novel for you Page 360
Page 360
Seeing Chen Nuo leaving, a teacher stood up, walked up to the podium, and knocked on the table.
Students, some of you have not been exposed to differential geometry, and you may not understand it well, but
The teacher looked around with a serious face: But, I can tell you very responsibly, if you study according to what Professor Chen taught, you will get twice the result with half the effort, and this course will be easier to study.
If it wasn't for Professor Chen's request, we wouldn't upload the contents of this point on the Internet at all.
After a brief silence in the multimedia classroom, the students' discussions broke out.
Such an exaggeration, it almost became a unique skill?
When I go back later, I will study this video repeatedly without missing a single word.
I have a hunch that this course of differential geometry will be the best grade of all the courses in my four years of college.
Teacher, you can upload this video, don’t edit it or keep it private, we have a record.
The teacher in charge of the video was very speechless. Professor Chen had already spoken, so who dared to keep it private.
The students walked out of the multimedia classroom and were still discussing. The smiles on their faces seemed to have picked up millions, which made other students passing by curious.
When Chen Nuo returned to the office, he was in a very happy mood, and he was the most relaxed when he was with the students.
Seeing Jiang Shuai, Shen Min, and Fu Heran who were researching the subject in the office, Chen Nuo spoke.
Jiang Shuai, call Wei Feng and the three of them, and come to me in the afternoon, I have something to tell you.
Chapter 618
When you come here later, your voice will be quieter, the professor is discussing the problem with Junior Brother Heran!
After Jiang Shuai sent a message in their small group, he focused his attention on Chen Nuo and Fu Heran.
Impressively, the non-commutatable SU(2) group is a suitable symmetry group, and thus the inference
Fu Heran frowned and pondered for a while, then said: Professor, we assume that the coupling constant g is small and nonlinear
What is the significance of your introduction of the dysprosium-schwinger equation?
Professor, this is a set of coupled equations of n-point functions, which form a hierarchy, which means that the equations of n-point functions will depend on (n+1)-point functions
In Chen Nuo's office in Huaqing Numerous Academy, Chen Nuo was watching Fu Heran's research progress during this period, and asked a question from time to time, and Fu Heran could answer it fluently.
Chen Nuo's eyes were full of approval.
But the two of them were silent, suffering from Jiang Shuai, Shen Min, He Weiming and others who were watching the battle. Jiang Shuai and Shen Min were better, after all, they were studying mathematics, so they could understand a little bit occasionally.
The three of He Weiming are majors in material science, and when they came here just now, they heard the discussion between Chen Nuo and Chen Nuo, and they were completely listening to the heavenly scriptures.
The five of them gave up after listening for a while, tiptoed out of the office, and stood in the corridor basking in the sun while playing with their mobile phones.
Huh?The professor is on the trending list again?
One, ten, one hundred and seventy-six million views?What did the professor say again?
As soon as Jiang Shuai took out his mobile phone, he saw the news being pushed and clicked in. Several other people also surrounded him.
"The exclusive secrets of the Filipino award boss, the winner of the Wolf Award shows his own experience."
This is the main title of the video, and then there is a subtitle of "Professor Chen Nuo from Huaqing takes you into differential geometry, you deserve it!".
Looking at the title of the video, the few people were quite speechless, and Huaqing even started a headline party. After listening for a few minutes, the few people sank into it.
The time of immersion is always the fastest. After watching the video in an hour, seeing the tens of millions of views and comments from viewers, everyone felt emotional.
Hey, this group of students is really happy. Professor Chen actually sorted out the course of differential geometry for them. I feel that following the professor's rhythm will get twice the result with half the effort.
No matter how happy they are, can they be as happy as us?We have all become students of the professor.
Haha, yes, after hearing what the professor said, I think I have to find some time to re-study differential geometry by myself, so as not to discuss the problem with the professor, we are like a fool.
It's you, don't get involved with me and Minmin!
Several people talked about Dashan in low voices, and Chen Nuo and Fu Heran finally finished their discussion in the office.
Chen Nuo's eyes were full of surprises, and Fu Heran couldn't finish it.
Shen Min and Zhao Xiaoxiao, who were always paying attention to the movement in the office, pulled a few people together, opened the door and entered the office.
Professor, have a cup of tea!
Shen Min walked to the tea table and poured a cup of tea for Chen Nuo, and handed another cup to Fu Heran.
Then he said softly: Professor, how is the progress of Junior Brother Awesome?
Chen Nuo took a sip of tea: At present, it is correct. If there is no accident, a general solution should be found, but the time is hard to say.
yeah!
No one in Jiang Shuai let out a shout of excitement, and then gave Fu Heran a thumbs up.
What were you muttering outside just now, so excited?
Professor, you're on the trending list again.
Without waiting for Chen Nuo to ask, Jiang Shuai handed over the phone.
Chen Nuo scanned it once and knew why. Looking at the students' comments, Chen Nuo suddenly felt that being a teacher is very good, preaching, receiving lessons, and solving doubts.
He also secretly thought about whether he should teach the learning methods of other mathematics courses in every class in the future, so as to help students improve their learning efficiency. This is extremely intentional.
I have something to ask you to come back, so sit down first!
Chen Nuo got up and went to the desk, took out a small white porcelain bottle from the drawer and handed it to He Weiming.
The small white porcelain bottle contained 6 elementary intelligence capsules, one of which was won in the lottery, and five were bought by him in the system mall. Naturally, the small porcelain bottle was given by the system when he bought 5 elementary intelligence capsules.
This is the immunity-boosting medicine prescribed to me above, and each of you will take one.
Chen Nuo found an excuse casually, and He Weiming shook his hands, and said hastily: Professor, this is too expensive, we can't take it.
Several other people also hurriedly postponed, this medicine is too expensive, how can they afford it.
They didn't have the slightest doubt about this matter. Although there was no special medicine announced above, it was conceivable that there must be some. As Chen Nuo, he must be qualified to equip it.
What nonsense.Chen Nuo didn't wrinkle: Although there aren't many of these things, I won't be missing a few of them, eat them quickly, and it won't be good if the effect of the medicine evaporates in a while.
Seeing the hesitation of several people, Chen Nuo feigned anger: What's the matter, are you afraid that what I gave you is poison?
no no
Several people waved their hands hastily, He Weiming gritted his teeth, poured a pill one by one, returned the bottle to Chen Nuo, threw the medicine into his mouth, and swallowed it with his head raised.
It's tasteless!
Well, I don't feel anything!
You think this is a panacea!
Hearing the murmurs of several people, Chen Nuo rolled his eyes angrily.
That's fine, it's fine for you to know about it yourself, don't say it outside, lest it make it difficult for me to do it.
Everyone nodded in unison, and Chen Nuo continued: In the next half an hour, one person will report on their scientific research progress. After the report is over, we will have dinner, Wei Feng, starting with you.
OK, Professor!
When it came to the research topic, everyone became serious. Wei Feng handed the organized course to Chen Nuo, and then moved a whiteboard and started talking.
Professor, it is estimated that by mid-April, the photoelectric efficiency will reach between 4% and 38%.
Ten minutes later, Wei Feng finished his speech, and mentioned the expected goals by the way.
good very good!Chen Nuo was not stingy with praise: photoelectric efficiency is one aspect, and on the other hand, the superlattice formed between the inorganic layers can act as a quantum well. Here you focus on research.
Chen Nuo didn't say anything, and he could point out some problems and come up with new ideas as soon as he spoke. Although everyone had encountered it many times, they were still very shocked every time.
In their view, Chen Nuo's brain is simply more powerful than a supercomputer.
Three hours later, it was close to six o'clock in the afternoon, and the research topics of the six people were reviewed by Chen Nuo.
Let's go, treat you to a big meal.
Chen Nuo took a few people to Chuandu Restaurant for a big meal, and then went back to their respective homes.
After returning to the study, Chen Nuo received a call from Li Hong, inviting him to participate in tomorrow's hologram press conference. Chen Nuo didn't agree or refuse, but just said to watch his time.
After finishing all this, Chen Nuo picked up the theoretical part of controllable nuclear fusion and read it.
Chapter 619 System, You Are Forcing Me To Solve The Seven Millennium Problems
Whenever Chen Nuo entered the study at night, the whole courtyard was extremely quiet.
Other courtyard houses within 50 meters of the surrounding area have been notified.
If you can bear it, you can bear it, if you can't bear it, then move out.
If you dare to make trouble, go directly, no matter what background you are, you are so overbearing.
In the study, Chen Nuo was flipping through the papers quickly.
It wasn't until [-] or [-] o'clock that Chen Nuo put down the nearly [-]-page paper, saying that the paper was inappropriate because it was a document on nuclear fusion science popularization.
After rubbing his sore eyes, Chen Nuo closed his eyes and began to sort out the information in his mind.
Nuclear fusion refers to the fusion of atomic nuclei by light atoms under ultra-high temperature and ultra-high pressure conditions to generate heavier atomic nuclei and release huge energy.
Scientists divide nuclear fusion into three generations according to the difficulty of technology and the degree of nuclear pollution. The first generation is deuterium-tritium fusion and deuterium-deuterium fusion, the second generation is deuterium and helium 3, and the third generation is helium 3 and helium 3.
The content of deuterium in the earth is very large, estimated to be 10 trillion tons, but considering the reaction cross section of deuterium and the problem of bremsstrahlung, it is difficult to make the input greater than the output as the temperature increases.
The stock of tritium in nature is only about five or six kilograms. Although the amount is small, we can make it from nuclear reactions. Bombarding lithium-6 with neutrons can produce tritium, and the stock of lithium-6 in nature can last for thousands of years.
Although there are a lot of deuterium and tritium, neutrons are produced in the process of nuclear fusion, which will still cause pollution. Once a leak occurs, the consequences will be disastrous.
However, the reaction between helium 3 and helium 3 in the third generation will not produce neutrons, even if the leakage is not a big problem.
Then the problem comes again, there is very little helium 3 on the earth, but there are so many on the moon, there is so much that it can wipe out the human beings, and it is impossible to run out.
Only by completing the first generation of controllable nuclear fusion can humans get a large amount of helium 3 from the moon and completely solve the energy crisis on the earth.
So the third generation of nuclear fusion is the ultimate goal?
After sorting out the content of nuclear fusion, Chen Nuo muttered to himself, and then began to sort out how to realize the controllable technology of nuclear fusion.
But controllable nuclear fusion is not easy, but controllable is controllable, but unfortunately it cannot last.
After studying it for seven or eighty years, the longest it lasted was more than 80 seconds, and the energy gain was only 100, that is, the energy that ignites nuclear fusion is twice the energy produced by nuclear fusion.
There are two technical difficulties in achieving controllable and durable nuclear fusion, namely temperature and constraint time.
Temperature, simply speaking, how to ignite fusion materials, about 1 million degrees is needed to ignite fusion materials.
At present, the most commonly used method for this problem is to use multiple ultra-high-power lasers to irradiate the reactants at the same time and ignite the reactants.
The constraint time is how to ensure that the furnace used for nuclear fusion will not be burned through at such a high temperature.
Both the material that ignites nuclear fusion and the temperature of fusion have reached 1 million degrees, and no material on the earth can resist this temperature.
The reason why nuclear fusion at this stage can only last for about a hundred seconds is mainly because the material cannot sustain the ultra-high temperature and pressure of nuclear fusion.
So scientists invented the tokamak, and separated the atoms of the fusion material to make a free-flowing plasma. Using the tokamak to create a super-strong magnetic field to confine the plasma, let them rotate at high speed in the air, without Allow the plasma to hit the furnace walls.
But this creates a contradiction. To ignite the fusion material, the material needs to be stationary in a certain place. The consequence of this is that the furnace will be burned through. If the material is suspended, the fusion material cannot be ignited accurately.
This is where the difficulty of controlled nuclear fusion lies.
In addition, the problem of plasma density must be solved, which is related to the durability of the reaction and the energy gain. If the density is low, the nuclear fusion will automatically stop or the discharge will be insufficient, and the reaction will return to its meaning.
It is also necessary to solve the problem of how to derive the current generated by fusion. The current generated instantaneously reaches MW. It is okay for existing materials to persist for a while, but it will not work for a long time.
Chen Nuo let out a long sigh, is it difficult to control nuclear fusion?
It's not hard.
As long as a material that can withstand a high temperature of [-] million degrees is found, controllable nuclear fusion is as simple as drinking water.
But based on Chen Nuo's understanding of materials, it is estimated that it is impossible to find such materials in the entire solar system.
To put it bluntly, two problems need to be solved in order to achieve nuclear fusion. The first is to solve the material problem, preferably a room temperature superconductor. First, it can withstand ultra-high temperature and high pressure for a longer time. Second, the same current produces Stronger magnetic field reduces energy input;
The second way is to reset a set of devices and cooperate with new materials to generate a stronger magnetic field to confine the plasma and let the plasma follow our route.
After writing this, Chen Nuo paused for a moment, took a red pen and drew a circle around the words "Plasma Route", and fell into deep thought again.