Soon, the door of Li Changfeng's mansion was full of people.

It's hard for anyone to understand how the lights actually glow.

And Li Changfeng was still sleeping, and it wasn't until three o'clock in the morning that Gonggong Zhang came from the palace to deliver the decree, and he was woken up by Bingbing and Xiaotong.

After Gonggong Zhang saw Li Changfeng, he said with a smile on his face: "Your Highness, Your Majesty is invited." ”

Li Changfeng yawned and complained.

"I can't sleep well, what did my father tell me?"

"It's not because of the electric light you invented, Your Highness, Your Majesty was very surprised when he heard it, and specially asked me to invite you over."

Father-in-law Zhang was still a little shocked at this time.

When he heard about this early in the morning, if Li Changfeng hadn't done it, he wouldn't have believed anything.

Without lamp oil, without candles, how can it shine at night?

It's just a fantasy.

When he came to Li Changfeng's mansion, he deliberately stayed at the door of the mansion for a while, carefully observed the electric light for a while, and didn't understand it for a long time.

Li Changfeng was not surprised by this, everything was in his plan, but he didn't expect Emperor Qianwu to be so impatient.

Li Changfeng was not in a hurry, washed up, had breakfast, and then went to the palace with Grandpa Zhang leisurely.

When Emperor Qianwu saw him, he went straight to the point and asked, "I heard that you have made something called an electric lamp, which can emit a very bright light at night and does not need candle oil?" ”

Li Changfeng nodded: "That's right." ”

"Then why does it glow?"

"Uh...... This is more complicated to explain, do you know electricity? ”

"Electricity? What's that? Emperor Qianwu looked confused.

Li Changfeng was helpless, so he could only explain patiently.

"Let's put it this way, electricity is a ...... Well, clean energy, Erchen knows that it is difficult for you to understand the emperor, in winter, when you wear a fur coat and touch the metal, you will make a crackling sound, and you can even see electric light, it is that kind of thing. ”

"So...... You mean, that's the kind of thing that makes that light shine? ”

"That's right."

"This ......"

"It's more complicated to elaborate, which involves the principle of electromagnetism, which is simply ......"

Li Changfeng explained the principle in an easy-to-understand way as much as possible, but Emperor Qianwu was still confused.

Finally, Li Changfeng added: "This is the reason why Erchen invests a lot of money in scientific research, and he can make use of the objective laws of things by studying them." ”

Emperor Qianwu frowned and thought about it for a long time but didn't figure it out, and finally sighed helplessly.

"What you're doing now, I'm getting more and more incomprehensible."

Li Changfeng chuckled: "This is done by professional and technical personnel, it is what they are good at, what you are good at is governing the world, everyone has their own thing to do, and the emperor doesn't have to mind." ”

Emperor Qianwu asked, "But, why do I think you are good at everything, know everything, like an all-knowing and all-powerful person?" ”

"Is there one?"

"Yes!"

Emperor Qianwu got up and stared at Li Changfeng tightly, with puzzlement, amazement, and pride in his eyes, which was very complicated, and after a moment of silence, he said: "Sometimes I even think that you are a little strange, and I often think at night, are you really my son?" ”

Li Changfeng's heart tightened, could it be that the matter of soul piercing was discovered by Emperor Qianwu?

Impossible.

Emperor Qianwu is a mortal.

Even if it is an extraordinary existence, it is impossible to find it.

He was puzzled in his heart and said in surprise: "How could my father have such an idea? ”

"Think about the things you've done, the artillery, the muskets, the hot air balloons, the steam trains, the steamships, these things I can barely understand. Now that there's an electric light, I don't understand what you're talking about, and it feels as if these things don't exist in this world, as if they've been copied from another world. ”

Li Changfeng was stunned.

The industrialization process of hundreds of years in his previous life was rapidly advanced by him with his own strength, so Emperor Qianwu would be like this.

To put it bluntly, there is no culture.

Soul piercing this kind of thing Li Changfeng Natural Light would not tell Emperor Qianwu, thought for a while and said: "Father, do you believe that there is a genius in this world?" ”

"Of course I believe you, you are."

Li Changfeng shook his head: "You can think that I am a genius, and everyone in the scientific research institute is a genius." And the core personnel among them, such as Liang Dafu, Tang Yi and others, are all geniuses among geniuses, before they showed their great talents, Erchen spent a lot of money in Baishi City to train them for ten years! Without them, there would be no today's cadres. ”

Emperor Qianwu stared at Li Changfeng tightly: "I feel that you are deliberately weakening the role you play in it. ”

"Nope." Li Changfeng said with a smile, "Erchen just wants to tell his father that everything today is the accumulation of Erchen's ten years, and he realized the importance of learning from things in the process, so he tried his best to promote the reform of the education system." ”

Hearing this, Emperor Qianwu fell into deep thought, and nodded after a moment.

"You're right."

Seeing that he had successfully transferred his words here, Li Changfeng took the opportunity to add: "When the cadres become stronger, the reform of the education system must be extended to the whole country." ”

"It's inevitable."

Li Changfeng joked: "Father, you specially asked someone to let Erchen come to the palace, wouldn't it be just to tell Erchen that you suspect that Erchen is not your son?" ”

Emperor Qianwu glared at him: "I would be so boring? I'm very interested in that electric light, and I'll make a set for the palace, can't you use all the good things alone, right? ”

"That's definitely not possible, I have already prepared a set, and my son will verify it at home first, and soon install it for your father...... However, this is not going to be for you to talk about in person, right? ”

Emperor Qianwu nodded.

"That's natural, after I heard this, I thought about it, is it possible to let the entire people use electric lights?"

What Li Changfeng was waiting for was Emperor Qianwu's words, and he suddenly came to his senses.

"Of course you can, but it's a bit inappropriate to use a steam engine as a power source for power generation, in fact, it's not impossible, you can build a thermal power plant...... It's just that this will pollute the environment, and it will be good to do hydropower directly in one step......"

Li Changfeng began to introduce the principle of the hydropower station to Emperor Qianwu in as easy to understand as possible, and Emperor Qianwu was confused at first, but gradually turned into shock.

He stood up and paced back and forth in the imperial study, his mind seemed to be extremely shocked, and after a while, his eyes were firmly fixed on Li Changfeng.

"What do you mean...... Cut off a river and use water to generate it?! ”

"That's right."

"Can water still generate electricity?"

"Of course."

“…… Why? ”

"This involves another knowledge point, the potential energy of the drop......"

Li Changfeng thought for a while, and felt that it was difficult to explain these things to Emperor Qianwu, so he said helplessly: "This is difficult to explain, father, you don't need to know this, you just need to know that this can generate electricity." ”

(End of chapter)