Datang: Acting as a celestial mystery at the beginning

"This piece is called Blue and White Porcelain. It doesn't belong to any Yuefu, nor is it a Jiaofang piece. It was compiled by myself."

Li Yi'an shamelessly copied the song and asked, "What do you think, little lady?"

They all know white porcelain and celadon, but what is blue and white porcelain?Porcelain can also be written into music?

This strange name made them feel very puzzled, but it was sure that it sounded good.

"It sounds good, it's also special, and it gives people a very novel feeling."

Zhou Nan asked expectantly: "Can you... teach me?"

Li Yi'an said: "Of course, but I have a request. I need you to go with me to a shop in West Market in the near future and sing this song. How about it?"

Zhou Nan nodded without thinking, "No..."

"and many more!"

Of course she is fine, but the old bustard here is not happy, Zhou Nan is her cash cow, how can she let her go out with the people at will, if she leaves, she will not come back, what should I do?

"Who are you? You dare to take us Zhou Nan away."

The bustard looked at Li Yi'an warily.

She has been in charge of Fengyage for so many years, and she knows all the children of Chang'an's aristocratic family, but she has never met Li Yi'an.

"Do you know what happened in the Flower Garden?"

"Of course I know, they are the spies of Goguryeo."

"Then do you know who exposed those spies?"

"It seems to be a gentleman named Li Yi'an."

As soon as he finished speaking, the bustard sneered and said, "You don't want to say that you are that Li Yi'an, do you?"

"Why can't I be Li Yi'an?"

Li Yian said with a smile.

Zhou Nan's eyes lit up, it turned out that he was Li Yi'an!

She didn't doubt it, she just believed it.

A talented brothel girl like her admires those well-known talents the most, especially when she is as young as Li Yi'an.

Li Yi'an's talent is very famous, and the news of Chang'an Poetry Club has spread all over their circles, how could Zhou Nan have never heard of it, it is very surprising that the great talent is so young and handsome.

"You said you were, so that's it?"

The old procuress said with a vigilant face: "Although I don't know who you are, it's impossible to deceive our Fengyage people away. Come and drive him out!"

Some nursing homes in the brothel immediately came to surround Li Yi'an.

"what for?"

At this time, a voice suddenly came from the direction of the gate of Fengyage.

"So it's Yan Fu Yin, they want to drive me out!" Li Yi'an turned around and smiled.

Yan Ben knew that this was his chance to show off, so he stayed here all day today to check the flower shop, and just got a report from someone, Li Yian went and came back, impatiently walking over.

Yan Ben understood immediately after hearing this, and said coldly: "I suspect that Feng Ya Ge also has spies, come and investigate thoroughly!"

Those yamen servants walked in immediately, which frightened the old bustard so that his legs gave way, and he said quickly: "There are no spies, we have nothing here."

"A thorough investigation is not enough, forget it!"

Li Yi'an shook his head and said: "Yan Fu Yin is an official of the imperial court, because of my affairs, you are made to do this, I am really sorry."

"You are lucky!"

Yan Ben snorted coldly.

He still knows how to adapt to the situation, knowing that Li Yi'an just wanted to scare them.

The old bustard finally believed that the person in front of him might be that Li Yi'an.

"Lang Jun, can you come to my boudoir for a talk?"

Zhou Nan was overjoyed in his heart, and directly ignored the old bustard and offered his own invitation.

"Okay!"

Li Yian did not refuse.

Seeing Yan Ben's cold eyes, the old bustard trembled all over. She didn't even have the courage to speak, so she could only let Li Yi'an go upstairs.

The other women, who are indescribably envious, can be appreciated by Li Yi'an, and maybe they can escape from this sea of ​​suffering, how great it is!

It's a pity that I don't have Zhou Nan's talent.

After staying here for almost an hour, Li Yi'an left Fengyage and went back.

When they returned to Wannian County, Li Changge and the others walked over worriedly, obviously knowing what happened, and asked him if he was okay.

"Sir, here I come again!"

Li Lizhi also appeared in the yard, jogging over happily.

"Chengqian, Lizhi, why are you here?"

Li Yi'an said: "I'm fine, but you came to Wannian County, did you get His Majesty's consent?"

Li Chengqian said with an aggrieved face: "I sneaked out here. Aye won't let me study with my husband recently."

"why?"

Li Yi'an was curious, no wonder they hadn't been seen coming to Wannian County recently.

"Because my elder brother made a hot air balloon, it was not well controlled and almost burned down the East Palace. Mr. Kong said that what I learned is useless when my elder brother is here with my husband. I can't govern the country in the future, so Aye will not let us come."

Li Lizhi explained the matter completely.

"Lizhi, stop talking!"

If Li Chengqian wanted to stop it, he would have to face it.

Li Lizhi stuck out her little tongue, and happily ran to play with Wanshun.

Li Yi'an didn't expect this to be the reason, and this is indeed Li Chengqian's problem now, he asked: "So what are you going to do when you secretly come to my place?"

"Is such that!"

Li Chengqian took out a stack of papers from his body and continued: "I was thinking recently that the last time the hot air balloon didn't have enough firepower, it was easily disturbed by the wind when flying, so I thought, while increasing the kerosene, it can also control the fire." The amount of oil, so that you can adjust the up and down of the balloon at any time, and it will not be affected by the wind."

Looking at the blueprint given by Li Chengqian, Li Yi'an was stunned on the spot. What was drawn on it was really too detailed. The force analysis diagram and energy conversion calculation formula were all written on it. He was simply a great scientist.

For some knowledge, Li Yi'an only explained it once, and he applied what he learned, even he couldn't think of so much.

"What do you think sir?"

"Very good, the painting is not bad, no wonder His Majesty didn't let you come to me."

All these things are done, and the governance of the country is not taken to heart. It is strange that Li Shimin would let him come.

Li Yi'an also thought about it, and gradually reduced the content of teaching this aspect, but Li Chengqian just didn't like governing the country, so he had to study these.

"Sir, you haven't said how to control the fire." Li Chengqian is still struggling with this matter.

"You can get a container, put kerosene in it, and set a valve, that is, a switch, at the place where the fire is ignited, which can adjust the amount of kerosene to control the size of the fire."

Li Yi'an can only mention him.

"Yes! Why can't I think of it?"

Li Chengqian slapped his thigh hard, but asked again: "Sir, you said before that if you put gunpowder in a sealed container, the harder you press it, the more powerful it will explode. Is it true?"

"What else do you want to do?"

"I was thinking, if we are on a hot air balloon and throw those gunpowder from the air when we go to war, will the enemy be unable to stop it? No! I must get these out and try first , if possible, I will personally fight Liang Shidu.”

Hearing this, Li Yi'an fell silent.

Even the air strike was thought of by him, but Li Yi'an was a little afraid of him, and warned: "You must not tell others, I taught you these things, especially Your Majesty."

"why?"

Li Chengqian asked puzzledly.

"Because I don't want to be captured by His Majesty again."

Li Yi'an finally understood why the historical Li Chengqian broke his leg while riding a horse, because he liked to die.

In the past, Li Chengqian was a brat. After being taught for a while, he was no longer a brat, but the way he is doing now is very brutal. You don't need to think about it, and you know that something will happen to the gunpowder he made.

In case he blows up the East Palace, Li Yi'an is thinking, didn't I teach him to blow it up?Those people in Zhan Shi's mansion must not spray him to death.

This is a high-risk occupation.