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Chapter 77 Centrifuge

 The original reporter, Yuki, and Liu Ri who followed also got off the car one after another.

"Senior..." Liuri also wanted to imitate Panike and pounce on him.

But Xiang Shan's stick touched his shoulder: "I'm sorry for the time being. I've made up my mind. I don't accept disciples. It's useless for you to pester me."

"Ah, senior, isn't this a sign of my sincerity?" The former earth-burrowing young man looked at Xiang Shan and said earnestly: "You have taught me martial arts, right? So it makes sense to take me under your wing, right?

?Ah, I have heard that there are indeed many knights who will test their disciples many times to judge their intentions before accepting them as apprentices. You, my hero, can't trouble me!"

Xiangshan withdrew his stick and shook his head: "So, I have taught you martial arts, are you still dissatisfied with it? Why do you have to formally worship me as your teacher? You and Yuki both learned from me together, right? You guys

Do we usually communicate together?"

Liuri nodded.

"I will teach you what I teach my disciples. So what are you dissatisfied with? Why do you have to be my disciple?"

Liuri said: "Do you need a reason?"

Xiang Shan was shocked: "Isn't it necessary?"

"Ah, the unknown hero, you will only take me further into the world if you become a master and apprentice!" Liuri said with the usual playful attitude of young people, "So you will accept me as your apprentice?"

"I'm sorry, I won't officially accept any more disciples until I use my own name again. So let's wait until that day."

Yuan Wenren sighed, pulled away from Liuri, and used the text window to comfort him a few words. Then, Yuan Wenren said: "Senior, you haven't introduced me yet. Who is this person here?"

Although everyone absolutely believed in Xiang Shan, unlike the two teenagers, the original reporter still asked about Ai Tielang's identity.

"This is Hero Ai Tielang Ai, his nickname is...hiss..."

Ai Tielang said hurriedly: "I don't dare to mention my little name in front of the unknown hero."

Xiang Shan pointed to the original person again: "This is my current partner, the original person."

"'Keep your guns straight'? Three years ago, I heard that you were ambushed by the government and your activities were reduced. I thought you had..." Ai Tielang cupped his hands at the original news source: "I have long admired your name."

The original person who heard the news also returned the favor: "The name of 'Lone Wolf Hammer' is much louder than mine."

Ai Tielang is good at using super-large-caliber sniper rifles. The guys he assassinates feel like they have been hit by a siege ram, hence the name.

The source of the news sent a document to Xiang Shan: "The results of this time have been written into a report. In addition, high-level materials for the support of the Earth-Drilling Dragons of the Nephilim line have also been brought here."

Xiang Shan nodded. Different parts of the prosthetic body have different requirements for materials.

Hardness, toughness, thermal conductivity, resistivity, etc.

Some parts also need to be mixed with pressure-sensitive materials to give them a "tactile feel" and enhance the warrior's ability to control the body.

These materials involve many different alloys. These alloys require different metal elements. These metal elements are enriched in different areas.

It would be easy to make ends meet, but if a knight wants to get a top-notch prosthetic body, he needs extensive help.

Xiang Shan looked at the report from the original reporter, nodded and said, "Thank you for your hard work, Xiao Yuan."

Xiang Shan thought for a while and asked: "Do you think the materials we have now can be used to make a long-running gas separation device? I mean a high-speed centrifuge or something like that."

"Ah?" The original informant was stunned for a moment, "Well, let me ask you, senior, what do you need..."

"Liquid helium, preferably with a little helium three."

Yuan Wenren said: "Senior, didn't you say before that you didn't plan to build a fusion furnace for the time being?"

"Of course it's not a fusion furnace." Xiang Shan shrugged, "The quantity requirements are much smaller. I need a refrigerant. Just mix helium three with ordinary helium four."

Helium-3 is an excellent nuclear fusion fuel. Moreover, it does not release neutrons during the fusion process - which will cause much less interference to the instrument. Moreover, neutron radiation is relatively difficult to block. Because neutrons

It is not charged, so it is difficult to restrain it with a strong magnetic field.

By replacing the reactor that releases neutrons with a reactor that does not release neutrons, the protective materials used to slow down neutrons in the prosthetic body can be removed, and a lot of things can be saved.

But the problem is that helium is too hot.

Helium is too light, so it can easily escape the Earth's gravitational range. Since the birth of the Earth, helium here has been in a state of constant escape.

And helium-3 requires α-decay radiation to be born - generally speaking, this will be completed by natural radiation that occurs inside the earth. And these helium-3 will come to the surface near the surface during the geological movement over the years. Therefore,

Some underground gas mines contain quite abundant amounts of helium-3.

But at this stage, all known mineral veins have been mined by patrons.

Collecting helium from seawater or air is very difficult.

But helium-3 is better than helium-4 as a refrigerant.

Using helium-4 as the working fluid of the refrigerator, the temperature can be pressed to 2K, which is two degrees Celsius higher than absolute zero.

However, if the cost is not considered and the refrigerant is replaced with helium 3, it can be further reduced to less than 1K.

The earliest quantum logic gates, which could only work near absolute zero, used this refrigeration technology.

Of course, Xiangshan doesn’t need this one. The limit state of this quantum chip can work in an 80K environment.

"It works" and "it works well" are not the same thing.

However, working in an ultra-low temperature environment can effectively reduce the interference of thermal noise.

Moreover, in ultra-low temperature environments, helium can also possess superfluidity and can flow through extremely fine capillaries or slits without obstruction or loss.

Coupled with high-strength capillary tubes, it can become an excellent rapid heat dissipation system.

For warriors, this is a very useful thing.

Yuan Wenren calculated for a moment and said: "It's impossible. No matter what design is adopted, the alloy on hand is not enough. And it will take a long time..."

Liuri also fell into deep thought: "Senior, if you are in a hurry to use it...hell, it seems that the several earth-burrowing dragons I know may not be able to do it."

Ai Tielang knew that Xiangshan was preparing for the quantum chip. After listening to everyone's conversation, he looked at the six-day righteous eyes curiously.

"Forget it, there's no rush." ​​Xiang Shan waved his hand, "Let's bury the vehicle."

The group returned to Jayhawk City.

Xiang Santo asked Iron Wolf to take everyone else to where the knight was staying, and then patted Youki on the shoulder: "Boy, come with me for a walk. It's time for the exam."

"If you fail, I will expel you from the school."


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