Let you teach, you play games with the worst class?

Then they had a great time playing with the flywheel fire tool made by Wang Shanhai.

At the same time, I still want to continue to imitate some.

However, he fell into a little embarrassment when opening holes in the stone.

It is really difficult to make holes in the stone without the right tools.

Seeing this, Wang Shanhai smiled, and then remembered the solution given by Ren Yan:

"If you're not in a hurry, you can find some clay and make a clay disc with a hole in the middle."

"After drying, it can completely function as a stone disc."

Hearing this, Wang Bo and the others were stunned for a moment.

me? !Can you still play like this? !

At this moment, they were deeply aware of their own shortcomings, and they all cast admiring gazes at Wang Shanhai.

Jieren is not an ordinary person!

Wang Shanhai stood up very well.

Look, my son has started to worship him!

...

At the same time, in the live broadcast room.

Netizens are also very excited to see:

"Mom! I learned something in the live broadcast!"

"This pig-headed man is still very strong, he has already played tricks on making fire by drilling wood!"

"What a god, a pig-headed man, is Bajie okay?!"

"Yes, no, Class Nine's outing has begun to show results!"

"Damn... just watched and reviewed the inertia, this live broadcast is poisonous!"

"Sure enough, those who can play with Teacher Ren are not normal people..."

"Maybe this is like attracting birds of a feather? (dog head)"

"Look, you can also learn the use of idioms in the barrage, and you really are not a serious person! (dog head)"

However, while the netizens were having fun.

Wang Bo's place in Longtoushan Mountain.

Wang Shanhai, who was proud of himself, heard an unusually abrupt sentence.

"Actually, there is an easier way..."

Chapter 85 Learn Mathematics, Physics and Chemistry【Seek further reading, collection, monthly pass, recommendation】

"Actually, there is an easier way."

With the appearance of these words, a young man with a serious and upright dress came out from behind.

"Wang Yu?" Wang Bo recognized the person immediately.

"Isn't your class one below? How did you run up?"

"Our class is building a camp, and my tent has been finished. I'm bored, so I'll come and see your class nine."

Wang Yu replied formally, then smiled:

"Sure enough, your ninth class is as interesting as I thought."

"It's really a teacher's style to create difficulties for yourself through outings, and then use your own knowledge to solve them."

"Even if you have style, it's still the head teacher of Class Nine, so don't make up your mind."

Hearing Wang Yu's words, Wang Bo's heart tightened for no reason, and he immediately looked at him vigilantly.

This grandson still doesn't give up on his homeroom teacher~

You must be on guard!

"You don't have to guard against me like you guard against thieves. I just want to experience the joy of learning with you." Wang Yu shook his head helplessly, spread his hands, and signaled his innocence.

Wang Bo and the others looked at each other and relaxed a little.

After the last 'cooperation', Wang Bo and others also know Wang Yu's style, and generally they still say that one is one.

But even so, at most they allow each other to play occasionally.

But if the other party really intends to abduct Ren Yan to the first class, then they still have to resolutely resist it for a while.

"What is the simpler method you just said?"

After the atmosphere eased a little, Wang Bo asked his doubts.

"Battery." Wang Yu replied naturally.

Then he walked to the pile of sundries in class [-], picked up a scattered battery, and then pointed to the pocket containing the sundries and asked, "Can I take a piece of wire from it?"

Wang Bo nodded, but then felt something was wrong: "How do you know we still have wire?"

"You've almost surrounded yourself with wire, and no one can see it." Wang Yu laughed noncommittally, and looked down at the wire.

This made Wang Bo on the side slightly embarrassed.

Ma De, I was careless, I forgot that I asked my classmates to make fences before!

Not long after, Wang Yu took out a small section of wire from the sundries, and looked at Wang Bo and others.

Then, under the watchful eyes of Wang Bo and others, he took out some toilet paper from his pocket and wrapped it around the middle part of the wire.

The other two are directly pressed on the positive and negative poles of the battery.

After three seconds.

The toilet paper in the middle of the wire immediately burned.

Looking at the almost instantaneous flame in front of them, Wang Bo and others blinked, feeling a little confused for a moment.

What is the reason for this? !

Is it so easy to light a fire with bare hands these days?

What's the use of such a fucking lighter? !

Looking at Wang Bo and others' obviously silly eyes, Wang Yu swiped out the flames and began to explain with a smile:

"This principle is actually very simple, mainly because of the use of electric current."

"After the current passes through the conductor, it will leave a certain amount of energy, and this energy will always be presented as heat on a metal substance such as iron wire."

"At this time, find some substances with a relatively low ignition point, and they will be easily ignited."

"I think this is probably why Mr. Ren didn't bring a lighter directly, but a bunch of batteries."

"It's just some very basic physics after all."

Wang Yu's explanation was very simple, and Wang Bo and others understood it very well.

But then they got confused.

Why Mao Te is physics again? !

As the saying goes, if you learn mathematics, physics and chemistry well, you will not be afraid to travel all over the world.

Before, they thought it was nonsense, how could mathematics, physics and chemistry be more effective than money.

But now it seems that this sentence may be a truth!

But then, they looked at Wang Shanhai.

The meaning of that look is also very clear.

Look at people!

They also use physics, and people ignite the fire realistically and comfortably, even bending over!

As for you, you have to make a disc, you have to pull a rope, and the key point is to make a wooden board with a fire groove carved on it. It's not too complicated!

As an adult, he is not as good as a student.

Brother, can you do it? !

At this time, Wang Shanhai, who was standing beside him, was also a little bit crazy.

Looking at Wang Yu's harmless smile, he felt a little stomachache.

At this moment, he really wanted to persuade Wang Yu kindly.

Children, B who pretends to be someone else is easy to get beaten up in society, do you know that!

The method of igniting the battery, he originally planned to tell Wang Bo and others step by step as a trump card.

Let them admire their "knowledge" so as to create a wave of presence, paving the way for the father and son to recognize each other later.

Although Ren Yan told herself all this.

But this does not prevent me from using it to install X!

Now it's all right, B was cut off by a child before he finished pretending, and he just pretended to the end.

Do you know what is gradual and what is foreplay?

Wang Shanhai was extremely tired, but at the same time he was surprised.

The method of battery ignition, to be honest, the principle is very simple, as long as it is said, any modern person can understand it.

But this does not mean that everyone can think of this in time.

There is always an invisible gap between theory and application, which requires long-term exploration and observation.

But now, a high school student can think of this method as soon as he sees the battery.

This really surprised him.

When I was in high school, I didn't have such a 'practical' boss.

What do children grow up eating now, have all of them grown to this point?

However, after looking at his sons and the others, Wang Shanhai was still relieved.

Maybe, it's just that this kid named Wang Yu is a special case...

But Wang Yu completely ignored Wang Shanhai's "tangled" eyes, and after demonstrating the method he thought of, he came to the side of the flywheel to get the firearm.

Observed with great interest.

"Although this thing looks cumbersome, the mechanical structure in it is really ingenious, inertia, friction, centrifugal force, energy conversion..."

"It contains a lot of knowledge points. If you are not a person with rich theoretical knowledge, it is difficult to think of this."

After contemplating it for a while, Wang Yu sincerely looked at Wang Shanhai and sighed: "Uncle, you are really extraordinary, and you can compete with Teacher Ren."

After listening to these words, Wang Shanhai instantly felt better.

The look in Wang Yu's eyes also became kinder.

This guy still has sharp eyesight~

Chapter 86 Don't be afraid to travel all over the world! 【Seeking follow-up, collection, recommendation, monthly pass】

"Cough, low-key and low-key."

Wang Shanhai settled down, looked at Wang Yu admiringly, and then said slowly, pretending to be profound:

"However, in addition to the above two methods, there is actually another method of lighting a fire."

"Another one?"

At this moment, Wang Yu, Wang Bo and the others were a little astonished.

It was a simple matter of lighting a fire, and in just a few minutes, they had already seen two or three kinds.

And now, the other party actually said there was another kind? !