Ultimate Scholar

"That's all for today's class."

"Also, about the final exam..."

Standing on the podium, Li Mu looked at all the students in the lecture theater.

All courses for one semester have ended.

But now there are still countless students who come to his class, almost filling the entire classroom.

Including many people still standing in the corridor.

Originally, according to his estimation, it was only the first few classes at most, because his fame would attract many students to join in the fun, and after a while, there would be fewer students. What he did not expect was that his class effect was not bad. , On the contrary, more and more mathematics majors in the whole school are attracted by his class.

There are even some students from other cities who will drive here from other cities because of his class, just to listen to one of his classes.

All in all, every class he has now is almost equivalent to an open class, and his class schedule is almost not disseminated among students majoring in mathematics in the UK.

Of course, as time passed so quickly, the class of this semester is still coming to an end.

And when it's over, there will naturally be an exam.

It's just that, after hearing that the exam was coming, among the hundreds of students in the audience, there were only more than 50 students sitting in the front rows.

After all, these students are the real students of Li Mu's number theory class, so only they need to face the exam.

Li Mu smiled slightly: "The time for the exam will be next week, and the focus of the exam..."

All of a sudden, the more than fifty students all pricked up their ears, staring closely at Li Mu's mouth, wanting to know what the key points of the exam would be. \b

As a result, Li Mu played tricks that all the teachers have played: "What I have taught in class is the key point."

Immediately, the more than 50 students were wailing, while the other 200 students who came to take the class laughed one after another. Fortunately, they just came to take the class and did not need to take the exam.

God knows how difficult their Professor Li's questions will be.

Maybe the bottom line is to use some unsolved mathematical problems as the subject matter-who made Li Mu like to use this kind of problems to talk about in class?

"Okay, that's the end of this semester's course. Thank you for your company this semester. For me, it can be regarded as meeting hundreds of friends of my age."

"So, see you next term then, friends."

"get out of class is over!"

After Li Mu announced the end of get out of class, all the students in the audience suddenly stood up in a tacit understanding.

"Professor Li, you have worked hard!"

Li Mu waved his hands with a smile, and then began to tidy up the desk, preparing to leave the classroom.

But at this moment, a student suddenly shouted at him: "Professor Li, I heard that you are going to complete the Navier-Stokes equation among the seven major mathematical problems of previous years at the International Congress of Mathematicians." The question is, is this true?"

Hearing this question, Li Mu was taken aback for a moment, then raised his head to look at the student.

In fact, other students also looked at him.

He couldn't help but smiled and shook his head, and said, "I don't know how many people have asked me this question."

Wiles and Richter asked, Terence Tao asked, and now his own students also asked.

In fact, among the friends I met in China recently, many people came to ask him about this matter.

It seems that people in the entire mathematics circle think that he has completed the proof of this problem-although in fact he is.

The students present all laughed, and the student who asked the question also laughed at this time: "These are the seven major math problems of the millennium! Of course we all want to know."

Li Mu shook his head, then said with a smile: "About this issue...just pay attention to my report when the time comes."

"I believe, you will be pleasantly surprised."

The students present looked at each other in blank dismay, but then, their eyes showed anticipation.

Since their Professor Li said so, there must be a surprise?

...

The one-semester course is completely over.

As for the class about the next week's exam, he, the full professor of mathematics at Merton College and All Souls College, would not be required to be the invigilator.

Speaking of which, although he is also a full professor of mathematics at All Souls College, since All Souls College has no mathematics majors for the time being, there is no need for him to attend classes.

Of course, this is also mainly because All Souls College does not accept undergraduates but only graduate students, and the number of graduate students it recruits is very rare, so the professors of All Souls College are more suitable as researchers than professors. \b

However, for Li Mu, this can be regarded as lightening his burden to a certain extent.

Not only can you get paid for nothing, but you don't have to do anything.

Isn't this the perfect job?

...

After finishing the course, Li Mu went straight back to his office.

Although there are no classes, people still have to stay in school anyway.

Of course, his office is also quite spacious, with several large desks, and its configuration is exactly the same as that of other full professors. The only thing that is incompatible with other professors' offices is that there is no student in his office.

However, it will be available after the next semester starts, so there is no need to worry.

Sit down and lean on the comfortable office chair.

Li Mu entered his mind.

[The current brain computer level is level 4, and the upgrade progress is 45121/100000. 】

Withdrawing his thoughts from the depths of his mind, Li Mu narrowed his eyes.

The proof of the existence and smoothness of the solution to the Navier-Stokes equation allowed him to complete the previous task, and at the same time, he also received a huge energy value reward.

In addition, there is an opportunity to simulate the real space environment.

"Level 4 real space environment simulation opportunities..."

Li Mu remembered the directional extraction opportunity of the bottom-level operating code of the fourth-level universe that he had obtained before.

"Now, it can be used."

Without getting too entangled, he entered the computer in his mind again.

"Exchange the simulation of the four-level real universe environment into the extraction of the bottom layer of the universe."

"Directed extraction using a four-level universe substratum program."

Then, a panel appeared in my mind: [Please choose the direction of directional extraction: practical technology or theoretical knowledge. 】

Li Mu made a choice: "Choose practical technology."

[Please select a specific direction: material technology, engineering technology, energy technology, structural technology, chemical technology, biotechnology, computer technology...]

The various subdivision directions made Li Mu feel a little difficult to choose for a while.

What direction should I choose?

"Forget it, order soldiers and generals, order soldiers and generals, I will choose whoever I choose... whoever!"

"Well... it's material technology."

Li Mu raised his eyebrows, and then relaxed them.

If it is material technology, it is not bad.

The fundamental problem of the difficulty of all technologies in the world lies in the material. As long as the material is solved, there will be no problem.

Take controllable nuclear fusion as an example. The biggest problem with controllable nuclear fusion is materials, such as superconductors, and materials for the first wall. Controlled nuclear fusion can be realized in situ. Similarly, if the binding force of superconductors on these plasma flows can prevent it from damaging the first wall material at all, then controllable nuclear fusion can also be realized in situ.

"So what kind of material technology can I get this time?"

Li Mu geared up, and then, "Choose material technology."

"The extraction direction has been determined to be practical technology-material technology."

"Start extraction."

The sound of the system sounded until a moment later...

"The underlying program of the universe was successfully extracted!"

"It is being translated into a language that the host can understand..."

Finally, Li Mu realized that there was an extra piece of material in his mind.

【Detailed explanation of superconducting material technology】

Li Mu was stunned for a moment.

"Huh? Superconducting... material?"

Is it really just a miracle?

Superconductivity Superconductivity, what is superconductivity?

Simply put, it is a superconductor.

Ordinary conductors will have resistance, so in the process of power transmission, there will be current loss, and these lost currents will generally be lost in the form of heat energy, just like a mobile phone getting hot. After touching it, for example, high-voltage wires will also generate heat, this...

Ahem, all in all, the key to superconductors lies in their zero-resistance properties, so that there will be no current loss during the transmission of current.

Of course, zero resistance is only one of the properties. In addition, superconductors can also provide a very strong magnetic field, which is called complete diamagnetism, and it is also called the Meissner effect.

Such materials can be regarded as the jewel in the crown of materials science, and their status is like the status of Goldbach's conjecture in the mathematics world—no, more rigorously, it should be the status of Riemann's conjecture in the mathematics world.

With zero resistance and the Meissner effect, superconductors can be used in a wide range of fields, such as nuclear magnetic resonance in hospitals and large particle colliders. Particles are accelerated by a strong magnetic field provided by a superconductor.

Ideally, the range of applications that can be used is even more, such as replacing the current high-voltage transmission, and using it as energy storage equipment, etc. Once these are used, they will have great significance for people's livelihood, and even more so. Needless to say, it is a help to the study of controllable nuclear fusion.

Unfortunately, this is only ideal.

In fact, the high-temperature superconductors that have been researched so far are not very plastic, so the scope of application is not wide, and the low-temperature superconductors need to use expensive liquid helium to maintain the superconducting state, and the cost is very high.

So like in a hospital, once an accident occurs in the MRI room, the loss will be huge.

Li Mu narrowed his eyes.

"So, what will the superconducting technology created by this level 4 brain computer look like?"

Without much hesitation, he looked directly at it.

Then, he was surprised.

The detailed technical explanation here actually completely explained it to him, including BCS theory, high-temperature superconductivity theory, and even...

The most fundamental principle of superconductivity!

For now, there are only two perfect theories about superconductivity, BCS theory and GL theory, and GL theory does not explain the existence of superconductivity in detail, but it predicts the second type of superconductor, while BCS theory does not explain the existence of superconductivity in detail. Very good microscopic explanation of Type 1 superconductors.

But in any case, the explanations for the second type of superconductors and the explanations for high-temperature superconductors have not been fully resolved so far.

But now, in this detailed technical explanation, all the knowledge and content in this area are actually included in it.

Li Mu was almost completely undistracted, and immersed all his thoughts in this material, understanding it completely from beginning to end.

Until finally, he opened his eyes, and his eyes showed satisfaction and a little regret.

"Unfortunately, this information does not fully explain the root cause of superconductivity."

But soon, some shock appeared in his eyes.

"But...according to some of the theories given in it, the most fundamental reason for superconductivity comes from...dimensional force!"

After reading this material, what shocked Li Mu the most was this, that dimension force actually played a role in it.

"Just like in the BCS theory, the Cooper pair is the main reason for the formation of the principle of superconductivity, and the dimensional force also plays a role in the formation of the Cooper pair."

"In high-temperature superconductors, although Cooper pairs cannot be formed between electrons due to the temperature, due to a special mechanism, the dimensional force plays a role in it, and finally makes the movement of electrons lose resistance..."

Li Mu was amazed.

The dimensional force will play a role, although it is unexpected, but it is also reasonable. As the basic force of the fundamental force, the dimensional force should indeed play a role in this physical phenomenon, but unexpectedly, it will play a role in superconducting play such a huge role in it.

"So, although the fundamental principle of superconductivity is not fully explained in this technical document—probably because the level of the brain computer is not enough to give a complete explanation."

"But as far as the current situation is concerned, it must be related to dimensional force."

Moreover, Li Mu had a hunch that in this deeper place, more profound principles related to dimensional force will be revealed.

"It seems that in the next period of time, we can start research in this area."

Explaining the fundamental theory of superconductivity is the common goal of countless scientists all over the world.

Just like condensed matter, a major branch of physics, one of the most important research directions is superconductivity. \b

At this moment, the system sound rang.

"The task of upgrading the computing power level is announced——"

[Superconducting! Superconducting! 】

[Mission introduction: Have you ever thought about why this universe designed superconductors, which are perfect materials in terms of properties and functions? 】

[Task purpose: explain the theory of superconductivity. 】

Seeing the interrogative voice in this new mission introduction, Li Mu fell silent for a moment.

Yes, why does this universe "design" materials like superconductors?

In other words, why do materials "design" superconducting properties?

Let a conductor, at a certain temperature node, or at a certain atmospheric pressure, the resistance drop like a cliff and become zero?

At this moment, Li Mu had to be amazed by this phenomenon again.

Perhaps, Camerin Onnes, who was the first to discover superconductivity, had this experience the most.

All minds were taken back from marveling at the mysteries of the universe.

"Although the world is amazing, as a human being, we still have to return to reality."

Li Mu sighed slightly, as if he sometimes thought, if there are aliens in this universe, what are those aliens doing on a living planet hundreds of thousands of light-years away?

It's just that after the reverie is over, you still have to do what you should do now.

To some extent, this is a kind of unfreedom.

"Then I'm going to try to achieve that freedom."

"Then the first thing to do is to explain the principle of superconductivity."

Li Mu was sure.

"But before that, a little millennium puzzle shock has to be given to the mathematics world."

...