Chapter 258

Lee forgot her worries, make complaints about her reliable boss, but suddenly she was stiff.

After half a ring, he whispered, "Changqing, do you remember the content about generators in middle school physics?"

Su Changqing was also stunned when he heard the speech. After thinking for a while, he replied uncertainly, "it seems that when a conductor cuts a magnetic induction line in a magnetic field, it will produce an electric current? Is that so?"

Li forgot to worry, nodded and swallowed a mouthful of saliva: "it seems that Datang is also a magnet..."

His words made Su Changqing couldn't help covering his mouth with his hand for fear of screaming.

After hesitating for a long time, Su Changqing carefully asked, "do you mean? We can make our own generator in Datang? Charge our mobile phones?"

Li Qieyou was not sure. He nodded and shook his head: "I can't remember clearly. That's middle school physics knowledge. My physics is very general! Otherwise I will only be admitted to two universities? Changqing, you are a top student at the University of Pennsylvania. Should you?"

Su Changqing glared at him angrily: "I'm a liberal arts student!"

These words made them stare at each other for a long time. For a long time, Su Changqing couldn't help laughing.

"Forget it, no electricity, no electricity."

Li's stubbornness came up: "no, I have to try! I don't believe I can't get a simple generator."

In Datang Power Generation 1300 years ago, it sounded mysterious.

Even Lee forgot himself, and he was tucking in his heart. How could he make complaints about YY's flavor?

But after careful consideration, it seems that it is not impossible.

He remembered that the chubby physics teacher demonstrated the structure and function of a hand-operated generator to them in junior high school physics class.

That is, the coil rotates in the magnetic field. It seems that it can generate electricity. The principle is not complicated at all.

When shaking the handle of the generator and driving the small bulb to light up, it was magical and impressive to Li Qieyou, who first came into contact with physical knowledge.

In fact, if there is Du Niang in Datang, after Baidu, it will make a simple hand-operated generator to charge the mobile phone. It can't be simpler. Even high school students have many students with strong hands-on ability to do it.

But Li forgets to worry about a learning scum and Su Changqing is a liberal arts student. It is not easy to make a generator that can charge mobile phones in Datang.

They know the principle of the generator, but how to cut the magnetic coil to produce current is a very technical problem.

Li forget worry said that Datang has a magnet, in fact, it is wrong.

Magnets are made by modern technology. In ancient China, only natural magnets can be used.

Magnet, also known as Ci stone, magnet and basalt. In Datang, it's easy to buy natural magnets. They are sold in major medicine stores!

No mistake, natural magnet is a kind of traditional Chinese Medicine

It tastes salty and cold. Return to meridians, liver, heart and kidney meridians. Indications: it is used for palpitation, insomnia, dizziness, dizziness, tinnitus, deafness, kidney deficiency and asthma.

It is recorded in compendium of Materia Medica.

In any case, Li Qieyou plans to try. It would be great if he could really build a starting motor and charge his mobile phone.

He ordered Niu Wu to buy a large piece of natural magnet from the medicine shop and copper wire from the jewelry shop. Li forgets worry and is ready to start middle school physics experiment class in Datang.

Together with Su Changqing, they racked their brains to recall the physics knowledge of junior high school and senior high school. Several drawings were drawn, but neither of them felt sure.

"Try again." Li Qieyou stretched out and asked Niu Wu to help him invite carpenter Liu to prepare for work.

He and his beautiful boss recalled that the structure of the starting motor was composed of a rotor and a stator.

The stator is composed of a fixed ring on the outside, which is wound with copper wire. The rotor is in the middle of the stator, and a magnet is installed on it. It can rotate with the handle and generate current after rapid rotation.

The principle seems very simple, but neither of them has really operated, so they can only experiment slowly.

And even if we can get the motor, it is unknown whether we can charge the mobile phone.

However, Li forgets to worry. Anyway, the boredom of leisure and the temptation to use his mobile phone make him full of energy.

It was said that Huxian man asked himself to help again. Without hesitation, carpenter Liu in the village left his work and followed Niu Wu with a full set of things.

When he took the drawing drawn by Li forgetful sorrow, he couldn't understand what it was doing. However, carpenter Liu did not dare to ask more. In short, he would do whatever Li forgot to worry about asked him to do.

In the view of the farmers in Dingzhou village and carpenter Liu, Li forget worry is definitely an immortal in the world.

Carpenter Liu, in particular, believed this even more after he helped Li forget worry to drum up a waterwheel and a four-wheel carriage.

Even at home, carpenter Liu secretly offered Li forgetful's memorial tablet. He burned incense and prayed every day, completely worshipping Li forgetful as an immortal.

If Li forgets to worry about this, I don't know if he will spit blood three liters

Fortunately, Li forgot to worry about what carpenter Liu had done to mark his memorial tablet. Otherwise, he could not point out that there would be a murder in Huxian man's residence today.

After making trouble for most of the day, Li forgets to worry, but he doesn't feel irritable. Without the interference of mobile phone, computer and network, it doesn't seem boring to concentrate on doing one thing.

Carpenter Liu's craftsmanship is also really good. He made the main structure of the hand-operated generator out of wood only by virtue of an unclear sketch drawn by Li forgetful.

Li Qieyou shook the handle with satisfaction and looked at the inner rotor running freely. Now it's time to wind copper wire around the stator.

After a few twists, Li forgot to worry, but stopped again and took off the copper wire again.

The beauty boss asked, "forget your worries, what's the matter? What's the problem?"

Li forgot to worry and shook his head: "no, I suddenly remembered that it seems that the effect of using silver wire is better, as if silver is the metal with the best conductive effect?"

The beauty boss followed the memory for a long time before nodding. It seems so.

Therefore, the copper wire just bought by Niu Wu was abandoned. Li forgetful sent him to the jewelry shop in Huxian county to buy silver wire for himself.

Although silver is not a common currency in Datang, it is also very common.

It is very common to make ornaments and utensils. Naturally, there was no shortage of gold and silver in the jewelry shop. Niu Wu didn't spend much effort, so he bought a lot.

The pure handmade silver silk is not comparable to that processed by later industries, but it is also quite exquisite. Li Qieyou can only say a big word about the exquisite craftsmanship of Tang craftsmen.

Seeing that Li forgets to worry about winding the silver wire around the stator, the beautiful boss shouted at him.

"Wait, forget your worries. Why do I seem to remember that when I was in physics class, it was a wire wrapped around the stator?"

Li Qieyou didn't understand: "yes? Datang has wires? Just use copper wire or silver wire instead? What's the matter? Is there a problem?"

"Stupid, insulated! Isn't the wire insulated? You wrap the silver wire directly. How can you do without insulation."

What the beauty boss said made Li forget his worries and be stunned. It seems so

Pit father, this Datang, where can he find insulated wires?