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

Yin Xuan looked at the two little girls in front of him in surprise, a little unimaginable, this is the way they could think of in such a short time.

This is the right path.

In fact, the fireworks of later generations are also like this. When the enemy fire is ignited, the fuse is ignited, and then the projectile flies to high altitude, and then explodes suddenly.

"This is a very good idea." Yin Xuan nodded and responded, "What kind of result do you get now?"

Speaking of it.

The two little girls were a little disappointed. Li Shu shook her head and sighed: "We tried many times, but we couldn't find a good method."

The night before and last night, the two of them tried many methods.

The problem is not how to separate the two powders.

This problem is solved very well.

Gunpowder can be wrapped in mud or filled into hollowed-out wooden balls.The biggest problem is still how to detonate the second gunpowder when the projectile flies to high altitude.

It's easy to figure out how.

"lead".

They thought of this thing almost immediately, using a flammable thing, waiting for the projectile to fly high, and it happened that this thing detonated the gunpowder in the projectile.

But having an idea is one thing.

Whether it can be done is another matter.

They tried at least [-] or [-] kinds of materials in two nights, but none of them were enough. Wood is not good, and it is not easy to ignite. Blow out, burn too slowly, and when the projectile hits the ground, the gunpowder has not been ignited.

Silk cloth, kerosene, paper.
But none of them succeeded even once.

The two little girls spit out their bitterness, and then looked at Yin Xuan eagerly: "Brother Zhengyang, you are so smart, you must have a good way."

Yin Xuan nodded: "Yes, I have a good idea."

The eyes of the two little girls lit up immediately.

"But...why should I tell you?" Yin Xuan tilted his head, looked at them with a smile, and said softly, "Don't forget, we still have a bet."

The two of them sighed.

However, they were not surprised by such a result, and were already mentally prepared.

Next, we will discuss what kind of material should be used for the lead wire.

Yin Xuan looked at them with a smile. In fact, at this point, a lot of results need to be piled up to produce a result.

When Edison developed the light bulb, didn't the filament use thousands of materials?Although the lead wire is not as complicated as the filament, it still needs to be tried one by one.

Seeing the two of them struggling, Yin Xuan whispered another sentence.

"The day of Qingming is not far away, you have to work hard."

The two little girls snorted heavily. These words really brought them a lot of oppression, and even the speed of discussion accelerated.

One step closer to success.

It's only because of this finishing touch that they don't want to lose to Yin Xuan at this time!

The two little girls were excited.

Yin Lulu lay coldly on the table beside her, flipping through the book weakly, in a few days it will be the vernal equinox, what day is the vernal equinox?
For farmers, it is time to take care of the land and start farming.

For ordinary people, it means that the temperature is getting warmer, and they don't have to worry about the cold weather anymore, and they can stop burning charcoal.

But for Yin Lulu, it was the beginning of school.

Mrs. Wang took this matter very seriously, grabbed the book, and tested Yin Lulu. Except for the knowledge Yin Xuan taught her, Yin Lulu couldn't say that she had forgotten all the things taught in the private school, but she also forgot seven times. Seven or eight.

This made Wang angry.

Just like how Yin Lulu beat the chicken before, he chased Yin Lulu and gave him a good beating.

"A friend comes from afar." Yin Lulu flipped through the pages of the book and read the first paragraph over and over again. Suddenly, her face became ruthless, "Even if you are far away, you will be punished!"

With a snap, Yin Xuan patted her little head: "What are you doing, please, can you think of something better?"

Yin Lulu hugged her head aggrievedly, and read again dully.

Yin Xuan sat behind the counter, raised his hand lightly, and the light curtain of the system appeared in front of his eyes. At level [-], it was only a little more than half full, not even two thirds.

You have to wait until around Qingming to reach level [-].

Yin Xuan sighed.

Wu Youdao's voice suddenly came over: "Why is the shopkeeper so worried?"

"Come to eat?" Yin Xuan stood up and greeted, "What are you going to eat today?"

Wu Youdao shook his head: "Shopkeeper, I came here to tell you that we plan to hold a reception tomorrow."

Yin Xuan nodded, this matter is already familiar to him: "Success, I will cook Man Jiang Hong for you."

Before he finished speaking, Wu Youdao shook his head: "I'll talk about the dishes later, I just have an unkind request."

Unkind request?

Yin Xuan froze for a moment?
Is this a matter of telling yourself a discount?It's not impossible, considering the relationship between myself and Wu Youdao, I can get a [-]% discount, a maximum of [-]% discount, and no more.

Wu Youdao took a deep breath: "A lot of people came to the reception, about a hundred people."

Yin Xuan raised his eyebrows.

This is a reception, or a banquet, nearly a hundred people
Seeing that Yin Xuan was frightened, Wu Youdao chuckled: "Didn't we promise to write an essay for the store's restaurant during the Lantern Festival."

"Later that Yang Shilang also wrote an article for you, the shopkeeper."

"Suddenly, countless people followed suit, so we plan to organize a reception to taste who wrote the best prose."

"Since you are writing about the store's restaurant, your literary talents are far better than mine."

"So I would like to ask the store owner to judge one or two."

After finishing speaking, Wu Youdao blinked and looked at Yin Xuan expectantly.

Yin Xuan thought for a while, then shook his head: "Forget about judging."

As a person, Yin Xuan is very self-aware. Knowing that he has copied some poems and magpie's nest does not mean that he really has a talent.

He can barely tell whether the poems are good or bad, but he really can't read the good or bad prose. If it's not because he has read enough books, he is probably the same kind of person who is under the "Birds to the Forest". , leaving the type of "the sense of modernity is too strong, not ancient, and the lyricist has added a few more years of Chinese".

Wu Youdao was a little disappointed, but he didn't force it.

After getting along for so long, he knows the temperament of the shopkeeper - especially now that he has not drunk and his mind is clear enough.

"However, if so many of you hold a reception, my restaurant won't be able to accommodate you." Yin Xuan shook his head and sighed.