I am the cook, but I am Li Er's son-in-law

It was already past noon when Zhou Xiaosan left the county government office and came to Tongfu Restaurant.

Yin Xuan is teaching Li Li about gunpowder.

Of course, what Yin Xuan taught them was not what Li Shimin wanted to know about "bombs", but about firecrackers and fireworks.

Zhou Xiaosan stood aside, patiently waiting for Yin Xuan to finish teaching, and listened to it by the way, but after only hearing three or four words, Zhou Xiaosan gave up decisively, turned his head and chatted with the high-speed rail, those knowledge were not something he could learn .

After teaching, Yin Xuan raised his head to look at Zhou Xiaosan, and smiled slightly: "Why are you here today?"

"Have you figured it out, or do you have a goal?"

Zhou Xiaosan forced a smile: "Da Lang was joking, I came here because I have some good news to share with Da Lang."

"Good news?" Yin Xuan raised his eyebrows, "Are you promoted again?"

Zhou Xiaosan nodded, and smiled: "That's right, just now the Minister's decree came down, and from today onwards, I will be a county lieutenant, starting from the eighth-rank official position."

Yin Xuan raised his hand and congratulated Zhou Xiaosan: "Congratulations, it seems that Captain Zhou is going to eat something good today?"

"It just so happens that there are a few new dishes in the store."

Waiting for Yin Xuan to finish speaking, Zhou Xiaosan said softly: "The county government is full of trivial matters, so I came late, and the new dishes will be eaten tomorrow, and I will have a banquet for my colleagues in the evening."

Yin Xuan nodded thoughtfully: "So you plan to hold a banquet elsewhere tonight?"

Zhou Xiaosan smiled again: "Well, I'm going to invite them to Pingkangfang."

As he spoke, he paused for a moment, glanced at Li Lizhi furtively, and lowered his voice: "I came here to ask Da Lang to go with me."

Pingkangfang?
That's a good place!
The ears of the two little girls moved. Jiu'er lowered her head and touched the wooden knife in her hand. She always felt that she had practiced for so many days and chopped hardwood for so long. Shouldn't it be time to change the target of chopping?
Yin Xuan hesitated for a moment, shook his head hesitantly, and sighed softly: "Forget about Pingkangfang, I am a decent person."

"Besides, I don't know your colleagues, and I can't chat with them when I meet them. It's just embarrassing. I'd better not go. When you come back, I'll celebrate you here."

The little girls nodded contentedly.

That is, that is, Zhengyang brother is such a serious person that he would not go to those places.

Zhou Xiaosan was a little disappointed.

But Yin Xuan's reaction was within his expectation, too, with such beautiful ladies at home, who would go to Pingkangfang?
Zhou Xiaosan didn't stay in Tongfu Restaurant for long, and left soon, in a hurry.

Yin Xuan looked at the direction he was walking at the door for a long time, and sighed softly.

Pingkangfang!

Last time I was reluctant to pay the entrance fee, I regretted that I missed it, this time I don’t have to pay, but I can’t go.
Li Lizhi and Li Shu stayed until the curfew was approaching before leaving.

The maid tried to persuade her a lot, but they all dismissed and dismissed them with the excuse of being obsessed with studying.

In the past, as soon as the sky darkened, they left.

Li Shimin waited for a long time in the East Palace, and his two daughters arrived late.

"Why did you come back so late today?" Li Shimin asked curiously.

Li Shu replied softly: "Daughter has learned a lot of knowledge today, and it took a little time."

Li Shimin's eyes were full of anticipation: "Then what did you learn today, about gunpowder, did the store tell you anything new?"

Li Shu nodded, which surprised Li Shimin.

However, following the things Li Shu spat out, the expression on Li Shimin's face gradually dimmed—he couldn't figure out what Yin Xuan was thinking about in his little head.

Such a good thing, don't think about how it can have greater power.Instead, I started thinking about how to make this thing explode louder and make the flames more beautiful
Do these things work?
Apart from being able to please my two daughters, is there any other use?

After listening to Li Shu's words, Li Shimin was a little depressed: "Is this what the store taught you?"

Li Lizhi and Li Shu nodded.

Li Shimin sighed, looking at his two daughters, do he want to blame his two daughters?They have worked very hard.

From a father's point of view, he also had to admit that Yin Xuan's decision on this matter was correct, gunpowder was already dangerous to a certain extent, and it was really not a good thing to hand over the most powerful gunpowder.

But
The more Li Shimin heard what his two daughters said, the more itchy Li Shimin felt. Those gunpowder with more powerful power, several times the power
What does it look like and what recipe is used.

Li Shimin had already given the black powder to the military inspector to study it.To be honest, the power of black powder is indeed not weak, but the effect it can play in war is not as good as imagined.

First of all, black gunpowder is not easy to preserve. If it is slightly humid, it will be useless.

The second is quantity.

If the amount is small enough to kill people, at best it can scare the cavalry and disturb the horses, but if the amount is large enough to kill people, the amount of copper coins consumed is a shocking figure.

Moreover, if the cost is not considered, how to use it is also a big problem, throwing it like a trebuchet?

But gunpowder is not as cheap as stone, and there is no guarantee that black powder will explode directly in the air.

In general, it is tasteless.

Food is tasteless, but it is a pity to discard it.

It is also for this reason that Li Shimin has a stronger interest in the more powerful gunpowder that Yin Xuan said.

After letting his two daughters back down, Li Shimin turned his head.

Since Yin Xuan couldn't find out a better gunpowder formula in a short while, he could be considered a smart person.Yin Xuan can figure out gunpowder, can't he figure it out himself?

Think about how gunpowder works.
Release higher heat in an instant.

It seems that phosphorus can emit more heat and a lot of flames in an instant.

Then I added a little phosphorus to the original formula of black powder, wouldn't it be fine?
As soon as Li Shimin clapped his hands, his eyes lit up, he was indeed the top smart person in the world, and he had thought of such a great idea!
Just do it.

Li Shimin sent Qian Niuwei to inform the Military Weapons Supervision and the Imperial Medical Office to prepare the materials and go to the test tonight.