Hearing Lu Bu say this, Huang Chengyan couldn't help laughing.

Originally, Huang Chengyan didn't say anything about Lu Bu's behavior of digging pits and setting up traps, but he was still a little disgusted in his heart.

However, after Lu Bu said it himself, Huang Chengyan suddenly felt that Lu Bu was much more pleasing to the eye.

At this moment, Huang Yueying ran into the house, and when she saw Huang Chengyan so happy, she couldn't help asking, "Daddy, what happened, are you so happy?" ”

Huang Chengyan looked at Huang Yueying and asked, "Yueying, Daddy is going to take you to live in another place, I don't know if you want to?" ”

Huang Yueying blinked her cute eyes and asked, "Daddy, then, is Brother Lu going with us?" ”

Well, I knew you were going to ask this!

Huang Chengyan nodded and said, "Of course, we are going to Wu County this time, and your eldest brother Lu is the Taishou of Wu County!" ”

Hearing Huang Chengyan say this, Huang Yueying suddenly said happily: "Great, as long as there is Daddy and Brother Lu, no matter where you live Yueying is willing!" ”

Hearing his daughter's words, Huang Chengyan was relieved and felt very sad at the same time.

Because of her appearance, Yueying really suffered with him!

……

After getting Huang Chengyan's promise, Lu Bu directly brought Dian Wei and fifty soldiers trapped in the camp to Huang Chengyan's mansion to settle down.

It took three days for Huang Chengyan to sell his family property, bringing only the tools he usually needed, and he hired three carts to pull it down.

In the past three days, Huang Yueying pestered Lu Bu all day long, chattering non-stop.

Growing up so big, except for her father, it was the first time that someone had talked to her like this, Huang Yueying was so happy.

And in three days, Huang Yueying has already regarded Lu Bu as one of her closest people!

He didn't even want to leave Lu Bu's side when he went to bed at night, so he had to sleep with Lu Bu.

In the end, it was Lu Bu who insisted on keeping a straight face, so that he could drive her back to his room.

Then, Huang Chengyan took his daughter, Lu Bu and a group of soldiers on the road.

The group went from Xiangyang to Runan and then to Xihua, and after arriving in Xihua, they directly bought a big ship and went directly down the river, all the way directly to Wu County.

However, the boat drifted very slowly on the water, and the journey took only ten and a half days and a half.

When you first get on the boat, you may feel fresh, but after a long time, you will feel very bored.

Lu Bu was still afraid that Huang Yueying, a little girl, would not be adaptable, but it was obvious that Lu Bu was too worried.

As long as Huang Chengyan and Brother Lu are by her side, she will not feel depressed.

On this day, Huang Yueying pouted and came to Lu Bu aggrievedly.

"Brother Lu, why didn't this car run away? Did I break it? Brother Lu, can it still be repaired? ”

Lu Bu said: "Can you bring it over and show me?" ”

Lu Bu took it, experimented for a while, and found that he really didn't leave.

After checking it, I couldn't help but say to Huang Yueying: "It's not broken, it's that the battery is dead." If you want it to continue running, you have to replace it with a new battery. ”

Remote control cars cost more batteries, these days Huang Yueying is novelty like something, she has to play every day, no wonder there is no power in a few days.

Huang Yueying pouted and said, "Brother Lu, what do you mean that the battery is dead?" Also, how can I replace the battery? ”

Lu Bu buckled the battery baffle under the remote control car, deducted the battery inside, and then said to Huang Yueying: "Yueying, look, this is called a battery." There was no power in it, and a new battery had to be replaced to keep the car running. ”

When Lu Bu explained, Huang Chengyan couldn't help but be attracted.

Huang Chengyan's curiosity about remote-controlled cars is not lower than that of Huang Yueying.

I still haven't figured out why the RC car runs on its own.

Hearing Lu Bu's explanation, Huang Yueying didn't understand it even more, and couldn't help asking, "Brother Lu, what is electricity?" Why is it that with electricity, cars can run? ”

The question is so profound and complex that it is difficult to explain.

But Lu Bu had to try to explain it, because in the next few years, they would be exposed to this knowledge.

Lu Bu couldn't help but say, "Yueying, did you ever see thunder in the sky in the summer?" ”

Huang Yueying couldn't help nodding and said, "Brother Lu, of course Yueying has seen it, what Brother Lu means is that the electricity in this battery is collected in the thunder?" ”

What a smart little girl, although the guess is not correct, but it is clear at all.

Lu Bu patiently explained: "The function of this battery is that it can be discharged outward, although the electricity inside is not thunder and lightning, but their properties are the same!" ”

"Electricity is a type of energy, and this energy can be converted into kinetic energy. It may sound complicated, but the principle is the same as the Trojan horse you made. Let's say your Trojan needs to be wound in order for it to run. ”

"But what about this remote-controlled car, it can do the function of self-winding through electrical energy. Now do you understand? ”

Huang Yueying looked at Lu Bu seriously, and then shook her head.

Lu Bu couldn't help laughing, if you can understand, then it's wrong!

Then Huang Yueying said again: "But Brother Lu, I think I can probably understand what it means." ”

This sounds very awkward, but Lu Bu actually understands what Huang Yueying wants to express.

Huang Yueying then asked: "Then, Brother Lu, how did this car do it if it can emit light and make sound?" Oh, I see, light and sound are the same as thunder? Can it shine and make a sound? But why is this sound different from thunder? ”

This explanation is too complicated, and the main problem is that in fact, Lu Bu himself is half-understood, and it is not easy to explain.

Lu Bu had no choice but to say: "Yueying, this principle is very complicated, and Brother Lu doesn't understand it very well. But once you've read the notes, you'll understand! ”

Huang Yueying nodded and said, "Well, okay, by the way, Brother Lu, after I read the book, can I make a car?" ”

"This ......" Lu Bu groaned and said, "Brother Lu believes that you will be able to make it!" ”

"Not only do you want to make this kind of small toy, but Brother Lu also hopes that you can make a big car, a car that can pull people to run by themselves!"

Huang Yueying nodded heavily and said, "Brother Lu, don't worry, Yueying will definitely make a big car for Brother Lu!" ”

Huang Chengyan couldn't help but ask: "Feng Xian, can you really make a car that can pull people to run by themselves?" ”

Lu Bu nodded and said, "Not only is it a car that can run on its own, but even an airplane that can fly into the sky with people can be built!" ”

Huang Chengyan couldn't help laughing and said: "How is it possible to fly a plane that can fly into the sky?" ”

Lu Bu Zhengse said: "Mr. Chengyan, do you know why the water flows to a low place? Do you know why there are four seasons all year round? Why do you see lightning first and then hear sound when thunder? ”