It's reasonable for me to have a two-way foil for a second-level civilization, right?

"Let's do an autopsy first to see what's going on."

……

"Professor, the autopsy results are out."

Mao Zhengzhi walked up to Lu Yongchang holding a report with a strange expression.

"The mice died from lack of oxygen."

Hearing this, Lu Yongchang froze in place: "Lack of oxygen?"

"What happened to the deep sea fluid?"

"Or is there something wrong with the filter and purification device?"

Mao Zhengzhi shook his head: "We checked, and there is no problem with both of them. The problem is the mouse."

"During the dissection, we found that there was basically no deep-sea fluid in the lungs of the mice."

Speaking of this, Mao Zhengzhi patted his head in frustration: "I should have thought of it earlier."

"After the little white mouse entered hibernation, its breathing rate and strength decreased. It was fine when it breathed air, but if it was replaced with deep sea fluid, something would happen!"

Lu Yongchang looked a little gloomy.

Now, back to the original question.

The liquid is too dense for humans, or living things, to "breathe" it.

But now, the problem is getting worse.

In deep hibernation, breathing effort approaches zero.

Unless the density of deep-sea liquid is the same as that of air, this problem cannot be solved.

But does this liquid really exist?

Chapter 157 "Lung Tubes"

As the question was raised, the atmosphere between the two gradually became tense.

After a long silence, Mao Zhengzhi exhaled lightly and shook his head vigorously.

"The direction is wrong, we shouldn't start with deep sea fluid."

"A deep-sea liquid with a density similar to that of air is almost impossible to achieve!"

Lu Yongchang didn't speak, but nodded silently.

He raised his head and looked at the little white mouse quietly sinking in the light yellow deep sea fluid with several catheters inserted into its body.

Gradually, his dim eyes gradually brightened.

"you say……"

Lu Yongchang said in a slightly low voice: "Why don't we just insert the catheter into the lungs?"

"Just like a gastric tube, inject deep sea fluid directly into the lungs of hibernating mice, and then use a catheter to assist in the exchange of deep sea fluid?"

Mao Zhengzhi's eyes suddenly lit up!

"That's right!" He stretched out his hand, slapped his thigh vigorously, and said with a slightly excited expression, "It makes sense! Since they can't inhale deep sea fluid after hibernation, why don't we just pour it in!"

While talking, he excitedly stood up and walked to the experimental bench.

The laboratory is rich in equipment, and it didn't take long for a small catheter similar to a gastric tube to appear in front of Lu Yongchang.

Different from the simple stomach tube, considering that the lung tissue is relatively fragile, and the organism has two lungs, the end of the main tube of the "lung tube" is divided into two thin tubes.

After the device was made, new problems reappeared.

Unlike the stomach tube, the insertion of the lung tube is obviously infinitely more difficult.

On the one hand, the lungs and trachea are intricate.

On the other hand, lung tissue is extremely fragile.

Therefore, it took the experimenters a lot of time just to insert the lung tubes into the lungs of hibernating mice.

After inserting the lung tube and connecting it to the machine, Mao Zhengzhi carefully placed the mouse in deep hibernation into a glass container filled with deep sea fluid.

After confirming that all operations were correct, Mao Zhengzhi heaved a sigh of relief, and reached out to wipe the sweat from his forehead.

"Okay, it shouldn't be a problem now."

He said with a relaxed face: "Professor, this deep sea liquid should be used together with hibernin!"

"Huh?" Lu Yongchang was stunned for a moment, then subconsciously asked, "Why do you say that?"

Mao Zhengzhi smiled bitterly: "Professor Lu, you have never seen the scene of putting a mouse into the deep sea fluid."

"Breathing liquid is against biological instinct, so the process of inhaling deep sea fluid at the beginning is extremely painful."

"Hibernation technology perfectly solves this problem."

……

I have to say that although this plan is simple and crude, it does play a certain role.

Unlike the fate of the previous mouse, this mouse spent several days and nights in the pale yellow deep sea fluid unharmed.

"It seems that this time it was successful."

Even Lu Yongchang, looking at the stable vital signs data, let go of Gao Xuan's heart.

"Now, the question we need to consider is how to intubate quickly."

"It can't be applied to people at that time, and several doctors will be needed to intubate around?"

Hearing this question, Mao Zhengzhi showed a bit of embarrassment on his face.

That's right.

At present, the difficulty of intubation seems to be the only disadvantage of this solution.

"Is it okay to let Zero operate?"

Mao Zhengzhi subconsciously looked at the camera on the side.

The next moment, a holographic projection appeared.

The image of Zero is still that well-mannered man in a suit.

"Academician Mao, at present, my computing power is not enough to support intubation for billions of people at the same time."

"Besides, even if I do the operation, the whole intubation process will take more than 10 minutes."

Mao Zhengzhi nodded thoughtfully.

Intubation times above 10 minutes are not a big deal.

After all, after entering deep hibernation, the oxygen carried in the human blood is enough to support consumption for several hours.

"It means that if the computing power allows, this operation can be realized?" While speaking, Mao Zhengzhi cast his eyes on Lu Yongchang for help.

Lu Yongchang: "..."

Facing Mao Zhengzhi's eyes full of "expression", he shook his head silently.

"The third-generation quantum computer technology is still in the research and development process, and I haven't heard any good news from Academician Mo recently."

"Hey..." Mao Zhengzhi sighed with disappointment.

Just as Lu Yongchang and Mao Zhengzhi were about to continue discussing the intubation plan, Zero's voice suddenly sounded.

"Professor, something happened to that little white mouse."

……

When the two hurried back to the laboratory, the little white mouse had been placed on the dissecting table by the researchers.

"what happened?"

As soon as he entered the door, Mao Zhengzhi hurriedly asked.

"Academician Mao, the mice still died from lack of oxygen." A researcher said with a heavy expression.

"Hypoxia?"

"Are the lung tubes useless?"

Facing Mao Zhengzhi's inquiry, the researcher just shook his head silently: "We are also checking the specific reason. The data has just been uploaded to the server. It is estimated that Zero will take a little time to get the analysis results."

Perhaps because of another failure, the atmosphere in the laboratory was particularly heavy.

Every researcher stood quietly, with his head down, waiting for Mao Zhengzhi's order.

Feeling that the atmosphere was not right, Lu Yongchang didn't speak, but walked slowly to the disembowelled little white mouse and looked at it carefully.

Pulmonary subserosal and subepicardial spotting.

Very typical features of suffocation death.

"Where is the lung duct?" Lu Yongchang suddenly asked the researcher beside him.

"Ah?" Facing Lu Yongchang's sudden question, the researcher was taken aback for a moment, and then quickly pointed out, "It's probably in this area."

Lu Yongchang frowned slightly: "It's so short..."

"Professor Lu, there is no way to do this, the lung tissue is too delicate, we can only lower the lung tube to this extent."

Looking at some light yellow liquid remaining in the mouse's lungs, Lu Yongchang said in a deep voice: "Take a sample of the remaining liquid in the lungs to see how the oxygen content is."

"And, Zero, modeling the lung structure of a mouse."

Lu Yongchang's voice seemed to inject a boost to the originally sluggish laboratory. In just a few minutes, all the researchers returned to their posts and started the inspection work according to his instructions.

Chapter 158 Nanorobotics

"Professor, the modeling is complete."

Zero's electronic synthesis sounded from the side, and at the same time, a blue holographic projection appeared in front of everyone.

The lung structure of the mouse is clearly presented on the projection.

"Zero, join the lung tube, the location is in these two places." While talking, Lu Yongchang stretched out his hand and nodded in the air.

The next moment, two lung tubes appeared in the lung model.

"Simulating the scene of deep sea fluid injection."

In the holographic projection, the deep-sea liquid is slowly injected into the lungs of the mice through the lung tubes, gradually filling the entire lungs.

"Stop!" At the moment when the mouse's lungs were filled with deep-sea fluid, Lu Yongchang suddenly said, "Zero, simulate the flow of deep-sea fluid near the alveoli in detail."

The picture in the holographic projection quietly enlarged, and the dense alveolar structure of the mouse's lungs appeared in front of him.

Looking at the state of the deep sea fluid in it, Lu Yongchang muttered to himself: "It really is..."

"Brother Mao, look."

"Although the lung tube is constantly injecting fresh deep-sea fluid, it can only replace the part of the liquid near the lung tube, and it cannot help the circulation of the deep-sea fluid in the alveoli."

Mao Zhengzhi walked quickly to Lu Yongchang's side and observed carefully.

"Professor Lu, the test results are here!" The researcher's voice came from the side, "The oxygen content of the deep-sea fluid near the alveoli is about 50% lower than that of normal deep-sea fluid!"

The detection results undoubtedly verified the simulation results of zero.

Mao Zhengzhi's eyes instantly dimmed a bit: "It's a pity...the lung tube is useless."

"It's not useless, at least, the direction is correct." Lu Yongchang patted Mao Zhengzhi's shoulder with a smile, "It's just that we may have to redesign a lung tube."

"To be precise, we need to insert the lung tube deeper, preferably to reach the alveoli."

"Impossible!" Mao Zhengzhi shook his head again and again, "The structure of the lungs is too complex, and the average diameter of the alveoli of an adult is only 0.2 mm. In addition to the complicated terminal bronchiole, there is no catheter that can be inserted into it. of!"

Lu Yongchang didn't speak, but frowned and looked at the holographic projection in front of him, trying to find a solution.

After thinking for a long time without finding the answer, he could only sit back in the chair, pretend to rest and close his eyes.

……

In the fluorescent green system space, a linear technology tree stands quietly in the void.

After Lu Yongchang took a deep breath, he focused on the slightly dim cursor.

The familiar dizziness came.