I Don’t Want to Win Lying Down

,

Of course Xu Mang knew what these people were doing, he just wanted to see the strength of these people, let alone...it's really not that good, it was filled with a row of calculations , but ended up empty.

It seems... can't count.

you do not understand...

This is a question of relativistic cosmology. Tong Min said with a smile, Did you sprinkle a handful of cumin for me?

Absolutely!

The soul of barbecue lies in cumin and iced fat boy's happy water. Xu Mang said with a smile: wait a moment... help you get a few bottles of fat boy's happy water. By the way, do the two ladies need sugar happy water? Sugar-free happy water?

...

...

This guy... has a good sense of humor and is very attractive to women.

zero COLA!

I also want!

The two returnee girls smiled at Xu Mang and said.

but...

This aroused Yang Xiaoman's vigilance, I am sitting beside my old lady, this big idiot is courting others, what do you mean?

Ahem!

It's so hot... My mouth is a little thirsty. Yang Xiaoman coughed lightly, and said to Xu Mang intentionally or unintentionally, I want to drink Coke Zero... I don't know if anyone is willing to get it for me.

Xu Mang walked up to Xiaoman, glanced at Yang Xiaoman who had a look of anticipation, and said angrily, The cold box is placed next to you, and you don't even want to take it even if you bend over. You Tell me about yourself... lazy or not?

Yang Xiaoman: @#￥%...!

I...

whoops

Mad!

However, Xu Mang's mouth was unforgiving, but his body was very honest.

Among the many cold drinks, I picked a bottle of Coke that was not too cold, handed it to Yang Xiaoman's hand, and said seriously: Drink less cold ones, and you will become sick later, and the pain won't kill you when the time comes.

Yang Xiaoman was angry and warm, she rolled her eyes viciously, and then opened the bottle cap with a happy face, not to mention...the temperature is just right, this is the temperature of love.

I'm coming!

Iced Coke is here! Xu Mang ran to the four foreign students with a smile, and began to distribute things seriously.

Thanks!

Thank you so much.

...

The four of them thanked each other, especially those two girls, who had a good impression of Xu Mang. Sometimes feelings...maybe, just like Xu Mang and Yang Xiaoman, because of the gravy in the buns, the two of them left We are together, and we have to hug each other to sleep every night.

Although Xu Mang was wearing a hat and a pair of polarized glasses at this time, he could vaguely feel handsome from the outline.

well?

What's your name...? Liu Yan asked.

I?

You can call me Xiao Xu. Xu Mang said with a smile: Can you let me see your calculation process? I like the universe very much... I am an astronomy enthusiast, so I chose physics. Department, majoring in theoretical physics.

???

???

???

Can't see it!

This guy is actually engaged in physics, or in theoretical physics!

etc,

Isn't this just right?

Xiao Xu?

Unexpectedly, you still study theoretical physics, so you should understand the theory of relativity? Tong Min asked.

Okay.

Let me take a look first? Xu Mang was really curious about the content of their calculations. If these four people's calculations fail, they will not be able to solve the problem of oxygen fugacity in exoplanets. The problem of oxygen fugacity in exoplanets requires a lot of comparisons. Calculated, the intensity is high.

Give!

That Liu Yan generously handed over all the manuscripts to Xu Mang, but Lu Bo was a little dissatisfied with this. For such an important thing, he gave it as he said. No matter what, it was all his own knowledge. It's too childish.

But it was too late for him to refuse, Xu Mang was reading their calculations.

at first,

They thought it was just a calculation problem, but it turned out that there was not only a problem with the calculation, but also a problem with the whole direction of thinking. Take the functional relationship between the ability, momentum and time of the expanding universe that they needed to solve, they used the wrong formula!

Xu Mang returned the manuscript to them in disappointment, and said calmly, You... used the wrong formula.

This problem needs to use the Robertson-Walker metric to describe space-time. Xu Mang said helplessly: Get the non-zero components from the formula, then use the geodesic equation to calculate, and finally get the thinking momentum and basic momentum, including energy.

words fall,

The few people present were surprised and looked at Xu Mang in disbelief.

you...

You figured it out so quickly? Tong Min asked in horror, Just... just glanced at our calculation process?

yes!

Actually, this question is quite simple. Xu Mang said with a smile: After all, I am studying theoretical physics. Relativity and quantum mechanics are my majors. It is not difficult to get the result.

Give!

Xu Mang handed over the manuscript to the girl Liu Yan.

wrong!

This is not the case!

This theory of relativity is actually different from relativistic cosmology. If this guy is purely engaged in theoretical physics, it is impossible for him to come into contact with such profound issues, including the Robertson-Walker metric. How does he know this?

Looking at Xu Mang's leaving back, the two international students of astrophysics looked confused, and they felt that they had seen a monster.

he...

It's different!

It's not like an ordinary college student. Liu Yan said seriously: To analyze the cause of the problem in such a short period of time is definitely not something that ordinary students can do. Have you ever seen such a person?

Tong Min and Lu Bo shook their heads.

never mind...

Maybe it's luck. Tong Min smiled wryly: Then... the second question the professor set for us, assume that the early universe was composed of non-interacting particles and gases with zero mass, which are only affected by gravity. ..”

at this time,

Xu Mang walked to Xiaoman's side with a disappointed expression on his face, and sat on the chair silently without saying a word.

well?

What's the matter? Yang Xiaoman asked with concern: I was still in high spirits, why suddenly...been wilting?

well...

I originally wanted these four people to help me solve the problem of oxygen fugacity outside the system, but these people's abilities are not good enough. Xu Mang said helplessly: The computing ability is urgent, and there are also problems with professional ability, of course. ..limited to those two boys.

Those two girls don't count? Yang Xiaoman rolled her eyes and said hastily, I want to eat corn... put a little hoisin sauce on it.

oh...

Xu Mang obediently ran to the barbecue stove and grilled corn for Her Lady Queen.

at this time,

The four of them are solving the temperature dependence time of heat balance in the hypothetical universe, and the professors of Tong Min and Lu Bo need to let the two of them calculate the dependence.

Confused...

Completely confused!

Fortunately, the four people successfully calculated that the photon gas is in a state of thermal equilibrium at time t, then according to Planck’s black body radiation theory, the photons with a frequency between v and v+dv in the volume V(t) number.

but...

Because the frequency will move, the volume will expand, and how to calculate this process is basically difficult for the four people present.

It's over...

This has completely entered the stage of confusion. Tong Min said helplessly: I found that this professor is deliberately messing with us... This question is too sharp.

I think so...

This calculation is quite a lot. To be honest... I am a graduate student in the Department of Mathematics, but... I can't calculate it. Liu Yan smiled wryly: Oh... I mean, do you two usually offend you? Professor, probably embarrassing you?

Don't talk nonsense!

We are usually very honest. I think...that bastard professor deliberately played tricks. I said...why did we call the two of us to the office alone at that time? That's the reason! Tong Min said angrily: This is deliberately preventing us from graduating!

impossible?

He...has no grievances with you, why don't you two graduate? Zhao Pengpeng asked.

At this time,

Lu Bo, who has been silent all this time, said: Because... this professor discriminates against Chinese people.

words fall,

The two girls stopped talking. There is a lot of discrimination in the United States, especially in the field of higher education. Many professors in prestigious schools discriminate against Chinese students and Asian students. Many, many schools would rather admit whites and blacks than Asians, especially It is from China.

Therefore, Huaguo students who want to be admitted to the famous Ivy League schools basically have to far surpass everyone in terms of grades.

But that's it,

And often do not invite professors to see.

well...

Actually, I really regret going abroad to study. Liu Yan said helplessly: I knew... I stayed in China, but unfortunately my parents didn't agree and they must let me go abroad. I also wonder... Going abroad is so important ?

I remember...Professor Xu has never studied abroad, and he has become a top scientist in the world, although... Liu Yan showed a helpless and funny expression when she thought of her professor being stomped by Xu Mang. : Although they are notorious, they are indeed powerful!

Xu Mang,

Professor Xu,

It is true that the reputation in American academic circles is not very good, and it is said that they specifically entrap Europeans and Americans, but they have this strength.

well?

Either... ask Xiao Xu for help? Tong Min said, Maybe Xiao Xu has this ability?

...

...

...

don't even say,

This is indeed a chance!

Although I don't know how that guy solved the first problem, his strength doesn't need to be explained.

I'll go find him!

Liu Yan has a good impression of Xu Mang, mainly because he is more careful and gentle with people, and the most important thing is... he is very handsome, similar to Taibai Mao, an author who writes about the Internet, and he is a good-looking handsome guy!

words fall,

Liu Yan got up in a hurry, and ran to Xu Mang's side under Yang Xiaoman's gaze.

hello?

Handsome...are you free? Liu Yan asked.

What's the matter? Xu Mang was roasting corn, and asked with a confused face, Is there anything I can do to find a handsome guy?

Well...

Can you help us solve a few problems? Liu Yan said with a smile, It's those about relativistic cosmology.

oh...

Wait until I finish roasting these corns. Xu Mang's thoughts are all on the corn right now, just now...he vaguely sensed a trace of murderous intent, glanced at Xiaoman secretly, and found that her face was full of jealousy two words.

moment,

Xu Mang handed the corn coated with seafood sauce to Xiaoman's hand, then leaned close to her face and kissed her, and said softly, I'll help some young people answer their questions.

Um!

Go and come back quickly. Yang Xiaoman said shyly.

but,

On the other side, Liu Yan and Zhao Pengpeng are very sad, it's a pity that the famous grass has an owner.

Come on!

Let me see if there is a problem. Xu Mang came to the four of them with a smile and asked curiously, What's the problem?

Give!

Liu Yan handed the tablet to Xu Mang.

moment,

After getting the manuscript, Xu Mang took a closer look and gradually knit his brows together.

...

...

...

Seeing Xu Mang's expression, Tong Min and Lu Bo couldn't help becoming nervous. This guy is his last hope... Don't say no!

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