The principle of breathing through a bamboo tube is very simple.

It's the same as when a person uses a tube to come out of the water to breathe.

But there is a restriction here.

That's the length of the tube.

If the tube is too long, the air a person exhales will stay inside the tube, and the next breath will be the same breath they just exhaled.

Over time, less and less oxygen will be breathed into the body.

There is also a risk of suffocation.

Of course, there are ways to solve this.

Ye Han is not alone!

He also has Su Xiaoqi to help him!

Ye Han's idea was to build a bamboo pipe of sufficient length, which he could carry into the deepest part of the cave to dig for sulfur.

Su Xiaoqi stayed outside the cave, constantly pumping air into the bamboo tubes, so as to ensure that the oxygen content in the gas Ye Han inhaled was sufficient every time.

As for how to transport air into the inside of the bamboo tube, it's even simpler. Don't forget that Ye Han also has a blower.

At this time, Ye Han told Su Xiaoqi his idea.

"Boss, you are such a genius!"

"Although this method is simple, it is absolutely effective."

"How can you mine with your eyes closed?"

Su Xiaoqi felt that it was impossible to mine with her eyes closed.

Ye Han laughed.

"Xiaoqi, can you chop vegetables with your eyes closed?"

Su Xiaoqi nodded.

With her knife skills, this was no problem at all.

Even with her eyes closed, she can cut potatoes into very fine shreds, carve a radish flower, or even cut tofu into flowers!

“Is it easier to mine or chop vegetables?”

Ye Han continued to ask.

Su Xiaoqi thought for a while.

"Chopping vegetables."

Ye Han hit his head with his fist.

This question is a bit silly.

For Su Xiaoqi, cutting vegetables is naturally easier, hahaha!

"Let me tell you this, we both saw the sulfur mine, and I even got a piece of sulfur and brought it back."

"When the time comes, I can just hit it with a hammer with my eyes closed. Isn't this something that only requires hands? Do I still need to use my eyes to see?"

"I put the sulfur fragments that fell down into my backpack and took them out. During this period, I only had to open my eyes very few times, which effectively prevented my eyes from being exposed to toxic gases."

When Ye Han explained this, Su Xiaoqi understood immediately.

"It's indeed no problem. Boss, you are so smart!"

Su Xiaoqi nodded repeatedly, she could imagine such a scene.

"Well, because you are so good at talking, let's forget about the deductions from your previous wages."

Ye Han said with a smile and continued to handle the bamboo in his hand.

The cave is not a straight one, it has to make two turns.

And according to its depth calculation, more than one hollow bamboo tube is needed, so Ye Han has to make two small bamboo tubes with curvature for connection and turning.

Regarding the situation in the cave, Ye Han kept it in his mind, and the difference would not be too big.

Ye Han has been busy with this matter throughout the afternoon.

The audience also saw that Ye Han was mainly doing some chores today.

Make preparations for what lies ahead.

Some viewers said that the green anaconda has really entered a countdown to death.

There's not much time left for it!

On the other side, today Lengfeng and Li Guang returned to the rubber tree area again.

Through observation, Leng Feng also discovered some clues.

The first is that there are indeed traces of jackal activity here, and this is within the range of jackal activity.

The second is that he found the trap set by Bill, which also contained a rotting jackal corpse.

It should be that after Bill left, a jackal fell into it and died.

"Isn't this the kind of trap you use against us?"

"This Bill!"

Li Guang felt a chill running down his back when he saw this trap.

He almost died in it!

"Well, this is what Bill did."

"Ah Guang, let's go together and take a look around here."

The cold wind has become excited.

The battle is coming, can he not be excited?

The last time he shot a leopard, the leopard died before he could get enough of it.

And if the jackals attack this time, he can have a good time.

The two began to search the area and found jackal feces, hair, etc.

But I haven't seen any jackals yet.

"It's not like he ran away!"

"Were the jackals scared away by Brother Feng?"

"No, hahaha, these jackals don't know how powerful Brother Feng is."

"Aura, do you understand it? Brother Feng is here, and the murderous aura and evil aura are also here, and the jackals run away with their tails between their legs!"

"Don't tell me, it's really possible!"

"Isn't Brother Feng going to emo? He was ready to fight, but his opponent ran away. What is this?"

The audience in the live broadcast room started talking one after another, and many people suspected that the jackals had escaped.

Otherwise, Leng Feng and Li Guang searched here for a long time, why didn't they find it?

Seeing that it will be dark in two hours, do the jackals want to wait until night before taking action?

"Don't worry, everyone. Jackals usually move around in the morning and dusk. It's not the time yet."

"And the jackals shouldn't be afraid of us, Brother Feng, because even tigers and leopards dare to attack us. I guess the jackals are about to appear."

In Leng Feng’s live broadcast room, Professor Yuan said.

On the side is Xiaoliang, and they are in the same frame!

"Hahaha, Professor Yuan is right. Please be patient. I feel like the battle will begin soon."

Xiaoliang said with a smile.

Originally, the two were working in shifts, but the audience strongly requested that they want to see Professor Yuan and Xiao Liang explain together.

Of course, the program team of China Kingdom must satisfy this small request.

"In front of Xiaoliang, I am just doing my own thing. My understanding of various animals and plants is far inferior to him."

Professor Yuan said humbly.

The people of China have been relatively humble since ancient times, which can be seen from many words.

Acceptance, humble house, dog, humble wife, humble thorn, etc.

Some people in modern times do not understand these words. For example, "Jiannai" means the wife of a humble person like me, but some people understand it as, "My humble wife." This is a joke.

Zhuo Jing agrees.

"Okay, okay, let's stop bragging about each other in business, hahaha."

"Let's continue watching the live broadcast. The jackal droppings that Brother Feng found just now are still fresh, which proves that the jackals have not left this place."

Xiaoliang added another sentence.

The audience in the live broadcast room immediately began to make fun of him.

Everyone said how did Xiaoliang know it was fresh? He must have tasted it.

Xiao Liang was very helpless about this. If he had this ability, he would have gone to the island long ago!

But what he and Professor Yuan said were both right.

As time passed, and more than half an hour passed, the cold wind stopped and his whole body began to tighten.

Because he had already heard the sound of the jackals moving, and unknowingly, the jackals spread out and surrounded the two of them!

A big war is about to begin!

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Chapter completed!