I really don't want to lie down and win

During this period, he searched the Internet about the time limit of journals, only to find that the review of Nature journals is very slow. According to online sand sculpture netizens, it will not be published within two months.

Physics high school stage completed

suddenly,

The system popped up a prompt, telling Xu Mang that his physics had officially entered the university era.

"Xu Mang!" The professor coughed lightly, and shouted to the trembling Xu Mang lying on the table, "Please answer what is the cosmological constant."

"what?"

......

Chapter 253 The scene is a bit out of control (1/3)

cosmological constant,

A very magical existence.

If it were Xu Mang a minute ago, when faced with this question, he would have silently raised his hands to show that he had surrendered. However, just a minute later, he had evolved from a mortal to a god of learning, and he understood it in an instant. The thing about the cosmological constant.

at this time,

The other students sympathized with Xu Mang's experience, and they didn't mean to laugh at it. After all, a terminally ill person was humiliated by physics at the last moment of his life. It's so fucking tragic...

A male student sitting near Xu Mang cautiously said to Xu Mang, "Xu Mang...the cosmological constant is a kind of cosmic field strength, a term proportional to the metric tensor."

However...

The voice was so low that Xu Mang didn't hear it.

"professor!"

"Are you asking me to talk about the cosmological constant?" Xu Mang stood up and said with a serious face, "If you insist on asking me to talk about the cosmological constant, I'm afraid it will delay your class time and the time for students to acquire and enjoy knowledge. hapiness."

"???"

"???"

"???"

What the hell!

Is this the release of self before dying?

The thirty or so students in the theoretical physics class present looked at Xu Mang in horror. Could it be that this is the flashback?

The professor is also a tough-tempered person. He has long had a big opinion on Xu Mang lying on the table all day long. It's not because he dislikes Xu Mang's hard-to-learn, but he has a positive attitude towards Xu Mang's IQ. Nor will there be so many achievements other than physics.

What the professor was worried about was that Xu Mang's acting like a salty fish all day long would affect the surrounding students. The most important thing in learning is an atmosphere, and a role model is needed.

It is clear,

Now this atmosphere is destroyed, and the role models are gradually distorted.

"can!"

"The next time is for you to talk about the cosmological constant." The professor nodded.

"Then I..."

"Can I stand in your position?" Xu Mang said with a smile on his face, "I'm sorry, Professor, I'm used to it...I usually teach advanced mathematics for students majoring in optics."

After Xu Mang's reminder, many people realized that he was actually a lecturer too!

Nima,

It was also reported together in September. Others are graduate students with dual departments and have become a lecturer in advanced mathematics, while I am sitting in the classroom and listening to the professor's lecture.

They are all human, why is there such a big difference?

after that,

Xu Mang stood in front of the podium, and a strange yet familiar feeling came back.

"System... I want all the contents of the cosmological constant!"

Recognized by the system, the exchange value of the entire content of the cosmological constant: 1500 physical skills

I rely on!

Is it that expensive?

However, the arrow had to be fired on the string.

Xu Mang could only pay [-] skill points reluctantly.

By the way,

Memory mode is on.

After all, it took so many skill points to explain a cosmological constant, why should we remember this knowledge?

"Cough cough!"

"If you want to know what the cosmological constant is, then I have to start with Einstein's general theory of relativity." Afterwards, Xu Mang wrote down a field equation on the blackboard, then turned around and said to the students, "You should know this What, yes...these are Einstein's field equations, which describe gravity as the curvature of space."

The concept of space curvature,

All the students present understood that this concept has been verified in the macroscopic universe. Of course, this does not mean abandoning the law of gravity, and the curvature of space is just a fine-tuning of Galileo and Newton's theories.

"This is energy, and this is the shape of space-time." Xu Mang said, "This is an equation based on the static universe, used to calculate the universe."

"but..."

"This equation calculates a dynamic universe." Xu Mang paused for a moment, "I don't need an explanation for the dynamic universe, does it?"

The students present shook their heads one after another, expressing that they don't want to talk nonsense!

"Oh..."

"At that time, Einstein believed that the universe was static, and the universe should remain static." Xu Mang wrote down another field equation, but this time it included a term, the Λguv universe term.

By the way,

Under this universe item, two wavy lines are drawn.

"This is when Einstein raised his hand and suddenly added something, which is the cosmological constant Λguv." Xu Mang paused for a moment, and said silently, "It is an unknown cosmic energy he imagined."