Li Yuan stayed here for three days.

During these three days, Li Chengfeng was chipping away at wooden boards, whittling them from thick boards into thin electric fan blades.

Three days later, Li Chengfeng finally completed the electric fan blade.

Li Chengfeng drilled a small hole at the end of the electric fan blade, and locked the four leaves tightly with nuts and screws made of wooden blocks.

In this way, the blades of the electric fan are finally ready!

Li Yuan looked at the cross electric fan blades in Li Chengfeng's hand.

His eyes suddenly lit up and he said: "Eighth Prince, do you still know the wooden locks that carpenters are proficient in? You actually used wooden blocks to assemble those leaves made of wood stably?"

“If you know a little bit, it doesn’t count as proficient!”

Li Chengfeng answered. He was a genius scientific researcher in his previous life, and he could control the errors in manufacturing things within millimeters.

Therefore, Li Chengfeng was confident that as long as the Zhenwang Mansion was powered on, this wooden electric fan would be able to rotate without breaking.

"Okay, now that the leaves are done, the next thing to do is the generator!"

Li Chengfeng exchanged a handful of conductive copper wire from the system, and then used the principle of frictional electrification to make a hand-shaking power generation box.

Another three days passed.

Li Chengfeng finally finished making the handmade power generation box.

Electric fan blades, energized rotating hub, conductive copper wire, plus a manual shaking power generation box.

Li Chengfeng spent six days and finally made a complete, working electric fan.

And Li Yuan also came to the Zhenwang Mansion early in the morning to admire Li Chengfeng's masterpiece.

Li Yuan discovered that his grandson was not only smart and witty, but also loved to invent. He was truly a genius among geniuses!

But Li Yuan discovered a serious problem.

That is, although Li Chengfeng is smart, he doesn't like to study.

He didn't go to Wenxuan Pavilion to attend class, but he also punished Cheng Yaojin who asked him to attend class, and made Cheng Yaojin take the initiative to go to the execution platform and receive 100 rods?

As the saying goes, people must learn, and there is no end to learning in a person's life.

If Li Chengfeng doesn't study, once the ink in his stomach runs out, he will have no room for growth!

Li Yuan seems to be aware of this problem!

…

As soon as Li Yuan entered the hall of the Zhenwang Mansion, he found that Li Chengfeng was assembling an electric fan. Li Yuan immediately became interested.

"Hey, grandpa, you're here so early?"

Li Chengfeng turned his head and greeted Li Yuan.

Li Yuan nodded with a smile and said: "Yes, Eighth Prince, I come here to see how your invention is doing? If the electric fan is ready, then we can start the next issue, right?"

"Well, that's natural! When the electric fan is ready, we can play chess while blowing the wind! Isn't it beautiful?"

"Haha, you little clever guy?"

Li Yuan stroked his beard and smiled, and asked tentatively: "Eighth Prince, the Emperor asked you to study in the Wenxuan Pavilion of Lai Guogong, why don't you go?"

"Well...because Du Ruhui can't teach me! But the most important thing is that I don't want to play with a bunch of teenagers! Playing with them is a waste of time, a waste of energy, and boring!"

After saying this, Li Yuan suddenly frowned tightly.

Li Yuandao: "Eighth Prince, it is said that people must learn! How can you be so arrogant? If you don't learn, you will never make progress!"

"That's wrong, because Mr. Lai Guo really can't teach me! I can do everything he knows, and I can do what he doesn't!"

Li Chengfeng's nonchalant answer really made Li Yuan angry.

This little bastard really has a high heart, right?

How could he even look down upon Du Ruhui, the prime minister of the dynasty and one of the twenty-four heroes of the founding of Lingyan Pavilion?

Du Ruhui's talent was one of the best in the entire Tang Dynasty.

Even Li Yuan respected Du Ruhui three points, but he didn't want to be despised by the eighth prince?

Li Yuan immediately couldn't sit still.

So Li Yuan touched his beard and laughed.

"Hahaha...You are young and ignorant. You are indeed too young! Eighth Prince!"

Li Chengfeng turned his head and looked at Li Yuan without knowing why.

The old man laughed strangely and even startled himself.

"What are you laughing at, old man?"

"Huh? You dare to call me old man? Do you know my identity and who I am?"

A deep light suddenly appeared in Li Yuan's eyes.

Li Yuan said: "I'm showing off my cards. I won't pretend anymore. In fact, I am your grandfather, the father of Emperor Li Shimin of the Tang Dynasty, and the current emperor of the Tang Dynasty, Li Yuan!"

Li Yuan showed his cards, he stroked his beard and burst into laughter.

He originally thought that Li Chengfeng would be shocked when he heard that he had revealed his identity.

However, Li Chengfeng just chuckled and said: "Oh, then I'll show off my cards, and I won't pretend anymore. In fact, I already knew that you are my grandfather Li Yuan!"

"What? You already knew it? Who told you?"

As Li Yuan spoke, he glared at Eunuch Wu who was standing aside, as if asking, did you tell the eighth prince my identity?

Eunuch Wu was so frightened that his face was full of panic.

Li Chengfeng said: "Grandpa, don't scare Eunuch Wu. In fact, I have already guessed that you are the Supreme Emperor!"

"Then how did you know?" Li Yuan asked.

Li Chengfeng replied: "I see you, you can take a leisurely stroll every day and don't have to go to court, but you do live in the palace! Moreover, you can come in and out of my Prince's Mansion at will, and the guards don't dare to stop you! That's all right

It means that your status in the palace is that of a first-class high-ranking official! But you don’t have to go to court, but you have more power than the twenty-four princes of Lingyan Pavilion! I dare to ask the whole palace,

Besides the Supreme Emperor, who else has such power? Right? Grandpa!"

Li Yuan was stunned for a while, then he laughed and said: "Haha, my grandson is indeed very smart. When I see him today, he really lives up to his reputation!"

Li Yuan was very pleased that the Tang Dynasty could produce such a smart prince.

Moreover, Li Chengfeng is only six years old now. If he waits for him to grow up, what will happen?

The future is promising, the future is promising!

In fact, Li Shimin came to Li Yuan last night.

Li Shimin saw that Li Yuan had been running to the Prince's Mansion these days, so Li Shimin wanted to use Li Yuan's hand to persuade the eighth prince to study in Wenxuan Pavilion.

Li Yuan immediately agreed.

And Li Yuan still felt a little proud.

Because Li Yuan feels that you, Li Shimin, the emperor of the Tang and Tang Dynasties, have nothing to do with the prince? Don't you have to see me, Li Yuan, take action?

So Li Yuan came to the Zhenwang Mansion early this morning, hoping to persuade Li Chengfeng to study in Wenxuan Pavilion.

But now he looked at the proud Li Chengfeng and couldn't help but feel a headache. It seemed that this matter was much more difficult than he imagined!

Because Li Chengfeng had no intention of going to school at all.
Chapter completed!