A café in the capital,

Yang Xiaoman is sitting in a private room drinking coffee and chatting with several young and beautiful women, these people are her business partners, taking the opportunity to come to the capital to increase the emotion between each other.

"Xiao Man?"

"Tell us about your husband?" asked a young woman with a smile, "Seriously... Everyone in the circle knows that your husband's name is Xu Mang, and he is a big scientist... But there is so little news about your husband, and it's basically some reports that we can't understand. ”

"That's right!"

"Let's talk. Another woman laughed and said, "Gossip gossip." ”

Facing a few curious people, Yang Xiaoman thought for a while, in fact, there was nothing to talk about the big pig's trotters, and then said: "Yes... To put it bluntly, my husband is actually just an ordinary person, because he is too magical in the field of scientific research, and then blows him into the sky. ”

"But..."

"He has the capital to blow to the sky. Xiao Man said seriously.

“...”

“...”

however

Xiao Man said these things, a few people don't want to listen to it, they are mainly curious about some unknown things about Xu Mang, they don't care about scientific research at all, they love it.

"Xiao Man!"

"Let's talk about some gossip!" said the young woman hurriedly, "What you said... We are not interested at all. ”

Gossip...

Not to mention... He's got all the grooves on him.

"Uh..."

"He's a man... Speaking of which, there are a lot of slots. Yang Xiaoman tilted his head and said seriously: "We all want to watch TV series, but my husband is different, he likes to watch an American drama the most, it ended two years ago, but the last episode of the last season has never been watched." ”

"I asked him why, and it turned out that... As long as he doesn't see the final ending, the American drama in his mind will not end. Yang Xiaoman sighed and said helplessly: "A very stupid and cute big boy." ”

"That's right!"

"Do you know that he has a collecting habit?" Yang Xiaoman smiled mysteriously: "I like to collect expensive sports cars, he is a big pig's trotter... There are a lot of cars, all of them are tens of millions of cars, and there are even a few cars that have broken 100 million. ”

A few people listened to it with relish, and these things were indeed quite new to them... Under the glamorous appearance, there are these unknown things, in fact, putting aside this veil of mystery, Xu Mang is just an ordinary married man.

meanwhile

Xu Mang is playing a game in an Internet café, his phone is in airplane mode, there is no way... Accidentally, the whole country caused a sensation, a boring math problem, so that all the mathematics students and professors participated in it, but they all seemed to be crazy, okay... Anyway, the summer vacation was canceled, and it was exciting to give a question.

Is it difficult?

Actually, it's not difficult at all, these people confuse physics and mathematics, indeed... This is a mathematical expression of four-dimensional space-time, but it is a little more advanced, these people have not figured it out, in fact, the meaning of the topic is not directly related to physics, and they have completely translated it.

But think about it...

Just let some people know that in fact, Huaguo is not bad...

"it!"

"What the hell... Don't even give me a little soldier?" Xu Mang is playing Dota 2, and if you change another game, you should change your mood, but Xu Mang is autistic... At the risk of being banned, I directly Alt+F4 and said goodbye to a bad mood.

Looking at the screen full of games, Xu Mang didn't know what he should play for a while, and looked at the young people around him who were the same as himself, and it turned out that everyone was playing games, but... There was a man who seemed to be coding, and this young man looked quite handsome, tall and mighty, and white and clean.

I have to say,

This young man is quite thoughtful, working in an Internet café... Is it diligence, or diligence, or diligence? or... He's boring, isn't he?

"Big white cat?"

"Is his name Big White Cat?" Xu Mang muttered: "Diligent and ruthless coder..."

stimulated,

Xu Mang logged on to his mailbox, downloaded the previous file from it, and began his unfinished work, about the relativistic singular binary star system, what is known so far is that the stars in the relativistic singular binary system seem to exhibit many of the classical effects predicted by Einstein's theory.

Then it was found that the direction of the orbital plane gradually changed ... Why, Xu Mang doesn't know for the time being, and he wants to make a call to the Princeton Astrophysical Society, but the moment he turns on the phone, it is estimated that it will explode, right?

But...

In the limited information, Xu Mang found signs of Einstein-Leng Ze-Tyrling precession.

This is a gravitational magnetic reference frame drag effect, which is used to detect the predictions of general relativity, using the periodic light pulses of pulsars, which can see many gravitational effects, but also because the periodic light pulses change the orbital configuration.

That's it...

The question of the relativistic bizarre binary star system has been mined to the limit, and the rest needs other evidence, that is, it is omnipotent, but in the face of things without evidence, it can only make compromises.

Turn on your phone,

In an instant, I received hundreds of text messages, as well as countless caller assistant messages, which made Xu Mang quite helpless for a while, good guy... Is this going to heaven?

Then

The call came again,

glanced at the caller, this time it was his wife calling, and he could answer it.

"Hello?"

Xu Mang cautiously asked, "Wife?"

"Xu Mang!"

"The old lady is going to kill you!"

Through the mobile phone, Xu Mang could feel that incomparably powerful anger, although he didn't know what was happening, but the strong desire to survive was activating, making Xu Mang break away and let out some unspeakable words.

"Wife... You... Your angry voice is so beautiful!" Xu Mang said with a smile: "It's simply the most beautiful voice I've ever heard in my life!"

"Get out!"

"Do you know how many phone calls I received, old lady?" Yang Xiaoman scolded angrily: "Hundreds of calls... You big idiot, you... You caused such a big thing yourself, and you disappeared, and everyone came to me. ”

Xu Mang shrunk his neck: "Wife, you should be fine, right?"

"Something!"

"I'll solve that damn problem for my mother right away!" Yang Xiaoman roared: "The sooner the better!"

"Oh..."

Hang up the phone,

Xu Mang showed a wry smile, he never thought that he would drive his wife crazy by the way.

...

Department of Mathematics, Beijing University,

It has been around this question for a long, long time, but at present, Xu Mang's problem has not been solved, the time is almost up, and everyone's previous frustration has turned into expectation, expecting Xu Mang to give a completely different answer.

What exactly does this math problem look like?

Logically speaking, with a four-hour solution time, this answer is not too complicated, otherwise it violates the solution time paradox, but it is also perhaps... That's Academician Xu Mang's problem, the ghost knows how complicated the equation will be.

Then

Xu Mang had already gone to the training base and came to Associate Professor Sun's office, only to find that it was full of people, and these people were basically assistant coaches for the training of the national team.

"Academician Xu Mang!"

"You're finally here... I've been waiting for you for a long time!"

"Academician Xu Mang, how to solve that problem?"

Xu Mang: (°ー°〃)

No way!

No way?

"Ahem!"

"Be quiet, don't get so excited. Xu Mang coughed lightly and hurriedly said, "I know you want answers, but the time hasn't come yet, uh... There's still a quarter of an hour, and you've been staying up for more than three hours, so there's no problem with staying up another quarter of an hour, right?"

Problematic!

The problem is very big!

These last fifteen minutes were as torturous as fifteen years.

Wait, wait, wait,

Finally, when the four hours were about to end, a group of people surrounded Xu Mang and went to the laboratory.

When the five desperate contestants saw Xu Mang's arrival, they came back to life in an instant, and they wanted to know the answer to this question so much, not only them, but all the teachers and students of the mathematics department in the country wanted to know.

"Actually..."

"It's not a good question, it's too hard for you to think. Xu Mang shrugged his shoulders and said indifferently: "Next, it may subvert your three views, and I will use a completely mathematical thinking to explain the problem in front of me." ”

"Again..."

"It has nothing to do with physics at all, you can't have preconceived notions, because I'm in physics, so I think this is a theoretical physics calculation. Xu Mang said, "Okay... That's all for the explanation. ”

Words fall,

Xu Mang took out a marker pen and began to write down the answer to this question.

At this moment,

Everyone present, including Associate Professor Sun and the group of teaching assistants, held their breath... I was afraid that my abnormal noise would affect Xu Mang's thinking.

At first, everyone fantasized that the answer was a very high-end and difficult equation, and it turned out that... When Xu Mang wrote down a set of equations in just thirty seconds, their worldview collapsed.

Only...

Just three equations?

It's over?

Fortunately... In order to better understand the mystery, Xu Mang wrote the expansion of three equations, and this dense number and letter made everyone's scalp tingle... Sure enough, the difficulty is not ordinarily high!

But...

Unfortunately, this is indeed only in non-Euclidean geometry.

One minute and thirty seconds,

Xu Mang completed all the steps and gave a very complete expression, its very flawless mathematical model, and of course... This is just an expression of an equation, and if you dig deeper, it can be divided into integral, differential, and compound formulas.

But these contents... It's not something that the five national team players in the mathematics competition can solve, so Xu Mang only wrote here.

"Done!"

"It's time for me to go..."Xu Mang glanced at the stunned crowd, and then said to the five players: "If you study abroad in the future, remember to come back." ”

Xu Mang is gone,

It wasn't until his back disappeared from view that everyone reacted.

Oh, my God!

What have you just experienced?

......