At the beginning, Emperor Yang of Sui was kidnapped

Chapter 286 Electromagnetic Induction Phenomena
Whampoa Military Academy.

Wang Zhao is here again.

This time, of course, he came with a report card.

In the classroom, 19 people sat very upright.

For fear of causing Wang Taisui's displeasure.

After all, Wang Taisui is a person who pays great attention to etiquette and appearance.

Once Cheng Yaojin was beaten by Wang Taisui many times because he didn't pay attention to his appearance.

"The results of this assessment have already come out."

Wang Zhao glanced down. Everyone was sitting upright, with their hands folded flat on the table, their heads held high, and their eyes looking forward.

Very standard class etiquette.

"My lord said that the top three of them will graduate directly! After winning the title of outstanding graduate, after the year, they will be approved to leave the mountain and lead the army to fight!"

He spoke the second sentence.

Everyone's breathing became rapid.

Let's be honest, everyone wants to get out.

After all, he learned martial arts and sold them to the emperor's family.

They have learned dragon-slaying skills, if they can't even get out of the mountains, how can they make achievements?

How does the world know about them?

Everyone braved a lot of energy and wanted to get out of the mountain.

But there are only three places, each based on strength.

Afterwards, Wang Zhao began to announce the top three: "This assessment, No.3, Pei Xingyan!"

Immediately aroused the envy of everyone around.

Pei Xingyan was also very pleasantly surprised and clenched his fists excitedly.

"Father, the child is finally coming out of the mountain!"

He disappeared in Luoyang for half a year.

He felt that his father must have gone crazy looking for him.

In the past, he was mediocre, only brave, but he felt that now he could shoulder the important task of expanding the territory for Wanmin City!
In the past six months, he has studied hard and learned experience from the master's various textbooks.

It is also to deduce the sand table with other people and simulate actual combat.

Except for Su Dingfang, who is no match for him, speaking of it, he is not afraid of anyone on the deduction sand table!

Right now, he still doesn't know...

After he left, Pei Renji looked for him symbolically for two days.

Not long ago, he and his first wife gave birth to another son.

It was named Pei Xingjian.

He is his younger brother and the prototype of Pei Qinhu in history.

Wang Zhao glanced at the excited Pei Xingyan.

Pei Xingyan felt a chill in his heart, sat down quickly, and folded his hands flat.

Almost carried away.

Only then did Wang Zhao announce the next person: "No.2, Shan Xiongxin!"

Similarly, Shan Xiongxin couldn't control his excitement...

"Shiji, we can finally fight side by side!"

He and Xu Shiji are close friends.

At the beginning, we agreed to join the Wagang village after falling grass as a bandit.

But later Xu Shiji took off alone, and his reputation grew stronger and stronger.

And he was left behind by his companions and became unknown.

He braved all his energy and wanted to catch up.

……

After the announcement of two places.

Both are down to the last spot left.

The remaining 17 people looked at each other in blank dismay.

Very nervous.

Wang Zhao didn't make any suspense, and read directly: "No.1, Su Dingfang!"

Su Dingfang clenched his fists tightly, his lower lip was about to bleed.

at last……

He succeeded!

At this moment, he was more excited than anyone else.

Because, he can finally go out to conquer the world and avenge his adoptive father!
"Turk, I, Su Dingfang, will definitely destroy you in my lifetime!"

Su Dingfang made a vow to himself in his heart.

"My lord has ordered that from today onwards, the Whampoa Military Academy will be on vacation and no classes will be held. After Shangyuan, those who have not graduated will be taught again!

Then, Wang Zhao announced an exciting news.

Closed military management has been lifted.

for a while...

Those who were not approved to leave the mountain also became in a better mood.

Especially Cheng Yaojin, with a particularly loud voice, said carelessly: "Let's go! I've been in Wanmin City for half a year, and I haven't visited this city seriously. I'm going to Xianweiju tonight, and I won't go home until I'm drunk!"

Others naturally raised their hands in applause.

They were suppressed for half a year.

Finally found a chance to release it.

……

graduate School.

The reason why Xu Mu didn't announce the answer is mainly because the research institute has finally produced results.

At this time, he was standing in front of a simple hand crank.

"My lord! According to what my lord said... the phenomenon of electromagnetic induction, we spent eight months researching this thing, but I don't know... whether it can produce the electricity your lord needs..."

A gray-haired old craftsman explained beside Xu Mu.

A box was placed in front of Xu Mu.

Outside the box is a hand crank handle.

Inside the box are the magnets and exposed copper wires requested by Xu Mu.

According to electromagnetic induction, as long as the magnetic flux passing through the closed circuit changes, an induced current will be generated in the closed circuit.

but……

The electric current of the hand crank is extremely weak.

It's hard to even spot.

So after completing this device, these craftsmen were not sure whether they succeeded or not.

So Xu Mu was called here.

Xu Mu pondered for a while, then asked someone to find some shredded paper, and put them all outside the box, one inch away from one of the copper wires.

"Start shaking!"

After Xu Mu ordered, a middle-aged craftsman immediately held the handle...

Start shaking vigorously.

Not long after, a surprising scene appeared...

Those shredded papers, apparently separated by an inch from the copper wire, were pulled by some kind of force, slowly rose, and stuck to the copper wire!
All the craftsmen were shocked.

Can't understand why this is so.

Although Xu Mu explained the phenomenon of electromagnetic induction to them, and they worked out this thing according to the principle, but...

After all, there is no popularization and learning of theoretical knowledge.

They don't understand that a small amount of current can absorb fine dust and thin pieces of paper.

"The current has been generated!"

Seeing this scene, Xu Mu also showed joy.

I have to say, this is a huge breakthrough!

The next thing to do is to increase the current.

Now under the condition that the magnetic field and the cutting direction remain unchanged, the DC current is still generated.

But if the voltage is not enough...

Even if the light bulb is out, it can't be turned on.

"The light bulb should be easy to solve, but the vacuum pumping technology can't solve it..."

Immediately afterwards, Xu Mu discovered several more problems.

For example, you need to find a way to increase the voltage.

Secondly, the light bulb is made of tungsten wire, and the electric energy is passed through the tungsten wire, and the thermal resistance effect is used to convert the electric energy into heat energy, thereby emitting light and heating.

But... unable to evacuate and seal, it will cause rapid oxidation of the tungsten wire.

become non-conductive!
"The light bulb should also increase the schedule, and try to find a way to seal it with glass to prolong its service life!"

"There are also copper wires, which have been exposed all the time, and things like plastic must be quickly refined through things like resin!"

Xu Mu took a deep breath and began to give orders to these craftsmen.

He re-directed a direction, saving these craftsmen the time to think about it.

What needs to be done now is to keep improving.

After releasing the task, just when Xu Mu was about to leave the research institute...

I was seeing a little girl over one meter tall hiding in a corner, looking at him curiously.

Xu Mu was a little dazed at first.

It took a while before he reacted.

Isn't this the baby girl he adopted back then?
Are they all this big?

Looks like about ten years old.

And judging by his looks, he shouldn't be bad when he grows up.

She was looking at herself curiously, but she didn't dare to approach her.

"Lin Qingcheng?"

Xu Mu lowered his body and waved at her, motioning for her to come over.

"you know me?"

She blinked, not afraid of strangers at all, and walked towards Xu Mu.

She has lived in the institute since she was a child.

Surrounded by craftsmen doing all kinds of research.

She is familiar with all of them.

Xu Mu was the first outsider she met.

Xu Mu smiled slightly.

He had hugged her when he was a child.

"I came here in a hurry this time. I didn't bring you a gift. Next time I come, I'll bring you something nice."

Xu Mu moved his mind, touched her little head, and left the research institute under her suspicious gaze.

When he brought Lin Qingcheng to the research institute, he mainly wanted her to learn knowledge such as physical chemistry.

After she completes her studies, she will use her hands to teach the new students in Wanmin City.

With a single spark, a prairie fire is formed.

Dispel the ignorance of this age.

……

After leaving the institute, Xu Mu returned to Xiaoyanglou.

After eating, I began to prepare and plan new teaching materials.

After thinking about it again and again, Xu Mu wrote four words on a piece of pure white jade paper: Natural Science.

She is only ten years old.

The world is not known yet.

It is the most plastic period.

At the beginning, Xu Mu wrote down the knowledge that scholars of this era cannot accept.

"We live on a sphere."

It directly broke the theory of the round sky and the earth.

Then, it discussed why it rains in the sky, why there is lightning, and why there is thunder.

For some natural phenomena, a new explanation was made.

It took more than half a day for Xu Mu to finish writing the thirteen chapters of the course.

These are very normal and easy to accept for him, but for people of this era...

But it was a subversion!
Throughout history, Xu Mu reckons that only that lunatic in the Ming Dynasty, Li Zhuowu, who dared to criticize the emperors of all dynasties, dared to accept this new theory.

Of course, there is still Lin Qingcheng who is as white as paper.

……

After writing the thirteen chapters, Xu Mu walked out of the small western building.

Go to the Lord's Mansion for inspection.

Mainly to supervise the work of these employees under his command.

See if they are fishing.

Fortunately, everyone is doing very well.

All work is proceeding in an orderly manner.

then……

Xu Mu found Lao Yang again.

"The research institute has made a new breakthrough and plans to build a row of street lights on both sides of the streets in the city."

"Street lamp?" Lao Yang was a little puzzled.

Then Xu Mu gave the sketch he had drawn.

Just let him build it directly.

And underground, it is necessary to prepare for the laying of lines.

After the plastics are researched by the research institute, the exposed copper wires can be wrapped with a layer of plastic for insulation.

He can lay it out ahead of time.

Just wait until the Institute gets the voltage up...

"I hope that on New Year's Eve, we can maintain the daylight all night!"

Xu Mu wanted to surprise the [-] people in Wanmin City.

I can only hope that the technology of the research institute will be improved to slow down the oxidation speed of the tungsten wire.

(End of this chapter)