In the corner of the courtyard of the Chu Wangfu, there is a mysterious area, which belongs to the place where no one can enter at will except Li Kuan.

Even Cheng Jingwen can't.

Looking at this area from above, it doesn't seem to be anything special, just an ordinary building.

However, underground, it is a rare basement that is more than a foot deep.

This is Li Kuan's exclusive laboratory.

"One sulfur, two nitrous and three carbon, I shouldn't be mistaken?"

Li Kuan was covered in armor and wore a special helmet on his head, and walked out from behind a large iron plate guard with a little confusion.

During this time, Li Kuan received some news from the Intelligence Investigation Bureau of the Chu Palace, and the conflicts between Xue Yantuo and the Tang Frontier became more and more frequent.

He had a hunch that the biggest war in the thirteenth year of Zhenguan was likely to occur between the Tang Dynasty and Xue Yantuo.

Although Li Kuan can't remember the specific battles between the Tang Dynasty and Xue Yantuo in history, Xue Yantuo was destroyed by the Tang Dynasty, and he still understands this situation.

Xue Yantuo, who is known as having 200,000 people in control, if Datang really wants to defeat them on the battlefield, it is estimated that the cost will not be small, and how to minimize this loss is also something that Li Kuan has been thinking about these days.

Should the Pandora's box of black powder be opened?

Li Kuan hesitated for a while.

But after some investigation, it was found that some alchemists in Chang'an City had found something similar to black powder in the alchemy process.

And after communicating with Sun Simiao, an old immortal who has the dual identities of medicine god and alchemy Taoist, he found that he actually knew how to mix sulfur, saltpeter, and charcoal into medicinal powder for alchemy.

Although the taste of this method made his alchemy fail, it strengthened Li Kuan's confidence in making black powder.

However, Li Kuan originally thought that the black powder that all the traversers had played should be very simple, but it turned out to be tossed for several days and ended in failure.

"Master, do you want to ask Divine Doctor Sun, he might be better at these?"

Liu Yuan is Li's assistant to the lab.

As his eldest disciple, Liu Yuan is still trustworthy.

In addition, his arithmetic level is very high, whether it is to record these experiments or confirm the formula, he is a very good helper.

Although Liu Yuan didn't know why his master was so interested in these things of alchemy, it didn't affect his work.

"No, the fewer people who know about this formula, the better."

Li Kuan didn't know what Li Shimin's reaction would be after he got the black powder out at that time.

If too many unrelated people knew the formula of gunpowder, it was likely that they would be harmed.

At the critical moment, Li Shimin will not tell you about human rights, and will directly cut you down with a knife, or confined you down, which is very normal.

It is said that tens of thousands of people who dug the imperial tomb for Qin Shi Huang were buried with him in order not to reveal the address.

"You help the teacher bring a pen, I'll think about it again."

Li Kuan looked at the mixture, which burned without making a sound at all, and wondered where he had made a mistake.

"One tael of sulfur, two taels of saltpeter, three taels of charcoal." Li Kuan's mouth was full of words, and he began to write the chemical reaction formula of these substances on the draft.

I'm also a science student anyway, although almost all the knowledge I've learned has been returned to the teacher.

But the simple chemical equation is still remembered, and in the periodic table, he can still recite the first half of the periodic table "hydrogen, helium, lithium, beryllium, boron, carbon nitrogen, oxyfluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chloride, argon, potassium, calcium, ......".

It's really this thing, I memorized it too many times in my freshman year of high school, and it's hard to forget it.

"No, according to the molecular weight of potassium nitrate, it should be the most used in black powder, and it must be a problem to use two taels of saltpeter with one or two sulfur and three taels of charcoal, but this one sulfur, two nitrate and three carbon, I am very sure that I am not mistaken? Even if you really remember it wrong, at most you are confusing the order of these things, and the numbers one, two, three, will never be wrong. ”

Liu Yuan saw that his master was chattering there alone, and he didn't dare to disturb.

However, he was still dizzy.

What the hell are you doing these days?

Could it be that Master Fei began to become obsessed with alchemy?

"What went wrong?"

Li Kuan saw the chemical reaction equation he had just leveled and fell into deep thought.

"Master, what do those letters on this draft mean?"

Liu Yuan still couldn't hold back after all, looked at the strange chemical equation, and asked his own questions.

"These are the codes for substances such as sulfur, carbon, and saltpeter, so I'll teach you more about it later."

Of the textbooks rewarded by the system, Li Kuan took out the least chemistry piece.

So Liu Yuan, this is the first time I have seen chemical equations.

"Is that so? Master, didn't you just keep talking about one sulfur, two nitrous, and three carbons? Is it the same as the two and three on your paper? ”

As soon as Liu Yuan's words came out, Li Kuan was stunned.

That's right, in this chemical equation, the coefficient in front of sulfur is one, the coefficient in front of potassium nitrate is two, and the coefficient in front of carbon is three.

Thinking about it like this, Li Kuan immediately started to calculate again.

The molecular weight of sulfur is thirty-two, potassium nitrate is one hundred and one, and carbon is twelve, and according to this equation, the weight ratio of the three should be thirty-two to two hundred and two hundred and two to thirty-six.

It's not a one-to-two-to-three relationship at all.

No wonder it hasn't been successful in the past few days, and the relationship is that the formula has seriously deviated from the requirements.

"Liu Yuan, let's do it again, this time, we must be careful."

As Li Kuan's eldest disciple, in the laboratory, he naturally had to take on the heavy responsibility of concocting the gunpowder formula.

This kind of thing that explodes if you are not careful, Li Kuan, a person who spares his life, must be able to stop doing it without doing it.

If you want to let Liu Yuan come to this laboratory that idlers can't enter.

One pound and sixteen taels.

In the end, Liu Yuan weighed about a pound of saltpeter, two taels of sulfur, and three taels of charcoal, and carefully remixed them together.

"Master, then I'm going to point the lead?"

Liu Yuan looked at the pile of mixtures in front of him, and he didn't have any fearful thoughts, sorted out the leads, and was about to go to the side to get the fire fold, which made Li Kuan startled.

"Wait a minute! You're going to die. With such a pound of gunpowder, you are ready to ignite it here, don't you die? ”

The ignorant are fearless.

Although Li Kuan pulled Liu Yuan to do risky work, he didn't let him die.

Although this apprentice's head is not as fast as Di Renjie's, he is more obedient and has strong execution, and he is still very easy to use.

"You divide this gunpowder into ten parts, then take out half of it and put it in this iron box, and then light it with a fuse."

Whether it is saltpeter or sulfur, the purity is not necessarily very high, so the black powder made should not be so powerful.

However, Li Kuan still did not dare to take it lightly.

Safety first, at a critical time, this is not in vain.

Seeing Li Kuan's cautious instructions, Liu Yuan didn't ask so much, and just did it.

"Master, then I lit the fire?"

Liu Yuan stood next to the iron box and picked up the fire fold.

"Order! After ordering, I immediately ran to the teacher. ”

Li Kuan hid back behind the big iron plate and poked his head out to talk to Liu Yuan.

"Smack!"

In the silent laboratory, there was the sound of Liu Yuan lighting the fire fold, and then he skillfully pointed the fuse.

After tossing for a few days, Liu Yuan is already familiar with this process.

However, after ordering, he didn't quickly throw it away, but glanced at the burning lead a few times, and then walked in the direction of Li Kuan.

In the past few days, Li Kuan didn't know how many times he had said, "I immediately ran to the teacher after ordering".

At the beginning, Liu Yuan was still very obedient.

However, after each order, there was no major movement, and slowly, Liu Yuan ran away in a less panic.

"Boom!"

Liu Yuan, who was halfway through, suddenly heard a boom and was startled.

And Li Kuan saw that before Liu Yuan came to his side, the gunpowder exploded, and he quickly poked his head out to confirm it.

OK!

His stupid apprentice was still standing near him, except for his face being a little pale, he was not harmed.

Although the sound of this gunpowder is a little louder, after all, it is only a small amount, and the purity is still limited, so it will not be too destructive.

It's just that in the closed basement, the noise is a little louder.

"Good! It seems to be on the verge of success! ”

Looking at the black smoke on the iron box that had not disappeared, Li Kuan finally showed a smile on his face.

"Master...... This...... What kind of spell is this? ”

Liu Yuan, who looked very powerful just now, was sitting on the ground at this time.

This reaction is a bit sluggish!

"There is no spell, this is the black powder that the teacher said."

Li Kuan didn't laugh at Liu Yuan.

For people of this age, it is normal for the box to make such a big movement inexplicably, and it is normal to be a little frightened.

"Black powder is just those saltpeter and sulfur and charcoal mixed together?"

Liu Yuan still couldn't believe that this "spell" was such a powerful black powder that he had just configured by himself.

Could it be that he is possessed by Thor today?

"That's right, but you can't talk about this to the outside world, especially the formula ratio used in gunpowder, you must not disclose it, otherwise you will have to worry about your life."

Li Kuan looked at Liu Yuan with a serious face, without any intention of joking.

Historically, gunpowder also appeared early, but it was not until the Ming Dynasty that the formula ratio of black powder really reached that in later generations.

Now that Li Kuan has advanced it by almost a thousand years, this impact is definitely difficult to estimate.

You must know that during the Song Dynasty, the inaccurate black powder formula also added infinite help to the Song army to protect the family and defend the country, needless to say that it is still the early Tang Dynasty.

[00ks] "Whether it is saltpeter, sulfur, or toner, it is not ground fine enough. Next, arrange someone for the division to grind these materials well, and then you will test it again. Remember, you must not use more than one dose per test, otherwise something will happen. ”

Li Kuan has been staying in the laboratory for several days, and the rest of the finishing work will be handed over to Liu Yuan.

As for the large-scale production of gunpowder......

He wasn't ready to rebel, so why did he do this?

The recipe has been prepared, and when there is really a war, he will let Li Shimin see the power of black powder, and then make it into something like a rocket or grenade, equipped with soldiers for the expedition, and it will definitely be enough for the other party to eat a pot.

If it is used together with the hot air balloon camp, thinking about that scene, Li Kuan feels sad for the other party.

……

The paddy fields along the Weishui River are the most fertile in the Guanzhong area.

These fields owned by the Chu Wangfu are all next to Weishui.

After the morning court today, He Qinlao and Yang Benman took a carriage out of Chang'an City, and came to the side of the field in civilian clothes.

"Brother He, during this time, you have also heard a lot of various rumors in Chang'an City. Today, I insist on pulling you with me, that is, I want you to see my personality clearly, I can't get along with His Royal Highness the King of Chu, not because I have prejudices against him, but because what he did hurt the interests of my Tang people. ”

Yang Benman had already inquired clearly, and these paddy fields had been planting rice for five or six days, but not a single fish fry had been put in.

This can fully show that Li Kuan's practice of asking the farmers to dig the fish ditch and the fish pit is a waste of the field, bringing unnecessary losses to the farmer out of thin air, and wasting the time of digging the fish ditch.

Therefore, Yang Benman is ready to understand the situation clearly, and this impeachment of Li Kuan must receive some results.

"Brother Yang, our Yushitai has the right to hear about it, and it is a matter of course for the people to ask for their lives. It's just that His Royal Highness the King of Chu has always done things without a last resort, and I don't think he would make such a low-level mistake. ”

He Qinlao has no special liking for Li Kuan, nor does he have a special dislike.

However, as the palace servant, he still cherishes his feathers very much, and he doesn't want to stick to a thing like Yang Benman who "bewitches Yang Benman".

Therefore, in recent years, he has basically rarely impeached Li Kuan.

More often, he focused his energy on officials below the fifth rank in Beijing.

"Humph! A wise man must make a mistake in a thousand thoughts, although His Royal Highness the King of Chu is extremely smart, but it is impossible to conjure thousands of fish fry out of thin air. ”

Yang Benman also made full preparations this time, and asked several fishmongers earlier to learn about the fish farming situation in Chang'an City and even the entire Guanzhong Road.

To put it mildly, even if the fish in the hands of all the fishmongers in Guanzhong Province are sent to the Chu Palace, it is not enough for tens of thousands of acres of paddy field farming.

In Yang Benman's view, although Li Kuan only asked Sancheng to dig fish ditches and fish pits in the paddy fields, it seems that it has been risked, but Sancheng is already an astronomical amount.

Even if there is only one percent, it is impossible for so many fish fry to come out.

"There's a farmer there, carrying a barrel, let's go and ask about it."

He Qinlao didn't want to quarrel with Yang Benman, and felt that he had come, so let's go and find out the situation.

"This farmer, are you here to fetch water?"

He Qinlao had a kind smile on his face and shouted to the farmer not far away.

Shi Yang looked at the two well-dressed personnel in front of him standing there, stunned.

But how do you feel like the questions they're asking are so silly?

There is obviously a ditch next to this paddy field to divert water, so there is no need to carry water for irrigation, why do people still ask themselves if they are here to carry water?

"Not really!"

As a tenant of the Chu Prince's Mansion, Shi Yang had met Wang Fugui and Wang Xuance several times during this time, and he didn't have so much fear for ordinary officials and businessmen.

Working for the Chu Wangfu is a little reassuring.

That is, if something happens, the Chu Wangfu will help to take it.

As long as you don't violate the rules and regulations, these tenants are not afraid that anyone will dare to bully them at will.

The nearby officials also knew that these tenants of the Chu Prince's Mansion were not easy to mess with, and they would not easily find trouble with them.

"Carrying a bucket in the field, not to water it, what is it for?"

For the farmer's answer in front of him, He Qinlao felt a little surprised.

"Brother He, there is so much water in this paddy field, and Weishui is not far away, where do you need to carry water?"

Yang Benman is more down-to-earth than He Qinqin, after all, his family has a large tea garden.

Although tea plantations are different from paddy fields where rice is grown, they are all agriculture after all.

He Qinlao's face was slightly red, but he quickly adjusted his mood and continued to ask, "Then what are you doing with two wooden barrels?" ”

"Put the fish fry!"

Shi Yang felt that the two nobles in front of him seemed a little weird, not at all like the nobles of the Chu Palace.

"Fish fry?"

He Qinlao and Yang Benman glanced at each other, revealing surprise.

Seeing that Shi Yang was already half-squatting and put the wooden barrel on his shoulders on the edge of the ridge, they hurriedly walked over and looked inside the barrel.

Originally, they thought that there were at most a small number of fry of various sizes in the barrel, but they were surprised by the sight of the picture.

Densely packed with finger-sized fish fry, covered with buckets.

I saw these small fish scrambling to poke their mouths out of the water and breathe the air outside.

The barrel is so big, but looking at the number of fry, as long as there are hundreds in a barrel, it is no wonder that these small fish can't stay under the water and have to rush to the surface to breathe air.

"This farmer, these fry, but you fished them out of the pond?"

After being silent for a while, Yang Benman spoke first.

"No, the Lord gave it to us. About 1,000 fish fry can be distributed per acre of land, and this is the third load I have picked today. ”

Shi Yang didn't know why these two nobles were interested in these questions.

However, in the spirit of thinking that more is better than less, he still answered their questions.

Anyway, it's not a secret, and the king doesn't say that he can't tell anyone.

Besides, so many tenants are picking fish fry from the courtyard of the Chu Wangfu, and there is no way to keep it secret.

There's no need to keep it secret.

"What the Lord gave you?" He Qinlao reconfirmed, "Is it the Chu Palace?" ”

"That's right, this piece of land belongs to His Royal Highness the King of Chu, and these fish fry, of course, were given to us by the King of Chu's mansion."

Yang Benman: "But with such a large piece of land, the number of fish fry needed should be very large." Where did the Chu Wangfu get so many fish fry? ”

Shi Yang: "I don't know about this, anyway, the king steward sent someone to inform us to pick fish, and we went." ”

He Qinlao: "Are there many people going today?" Did you pick the fry? ”

"That's a lot, how many fish fry you want, everyone has picked them." After Shi Yang finished speaking, he lifted one of the wooden barrels and slowly poured the water inside into the paddy field along with the fish fry.

Leaving Yang Benman and He Qinlao looking at each other with a blank face.

What everyone thought was impossible, he actually let His Royal Highness the King of Chu do it again.

This......

That's weird, isn't it?

Recommended: Witch Doctor Awakens Mobile Reading.