If you want to say that the hand-cranked generator, in fact, the principle is very simple, that is, the closed coil rotates in the magnetic field, and the electromagnetic induction phenomenon is used to generate induced current.

After Tang Ping explained the principle, these students of the new school hall exploded, but they didn't expect that they would be able to generate electricity.

So a group of people started to build their own hand-cranked generators.

Then I felt that the hand crank was laborious, thinking that the keel waterwheel could be pedaled with my feet, and after seeing Li Bai's mountain bike, a group of people decided to make a pedal generator directly.

In fact, if Tang Ping wants to buy this kind of thing from the Internet, it is very easy, but he thinks that if it is popularized, he can only let the people here study it themselves.

After all, although he can shop online, he has to wait for nearly an hour to shop online, and the volume of things cannot exceed his small warehouse.

If he wants Datang or Chang'an to use electricity, his sleepless online shopping generators are not enough.

So the best thing to do is to make it yourself in Datang.

Cheng Zhijie was led to something similar to a bicycle and asked curiously, "This thing can really generate electricity?"

"It shouldn't be a big problem!" It was Tang Ping who spoke, and these melon cowards had made a generator, so they naturally had to notify Tang Ping to come and have a look.

"I've seen Fang Xiang, I've seen General Cheng!" Tang Ping arched his hand.

"No need to be polite, how does this thing generate electricity? Just go up and step on it?" Cheng Zhijie was a little unconvinced.

"That's it!" Cheng Chu sat on it silently, and then was pinched by Cheng Zhijie's neck.

"Come down, let the old man try it, and only then will I know if you guys are fooling me."

Under the suppression of the bloodline, Cheng Chumo could only obediently come down and give up his position to Cheng Zhijie.

"Just step on it hard?" Cheng Zhijie confirmed again.

Tang Ping helped check it, nodded, and explained: "Here is the generator, here are the voltage regulators they have built, and the DC lights connected to this should be fine."

While speaking, Cheng Chumo and the others had already pulled up the thick curtains hanging in this classroom, and the whole room darkened all of a sudden.

Cheng Zhijie also began to step on it hard, and there was some blockage at first, but after stepping on it for two laps, the speed increased.

"It's on, it's on!"

(This chapter is not finished, please turn the page)

Cheng Chumo and the others were excited, and at first they made a very small hand-crank, which could only light up a small neon bubble.

Press the large enlarged one, they also made it just now, but they didn't expect the bulb to light up the first time they used it.

Cheng Zhijie could also clearly feel that the room was lit up, and while stepping hard, he turned his head to look at the glowing light bulb.

Soon he found that the faster he stepped on it, the brighter the bulb became, and of course when the brightness reached a certain level, it became more stable.

"Daddy, Daddy, are you tired? Let the child step on it!"

"Tired...... Tired...... What? You're your father's general...... Be...... Was it given for free?" Cheng Zhijie was out of breath and didn't want to come down, so he felt that the light bulb behind him was on, which was very comfortable.

Tang Ping couldn't stand it anymore, and said with his forehead raised, "General Cheng, why don't you take a look at the new things I made?"

"And fresh...... Something new?" Cheng Zhijie finally stopped: "Okay, let's go and see, otherwise I can step on it for an hour or two."

Cheng Chumo and the others wanted to continue, but they were all stopped by Tang Ping.

"Okay, I've told you, if you want to learn to use the power of nature, come with me!"

After Tang Ping finished speaking, he opened the door first and went out.

Cheng Chumo and the others glanced at the generator with pity, although they were reluctant, but Tang Ping said that there must be something good, and they still have to go and see it first.

Tang Ping had just heard that a few people had made a pedal generator, and he happened to ask Wang Tieniu to give him something new, which had already been moved to the outside of the new school hall.

"What is this?" Cheng Zhijie and Fang Xuanling looked at a large lump of things pulled on a board cart and asked.

"This should be called a steam engine."

"Daddy, do you know steam? When boiling water, the water droplets on the lid of the pot are small droplets formed by the water vapor after it is pre-cooled."

Cheng Chumo gave Cheng Zhijie popular science on the side, and then took a brain from his father.

"I don't know, you don't know to tell me quietly?"

Tang Ping rarely paid attention to this pair of living treasures, and pointed to some of them and said, "This place is actually a boiler, which uses coal to boil water and provide energy."

Isn't there a joke?

boil

(This chapter is not finished, please turn the page)

Is water the primary productive force? The essence of human energy evolution is "fancy boiling water".

It's a joke, but it's basically true.

But for Cheng Zhijie and Fang Xuanling, this is equivalent to a fantasy.

"Can boiling water really call?" Li Shimin said it once just now, but the two didn't believe it, thinking that he was playing with himself.

Now that Tang Ping is saying so again, it is probably true.

"Actually, the principle is to use the steam generated by boiling water to push the piston." Tang Ping tried his best to be simple, these two people had never studied in the new school hall, and they were about to directly say that they would definitely not understand the principle.

"General Cheng and Fang Xiang have seen that after the boiling water is boiled, the lid of the pot will be lifted."

"Naturally, I've seen it, if the lid of the pot is tight after the water is boiling, it will pop." Fang Xuanling suddenly realized: "So the lid of the pot is up, and it is the steam you said is pushing!"

When Cheng Chumo explained to Lao Tzu what steam was just now, he heard it clearly next to him.

"That's right, so you look at my boiler, it's sealed here, and when the water boils underneath, the steam can't get out, so you can only push the piston up on it, and when the piston is pushed up, the hot steam is let out, and the piston falls again, and so on."

Before this, the reason why Tang Ping did not engage in steam engines was mainly due to the raw materials, if it was firewood, the efficiency was too low.

Now with coal, it's different, you must know that the earliest trains were all coal-burning.

Cheng Zhijie looked at a transmission rod connected to the piston and understood: "As long as this rod is connected to the pedal that I stepped on just now, no one needs to step on it, right?"

In his heart, he secretly complained about Tang Ping, this kid, just now when he saw that he was as tired as a dog, he said that there was such a thing, and he completely forgot that he was unwilling to step on it just now.

"Yes, this is the steam engine, according to this principle, all machines that use manpower, wind power, storage power, and water power can actually be driven by it!"

You must know that the first industrial revolution was marked by the widespread use of the steam engine.

"Then this Rausch machine, someone paid to buy it, Tang boy, you just say how much it costs!"

(End of chapter)

To provide you with the fastest update of the great god Mu Chenyuanzhi's "Datang Convenience Store", in order for you to view the fastest update of this book next time, please be sure to save the bookmark!

208 Boiling water is the first productive force to read for free.