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Just like the first impression.

Call her rough. She lives in a family that doesn't have enough to eat.She was obviously a country girl, but she actually used bath beans.

Call her delicate, she washes her face with rainwater.

The night is deep.

After Huo Yunqian finished bathing, he sat on the bedside and read a book in a white undershirt.

When Shi'an came in to change the candle, Huo Yunqian asked while turning the pages of the book: "That side hasn't rested yet?"

"Yes, young master, I heard that it has been under development."

Seeing that Huo Yunqian didn't even raise his head, Shi'an asked this question, as if he was only concerned about the progress, so he didn't dare to disturb Huo Yunqian's reading, and swallowed what he wanted to say:

He couldn't believe that he had already eaten four meals.

He heard from the personal guard guarding Xu Tianxin that just half an hour ago, under the arrangement of General Lu, he was just making a routine inquiry:

Miss Xu, are you hungry? Do you want anything to eat?You can do it in the back stove, I'll help you get it.

Miss Xu said, it’s already this hour, is there still food in the camp?Hurrah.

Excuse me, help me get some mashed potatoes, some rice, some meat and vegetables, no matter what kind of meat.

If there is ready-made soup, add some vegetable soup, any dish is optional.

Four snacks, preferably one of each.Do you have ginger jujube tea? A little more...

The guard said: "Wait a minute, I will write it down."

This doesn't seem to be a small amount.

Too many styles.

But didn’t you eat at night?
If I remember correctly, since you arrived here, you have had a bowl of bird's nest porridge, eaten roast goose, gnawed on chicken legs, tasted snake meat, and eaten two pieces of sweet potatoes.

Although Shi'an didn't say what he was complaining about in his heart, Huo Yunqian noticed it more and suddenly closed the book in his hand.

Late at night, ugly time.

That's two o'clock in the morning in modern times.

Huo Yunqian appeared in the dark guard camp wearing a black mink cloak.

Lu Yan led the general's personal guards who stayed here to greet him.

Just as everyone was about to salute, Huo Yunqian waved his hand to stop them.

Huo Yunqian was afraid of affecting the inside, so he walked lightly to the window.

Xu Tianxin, who was in this room, did not notice at all that there were more than a dozen generals standing outside. The leader was the famous General Huo. She was still concentrating on extracting more glycerol.

Because Xu Tianxin has only heard about the approximate ratio and cannot be precise.Making explosives and performing surgery on patients cannot be careless, so more raw materials need to be prepared.

In Huo Yunqian's eyes, Xu Tianxin was dressed strangely at this time.

Her hair is all tied up with a man's hairpin, but there is no hairpin, only a chopstick is used instead.

She would change into a white coat after entering the house. The reason is that if the white coat is stained with soil, saltpeter and dripping glycerin, it can be discovered in time and can be changed quickly.Afraid of reaction.

There were also a few pieces of paper and an ordinary charcoal pen on her hand.I was afraid that the charcoal would stain my hands, so I simply tied a knot with a rag at the top a few times.

And as the glycerin was precipitated from the special vessel, she was recording it casually.

Huo Yunqian couldn't see what was written on that piece of paper.

You would be surprised if you saw it. All listed are complicated calculations.

Huo Yunqian looked at Xu Tianxin who was busy, his eyes followed the movement of her hands, and thought: Glycerin?

Never heard of this term before.

According to Xu Tianxin’s oral statement and the contents of the report, she said that glycerin is a saponification reaction.

She was able to make soap before, and she also discovered that after oil is boiled and heated, if it is mixed with lye, exposed to the sun with the wind blowing outside, and finally dried in the shade for several days, it can react with soap foam.

As for glycerin, after she finished making the soap, she curiously added sugar, some peppercorns, and various other ingredients until she added salt and found that another clearer oil would appear.

If you dare to try it, the oil precipitated by salt is a little bit sweet. You may say it is strange, but it also looks like colorless syrup.

Huo Yunqian glanced at the two bags of salt specially prepared for Xu Tianxin in the room.

She was at home and wasted a lot of grease just to try it out of curiosity?
It can be seen that she did earn some money from selling Jialai soapberry, which is still a bit profitable, and she can play with it in her spare time.

Xu Tianxin didn't know what Huo Yunqian was thinking. If she knew, she would be embarrassed to say it. How would she describe it?

I can't explain it to people here, it's a chemical reaction.The fats and fatty acids in the soap will react with sodium hydroxide to form sodium salts of fatty acids. This can be said endlessly. Should I give you a chemistry lesson to the generals?How did she know it, and she had to start from scratch in class.

However, Xu Tianxin, in addition to lying that he was doing the experiment for fun, also gave a theory that can completely convince smart people.

Isn't that right? Huo Yunqian looked at Xu Tianxin's bubbling filter and was thinking about it. Xu Tianxin mentioned this word repeatedly, but he had never heard of it.

Glycerin can be obtained by reaction.

Glycerin cannot be placed next to nitric acid in another room. It will react and explode if exposed to a slight shock.

And what is reaction and how to describe it?

According to the content of the report, Xu Tianxin’s dictation.

She said that the reaction she mentioned was like: "The cinnabar is burned into mercury, and it becomes cinnabar again after a long period of time; the iron is painted with cengqing, and the iron is as red as copper. It is also like a crime scene. There is no blood left on the surface, but with the High-concentration vinegar will detect blood stains. Using glutinous rice balls to autopsy will detect poison. This means that one thing can become another thing after a reaction."

After hearing this metaphor, Lu Yan felt even more sorry for Xu Tianxin.

Well, after Huo Yunqian saw the report, he had a rare unexpected expression on his face.

Xu Tianxin's words "burning red sand into mercury" come from the Taoist classic "Baopuzi".The most widely circulated nine-character mantra is usually used by Taoist priests to ward off evil spirits and catch ghosts.It also talks about Zhu Yan and how to become a god.She was able to find and look through books from such a long time ago and from such a remote area. Sure enough, she would make an elixir if she took another crooked step.

As for the last two sentences, they come from the contemporary miscellaneous book "The Secret Detective".

It can be seen that there is nothing she is not curious about.At a young age, I read all kinds of books.

But I have to say that after describing it like this, I completely understand what it means to be reactive.

After understanding, Huo Yunqian completely let it go and respected all requests made by Xu Tianxin.

However, problems also arise.

"Since the two are put together, they will explode if they are slightly shaken. Did she tell you how to solve this problem?"

Lu Yan motioned to the guard to bring the bag and told Xu Tianxin that it was brought here.

"Return to the general, this is diatomaceous earth, the sludge-like mud in rivers and seas.

If you see bubbling riverbeds in a clear river, the silt in that section of the riverbed will contain this kind of soil.

It is fished out, dried, fired, crushed, and then mixed with white material to make mud. People usually use it to paint walls.

Erdao River has many uses. In addition to painting houses, it can be used to dry food, make floor mats in bathhouses, and store corners to absorb moisture.

I heard that there were hand towels made of it placed outside the huts in Erdaohe.

This way you don't need to prepare more dry cloths to wipe your hands. If there are lumps inside, you can break the cloth and use it again to absorb moisture. "

After a brief introduction that this is water-absorbent soil, Lu Yan told Xu Tianxin's original words: "She said that she found that using this kind of soil to ram a house will not burn the house, is heat-resistant, non-combustible, sound-insulating, fire-proof, and is also wear-resistant." Sex, it doesn’t matter how you dig it out, I want to use this kind of soil mixed between nitrate and glycerin.”

And he has already tried it. As a subordinate, Lu Yan is accustomed to not waiting for anything. It is too late to let him wait for the conclusion to be reached.

So the glycerin and soil saltpeter she brought from Xu Tianxin have been mixed with diatom soil.

Although it still exploded, maybe because the amount of diatom mud was too small, it was indeed not as unstable as before.

Before, she personally put on her armor and protective gear. Regardless of Xu Tianxin's obstruction, she directly placed the nitrate and glycerin on a wooden board.

Then shoot the support below the plank with an arrow.As the support collapsed, the two solutions fell to the ground and exploded with a bang, destroying four trees on the spot.

While listening to Lu Yan's explanation, Huo Yunqian left the camp to look at those trees.I heard from Lu Yanhui again how much black powder was used to blow up four trees.What is the dosage of glycerin and nitrate? It can be done with only the capacity of two small water cups filled with water.Moreover, when there were no other trees, the height of the blast was about fifteen battles. (50 meters)
In other words, if this new type of explosive can be used on the battlefield, as long as it can be transported stably, with the same amount of nitric acid and glycerin, it will be several times more powerful than the current gunpowder. Now it depends on the ratio.This ratio needs to be tested again and again.

Because once too much diatom mud is put in and it is too stable, even if it is ignited with gunpowder wire, it may not explode, or the exploded area may be smaller than expected.But it’s even worse if it’s too little. In Xu Tianxin’s words, it will react again and explode before it reaches the place, and those who will explode will be our own people.

No wonder you have to stay up late to prepare all the ingredients.

I heard that Xu Tianxin also asked for gunpowder and saltpeter.Soil nitrate and glycerin are in the same ratio, and gunpowder niter and glycerin are in the same ratio.He is a serious and down-to-earth person.

Once this kind of explosive is successfully developed, it will be of great benefit to mining and mining.

That night, Huo Yunqian simply rested here.

I also had the opportunity to see Xu Tianxin ordering his sixth meal after his ugly time.He gave him his midnight snack of shredded chicken noodles.

Others rely on tea to stay up late, but she relies on food to stay up.

Before going to bed, Huo Yunqian suddenly realized that he had missed a question:
"Ten Ann."

Shi'an appeared mysteriously: "Yes, young master."

"What did Xu Tianxin do in the first place by making glycerin?"

Young Master, it was all written in the memorial, but you didn’t let me read it. Shi An thought: Fortunately, Shi An, I know everything.

"We have developed a hemorrhoid suppository called chrysanthemum honey before, and I heard that it sells very well. Master, do you think this is evil? The explosion caused by making glycerin is to make chrysanthemum honey again. This is a A kind of laxative. It was a coincidence that her doctor and master also kept these kinds of feces and urine containing nitrate in the house. Then the glycerin was sprinkled on it and it reacted. With a bang, two rooms of the house collapsed. By the way. , Master, I still..."

"Go out."

Shi'an endured what he didn't finish, and went out again to take a nap against the outer room.

Huo Yunqian went to sleep with Xu Tianxin speechless.

He felt that he could not connect the little girl in a white coat with her hair tied up with only a chopstick, Xu Tianxin's calm look tonight, and the hemorrhoid cream.

Others study medicine and read normal books, but she reads Taoism.

Others start by picking herbs, decoction them, and feel the pulse.Even if she walked fast, she would first learn to look at her teeth to look out for colds and headaches, but she started with hemorrhoids.

If you dare to make one, many people will buy it?It doesn't cure anyone.

The next morning, Huo Yunqian retracted his doubts at this time.

Because what Shi'an hadn't finished saying was that it was too dry in the north and he happened to be feeling unwell for a few days, so he asked Xu Tianxin for some glycerin.

Miss Xu asked, how do you plan to use it?
Shi'an said, I'll drink it... Xu Tianxin doesn't seem to agree very much, is that a wipe?

Xu Tianxin said, this alone won't work. You bring some honey, and I will mix something else for you.

Just like that, resting in the guard station of the secret guard training ground again, with limited conditions, Huo Yunqian didn't want to know about the power of Ju'er Shuang's medicine.

He was smoked by Shi An.

Huo Yunqian complained in his heart: Ten years of peace is like giving birth to a baby in ten months.

Shi'an was indeed so anxious that he almost didn't have time to squat down. He didn't even care about his superiority. He pulled him away from his young master and signaled him to squat down later. He even accepted the board when he turned around.

Then there was the sound of Shi'an exerting his strength and falling with a plop.

Shi An thought, the greasy and sticky little medicine suppository is really useful. This time, he has gained eight kilograms after not passing out for three days. He will find a scale later, and he will know how many kilograms he has passed out by weighing himself on the scale.

And he wants to buy some Ju'er Shuang for storage first.

Send it to the young master, to the elders, and to Jialai in case of emergency.There is a kind of emotion called also being a patient.

And Huo Yunqian stood at the wind outlet early in the morning, using it as an exhaust fan. After burning incense, he came back. When he came back, he turned around and rode away, saying that he wanted to go back to the mansion to deal with official documents. He didn't need Shi An to follow him, so he could wake up and deliver the message. .

Yes, Xu Tianxin slept until noon.

There were two maids waiting carefully in the room where she was resting. One was rubbing her shoulders and the other was beating her legs.

After she woke up, another one cleansed her face, and another brought her a table. I heard they made breakfast several times.It’s not the repetitive kind, it’s the kind of thing that you do over and over again.

While the rice was being served, a maid kept pressing it down with a rice spoon.

Xu Tianxin sat and watched and couldn't help but ask: "Do you want to make rice cakes for me?"

"Go back to the girl, it was the order from above that the girl must eat enough."

You can't turn a good meal into a compressed military ration.

Xu Tianxin thought that these were arranged by her general sister.

So after she ate and woke up, she appeared full of life.

When Huo Yunqian led his trusted generals, one of whom was Jia Lai who had just rushed back, and his deputy Shan Shao, to the observation platform in the mountains, Xu Tianxin had been giving orders in the dense forest for a long time.

She was wearing a maroon armor, and her face was also covered with armor, which made Jialai couldn't help but let out an ouch.

This little girl cherishes her life. While she loves herself, she also cherishes others.

Because Xu Tianxin first laid out the piles of diatom mud, and then ordered his powerful guards to use bamboos that were as long as they could grow, fish the glycerin from the small bucket, pour it into the soil, and then mix it with nitric acid liquid.

After redeeming it, if it’s fried, just fry it. If it’s not fried, wait a while and go to other stalls. After a while, there’s no movement at all, then Xu Tianxin will let Lu Yan give the order to have several soldiers in armor mix a few things together. Install the gunpowder wire together, and finally use the gunpowder wire to try to ignite again.

And every time there is a misfire, or the explosion area is not large enough, it is not proportional to the dose.Xu Tianxin will record those pieces of paper with charcoal and readjust the proportions next time.

In the end, Lu Yan led twelve teams and couldn't remember how many times they had been tested.

At this time, Xu Tianxin was trembling and trying to light the gunpowder line. Suihe saw that he was anxious. The line was so far away. What are you afraid of? He shouted to Xu Tianxin, "I'll do it."

"Don't come over here. This is big and downhill. I ski and run fast and your horses will be frightened. Where is Sister Lu?"

"There, there, it's warm in the cave."

Lu Yan waved his hand to Xu Tianxin in a funny way.

"Where's Suifeng?"

"We're all back, Miss Xu, please order!" Please.

Xu Tianxin's live broadcast room has long been forced to go offline, and there is no background music reminder.

But she herself shouted for encouragement, "Face the strong wind!"

Then Xu Tianxin lit the fuse like a firecracker, turned around and ran away.

She knew in her heart that the amount this time was too large. Instead of blowing up some black smoke or blowing up a few big trees.

Sure enough... the entire village of Leijiawo was frightened out.

Li Zhenglao Lei was even more confused. Where was the noise?You want Yu Gong to move mountains, or are you calling?

Their village was too close to the border, so he hurriedly told his old woman: "Pack your bags quickly and run away at any time." Run to Erdaohe.

At the same time, Xu Tianxin, who has made such a big noise and has always been very timid, is really coming out.

She actually didn't get stuck in her legs while running away.

She absolutely cannot explain that she has a grandmother and family here.

She also skated her fastest time yet.

And just as she slid to the foot of the mountain, a spectacular explosion scene appeared behind her.

Jia Lai was so excited that he had tears in his eyes. This would become Huo Jiajun's back-up in the future.

Shan Shao also opened his mouth in shock and clenched his fists hard, worrying about the fate of Huo Yunqian, Huo Jiajun and himself.He was very lucky, thanks to the large number of troops being mobilized today.The blasting site is also arranged here.Otherwise, there are ministers and envoys sent by the imperial court in the town, and the capital is about to send the deputy general to keep an eye on their general.

The less people know about this, the better.

Through the copper telescope, Huo Yunqian clearly saw that Xu Tianxin was still skiing on his feet, so he raised two ski sticks and waved them at the people down the mountain. When Lu Yan picked him up, she took off the protective gear on her head. Wearing clothes, showing sweaty hair and a bright smiling face.

I had to rush to finish it in this time. I am so frustrated. After all, the update has been discontinued. Does it make the beautiful girls who are waiting for the update anxious?