Work overtime

Han Ziqian marked the dimensions on the picture based on the data provided by Jiang Yuebai.

The design of both of these is not difficult, especially the latter one, which only requires gunpowder, but it requires more. According to preliminary estimates, it takes about five or six kilograms of gunpowder to make an explosive bag.

Mixed gunpowder is a prohibited item controlled by the Bureau of Fire Powder.

But you can buy the three ingredients and mix them yourself.

Han Ziqian was wondering whether to hand over the drawings to King Jin now or directly find Taoist priests and craftsmen to make a batch himself.

By this time, the Ming Dynasty had discovered that the power of firearms was related to the ratio of gunpowder and the gunpowder production process.

But what is the best ratio is determined by experience and is confidential.

Han Ziqian asked with the intention of giving it a try, "Mother, are you particular about the proportion of gunpowder?"

Jiang Yuebai thought for a while and searched the system.

The optimal black powder ratio was obtained by chemist Chevriery in 1925 after many experiments.

Once the saltpeter content is too high, it will easily absorb moisture.

During the Opium War, the Qing Dynasty's coastal defense artillery was heavier than the British naval artillery and should have a longer range. However, it was actually beaten by the British artillery from a long distance because of the quality of the gunpowder.

The gunpowder used in the Qing Dynasty was because the purity of saltpeter was not high and there were too many impurities, so the proportion was too high, and it was easily affected by moisture in the humid environment in the south.

Therefore, in order to improve the quality of gunpowder, the saltpeter needs to be purified without too many impurities. It needs to undergo recrystallization in junior high school chemistry, which is the process of "boiling saltpeter" in which the saltpeter is dissolved in boiling water, filtered while it is hot, and then cooled to crystallize.

The water used cannot be well water, but precipitated rootless water, such as snow water and rainwater.

Saltpeter must be refined three times in total until it tastes bitter and salty with "absolutely no brine".

After the three materials are mixed, they need to be thoroughly ground with a wooden pestle 3 times into powder, and then fully mixed and compacted.

Jiang Yuebai explained these modern scientific knowledge to Han Ziqian in detail, and the percentage was calculated using one hundred kilograms of gunpowder.

When Han Ziqian listened to the explanation, he was like an undergraduate listening to a YS-level instructor patiently explaining basic concepts to him.

In addition to admiration and shock, the subtle love between the opposite sex exploded like gunpowder being ignited.

After Han Ziqian looked at Jiang Yuebai in a daze, his face suddenly heated up.

"My dear, I will write it down first and then verify it with you."

There was a knock at the door, "Master Han, your ginseng soup is ready."

The voice that spoke was Baitao.

The girl was pregnant for the first time and had a lively and straightforward temperament. She specially took this opportunity to come over and take a look at Mr. Han.

The corners of her eyebrows and eyes couldn't hide the love in her heart.

Han Ziqian was naturally aware of Baitao's thoughts. The faint smile on his face just now disappeared. He lowered his eyes, spread the paper and studied ink, and said lightly, "Put it on the table."

Baitao was used to Mr. Han's cold attitude and didn't take it seriously.

After putting down the soup bowl, he happily ran to Jiang Yuebai's bed and said, "I've seen your Majesty. Is your Majesty feeling better? Are you hungry? I'll tell the kitchen to cook something for you."

Jiang Yuebai looked at Baitao enviously, so youthful and fresh.

I am only sixteen years old. Before entering the palace, I did not want to grow up beside my parents. Although my mental age is a bit precocious, I am still only eighteen. Since entering the palace, I have returned to the mental age of thirty years old in my previous life.

Jiang Yuebai did not answer the question about food, but asked with concern, "How is Lichun?"

"She" Baitao turned to look at Mr. Han, then turned back and replied with lowered eyes, "Lichun is very sad, after all, her brother is gone. I heard that they are orphans and have been dependent on each other since they were young. Sister Susu asked Lichun I went to the mourning hall and stayed with Sister Qing'er. This way I can cry happily if I feel uncomfortable."

Jiang Yuebai closed her eyelids and expressed with her eyes that she understood, "You have a lively temperament, comfort her more. Keep an eye on her, and make her eat something no matter how sad she is. Just say that I need her to be here to serve her." Tao Rui Palace does not support idlers."

After a pause, he added, "Go and call her over now."

"Yes, empress. I'll go right away." After Baitao said that, he ran out in a hurry, unable to wait even a moment.

Jiang Yuebai couldn't help but think how interesting it would be if Mr. Han and Baitao were together.    One is slow and methodical, while the other is impetuous and reckless.

After Baitao left, the chirping sound disappeared instantly and became very quiet. Only the rustling of the rain outside the window could be heard.

Han Ziqian quickly wrote an excerpt with pictures and texts.

After drying the ink, he took it to Jiang Yuebai's bed.

Jiang Yuebai was lying down at a 15-degree angle, which was much more comfortable than a 0-degree angle. She stretched out her hand to Han Ziqian, "Young master, go drink the ginseng soup first. It will get cold in a while."

Han Ziqian tacitly put the fold in her hand, subconsciously tucked Jiang Yuebai in, and then went to the desk to drink ginseng soup.

Jiang Yuebai saw what Han Ziqian wrote, just like his doctoral supervisor saw the cutting-edge theory, academic papers with clear organization, detailed data and beautiful layout.

More than a satisfaction can be described.

It's so satisfying.

I couldn't help but think that if I became emperor, I would make Han Ziqian prime minister. It's so reliable.

But then I thought about it again, it's not like I am a layman, I don't want to live in the court, and I don't care about fame, wealth and power.

"Master Han, how are you going to send this to the regent? The letter I sent back to Taorui Palace was robbed last time." Jiang Yuebai was still frightened by this.

This thing in my hand is too important and sensitive.

It is a magical weapon in your own hands, but if it falls into the hands of the enemy, haha, it will be like the Qing Dynasty waiting to be destroyed.

Han Ziqian stood by the desk with his hands folded, standing erect, quietly thinking about what to do next.

He had finished drinking the ginseng soup and was waiting quietly for a while for his nose to bleed so that he wouldn't have to drink it again in the future.

He had already thought about safety issues just now. Such a powerful weapon can only be mastered by absolutely reliable people and must not be leaked.

"I will send it off in person in a moment."

After thinking about it for a while, he decided, "Only send me a drawing. I won't write anything else. Others won't be able to guess."

After thinking about it again, "I won't send you the drawings yet."

After saying that, he walked to the front and sat down, his eyes slightly lowered, and he didn't speak for a while.

"Master Han?"

Han Ziqian's eyes fell on the light green curtain behind the bed, "My Lady, this document is really confidential. It cannot fall into the hands of anyone before the emperor comes back. I thought about it and decided that it would be best to burn it. All the information in the document is confidential." It has been clearly remembered in my mind. What do you think, the empress?"

The candlelight shone slantly, faintly staining the tips of his eyebrows, and his already beautiful eyebrows seemed to be covered with a halo.

"Okay. I think so too." Jiang Yuebai responded decisively, guessing Han Ziqian's plan, and asked, "After finishing the things, does Mr. Han have someone reliable to go out of the city and send them to Zijingguan?"

Han Ziqian heard the implication and turned to look at Jiang Yuebai, "Do you already have someone in mind?"

"There is someone in the imperial guards who can be used. Meng Shu is a descendant of General Meng Tian. He is very wise and brave. Let's see if we can come over."

"Okay. It just so happens that I have a candidate in mind. Together with Meng Shu, I can have someone to take care of you."

That is Lu Kunming.

Since you want to be his brother-in-law, you have to pass his test and be a man of wisdom, courage, and unparalleled loyalty.

"Okay, now that it's settled, let's not delay. Master Han, hurry up and make arrangements and send it to the emperor as soon as possible."

Han Ziqian frowned as he listened to the sound of rain, "What should I do?"

I can't help but think of the queen in distress.

Jiang Yuebai deliberately joked with a bit of lightness, "Young Master Han, please don't worry, I am not an ordinary person, I will not die. There are monsters in this world, but just like that, there is nothing to be afraid of. Young Master Han, if you don't hurry up, the country will If he dies, it will be your fault."