can only hit more than 3,000 meters at the farthest. This is the thrust caused by the expansion of the air caused by the combustion of gunpowder, right?" I gestured to Liushuang, who nodded and signaled me to continue.

"But because the gunpowder burns too fast, it is easy to cause the thrust time to shorten the range of the artillery, so that the fire range of the artillery cannot be increased. Moreover, the burning speed of the black gunpowder is too fast, which can easily cause accidents such as blow-offs. Last year, several gunners died because of this in Liaodong. Don't you remember?" I continued to show it towards Liushuang, but I don't know if this sentence is correct, anyway, it's nonsense. As for the fact that I want to find out the basics, I will go back to time travel back to modern times and check the information on the computer.

However, in this era, my theoretical model can be said to be the most advanced, so no one can doubt it, even Liushuang cannot. After blinking her beautiful big eyes in confusion, she could only nod and agree with my point of view.

Liu Shuang is smart, and even an excellent teacher who has traveled through time in the future has to admire her. She improved the particles of gunpowder at the beginning. In addition, the purification of saltpeter was also made by her. She crushed the raw saltpeter purchased by Wuyan Institute and steamed it with alkali, then filtered it multiple times, and then slowly dried it, and then obtained a relatively purer nitrogen. This made the power of gunpowder even more powerful. I never thought of this method.

"So, in this way, I wondered whether we could try to make a kind of burning slower than black gunpowder, such as chestnut gunpowder." I licked my mouth, chestnut gunpowder, I don't know whether others knew it, but at least I can remember the four great inventions of our Chinese nation. After all, we are all descendants of Yan and Huang and the sons and daughters of China.

At that time, I was recalling the bitterness and sweetness in the reserve service. A professor sent above explained to us the history of the development of modern Chinese military equipment. That is, the maroon gunpowder was mentioned at this stage from the late Qing Dynasty to the Republic of China. The maroon gunpowder, as the name suggests, means that the color of gunpowder is no longer black, but maroon.

The production of maroon gunpowder is extremely tedious, and the process is complicated and expensive. But it is undeniable that although maroon gunpowder has only been used for a few decades and is not widely used, as a gunpowder, its power is indeed greater than that of black gunpowder, and it can greatly increase the range and impact of the projectile. Moreover, compared with black gunpowder, it is more safe? I forgot whether it is safe or not. In short, before smokeless gunpowder appeared at that time, it was the most effective launching drug that could increase the range and impact of the artillery.

I can no longer remember the method of making maroon gunpowder with a very short lifespan and not widely used. I only know that I use the kind of firewood that is roasted into maroon instead of using carbon. But since I have a powerful military researcher like Liushuang, it is a waste of talent without using her ability to further research and development.

Liushuang wrote down every word I said in detail and improved the parts she didn't understand. "In addition to using Liushuang, which was roasted into a chestnut color, has the dosage ratio on the formula changed? And to roast Liushuang into an even chestnut color, should Liushuang do some treatment first?" The question like a bead cannon made me dizzy and my eyes were so hard that I couldn't answer any of these questions, but looking at Liushuang's sincere and eager eyes, I still racked my brain and thought hard for a long time.

My head was covered with paste. As soon as I opened my eyes, my face was reflected in Liushuang's pupils. A flash of inspiration: "Well, the ratio is different from black gunpowder... Let me think about it first." After converting the ratio of later generations into the proportion method used in the Tang Dynasty, I told Liushuang: "Eight cents of nitride, four cents of sulfur, and one cents of 6 cents of slurry."

"Why do you have to use Liu Chai?" Liu Shuang was like a gossip reporter in a tabloid, asking persistently. She felt like she was interrogating. She rubbed her head: "I don't know much about this, but I only remember this, and other bamboo and wood should be used."

Liu Shuang nodded, swish, and wrote down, then thought about it for a few minutes with her eyebrows, raised her head, and wanted to continue. Where can I take out anything else? My brain is almost drained. I am not a terror. I have to deal with black gunpowder, yellow gunpowder, chestnut gunpowder, smokeless gunpowder, and TNT explosives all day long, so I had to talk about him.

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－-

"Liu Shuang, where did your master go? I have been waiting here for almost two hours." I stretched and looked at the already slanted sunset and exhaled. "My master has gone to Chang'an to see a doctor with Daochang Sun. If he came back, he should have come back long ago. I'm afraid he will be able to go back tomorrow." Xianyun also put down the pen in his hand, and stretched out a big lazily without any appearance. He also squatted beside him and sorted out the notes for Dao Yuan for the afternoon.

Seeing that Liu Shuang had already squeezed out any information about chestnut gunpowder from me, she could only put down the paper and pen in her hand and stood up: "It's already this time now, Brother Jun, please stay, I'll make some light dishes, and you can go back after you have a meal."

"Isn't that good? Your master is not here, I..." My face looked somber, but my butt didn't move at all. I really wanted to eat some light food. Liushuang's vegetarian food tasted good, especially the cold dishes mixed in the mix were even more unique.

Xianyun saw my movements and expressions and almost laughed out loud: "Brother Jun, don't be polite, just eat. What's the point of eating? Is it good, right? Besides, my sister's skills, others can't eat it..." Xianyun smiled unfairly at all, but since Liushuang and Xianyun had already tried to keep me, I was honest and didn't really refuse other people's kindness, so I had to nod and agree.

After Liushuang went out, Xianyun came over and said, "Brother Jun, this is really not going to kill anyone after surgery on a human head?"
Chapter completed!