I Don’t Want to Win Lying Down

The conditions are very adequate.

In the basic national policy of observing and producing relativistic mesons, the trajectory of mesons in the magnetic field is a curve of a certain value, and the trajectory after passing through the medium to lose energy is 0.34T, and the velocity of the slowed particle beam is measured by the time-of-flight general instrument It is 1.8X10^8m/s.

The requirement is to calculate the rest mass and the kinetic energy before and after deceleration, and be accurate to two digits.

Most people would be stunned when they saw this kind of topic, but Xu Mang was full of enthusiasm for it. After all, he was a professor of theoretical physics, and his major was relativity and quantum mechanics. Almost no one knew these things better than him.

ten minutes,

This is Xu Mang's conservative estimate. After all, his racing calculation ability has degraded so much. Give him a reasonable concept of time to avoid embarrassment.

However... the situation was far from as difficult as Xu Mang imagined.

It only took 80 seconds to solve the calculation from the parameter calculation of the slowed particle to the trajectory momentum of the particle in the magnetic field, and finally obtained the kinetic energy E1 and E2 of the slowed particle.

call...

Xu Mang let out a long breath, glanced at the terrified expressions of everyone present, and smiled calmly, I'm sorry...it's mainly because it's too simple...I accidentally finished it ahead of time.

at this time,

Everyone was silent, looking at Xu Mang like a monster. They really couldn't imagine how this was done. He didn't look very smart either.

How is it? Xu Mang looked at the bridesmaid, and asked with a smile, Hurry up and check the answers.

I...

This... The bridesmaid was still speechless. Hearing Xu Mang calling out to her, she hurried to the side, took out her mobile phone and proofread it carefully. After she finished proofreading the answer, she was even more surprised.

right?

No way?

This is a question given by Xiaoling's colleague. It is a standard relativity problem. He threatened that he would not be able to solve it for two hours. As a result... it turned out that he solved the problem in less than two minutes, and the answer was still exactly the same.

he...

Who is he?

Why did Cao Yang invite such a monster to be his best man?

hehe...

Oh? Xu Mang asked with a smile, What major did you graduate from?

I...

I'm a master's degree in physics,

in the optical direction. ’ said the bridesmaid.

Xu Mang froze for a moment, nodded thoughtfully and said, Oh...major in optics, so what... You should find an expert in relativity to write this topic, right? Can you help me introduce it to him? question?

Tell him...if a slowed particle has half the chance of decaying after traveling four meters, ask him to calculate the intrinsic half-life of the particle in its rest frame, and the percent decay of the particle before slowing down Fifty o'clock, the flying distance in the laboratory. Xu Mang said seriously.

this...

This guy is definitely not an ordinary person!

absolute!

It's not just the bridesmaids who have this idea, the groom and the groomsmen also have this idea. Although they don't know what Xu Mang is talking about, they sound tall and profound, and they can provide questions to experts and scholars. This ability ...not like something a college student should have.

Yes... sorry, I didn't understand your question, can you write it for me? said the bridesmaid.

Oh well!

moment,

Xu Mang handed over a blank paper, on which he wrote about the question he asked, about the half-life of the particle.

Open Sesame!

Xu Mang shouted across the door with a smile.

The bridesmaid outside the door communicated with the inside, and then the door was opened. Xu Mang and the others were safe and sound, and walked in without any obstacles, but... the groom was a little confused at this time Circle, he was still remembering what happened just now.

In less than half an hour, I came to the bride's bedroom, my God... Could it be a dream?

Thank you Sesame!

Xu Mang thanked the bridesmaid next to him who opened the door, and said to the bride with a smile, Cousin...here we are! I'm your brother-in-law...Although I've become a traitor this time, don't worry, Cousin Brother-in-law dares to bully you in the future, I will be the first to stand up!

Xiao Ling: (*￣︿￣)

This is the guy!

There is such a traitor in her family!

So angry!

But thinking about it from another angle, there is such a top genius in my natal family. I really didn't expect that it only took half an hour, and the difficulty of the third question was raised... Really a genius!

Although she was a little proud in her heart, she should be angry or angry, Xiaoling scolded Xu Mang with a dark face, I said you little bastard, which cousin of mine are you dating?

ah?

Yang Xiaoman! Xu Mang asked with a smile, Cousin, have you ever heard of it?

Yang Xiaoman...

Xiaoman? !

After Xu Mang's reminder, Xiaoling remembered who it was, and memories about Xiaoman flooded in like a flood.

Little Man!

I gave her extra lessons when she was a child, but unexpectedly... she has already made a boyfriend. Xiaoling sighed, her expression gradually became melancholy, but soon she returned to reality, and now is not the time to recognize her relatives.

Ahem!

Your name...

Cousin, please call me Xiao Xu.

Oh... Xiaoling nodded, and said with a serious face: Xiao Xu...Although you helped your cousin pass three tests, your cousin's test is very difficult. We agreed in advance...Cousin This level is more difficult, you need to solve two problems.

At this time,

Cui Caoyang was unhappy, and said to his unmarried wife: Xiaoling... Xiao Xu is a guest, how can you bully him like this?

Cousin-in-law!

Don't be so flustered... What's yours is yours anyway. Xu Mang said with a smile, Don't worry... I'm basically invincible in China, and I have a relatively large influence in the world, isn't it? Two difficult problems... ten difficult problems can also be won!

Xiaoling glanced at Xu Mang, and said angrily, Don't brag, your cousin is very stubborn, she might really give you ten questions.

hehe...

I was just kidding around. Xu Mang said awkwardly but still politely: Everyone in your family is like this...Xiaoman is also like this.

Xiaoling glanced at Xu Mang sullenly. This guy seemed to be addicted to being a traitor. When he had a chance to talk to Xiaoman, he didn't take his cousin seriously at all.

Stop joking!

Cousin... Please come up with a question, my cousin-in-law and I are in a hurry. Xu Mang said seriously, I will try my best to end all this within ten minutes.

Xiaoling:? ? ?

you...

Cousin doesn't want to lose face?

In less than half an hour, he entered the bride's bedroom. Fortunately, all of them were from his own family. If her family knew about it, she would laugh out loud.

Give!

See if you can solve it in ten minutes! Xiaoling said angrily.

got the topic,

Xu Mang glanced at it from the corner of his eye. The first topic was about quantum mechanics, about the selection rules of the atomic state that absorbs or emits a photon under electric dipole interaction. According to the Bohr model and the corresponding formula, the The 2P state lifetime of the hydrogen atom is used to estimate the radius, and then the electron volts of the 2P state are calculated based on this value.

Problem in the problem!

The thief is so insidious and cunning!

If the first question is wrong, it is absolutely impossible to get the second question right, but the first question is extremely difficult!

Xu Mang glanced at his cousin and the bridesmaids present, and couldn't help but sigh with the secret joy on their faces, alas...Young man!

The transition rules of the Bohr model!

It seems that the person who wrote the question...is a professor of quantum mechanics, and most people can't give such a question type. Xu Mang said with a smile: Actually, you only need to calculate the energy level difference between the radiation work and the transition to the base. , this problem is basically solved.”

???

???

???

really?

Is this guy still human?

Even this?

Just when everyone was confused, Xu Mang had already started to write, almost the same as before, maintaining the highest hand speed.

After seeing Xu Mang's answering speed, her cousin Xiaoling collapsed on the spot. She couldn't imagine how it was done, how could it be so fast?

Graffiti?

Performance Art?

Still doing a funny show?

five minutes,

In just five minutes, Xu Mang finished this question under the terrified eyes of everyone, and then he looked at the last problem. As long as this is completed, today's work will be over.

After briefly reading the title, the originally calm expression suddenly became a little frightened.

Xu Mang: Σ(°△°|||)︴

this...

This is definitely not as simple as a physics problem!

From this question, Xu Mang read another layer of meaning. Although the author of the question has carefully revised it, he can still understand some off-topic sounds from a few words. This is an experimental process. In this magnetic field, any Each of the mysterious particles produces a small electric field.

In turn, this drives oscillations in the plasma, which can then be detected as evidence for the mysterious particle itself.

What Xu Mang needed to solve was to calculate the frequency of this mysterious particle.

Mysterious particle...

hehe!

Xu Mang probably knew what the mysterious particle was, and the whole experiment process was almost understood, but Xu Mang had to admire the person who thought up this experiment. He let the plasma play a dual role, creating a space that allowed for efficient transformation. environment, which in turn provides a resonant plasmon to harvest the converted energy.

Absolutely!

Don't know...whether his experiment was successful or not.

Thinking of this,

Xu Mang showed a slight smile. This time, the best man was not in vain, and he actually obtained such important information. This brand new experimental method can be applied to the search for dark matter. The tunable plasma...has played a big role here !

Xu Mang carried out the calculation of the particle frequency with excitement, and found many problems. This experimental plan seems to have a lot of flaws. Based on the known conditions, no suitable solution can be found. .

here,

The experiment was almost certainly wrong.

But maybe his own ability was not enough to solve the frequency problem of this mysterious particle, but Xu Mang quickly dismissed this idea. After all, physics has reached the level of proficiency. Unless it exceeds the existing theoretical framework, it cannot be the cause of him.

At this time,

Xu Mang silently put down the black pen in his hand, raised his head and said to his cousin Xiaoling: Cousin... There is a huge mistake in this question, I need to talk to the person who wrote the question, he seems to have come to a misunderstanding, if you don't change it in time, I'm afraid I'm going to sink deeper and deeper!

At the same time... I want to cooperate with him. His experimental method is very interesting. If a complete system can be established, it will greatly improve the two fields of astrophysics and high-energy particles! Xu Mang said seriously said.

???

???

???

whoops

This pretending is...fresh and refined!

He actually questioned the dean of the Department of Physics at Soochow University!

Still need to cooperate!

Are you crazy?

Ahem!

Xiao Xu...don't make trouble! Cousin Xiao Ling said awkwardly: To tell you the truth, this is a topic given by the dean of the Department of Physics at Soochow University, and your cousin and I... are lecturers in the Department of Physics. The head of the department is usually very busy...and...what capacity do you use to talk to him about issues and cooperation?

Xu Mang took off his glasses silently, and said with a smile on his face, As the deputy director of Fuda's Department of Physics, a professor of theoretical physics, and an authoritative expert in the fields of astrophysics, superconductivity, quantum mechanics, optics, and materials.

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