There was a sigh in the classroom.

"What's the matter, does anyone have an opinion on my statement, if you have an opinion, you can stand up and tell me, and I will definitely give you a satisfactory answer!"

Elena's tone was not good, how much gunpowder it contained needed to be tasted slowly, but who would take the risk of not being able to lose the body.

The noisy classroom fell silent again. The confused eyes of the students looked at the beautiful teacher who looked like a fan on the podium.

Female doctor of physics, is it very strange that the female character of science is very strange?

"Knock knock!"

Very rhythmic, polite three knocks on the door.

Wow -

All the students focused their eyes on the doorway.

This unlucky student was actually late for the first day of school, and it didn't matter if he was late, but he was still planted in the hands of this terrible teacher.

Expect...... What exactly happens next? Was it Elena who criticized the student severely, or gave a show of killing chickens to monkeys?

"Please come in!" Elena said in a bland tone.

"Teacher, I'm a student of the new report, I'm sorry for the delay on the way, can I come in now?"

The sound is so soft, like the soft rain silk of spring sliding on the skin, which makes people extremely comfortable and nostalgic.

The girl has a pair of bright eyes, clear and clear, bright like stars, I don't know what she thought, suddenly excited shallow smile, eyes bent like a crescent moon, as if the spirit also overflowed. Between a smile and a smile, the noble look is naturally revealed, and people have to marvel at her elegant and delicate light.

Quiet, quiet classrooms, it seems that even the air has stopped flowing.

The male compatriots stared at the beautiful woman intently, and it seemed that it was a waste of time to blink their eyes.

Kristen grunted and swallowed, "This...... This is so earth-shattering, I didn't expect there to be such a face in the world, I am really fortunate to see it today, it is really a great harvest of my life. It would be nice if it were my girlfriend, what country, what fame and fortune, to hell with it, as long as I have her by my side, I will be satisfied, completely satisfied, nothing else! ”

"You kid dare to rob me, this is Earth, this is our territory, go back to your Mars. It stands to reason that our earth should come first, where is your turn! ”

Chen Meng whispered very unpleasantly.

"Nima! Don't you already have Zhiqing, why are you still robbing me of it! ”

"Do you care?"

Seeing that the two are about to go to war again. Elena's sharp eyes on the podium glared, and everything was quiet, and everything was a little calmer.

And Wang Lei was completely dumbfounded, how could it be her, how did she come to school, this doesn't seem to be the place she should be.

Elena smiled sincerely, "Where, you're not late, come in and see where there's a seat and sit down!" ”

At this time, the male students who had vacant seats around them secretly sent autumn waves to the girls.

The girl walked up to a male student next to Wang Lei, "Hello classmate, can you sit here?" I want to sit here, thank you. ”

The male classmate was stunned for a while, then quickly sobered up, "Okay...... Good...... That's fine, of course. ”

The girl is none other than Alice, the princess of the Southern Empire.

"Brother Wang Lei, I'm surprised that I'm here, hehe." Alice blinked at Wang Lei with a pair of big eyes.

I only saw her on a video call last time, and now it's even more interesting to see her in person. Now she is more beautiful than she is on the video.

"It's very unexpected, hehe, why did you come here, aren't you a private visit to Weifu?"

Wang Lei felt that her heart was about to jump out, when would he be so nervous.

Elena on the podium suddenly looked at Wang Lei and Alice with wide eyes, but quickly withdrew her gaze, she didn't want to be found by the princess and be dissatisfied, the consequences can be imagined.

Before Princess Alice arrived, Elena received a notice from the headmaster, Alessandra, that the princess of the Southern Empire was coming to inspect the school, and it was the physics department.

Oh, my God! Isn't it a bit ...... for such a noble person to come to Langyue Military University The shock in Elena's heart, the princess of the Southern Empire, how noble her identity is, almost the visit of the Secretary General of the Galactic Federation, this is a god-like figure, it seems to be more powerful than the gods.

Alice smiled, "Brother Wang Lei, this is my last stop, I will stay here for ten days, I just came to see you, I don't want to stay...... Regretful! ”

Alice blushed.

The surrounding male classmates all looked at Wang Lei, and Alice looked at her and said, "Brother Wang Lei, let's find a clean place after class, there are many people here, and it's a class." ”

"Well, okay, hehe."

I have never felt like I've ever felt it, and a warm feeling came to my heart, is it family affection? How much he longs for family affection.

Brother, what a proud sister. She is the brightest of all the stars in his heart, and it is worth cherishing for him all his life.

"Students, I am currently short of an assistant, who of you wants to be my assistant?"

The so-called assistant is the representative of the physics class, which is also what every first-year student is used to.

"I ...... I...... I ......"

A pair of hands raised high, eager to insert the earth.

Elena smiled, "There is no such thing as pie in the sky, and if you want to be my assistant, you must have certain qualifications, and it is not something that anyone who wants to do can do it." You are students of the military academy, you must understand that everything depends on ability, and in the current era, everything depends on ability to speak! ”

"Now who's going to tell me about black holes, tell me how much you know about black holes?"

Twilight Yuze stood up first, "Teacher, I know that black holes are created by the gravitational collapse of stars that are massive enough to die after they run out of fuel for the nuclear fusion reaction. The mass of a black hole is so great and its size is so small that the gravitational field it produces is so strong that any matter or radiation that enters an event horizon of a black hole cannot escape, not even the fastest light known to travel at all. ”

Elena nodded in satisfaction, "And then, keep talking!" ”

Yu Ze scratched his head and grinned, "Teacher, I know this too, there are very few extracurricular books to read." ”

"Then you sit, who else has to answer?"

Christine from the dormitory stood up, "Twilight Yuze is right, but I want to add two more words. A black hole is a kind of celestial body with infinite density and infinitely small volume in the universe in the modern general theory of relativity, and all physical theorems will fail when encountering a black hole. Karl Schwarzschild calculated a vacuum solution to Einstein's gravitational field equation, which showed that if a large amount of matter is concentrated in a point in space, a strange phenomenon will occur around it, that is, there is an interface around the particle - once the "event horizon" enters this interface, even light cannot escape. This "incredible celestial body" was named a "black hole" by physicist John Archibald Wheeler, and this is how black holes were born. A black hole is a celestial object with such a curvature of space-time that no light can escape from its event horizon. ”

"Well, that's a very good answer, who else would like to add?" Elena looked at Christine very appreciatively, this Martian is smart, and he talks about it in a set.

Princess Alice poked Wang Lei's arm, "Brother Wang Lei, don't you want to say a few more words?" Is everyone competing? ”

Now there are no more people who raise their hands, and the estimates that can and cannot be said have been said, and there is nothing more to say.

Elena glanced at Wang Lei's side, "Wang Lei, what do you think you are about to move, and you want to say a few words?" ”

The classmates around are happy.,This theoretical thing is almost the same.,If you can't answer it, how embarrassing it is in front of the goddess.。

Most people are looking at Wang Lei's next mess with a lively mentality.

Wang Lei smiled and said, "The two classmates in front of me are quite right! ”

"Whew! Gone? Elena was surprised.

There was laughter at the bottom, isn't this nonsense, anyone would say two words in this way.

"Once a person enters the turbulence of time and space, the physical body is extinguished, and only the brain remains, and this consciousness is another space. Anything that happens in this space is the so-called "history" set up by what the brain once existed, that is, what was known! ”

The classroom suddenly fell silent, and Elena also looked at Wang Lei with interest and said, "Go on!" "She likes Wang Lei very much, and she identified Wang Lei when she was recruited that day.

Professor Snefack, a physicist, believes that there are many "space-time tunnels" in space that are invisible to ordinary people's eyes, but objectively exist, and that people, ships, and airplanes that have mysteriously disappeared in history have actually entered this mysterious "space-time tunnel". Some scholars believe that the "space-time tunnel" may be related to the "black hole" in the universe. ”

Wang Lei walked to the huge electronic screen and drew a diagram of the black hole, and a large number of physical and mathematical formulas were written on the electronic whiteboard, proving them as she spoke.

The students at the bottom are now completely listening to the heavens. And Alice looked at Wang Lei with big eyes, this Brother Wang Lei is really powerful, it's really not simple, how good it would be if he was hired by the Galactic Alliance, and the realm reached by the senior physicists of the galaxy is at most like this.

Wang Lei continued to gush, "A black hole is an attractive world that cannot be seen by the human eye, but it is a kind of "space-time tunnel" that objectively exists. Once a person is sucked into a "black hole", he has no sense at all. When he returned to the Light World, he could only remember what had happened before he had been sucked in, and he had no idea how long he had been in the Dark. ”

"Thank you, I'll stop here today, if you are interested in the formulas on the electronic board, you can take a look, these can also be found in the school library."

Applause, cheers, endless.

The facts are already predestined, there is nothing to argue about. Theory plus formula, who else can shake it.

These formulas are familiar to Elena, she can understand them completely, but it is rare for a student to be able to reach such a state. Wang Lei is really not a simple person.

"Now I announce that Wang Lei will be my assistant in the future, are any of you still dissatisfied?"

There was silence below.

A crisp bell rang for the end of class, which also meant that Wang Lei's becoming Dr. Elena's assistant was a certainty, and it became a theorem forever.

Genius is born in this way!