Li Chengfeng turned to pick up the electric fan blade in his hand and put it on the electric rotating hub.

Li Yuan also followed curiously.

Li Yuan stretched out his hand and touched the leaves of the electric fan and said: "Grandson, you said that this thing can produce wind just by rotating it? But how to rotate it? You can't turn it by hand, right? It's better to just let Eunuch Wu do it.

Where are you fanning yourself?"

"Wrong grandpa! Eunuch Wu, show your talent!"

"Yes, the Eighth Prince!"

So, when Li Chengfeng connected two copper wires to the power rotating hub, Eunuch Wu held a power generation box and started swinging it manually.

"Zhizhi..."

The hub of the electric fan was indeed affected by electricity and started to rotate?

"Yeah, grandpa, look, I succeeded! I successfully invented the electric fan in the Tang Dynasty!"

"Huh? That's weird!"

Li Chengfeng jumped up and down excitedly, but Li Yuan's eyes widened.

The blades of this electric fan made of wood can actually rotate?

"It's weird, grandson, how did you make this? These are obviously just a few pieces of wood, so why do they rotate automatically?"

"Huhu..."

A gust of cool wind blew, and Li Yuan suddenly felt a refreshing feeling.

Good guy, if you have this thing, you won't be afraid in the hot summer.

Even in a stuffy bedroom with poor air circulation, this thing can create wind out of thin air?

Li Yuan couldn't help but want one!

"Grandson, what's the point of this? Why does it rotate automatically without human intervention?"

Li Yuan asked doubtfully.

Li Chengfeng explained: "Grandpa, it's just like you said before! Generally speaking, the movement of any object requires external force to do work! But in the absence of external force, electricity can achieve all this! You see

, I asked Eunuch Wu to shake the power generation box, which caused the blades of the electric fan to rotate and create a cool breeze!"

"The first point is that through these things I invented, I converted the external force of Eunuch Wu to shake the power generation box into electricity, and then converted the electricity into the power to rotate the electric fan! In this way, it is equivalent to using

A small amount of work can lead to a big reward! And the generator I invented is to convert the power of Wu Eunuch's work into a large energy source! Grandpa, do you understand?"

"Uh...this, this..."

Li Yuan touched the back of his head without realizing it, and couldn't help but give Li Chengfeng a rollicking look.

Is this kid playing tongue twisters?

Why can’t I understand a word I say?

What on earth was he talking about?

Although Li Yuan didn't understand it, he still thought it was amazing.

After all, Li Chengfeng's invention of the electric fan has overturned Li Yuan's three views.

Is this simply a surprise?

It's too powerful. If Li Chengfeng can use this thing on the battlefield, what's the point?

Thinking of this, Li Yuan's heart suddenly skipped a beat.

Li Yuan quickly asked: "Grandson, may I ask, can you make a bigger electric fan?"

"Of course! As long as there is enough power and enough materials, I can make a super electric fan!"

"The kind that blows people away?"

"Well, let me think about it! If there is enough power, it should be possible! But, in this case, it seems a bit difficult! Because there is no material!"

Li Yuan thought to himself, his grandson actually has a way to make an electric fan that blows people away? Is that okay?

"Grandson, tell me, what materials do you need? Grandpa, I will find them for you right now!" Li Yuan said hurriedly.

"Oh, don't worry, that thing is called plastic, you guys are useless, you can't get it!" Li Chengfeng responded.

"Grandpa, I know what you are thinking! You want to use the electric fan I invented to bring it to the battlefield, right? But this idea is currently unworkable! Don't worry about it!"

"Oh, that's right. Grandpa is impatient! Forget it, grandson, your electric fan has been repaired. Let's play chess today, okay?"

"Okay, no problem, come on, 100 gold per game, I'm going to kill you today and leave no stone unturned!"

"Hey, you don't want to give grandpa face, right? Well, grandpa, I won't be polite anymore! Humph, I don't believe it, I can't beat you in a single round!"

"Come on, let's see who is better!"

So, Li Chengfeng and Li Yuan began to play chess under the electric fan.

Li Yuan's beard was swaying in the cool breeze, which was very pleasant.

Eunuch Wu was shaking the generator at the side. Although he was sweating profusely due to the heat, when he saw the Supreme Emperor Li Yuan and the Eighth Prince Li Chengfeng having a great time, Eunuch Wu also showed a happy smile on his face.

…

At the same time, inside the Wenxuan Pavilion of the Tang Dynasty Palace.

Li Shimin had nothing to do today. After reviewing the memorial, he planned to come to Wenxuan Pavilion to see if the little guy Li Chengfeng was attending class there!

Li Shimin thought to himself that with his father, the Supreme Emperor Li Yuan, taking action, that little bastard would definitely be subdued by Li Yuan.

After all, Li Yuan was also the former emperor, and his aura was no joke.

Li Yuan took action, and Li Shimin was very confident, thinking that Li Chengfeng would definitely come to Wenxuan Pavilion for class today!

Unknowingly, it had been a week since he saw Li Chengfeng. To be honest, Li Shimin still missed Li Chengfeng quite a bit.

Although he is a naughty and naughty child, he is extremely smart and can be said to be a genius among geniuses at his age!

And for children, it’s normal for them to be naughty. If they are too obedient, Li Shimin will think that this child is just following orders and has no future!

Li Shimin touched his beard and came to Wenxuan Pavilion.

"The Emperor has arrived!" the eunuch on the side shouted.

In Wenxuan Pavilion, Du Ruhui, who was in class, hurried out to greet Li Shimin.

"Long live the Emperor! Your Majesty, why are you here in Wenxuan Pavilion? Regarding the South-to-North Water Diversion Plan, I am discussing with Duke Liang! Because the project is too large, it may take some time to give the Emperor a perfect answer to the project!"

Du Ruhui said respectfully.

Li Shimin nodded with satisfaction and said: "Well, Mr. Lai Guo, I didn't come to you to ask you for the engineering drawings of the South-to-North Water Diversion Project! I just wanted to ask if the Eighth Prince came to your Wenxuan Pavilion for class.

?”

"Reporting to the emperor, no, during these seven days, I have not even seen the Eighth Prince, let alone that he will come to my Wenxuan Pavilion for lessons!"

"What? He didn't come?"

This little bastard, could it be that even my father, Li Yuan, couldn't handle him?
Chapter completed!