"Ma Guang, Wei Feng, do you know where Gu Yu is? I can't call him on his mobile phone? ”

After Miao Xiaoqin left Wu Ping's office, she immediately began to look for Gu Play.

She also promised Assistant Hu that she would report all of Gu Wan's final grades and performance as soon as possible so that the dean could review it.

It is a rare opportunity to perform, of course, you must grasp it well and grasp all the details clearly.

Who knew that Gu was playing this guy, and her mobile phone couldn't get through, so she could only rush to Gu Yu's bedroom to torture her roommates.

Ma Guang and Wei Feng jumped for a while: "Brother Gu is either in the laboratory, or learning to drive, I heard that he wants to learn to drive." Could it be that you are driving so your phone is silent and you don't answer the call?"

"He has to learn to drive for a day, won't he go back to school?" Miao Xiaoqin had a headache.

Ma Guang hurriedly replied: "If you are learning to drive, you usually practice for half a day." I don't think he took his meal card with him, and he will definitely be back before lunch. ”

Miao Xiaoqin looked at her watch, it was almost 11 o'clock, and it was estimated that she would have to report to Assistant Hu in the afternoon, so it was better to wait, and her homework was solid.

"Then I'll wait here for a while. That's right, Lu Wei. Miao Xiaoqin was bored, so she naturally wanted to find other stubble.

Lu Wei This is also a disaster, the roommate saw that the counselor was in a bad mood, so he betrayed him directly: "Maybe I play games in an Internet café." ”

The counselor immediately became angry: "Hmph, everyone thinks that the future of being admitted to the University of Science and Technology will be stable, and he has been addicted to online games for more than ten years, and he has hung up on high math this semester, and he has no points?"

The movement in Gu Yu's dormitory was too loud, which caused several dormitories next door to also notice, and many students heard that the counselor was here, but they didn't dare to come over, so they secretly pricked up their ears and watched.

At the same time, students who had laptops and were playing games in the dormitory immediately hid their computers and pretended to be very motivated.

What if the instructor eats gunpowder after a while and comes to his bedroom?

"Brother Gu, come back quickly, send this plague god away!" the students in the class were all praying there.

It didn't take long for the boys on the entire floor to be secretly attracted to this side.

Half an hour later, Gu Play was like the latest boss in Hong Kong films, Shi Shiran came back.

"Fengzi, the coach said that I practiced well, and he will make an appointment for me to take the second subject this weekend!" Gu Yu didn't know how much trouble he had caused at all, and he heard his voice before he saw him in the corridor, and he bragged with his roommate.

Pushing open the bedroom door, he retracted slightly: "Yo, Teacher Miao, you are also here." ”

Miao Xiaoqin controlled her emotions, hid her impatience and impatience, and asked with a pleasant face: "Gu Wan, do you know that the seven junior major courses you chose have five perfect marks in the final exam?"

"Oh, I didn't pay attention, but I expected it. Gu Play replied very lightly, "Didn't I pass the full score in the midterm?" ”

The implication is that there is nothing surprising about this kind of.

Those students who were already watching and waiting to send the plague god naturally heard the dialogues between Gu Play and the counselor, and they all covered their faces again.

The drought is really drought, and the waterlogging is dying.

Brother Gu got a full score in the sage test, and he didn't feel it.

Miao Xiaoqin almost stroked her forehead: "This time it's not as simple as getting a full score in the exam, Professor Wu's two courses, Introduction to Atomic and Nuclear Physics." The final additional question is made by you alone in the whole grade, and it is pointed out that the preset conditions of the problem are not the optimal solution.

Professor Wu asked me to tell you that you have worked hard in the past few days, so hurry up and expand the idea of solving that problem and write a paper for publication. ”

"Is this going to be published? I mean...... I don't even know about the Blue Star people, and I haven't even solved this kind of problem. I'm sorry, but I didn't know what was happening at the cutting edge. Gu Play was very surprised.

He didn't pretend, he was sincere.

Because he felt that the optimal solution in that problem was nothing on the earth, someone should have figured it out ten or twenty years ago, and he really didn't expect that the physics of the Blue Hole civilization would be so weak in this detail.

After all, it is impossible to find out everything when you check information and understand cutting-edge trends on the Internet before.

Therefore, with the strength of Gu Play, every year when I do research, I accidentally find a little bit that the earthlings have already conquered, but the Blue Hole civilization is still confused, which is very normal and belongs to the basic operation.

"What do you mean, 'You don't know about the Blue Star People', this has not been solved? "Miao Xiaoqin is angry and funny.

When they heard Gu Yu's words, it was like an earthling hearing a scientist say, "Are you earthlings so weak?"

The map cannon, as soon as it is opened, is a planet and a civilization, and it seems that the gap between the two sides is a pure hanging attack in the form of dimensionality reduction.

"Well, I didn't say I'm not a Blue Star, isn't that kidding, you can treat me as a Super Saiyan. Gu played a joke to alleviate the embarrassment and arrogance of leaking his mouth before.

In the eyes of the Super Saiyans, of course you are all scum.

Miao Xiaoqin interrupted his nonsense: "Stop talking nonsense, I want to ask you to explain what you are talking about in this topic, what are the mysteries, I will report to Assistant Hu and the dean in a while." ”

As she spoke, she took out the paper reviewed by Professor Wu and placed it in front of Gu Wan.

Other curious students, whether they understood it or not, also gathered around.

Gu Yu was not polite, he pointed out and said: "Professor Wu's atomic dynamics question is about isotope separation, and it is estimated that the original intention is just to test the knowledge of the most old-fashioned centrifuge principle.

Fifty or sixty years ago, when the ancients were researching the atomic bomb, the centrifuge was quite mature. Professor Wu may have been afraid that some of the juniors would read the historical materials and documents and directly set the data, so he changed the title.

In the title, the separation is no longer uranium-235/238, nor plutonium/radium, which are heavy radioactive element isotopes, but the isotopes of several elements with relatively light atomic weights are randomly selected. Then let the maximum efficiency of the separator design be calculated. ”

"Then is this no problem?" Miao Xiaoqin heard this, and she could still understand, as for Gu Wan's classmates, they had already begun to listen to the book of heaven, because this was originally a class for juniors.

However, Gu Wan's high-minded talk soon attracted other people who love to learn, and there were some juniors of the School of Physical Sciences on the upper floor of the dormitory building, who listened to everyone's legendary gossip and ran down to watch.

This year, Professor Wu's question also pitted them very badly, and they wanted to know if anyone could turn Professor Wu into a pit, which was very relieving to think about it.

Gu Yu also ignored the increasing number of onlookers, and continued to talk eloquently: "I estimate that the other seniors who made this question also understood the meaning of Professor Wu's question, so they used the traditional centrifugal design to separate the isotopic nuclei of medium and low mass elements.

However, Professor Wu ignored a problem - the centrifugal acceleration method is the most efficient in separating heavy elements, because after the surface electrons of heavy elements are removed, the electromagnetic force generated by the charge difference is relatively low in the mass ratio to the nucleus itself, so the efficiency of gravity centrifugation is relatively high when separating heavy nuclei.

However, if the atoms of small and medium-sized elements can deelectron on the surface and form an ionic state, the ratio between the electromagnetic force of the charge and the gravitational force of the atom will be relatively large. At this time, using the most basic electromagnetic induction principle, after ion acceleration, the difference between the deflection curvature and the acceleration efficiency of different atomic weight isotopes can be separated by magnetic field, which will be more efficient than pure centrifugation.

Therefore, when Professor Wu came up with this question, he didn't think about it in detail, because he was afraid that everyone would copy the ready-made answers, so he casually changed the heavy elements that had been used in engineering in history to light elements - in this question, carbon 12 and carbon 14 were specifically selected to separate - which missed the optimal solution ......"

Speaking of this, Gu Yu himself was also stunned.

He suddenly realized a problem.

The people of this world haven't even figured this out, so doesn't that mean that the world hasn't even invented an accelerator mass spectrometer?

Indeed, the accelerator mass spectrometer has no commercial value, and the earthlings created it for fun at the beginning, separating several worthless small and medium-sized atomic weight isotopes, such as carbon, nitrogen, oxyfluorine, and other isotopes.

The separation of these isotopes has no commercial value. Because it is not possible to make an atomic bomb like uranium-235, which is a heavy element, nor can it be used to make heavy water and hydrogen bombs, like the three isotopes of the lightest hydrogen element, deuterium tritium.

It is not surprising that the Blue Hole people are short-sighted and unwilling to spend money on the kind of atomic physics acceleration/separation equipment that seems to be unable to make money directly.

Let's take this paper first, and then slowly draw it up, maybe we can find a use for it in the future and invent it.

"Xiao Gu, what's wrong with you? "The counselor was still there and patient.