Li Chengfeng turned to pick up the electric fan blades in his hand, and put them on the electric rotating hub.

Li Yuan also followed curiously.

Li Yuan reached out and touched the leaves of the electric fan, and said, "Grandson, you said that this thing can produce wind as long as it is rotated? But, how to rotate it? You can't turn it by hand, right? Why don't you just let Eunuch Wu give it to you?" Where are you fanning?"

"Grandpa is wrong! Eunuch Wu, show off your talents!"

"Yes, Eighth Prince!"

So, when Li Chengfeng connected the two copper wires behind the electric rotating hub, Eunuch Wu held a generating box in his hand and started to swing it manually.

"Squeak..."

The hub of the electric fan was indeed affected by the electricity, so it started to rotate?

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

"Huh? Weird!"

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

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

"It's strange, grandson, how did you make it? These are obviously a few pieces of wood, but why do they rotate automatically?"

"Hoo hoo..."

A gust of cool wind blew, and Li Yuan immediately felt refreshing.

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

Even in a stuffy bedroom with no air circulation, this thing can create wind out of thin air?

Li Yuan couldn't help but want one!

"Grandson, what is the reason for this? Why does it rotate automatically without human intervention?"

Li Yuan asked suspiciously.

And Li Chengfeng explained: "Grandpa, just as you said before! Generally speaking, the movement of any object requires external force to do work! But without external force, electricity can achieve all this! You see , I let Eunuch Wu shake the power generation box, which drove the rotation of the electric fan blades and sent out a cool breeze!"

"The first point is that through these things I invented, I converted the external force of Eunuch Wu's shaking the power generation box into electricity, and then transformed the electricity into the power of the electric fan to rotate! In this way, it is equivalent to using A small amount of work can bring great rewards! And the generator I invented is to transform the power of Eunuch Wu's work into a large energy source! Grandpa, do you understand?

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

Li Yuan rubbed the back of his head inexplicably, and couldn't help giving Li Chengfeng a blank look.

Is this kid playing tongue twister?

Why can't I understand a word?

What the **** is he talking about?

Although Li Yuan didn't understand, 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 case of wind?

It's too strong, if Li Chengfeng can use this thing on the battlefield, then it's okay?

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

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

"Of course! As long as the power is sufficient and the materials are sufficient, I can create a super electric fan!"

"The kind that can blow people away?"

"Well, let me think about it! If the power is sufficient, 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? That's okay?

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

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

"Grandpa, I know what you're thinking! You want to use the electric fan I invented and take it to the battlefield, right? But this idea doesn't work right now! Don't worry about it!"

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

"Okay, no problem, come on, 100 gold a game, I'm going to kill you today!"

"Hey, don't you give grandpa face? Well, then grandpa, I won't be polite anymore! Hmph, I don't believe it, I can't beat you in a round!"

"Come on, let's see who is the best!"

So, Li Chengfeng and Li Yuan started playing chess under the electric fan.

Li Yuan's beard swayed in the cool wind, making him feel very comfortable.

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

At the same time, inside the Datang Palace, Wenxuan Pavilion.

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

Li Shimin thought to himself, with his own father, the Supreme Emperor Li Yuan, presumably that little **** would be subdued by Li Yuanzhi. UU reading www.uukanshu.com

Anyway, Li Yuan is also a former emperor, and his aura is no joke.

When Li Yuan came out, Li Shimin was very confident that Li Chengfeng would definitely come to Wenxuan Pavilion to attend class today!

Before he knew it, he hadn't seen Li Chengfeng for a week. To be honest, Li Shimin still missed Li Chengfeng very much.

Although he is mischievous and mischievous, he is extremely smart, and he can be called a genius among geniuses at his age!

And children, it's normal to be naughty, if they are too obedient, Li Shimin will feel that this kid is obedient and worthless!

Li Shimin stroked his beard and came to Wenxuan Pavilion.

"The emperor is here!" The eunuchs on the side shouted.

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

"Long live the emperor! Your majesty, why did you come to the Wenxuan Pavilion? Regarding the solution to the 'South-to-North Water Diversion', the veteran is discussing with Liang Guogong! Since 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 in satisfaction, and said: "Well, Lord Lai, I didn't come to ask you for the engineering drawings of the 'South-to-North Water Diversion'! I just wanted to ask, the Eighth Prince, he came to your Wenxuan Pavilion for class. ?"

"Reporting to the emperor, no, during these seven days, the old minister has not even met the eighth prince, let alone, he will come to the old minister's Wenxuan Pavilion to attend class!"

"What? He didn't come?"

This little bastard, could it be that even my father Li Yuan can't handle him?

However, how did Li Shimin know that the current Li Yuan is sitting under the electric fan with Li Chengfeng, playing chess happily!

The first release of this book comes from 17K Novel Network, so you can read the genuine content for the first time!