Xu Mang didn't want to cause trouble in Columbia University. The reason why he ran into other people's classrooms was to see what advancements Columbia University had in teaching, which positioned physics as one of the most outstanding majors. If so, he would copy it.

come over.

There is no way to cross the river by feeling the eagle sauce, it is better than crossing the river by feeling the stones.

However, Xu Mang regretted that he did not get any new feelings. He basically read from the textbook, and then analyzed it based on a certain classic example and talked about what he paid attention to. It was no different from what he usually did.

Teaching is pretty much the same.

Xu Mang felt very regretful about this. He should go to the library and see what the occupancy rate was. Through the analysis of the occupancy rate, he could basically judge the teaching quality of this school.

So embarrassing

Sitting like this is so boring.

Xu Mang was about to die just sitting there. He was currently teaching the calculation approximation method of quantum mechanics. In fact, these things were just like that. The main reason was that there was no point in listening to these things after he had reached the point where he was familiar with them.

"The motion of molecules is more complex than that of atoms."

"Molecules not only involve the movement of electrons, but also involve the movement of atomic nuclei. In the center-of-mass coordinate system, each nucleus in the molecule makes small vibrations near its equilibrium position." The professor talked to the students in the audience based on the pictures projected by the projector.

Explain the vibration and rotation of molecules.

At this time,

The professor suddenly noticed that one of the more than 40 students was in a daze. The most important thing was that he didn't even bring a notepad, he just sat there in a daze.

Although many students in the university focus on self-study, and in their spare time they either stay in the dormitory reading, stay in the library reading, or conduct research in the laboratory, but the most basic etiquette in class must be followed.

What kind of class can you attend without a textbook, a notepad, or a pen?

"Ahem!"

"Please pay attention to this classmate." The professor looked at Xu Mang and said seriously: "If you don't bring anything with you next time, then you won't come to my class."

The sudden reminder was hard to guard against. Xu Mang was still deep in fantasy, and then he was awakened by the professor. Confused and at a loss, Xu Mang nodded. In fact, his behavior was just a subconscious behavior.

The class continued and did not stop because of this small incident.

"Hey!"

"Sister!" Xu Mang silently approached the blond woman next to him and said with a smile, "Can you share your textbook with me?"

"No problem." The blond woman agreed to Xu Mang's request.

This sister looks very ordinary, with blond hair and blue eyes. But to Xu Mang, it seems that all foreign women are like this. Unless they are special Hollywood movie stars, Xu Mang has a hard time distinguishing the appearance of foreign women.

.

"Why have I never seen you? Are you here to listen?" The blond girl looked at Xu Mang curiously. There were no oriental faces in this class, so it was easy to spot the extra one for no reason.

"ah?"

"I am a spectator." Xu Mang nodded.

"Astronomy major?" the blond woman asked: "Generally, astronomy majors will come to attend lectures, but you may have come to the wrong place. The theory of relativity is only available on Thursdays and Fridays."

"oh"

"It's okay!" Xu Mang said with a smile, "I'm a very studious person."

In the following time,

Xu Mang and the blond woman chatted about some interesting humanistic stories, but their voices were very low and could only be heard by each other. During the chat, the blond woman felt very good about Xu Mang, and then she actually proposed

After class, go to the coffee shop to sit.

joke,

Xu Mang didn't dare agree to this request. He might have to sleep on the sofa for the rest of his life.

And I don’t find anything special about this blonde woman. Compared with Audrey Hepburn, she is simply far behind.

"sorry."

"I'm married." Xu Mang secretly took out his phone and unlocked the screen. The screen showed a photo of him and Xiao Man. From the smiles of the two of them, you can see that the word happiness was printed on each other's faces.

""

"I'm sorry." The blond woman felt a little embarrassed and said to Xu Mang, "I didn't know you were married."

Looking at the disappointed face of the blonde woman, Xu Mang sighed helplessly and said calmly: "It's not your fault, it's my fault. I deliberately concealed my marriage. If I got married,

If this news gets out, single women all over the world will cry for me."

I

this

The blonde woman's face was full of confusion, and her expression gradually became a little lost.

"Casey!"

"Suppose the structure of carbon dioxide is o=c=o, a straight molecule, the equilibrium distance between two adjacent atoms is a, and the elastic force coefficient of two adjacent atoms is k. What is the Hamilton quantity? Please write it down

expression."

The professor suddenly asked the blonde woman with a confused face.

The sudden question made the girl even more confused. She had been chatting with Xu Mang just now, and then she missed a period of time and space. When she came back to her senses, she found that the world had changed. How could she suddenly reach the vibration of a three-atom linear molecule?

Too bad,

Don't know at all.

The blonde girl was a little frustrated, and even a little scared at the moment, fearing that her credits would be affected.

At this time,

Xu Mang silently took a pen and wrote down an equation on a notepad. It was the general form of the Hamilton quantity, but it was changed according to the structure of carbon dioxide.

Finished writing,

Xu Mang pointed to the equation above.

After seeing the equation written by Xu Mang, the blond girl from Casey was a little at a loss. She didn't believe that an astronomy student could actually give an answer to such a professional physics problem. This was definitely unreliable.

However, I have no other choice at the moment

final,

The blond girl could only walk slowly to the podium according to the equation given by Xu Mang. This short journey of about ten seconds took a century in Cathy's spiritual world.

The professor didn't think Kathy could write this equation. The reason why he asked her to come on stage was just to give her a warning not to do things that had nothing to do with class during class, such as staring at the boy.

In panic,

Casey wrote down an equation that Xu Mang gave her, looked at the professor carefully, and said, "Professor is here."

""

Will she?

Impossible!

Have you previewed this part in advance?

When the professor saw that Casey had actually written out the equation without any mistakes, he was a little confused for a moment.

"good!"

"It seems that you have previewed the approximation method of quantum mechanics in advance." The professor could only follow the words and praise Casey: "Go back."

ah?

Is this right?

No way?

After hearing the professor's words, the girl Kathy realized that the boy sitting next to her was the extremely narcissistic boy. He had a little understanding of physics. It felt like he didn't attend class much and didn't even have books.

.

Coming confused,

Go confused,

Casey still can't figure out why the boy knows this equation and doesn't look like a top student.

Returning to his seat, Casey took a serious look at Xu Mang. This man with an oriental face looked a little cute. He was the kind of person who didn't seek advancement, just waited to die, and was a little lazy.

Bad bitch.

look familiar!

He looks very familiar. I've vaguely seen him somewhere, but I just can't remember who he is.

"Who the hell are you?" Casey asked.

"I am just a different kind of firework." Xu Mang smiled and said calmly.

Neuropathy!

Casey directly defined Xu Mang as a psychopath, and the illness was not serious, but he was also hurt a lot because of it. Even a psychopath knew about a problem, but he didn't know it, so he was worse than a psychopath.
To be continued...