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

Wang Bo and others couldn't help but think so.

Otherwise, it is really difficult to explain to other students.

Seven or eight of us spent a total of 7 minutes, but in the end, no fire was lit, and instead, we broke our hands?

Especially Wang Bo, who didn't succeed in half an hour? !

It's really embarrassing to say that.

It's better to reject this idea at all...

Although they know that [-]% of them are wrong in their operation method.

But at least it gave me a step down...

Wang Bo and others looked at each other and nodded.

Then wait a minute, just tell your classmates that.

Everyone sighed feebly, picked up the broken plank and looked at it, then sat down on the ground and became decadent.

"Speaking of which, should we start from a different angle? It's obviously not something we can play now..."

"Another angle?" Wang Bo laughed at himself: "Look at those miscellaneous things, can you use those things to get angry? There is nothing related to fire in it."

Everyone turned their heads, looked at those things, and shook their heads after a brief thought.

If they could make a fire with those things, they wouldn't have chosen to drill wood in the first place.

"How about we borrow a lighter with students from other classes?"

At this moment, another person spoke quietly.

"..."

The scene was silent for a moment.

After a few people were stunned for a moment, their eyes lit up.

I still think this method is more reliable.

But just when they were about to act, Wang Bo completely extinguished their last hope with one sentence:

"Teacher Ren has only one requirement, not to disturb other classes."

As soon as these words came out, the few people who had just come to the spirit suddenly became decadent again.

Turning his head to look at Ren Yan, he made a middle finger silently in his heart.

Damn it, my homeroom teacher has blocked all their way out!

How prescient!

After sitting down disheartened again, the few of them stared blankly at the wood in front of them, desperately thinking about other ways to light the fire.

At this time, Wang Shanhai walked leisurely from behind wearing Zhu Bajie's mask:

"Hey, are you digging wood to make fire here?"

Everyone raised their heads, and when they saw Wang Shanhai, they lost interest: "Can't you tell, uncle?"

"Didn't you tell me to call me brother?" Wang Shanhai's mouth twitched.

"Uncle, we are really not in the mood to joke with you now. If there is no fire again, we may have to drink the northwest wind at noon." One of the boys waved his hand feebly.

Continue to stare at the wood in a daze.

The rest of the people had no unnecessary reactions.

Wang Shanhai smiled and didn't care. Instead, he squatted down and picked up a piece of wood. After looking at it twice, he said familiarly:

"Hey, this kind of wood can only make a fire if there are ghosts."

"Not even a fire trough is engraved, even if a spark is drilled, it will be extinguished by you in minutes."

Wang Bo and the others turned their heads when they heard what Wang Shanhai said, "Uncle, can you make fire by drilling wood?!"

Wang Shanhai waved the wood casually, and said very accustomed to it: "Pediatrics, we often play like this when we are young."

As he spoke, he picked up a branch from the ground and played with it, looking confident.

"Then why don't you teach us?!" Wang Bo and others' eyes lit up when they saw this.

Wang Shanhai smiled complacently: "It's fine to teach you, but let's agree first. From now on, you have to call me Brother Wang, and you can't call me uncle anymore."

He still remembers Ren Yan's warning that he has to get along well with the children and not have any identity barriers.

Now, it seems like a good opportunity.

"Okay! As long as you teach us how to make a fire, then you will be our big brother!" The students agreed without even yelling.

Wang Shanhai also happily found another piece of wood and demonstrated it according to the method Ren Yan taught him just now:

"Drilling wood to make fire, mainly..."

While explaining, Wang Shanhai moved the branches like Ren Yan.

Just now he had tried several times at Ren Yan, and after making sure it was correct, he came to Wang Bo's place.

Now, naturally, it seems extremely relaxed.

In less than 5 minutes, the flame rose up under Wang Shanhai's operation.

The eyes of Wang Bo and others who watched were shining.

"I'm going, I'm going, I'm going, so it's like this?!"

"So simple?"

"Uncle, you have something! Ah bah, it's Brother Wang!"

The students in Class Nine gave Wang Shanhai a few approval glances one after another, which greatly benefited him.

I finally took the first step!

However, when he saw Wang Bo and others eager to do something on their own, Wang Shanhai stopped them.

He decided to elevate his image a bit further:

"In your current situation, it's better not to use your bare hands. Let me teach you a new method."

Chapter 84 Fire-making set【seeking follow-up, collection, monthly pass, recommendation】

"A new method?"

Wang Bo and the others, who were about to do some practical operations, turned to look at him when they heard what Wang Shanhai said:

"Brother Wang, is there another way to make fire by drilling wood?"

"Of course..." Wang Shanhai nodded confidently: "We are the primates of all things, the top of the food chain who are good at using tools."

"Drilling wood to make fire can be solved with tools, so why bother?"

While speaking, Wang Shanhai took out a disc-shaped stone from his lower back, and there was an obvious hole in the middle.

This is the prop that Ren Yan found when explaining this method to Wang Shanhai just now.

Now it has been taken over by Wang Shanhai in the name of giving a demonstration to the children.

He still remembered Ren Yan's effort when he made a hole in this stone, and he didn't want to show his strength in front of Wang Bo.

It's better to do it more easily, so as to show your own style.

"Brother Wang, what's the use of this?" A boy next to Wang Bo asked, and the rest of the people also looked at the stone and fell into deep thought.

"You know the steam engine, right? (...This sentence is fine!)" Wang Shanhai glanced at everyone, then picked up a branch and passed through the disc stone.

"When the steam engine first became a power source, it had a flywheel as the power system for the loop, relying on the inertia generated by the flywheel."

Wang Shanhai recalled Ren Yan's words, and explained slowly.

"And the function of the disc stone in my hand is actually similar to the flywheel on a steam engine, and it also plays a role of inertia."

"But for it to work on its own, we need to do an additional step."

As Wang Shanhai said, he completely stuck the disc stone on the branch, completing the first step.

Then, very acquaintedly, he used a knife to cut a cross on the top of the branch, and then pulled out a nylon rope from the sundries that Ren Yan brought.

After stuffing the middle part into the cross of the branch and tying it with another small piece of thin thread, the nylon thread thrown out from both ends was wound in a snake shape towards the branch.

After a while, a strange combination of branches with a stone disk hanging from the bottom and a nylon rope spirally winding the top appeared in front of Wang Bo and others.

"This is the tool you mentioned?" Wang Bo asked in confusion.

"Yes." Wang Shanhai nodded, and took a deep look at his son.

He had never seen such a curious look on his son's face before, but now...

He could feel that Wang Bo had changed significantly.

"I call this set of equipment a fire-drilling flywheel. If you add some suitable wooden boards with fire grooves, it will be a set of tools for drilling fire." Wang Shanhai said.

"How to use this thing, Brother Wang."

"Simple~" Wang Shanhai waved his hand slightly, took the flywheel and propped it to the wooden board where the fire tank was opened before.

After fixing the position, Wang Shanhai calmly pulled the two ends of the nylon rope wrapped around the branch.

next moment.

The originally quiet branch spun quickly, and after one turn, it would immediately return to its original shape.

The two nylon ropes that had been pulled straight also returned to the entangled state again due to inertia.

After that, Wang Shanhai pulled again, and the branch spun rapidly again.

Under Wang Shanhai's repetition, after more than ten seconds, the smoke began to rise.

According to the previous method, Wang Haisheng quickly ignited another flame.

Look at the newly lit flames in front of you.

Wang Bo and the others looked at each other in shock.

A flame that they had exhausted a lot of energy before could not deal with it, and now it was so easy for the opponent to make two balls.

And the last ball is still so freehand? !

This made them ashamed for a while.

They are all human, so why is there such a big gap?

But ashamed, ashamed, Wang Bo and others still have a very strong interest in this tool.

In the future, if there is such a thing in the wilderness, who will use a lighter!

The lighter may break at any time, but this thing can be made in minutes.

It doesn't hurt your hands!

It is simply a gift of nature!

"Brother Wang, is the principle of this thing purely based on inertia?" Wang Bo and others seemed extremely excited at the moment.

Wang Shanhai scratched his neck in embarrassment. He just let Yan mention the principle of this thing, and he probably knew what was going on.

But if you really let him speak clearly and logically, it would be a bit embarrassing for him.

"Well, it mainly relies on inertia, but there is also a part of centrifugal force."

"But if you want to understand this, you have to study physics well."

"Otherwise, there are more things, and you won't understand."

In the end, Wang Shanhai could only choose such a universal answer.

'You don't even understand! '

This trick was a one-word technique commonly used by the teacher when he was in school.

In the face of students, it can be called impeccable.

"Oh, that's it..." Wang Bo and the others nodded cooperatively, and at the same time memorized physics.

Physics also planted seeds in their hearts for the first time.