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Chapter 369 is three hundred and 68: Deep diving and shipwreck [6400, full order]

"teacher"

"How about we go?"

A gust of sea breeze hit, and all the boys from class nine who had already landed on the island shuddered.

Now this scene has gone beyond their understanding, making them feel a trace of fear from the bottom of their hearts.

Especially when he thought that what he was stepping on might be hundreds of millions of lives, this feeling of fear intensified again.

This is not exactly the same as what they thought!

What about the promised mystery, what about the promised symbol of a man?

What is the meaning of making such a weird thing? !
Everyone in Class Nine was obviously discouraged, but Ren Yan was in high spirits.

"Go? Why do you want to go?"

"Weren't you quite excited before?"

Ren Yan looked up at these cowardly guys with contempt on her face.

Everyone in Class Nine was speechless for a while:
"not a teacher"

"Is it appropriate to say these words with your previous cautious expression?"

"Aren't you still pretty cowardly before?"

"Why are you so brave now!"

"Hey, I didn't call it cowardice before, that was stability~" Ren Yan gave them a white look: "I didn't know how this place came into being before, and I had the most basic fear of nature."

"But now I probably know how this thing came about, why should I be afraid?"

Hearing this, everyone in Class Nine was confused for a while:
"Do you know how this place came to be?"

"Are you sure this thing is not a sacrificial ground for some evil god?"

"Are these sea creatures sacrificed?"

"."

After Class Nine's words fell, Ren Yan was speechless for a while, covering her forehead rather melancholy:

"You guys have a lot of imagination, I don't mind."

"But can you have some common sense?"

"This is the real world, you guys haven't traveled through time? What are you thinking?!"

"Then how did this thing come about?" Class Nine continued to ask: "Also, what is this pink object that looks very unlucky?"

"Is it really not the flesh and blood of this island?"

After saying that, all the boys in Class [-] pointed to the pink patch that Ren Yan dug out.

Although their teachers said that there is nothing wrong here, they are still inexplicably a little cowardly.

"This is the appearance of Yi Shan Chou Chou who have never seen the world." Ren Yan responded speechlessly.

Class Nine was stunned: "Coral?!"

"No way, even if this thing is pink, how could it be so bright!"

"After all kinds of feng shui sun exposure and the invasion of marine life, the coral should have some traces of dilapidation."

"This thing obviously doesn't have these traces."

"That's because it hasn't been disturbed at all. It has been like this since its birth." Ren Yan continued to dig a few times with the shovel until some branches were exposed.

Only then did I prove to Class Jiu that this thing is a coral:
"Coral is composed of calcareous skeletons secreted by coral polyps, mostly red, white and black. It is a wonder in the sea and home to many fish."

"Most of them grow in gentle places of 100-200 meters on the seabed, and the highest known height is about 12 meters."

"The quality is firm but lacks toughness, and it is mostly used as decoration."

"These are the basic information about corals."

"On the whole, the presence of corals here is somewhat unexpected but reasonable."

After briefly explaining the characteristics of the coral, Ren Yan casually inserted the shovel into the ground.

Everyone in Class Nine was stunned, but then they became puzzled:
"No, Teacher Ren."

"We checked before, and the depth of the Bering Strait is only about 42-53 meters, which is not suitable for the growth of corals at all. If it is true as you said, how can there be corals in this place?"

"So, this coral is probably foreign." Ren Yan shrugged.

But everyone in class nine was still puzzled.

Seeing this, Ren Yan began to give hints:
"Think about it, why such an unnatural island is formed here, not to mention that it has not been discovered by all countries, and it is so close to the sea."

"And why there are various marine life residues in these soils, which make the land fertile."

"The most important thing is why this island is like a rootless island that can sway with the sea."

"These points are not what a normal island should have."

After saying that, Niu Pu narrowed his eyes thoughtfully: "You mean this thing actually rose from the bottom of the sea?"

"But how can this thing rise up, it doesn't make sense."

"Why not?" Ren Yan looked at the other party with a smile: "If it can be given an upward force, according to the current density of the island, it should not be a big problem to rise from the sea."

"It's just that it's definitely not the bottom of the sea."

"But even so, the soil on it explains it, and why it floats, but the coral thing still doesn't make sense."

Hearing this, Li Cheng also used his brains.

The rest of the people nodded, and they still couldn't figure this out.

But Niu Pu was a little stunned: "Actually, there is nothing unreasonable."

"Corals can't grow here, can't they grow elsewhere?"

"Teacher Ren also said just now that this coral may be a foreign object."

"If this hypothesis is true, the coral problem will be solved."

"As for how the corals came here, it should have been transported without accident."

"As for how to transport it, it must be a ship~"

"And now it rises to the surface, that is to say"

"There may be a shipwreck below here?!" Wang Bo's eyes lit up immediately.

I can't help feeling a little excited.

Shipwreck, I’ve heard of it but never seen it!
Niu Pu nodded in satisfaction: "Anyway, that's what I think. Only in this way can I make sense."

"But this thing is outrageous, isn't there such a coincidence in the world?" Li Qi murmured, "A ship happened to sink here after passing through the Bering Strait."

"Then there happened to be coral in the boat, and this coral happened to continue to grow, and it happened to be discovered by us in the end?"

"And isn't this area too big for coral?"

"Don't you think this is too ridiculous?"

"Is it ridiculous?" Ren Yan shrugged indifferently: "There are all kinds of wonders in the world, and all kinds of coincidences will always happen after a long time."

"It's the same as how this place floated."

"Instead of caring about these things, why not verify our guess~"

After saying that, Ren Yan smiled and looked at the group of students who were suddenly enlightened and a little bit confused.

I secretly added something in my heart.

'Although I don't want to believe it, how can such a thing like time travel happen? Is there anything in this world that can't happen? '

Then he turned his head to look at Li Qi:

"And who told you it's hard for corals to keep growing?"

"Corals are not living things, as long as there are polyps that can continue to secrete calcareous skeletons, they can continue to grow."

"If there is a piece of coral in the first place, this possibility is even more likely."

"Besides, who told you that such a large piece would be coral?"

Saying that, Ren Yan clapped her hands, attracting everyone's attention:

"In short, you can doubt anything, but you must not be surprised by anything, you just need to remember one thing."

"Use your own curiosity and sufficiently scientific methods to explore everything unknown, and you will definitely get the answer you want in the end."

"However, before getting the answer, bold assumptions are also an essential link~"

"Now, we have finished the hypothetical link, how to get it done next?"

With that said, Ren Yan glanced around her students again.

A few quick responders immediately gave their own answers:
"That must be verification!"

After all, they rushed back to No. [-] squad immediately, changed into the outfits for going into the sea, and after warming up, they were ready to plunge down.

In an instant, the style of painting changed from a timid weakling to a reckless man who said nothing.

Ren Yan didn't recover for a long time.

It even reminded him of a composition test question from long ago.

Is the ignorant fearless, or does ignorance produce fear?

Ren Yan has never been very clear about this question.

But when they really wanted to go into the sea, Ren Yan who suddenly woke up pulled them back:
"Go crazy, you guys!"

Ren Yan looked angrily at these few people who claimed to be good at water, with a strong sense of reprimand in their bad tone.

The few people were taken aback, and touched their necks in embarrassment: "Aren't we excited, and what do we think about our previous speculation that it won't go into the water?"

"Then it's not like that."

"Exploring on the bottom of the sea, with your current equipment, it's about the same as sending you to death."

"It's hard for you to think about warming up!"

"But don't you guys feel cold?"

Looking at the thin full-body swimsuits of several people, the corners of Ren Yan's mouth twitched uncontrollably.

Hearing this, several people shook their heads: "It's okay."

"It's broad daylight, and the temperature is still above zero."

"."

'Damn, the firepower of the young man is very strong! ! '

'Is the temperature still above zero now? ! '

'Is this the courage of young people? '

I don't know how many times this is, Ren Yan really wants to cover her speechless face with her hands again.

But think about it, let it go.

Instead, he began to warn his students not to make such scary moves.

After a brief 'exhortation', Ren Yan brought the topic back to the sunken ship.

And a feasible execution plan is given:

"Remember, you will want to go deep into the bottom of the sea later."

"Not only to warm up, but also to use the equipment for deep diving."

"Without this set of equipment, ordinary people would be risking their lives if they dive four or five meters, understand?"

"But teacher, we don't know how to dive deep." Putting on his clothes again, Qingdong regained his confidence to a certain extent and said weakly.

Ren Yan immediately rolled her eyes and said, "Can't you learn something you don't know?"

"And it's not that difficult."

After finishing speaking, Ren Yan went to Class No. [-] again, and came down with a package after a while.

When Ren Yan opened the package, everyone in Class Nine was stunned.

Fins, a breathing mask, a thick full-body swimsuit, plus an oxygen tank marked 2L.

This set of equipment left everyone in Class Nine dumbfounded.

When did my teacher buy these things?

As for Ren Yan, after taking out her equipment, she immediately waved her hand and said proudly:

"Come on, let's learn to dive today!"

"If you want to investigate the seabed, you must start with deep diving!"

deep dive.

An advanced stance for swimming.

It is often regarded as one of the must-learn skills by some swimming lovers.

At its core is the depth of the dive.

Some people who have experienced professional training can even dive to a depth of four 500 meters, where they can experience the limit of the human body.

But Ren Yan never planned to teach his students that way.

Just take a look at the bottom of the sea, there is a depth of 60 meters that is almost the same.

Of course, the most important thing is that when diving four 500 meters, Ren Yan felt that even if she knew [-]% of the skills, she would not be able to do it.

This thing requires more than skills, more importantly, talent.

A talent that can compress one's own lungs infinitely.

So far, as far as Ren Yan knows, the only people who can achieve this level are those practitioners who make a living by doing so.

For ordinary people, the limit distance seems to be more than [-] meters.

"Okay, all of them are there, look up to me!"

To a certain extent, Ren Yan, who avoided the students putting on the deep diving equipment, stood in front of her own students again and started explaining about deep diving.

"Deep diving, in fact, is not fundamentally different from your usual treading water."

"It's just that the surface of the sea is replaced by the sea, and the techniques used are basically the same."

"It might even be easier, because this time you'll have something like flippers that can provide a powerful boost."

"The only thing to pay attention to is only three points."

"The first point is the wearing of the equipment."

"The exposed parts of the wrists and ankles must be as close to your skin as possible."

"The second is the fixing of the fins. If this thing really falls off on the bottom of the sea and cannot be rescued, then the other flipper must also be removed."

"Otherwise, it is very likely that your body will be out of balance, and some unnecessary accidents will occur."

"However, the above two are considered trivial."

"The most important thing is the choice of oxygen tanks and masks."

"Oxygen tanks for deep diving are generally between 0.6-60L, and the material is usually made of lighter aluminum."

"But even if they are made of aluminum, there will be a big gap in their overall weight. This weight will bring different difficulties to your infiltration."

"So, be sure to choose the oxygen tank that best suits your physical condition."

"Don't think that with a large capacity, you can stay in the sea for a longer time. This kind of thinking is very dangerous."

"I don't bother to talk to you about the truth that I can't chew too much."

"As for the best position of the oxygen tank, just like me, it's good to carry it behind your back."

"Use the inspiratory tube on the mask and connect the oxygen tank to achieve the purpose of self-breathing. Similarly, the mouth inhales and the nose exhales."

"If the suction pipe breaks in the middle, you have to complete the ascent as soon as possible and replace it with a new suction pipe."

After all, Ren Yan showed the real thing in front of everyone in class nine.

The drone also faithfully synchronized this scene to the live broadcast.

For a while, netizens even missed it a little bit.

They have all forgotten how long the teacher has not lectured like this.

"The second point is to dive."

"There are two main ways. The first is to lift your hands up and use your own weight to naturally dive to the bottom of the water."

"This is better than safety, but the efficiency will be relatively low."

"As for the second method, it is to plunge headlong into the sea, work in reverse by treading water, and completely send your body to the bottom of the sea."

"This kind is fast, but requires relatively high skills."

"If you can tread water proficiently, you can try it."

"The last difficulty is the most important difficulty."

"To overcome my fear of the deep sea."

"In the deep sea, you will experience a sense of claustrophobia. This sense of claustrophobia will make your whole body feel uncomfortable, and even stiff."

"These are normal physiological responses of living things to danger, just like animals playing dead."

"But if this is really the case at the bottom of the sea, then you will usher in real death."

"So for this, what you have to do is to adapt, from diving to deep adaptation, step by step, to overcome the psychological fear of the ocean."

After saying this, Ren Yan pointed to the boat:

"I've said all that needs to be said, now you go to the warehouse on the ship to find your deep diving equipment and follow me for a practical exercise."

As soon as the words fell, everyone in Class Nine was stunned for a moment, and then Class Nine rushed up like the wind, and found the deep diving equipment hidden deeply by his teacher in the warehouse.

Although they don't know how much their unlucky teachers know how to buy these things.

But they know where the usual teachers spend their class fees.

It's no wonder that the other party's class fee always starts at tens of thousands. It depends on the quality of the deep diving equipment, and it is also known that the price is not cheap.

It was different from other students who happily chose the equipment suitable for their body shape and ran to this strange island again.

Ah Wei looked at the equipment in his hand, and there was only one thought left in his mind.

"Do I have to talk to my teacher about it?"

He doesn't mind buying things, but don't you have to talk to him about the type of goods purchased and the amount spent?
Otherwise, how will I keep accounts in the future? !
He ignored the entanglement in Ah Wei's heart.

After confirming that there is no major problem with the island, my teacher is going to take the students to dive again.

Everyone in class nine gathered on this small island.

In an instant, the small island was in danger of capsizing.

In the end, Ren Yan had no choice but to let everyone in Class Nine practice in batches.

After the first batch of students put on the equipment, Ren Yan immediately jumped into the sea, followed by the students.

After checking that there was nothing wrong with the equipment, Ren Yan asked the students to snorkel and observe first, and then plunged into the seawater.

Only the Class [-] people were left staring at the sea water, and after a while, they snorkeled helplessly to observe.

We are all equipped, and this is the result?
The students were slightly dissatisfied.
But looking at them, I feel that it is a bit beneficial not to dive deep for the first time.

Because not long after their teacher dived in, they saw a group of fish swimming past their teacher.

Although it didn't seem to be dangerous, they still felt that this scene was an accident, and if it wasn't handled well, an accident might happen.

They didn't know for sure until they saw an octopus slapping their teacher's mask
What a surprise!
Under normal circumstances, how could there be an octopus sticking to the face output!
Fortunately, this thing is not big, otherwise it would definitely be enough for my teacher to drink a pot!

When they thought their teacher would be in a hurry, Ren Yan calmly tore off the octopus and threw it to the other side.

The octopus immediately kicked its legs and disappeared.

Immediately, Ren Yan went around a few more times, and after successfully diving into the bottom of the sea, she began to float towards the surface of the sea.

Not long after, he jumped out of the water again with his head raised.

Everyone in class nine immediately gathered around, intending to listen to their feelings.

And Ren Yan just waved his hand, saying that there is no problem, as long as they follow what they said and did just now, and complete the infiltration step by step, there will be no problem.

And because the depth of the ocean here is relatively shallow, the lack of light that Ren Yan is most worried about is not very serious.

At least after going deep into the seabed, the surroundings are still faintly visible.

It is very different from the claustrophobic environment of the real deep sea.

Theoretically speaking, there is no problem for our own students.

After saying this, Ren Yan took off her mask and wiped her face, adding: "Oh, that's right."

"There is one more thing you should pay attention to."

"The movement of deep diving should be as gentle as possible."

"Creatures in the sea are more vigilant. If they are startled, they will probably attack."

"Just like the octopus I met just now."

"If you don't want to be ridden in the face by an octopus, you have to put away your restless thoughts and treat yourself like a big fish."

"That way, it won't be a big problem."

"If you really encounter dangerous giant marine life, the oxygen cylinder behind you is a small bomb, which may save you at a critical moment."

"At that time, remember to use it."

"However, this sea area is relatively safe, and there are no large marine life."

Saying that, Ren Yan showed a harmless smile.

It made everyone in Class Nine tense for no reason.

They always feel that their teachers are scaring them, but they also feel that this is really possible.
In the ocean, are there still few strange-looking creatures?
But in this way, I still can't dive.
When everyone's expressions were tangled, Qingdong, the best swimmer in class nine, plunged into the sea.

No matter what others are like, anyway, he wants to go to the sea to have a look.

And just now they snorkeled and saw that there are no large creatures in the sea, so they don't know what their classmates are afraid of.

Under the suspicious eyes of everyone in class nine, Qingdong had already dived about five meters.

Just like what my teacher said, deep diving is not difficult.

It even feels easier than snorkeling.

Emergence also needs to consider the situation that the breathing tube accidentally enters the water or completely enters the sea and cannot breathe.

But Deep Dive didn't take this into account at all.

The connection between the breathing tube and the mask is perfect. As long as you don't take off the mask, there is basically no water ingress, and the oxygen is completely sufficient.

Except that there is not enough light here, there is no essential difference from the land.

As for the sense of claustrophobia and fear that the teacher mentioned earlier?
Qingdong didn't feel it at all, rather, what he felt at this moment was the real harmony of milk and water.

When I saw colorful unknown fish swimming past me.

Qingdong felt an indescribable joy in his heart.

Time passed slowly, and everyone in Class [-] was snorkeling to watch Qingdong's movements.

Only Ren Yanhuo sneaked down together with Qingdong, and fell not far away to protect secretly.

Even if this sea area is not dangerous, Ren Yan is still more worried about accidents.

Qingdong's speed was very fast, even faster than his own speed just now.

It only took about 7 minutes and he was close to the bottom.

The moment he approached the bottom, he controlled his figure to turn upside down and stood firmly on the bottom of the sea.

Soft and dense.

Just like the touch of that small island.

'It seems that Mr. Ren's guess is somewhat reasonable.'

Qingdong thought about it secretly.

The figure began to swim around non-stop.

He also remembered why they learned to dive deep.

After a while, Qingdong's figure stagnated.

The pupils dilated unconsciously.

In front of his eyes, a broken ship was covered with mud and sand.

There are a few strands of debris floating around, and some fish and shrimp corpses.

On top of the ship, a huge coral together with incomplete wood and sand formed a small platform.

On the upper end of the platform, there is an obvious fracture mark
(End of this chapter)