The question in Lin Fan's hand is about an electrokinetic problem, although there is only one formula on paper, but with rich experience... Lin Fan can probably know what direction it is, and if his guess is correct, it is estimated that it is the focused reaction of the plasma strong current discharge on the antiproton beam.

Obviously,

Gauss's theorem is used to obtain the magnetic field distribution first, and then the radial equation of motion is derived into an integral formula, and then the correct focal length can be obtained.

For Lin Fan, there is no pressure at all, but the calculation is a little complicated... That's all, in fact, Liu Yun'er will not be very normal, it is all within the scope of physics, but each category in it is very different, after all, there is a specialization... Not everyone is called Lin Fan.

"That's right!"

"Is your friend related to astrophysics?" Lin Fan asked curiously while calculating the equation, "I have an intuition... Your friend should be involved in a collaborative project, and that project might be about pulsars. ”

“...”

"I'm just weird... You don't even understand this, do you?" Liu Yun'er looked at Lin Fan in surprise, to be honest... Song Yuxi is really in the field of astrophysics, and her identity is a bit complicated, she is not an official professor at this university, but belongs to another hiring... Song Yuxi's essential job is to work at a certain astrophysics research institute.

"Just kidding!"

"No one understands electrodynamics better than me!" Lin Fan shouted as he made a gesture to understand the king.

Liu Yun'er didn't pay attention to this arrogant 'understanding king', and drove the car attentively, which was different from the arrogant driving style before, this time she drove very smoothly, in order to give the understanding king around her a quiet environment.

soon

In less than ten minutes,

Lin Fan solved this problem in his hand, and wrote almost half a page of content.

"Alright. Lin Fan said with a smile: "You promised me to waive my fuel fee for a month, but don't break your promise when the time comes." ”

"It's up to you. Liu Yun'er said indifferently.

"Absolutely!"

"Such a simple question... If it's wrong, I don't even have to do it. Lin Fan said with a smile.

Suddenly

These words made Liu Yun'er angry, what is such a simple question, if it is wrong... You don't even have to do it yourself, so what kind of creature do you belong to?

"Then I won't... Can you only be a microorganism?" Liu Yun'er glanced at Lin Fan and said calmly: "I found that you are a very cheap person... Bad, cheap and scumbag. ”

"That's not what I meant. ”

"You don't always over-interpret..."Lin Fan said helplessly: "How can you be a microbe? How can a microorganism have your ability to interpret like this, I mean... Always... Isn't that right? It's you... You know anyway!"

"I know a!"

"Okay, you don't have to say it... You're bad, cheap, and scum!" Liu Yun'er directly labeled Lin Fan with a brand new label.

In this regard,

Lin Fan didn't feel anything uncomfortable, anyway, he was already a scumbag, so what if he was a little scum?

Soon arrived at the drop-off location,

Lin Fan got out of the car as usual, and the rest of the journey needed to be carried forward by his feet.

...

When I got to my office,

Liu Yun'er first sulked alone for a while, and then took out her mobile phone to make a call to Song Yuxi.

"Rain Creek..."

"Are you at school?" asked Liu Yun'er.

"That's right!"

"There's my class at half past nine in the morning. Song Yuxi smiled and said, "What's the matter? Does my little Yun'er baby miss me? Then I'll come to you now." ”

"Hmm. ”

"It just so happens that I'm looking for something for you. Liu Yun'er said.

After hanging up the phone, in less than five minutes, the door of the office was pushed open from the outside, Song Yuxi walked in, and when he saw Liu Yun'er, he said with a smile: "Yun'er baby... Why are you so proactive today? I'm usually here to make an appointment with you. ”

"One thing for you. Facing the enthusiastic Song Yuxi, Liu Yun'er was still expressionless, took out an A4 copy paper from the drawer, and said, "The question you gave me yesterday... I've solved it for you, you see if there are any problems. ”

Song Yuxi was stunned for a moment, hurriedly walked in front of her, picked up the copy paper from the table, and read it carefully, in less than a few minutes... looked at Liu Yun'er in front of him in horror, and there was a light in his eyes.

"Yun'er?"

"I love you to death!" After the shock, there was endless excitement, Song Yuxi hugged Liu Yun'er tightly, rubbed his face against the refrigerator, and said happily: "I really love you to death... You helped me solve a big problem!"

But

Song Yuxi suddenly reacted, as if Liu Yun'er said yesterday that she wouldn't, so why did she help herself solve it?

"That's not right!"

"No, no, no, no... You told me yesterday that you wouldn't, and you don't know anyone who can solve this problem, so what's going on?" Song Yuxi asked curiously.

Faced with this problem,

Liu Yun'er had already made preparations, and said indifferently: "I won't before... But for your sake, I specially found the old professor who guided me when I was studying abroad..."

"Wow!"

"Yun'er..."

"It's a pity that I'm a woman, if I were a man, we'd be together. Song Yuxi sighed and said helplessly: "For my sake, I didn't hesitate to put down my body to beg others... Yun'er, don't worry, as long as you are still single, I will accompany you to be single!"

Hearing Song Yuxi's words, Liu Yun'er didn't know how to answer for a while, would she really stay single?

At this moment,

A smiling face came to mind.

Lin Fan: (‵▽′)ψ hello?

No, no, no!

That's impossible!

How could you look at him unless you were blind?

"Forget it... I'll always be single. Liu Yun'er said.

"That's not going to work!"

"I have to accompany you!" Song Yuxi said firmly: "Now it's okay... Don't give up. ”

“...”

"I think..."Liu Yun'er pursed her lips and hesitated, "Let's talk about it." ”

Song Yuxi noticed a hint of something strange from Liu Yun'er's dodging eyes and vague words, wouldn't it? Isn't this girl going to be in love?

"Yun'er?"

"Are you... Got a boyfriend?" asked Song Yuxi.

"No!" Liu Yun'er shook her head.

"Didn't you?"

"But your performance... It seems to have fallen. Song Yuxi said seriously: "Don't be deceived... Now this society is more complicated, people's hearts are more sinister, and they seem to look very gentle, but they are actually a bastard. ”

The corners of Liu Yun'er's eyebrows turned up slightly, that scum Lin is not bad at this point, he looks like a bastard, but in fact he is a bastard.

Belch?

Why do you think of the scum forest again?

"I'm not going to be in love!"

"Not before, not now, and not in the future!" Liu Yun'er said categorically.

......