He...

He wrote?

This news was like a bomb, which confused everyone present, it was eight textbooks, but Xu Mang said that these eight new textbooks were all written by him alone, which is a huge workload, and it will take at least several years to write.

"Professor Xu Mang?"

"You... Are you sure you wrote it yourself?" a professor asked curiously, "But that's not right, I've heard that this set of basic physics textbooks was only completed... It's quite short, how can you do it in a short period of time?"

"I don't know. ”

"I received a notice, and then I wrote it blindly, and I wrote it for a few days. Xu Mang tilted his head, recalled the past scene, and said indifferently: "Then suddenly one day the new textbook was compiled, probably like that... Actually, it's not a big deal. ”

“...”

“...”

“...”

Although it was said so lightly, many people present felt that Xu Mang's flat tone had a hint of pride, and this pride made many people quite suspicious, and I have to admit that Xu Mang has played a strong role in the field of scientific research, and has almost become the spokesperson of Huaguo's scientific research to the outside world, but his teaching ability... I really beg to differ.

On the way to the designated multimedia classroom, Hu Feng was questioned by the professors, and they asked whether the author of the textbook was Xu Mang, but there was no way... Now that Xu Mang has made it public, Hu Feng can only tell them everything.

"Yes!"

It only took a few days for Professor Xu to complete the entire textbook. Hu Feng said seriously: "Although I don't know why it's so fast, after being reviewed by the academicians of the Institute of Physics, it is unanimously considered to be perfect!"

In a flash

There was silence in the crowd, and many people could not accept the news.

Just a few days?

Perfect?

Why does it sound like listening to a book?

Many people secretly glanced at Xu Mang, and saw that his whole state was a little decadent, and his eyes were a little sloppy, and they couldn't imagine that such a person could complete a set of basic physics textbooks in just a few days, and... It has been well received by academicians of the Institute of Physics.

I have to say,

Xu Mang is simply synonymous with miracles.

soon

When we arrived at the classroom, a huge multimedia classroom, the students were freshmen from all over the world, and they were afraid to sit here and listen to the legendary Professor Xu Mang's lectures, with a hint of anticipation.

"it!"

"Professor Xu... It's really young!" A girl saw Xu Mang standing on the podium, and fell into a for a while, thinking about her own professors, and then looking at Professor Xu in front of her, why are other people's professors so handsome? Forget it, it's all tears.

“...”

"I've heard... Professor Xu Mang is only in his twenties, right?" The girl sitting next to her said curiously: "It's a pity... I heard that Professor Xu has a fiancée, and I really can't understand how such an excellent man can enter the grave of marriage so quickly. ”

"I wonder too!"

"You said that there are people in the world who can be worthy of Professor Xu, what is the origin of the other party?" The girl with glasses frowned, with a hint of discrimination against her on her face: "I think Professor Xu is threatened!"

At this point,

There are fifteen minutes left before class, and in this long fifteen minutes, many people have taken out their mobile phones and shot hard at Xu Manna, and there is even a live broadcast, in short, it is to record this magical encounter.

A photo,

Videos,

Suddenly it began to go viral on the Internet, and there was even news that Xu Mang was going to resign at Fuda and go to Qingda to take up a post, but this kind of news was soon clarified, and it was clarified by the official Weibo of the two schools, and there was no way... When it comes to Xu Mang, the speed of public relations is so fast.

However, as a young man, Xu Mang couldn't help but take out his mobile phone and take a selfie of himself, of course, in the background of this group of students.

Over time,

There are still a few minutes left before class,

At this point,

The students noticed that Xu Mang didn't seem to have any textbooks with him... Could it be that Professor Xu is all from memory?

Jingle bell~

The bell rings,

All the students present packed up their relaxed and playful emotions, and changed their serious and rigorous attitudes to deal with the next experience, perhaps it will be an unforgettable journey.

"Ahem!"

"It's class!"

"I'm going to take a random sample of quantum mechanics. Xu Mang opened a piece of software and clicked on it casually, but there was no way... The above requires random content to be taught on the spot, so as to test how well the students can receive it if the professor is not prepared.

"Uh..."

"Temporal approximation methods and transitions. ”

Xu Mang glanced at the topic he was drawing, got up and glanced at the projection content behind him, and said indifferently: "Please turn to page 221 of Basic Physics - Quantum Mechanics, and now the class will officially begin!"

“？？？”

“？？？”

“？？？”

Autumn bean sacks!

This...

This directly reports the number of pages?

Everyone in the multimedia classroom was stunned for a moment, including the professors sitting in the back row, and Hu Feng, the leader of the silent teaching materials group, were all taken aback by Xu Mang's memory, and they were sure that this was not the content of the acting that had been carried out on the premise.

"This..."

"Does he know the whole thing?" Hu Feng's eyes widened, he looked at Xu Mang in horror, and muttered, "Oh my God... Tens of millions of words, he knows all the contents?"

however

Xu Mang didn't give anyone time to continue thinking, and stood on the stage and said silently: "Let's talk about the first content first, about the selection rule of the atomic state that absorbs or emits a photon when it acts at the electric dipole. ”

"This involves three aspects, the first is the description of the atomic state that absorbs or emits a photon, the description of the electrical dipole transition selection rule, the interpretation of the orbital angular momentum, spin, helix and cosmology of the second photon, and the three-Bohr model. ”

"The first two are simple, according to the electric dipole transition selection rule, we can..."

Xu Mang stood in front of the blackboard, holding chalk, while telling the content, while analyzing the content, he didn't read a word of the textbook in the whole process, but it was completely consistent with the content.

"Attention!"

"When we calculate how many electron volts the width of the 2P state is, we must follow the uncertainty relation..."

Xu Mang, who was in front of the blackboard, spoke more and more fluently, and in a blink of an eye, he talked about the content of the fifth part, the problem of the energy and momentum distribution of particles in a one-dimensional infinite depth potential well when the wall was suddenly removed.

Regarding this content,

There is no corresponding explanation in the textbook, and Xu Mang just came up with a question.

"When the walls are suddenly separated and separated from each other at infinity, that is, the walls are completely dismantled in an instant, and the wave function of the particles has no time to react in this instant, so it will maintain its original form, but the Hamiltonian after the wall is dismantled is different from before the demolition. ”

"This original form of the wave function is not the eigenstate of the newly dismantled Hamiltonian, so... The initial condition for the action of the fundamental wave function is to solve the Schrödinger wave equation of the free particle. ”

meanwhile

The last rows of multimedia professors,

Quietly listening to the content of Xu Mang's class, watching him rely on his memory to explain the particle problem in the one-dimensional infinite depth well on the stage, and then flipping through the textbook in his hand, the content was exactly the same, not even a word was wrong.

Of course

In the fully compatible content is limited to the question itself, and the content of the analysis question, Xu Mang is still the current class environment, after all... The problem of particles in the one-dimensional infinite depth well is not the content that freshmen are exposed to, but he talks about it in an easy-to-understand way, and it is easy to absorb this knowledge.

"Ugh..."

"You can speak so perfectly without a textbook, if you bring a book... I estimate that at least half of these 30 or so students are future Nobel laureates in physics. One professor smiled wryly, "I'm not kidding, really... Not at all!"

A few people around didn't speak, quietly feeling the experience brought by the new textbooks, perhaps because of Xu Mang's teaching, which raised this experience to a higher level, but there is one thing to say, this new set of textbooks is very good, no... It's perfect!

Time passed minute by minute, until the moment the bell rang, the first-year students present could not believe that the time of class was so short, as if it had only been five minutes before class ended.

Oh, my God!

Are you going to be separated from Professor Xu?

"Huh?"

"Class?" Xu Mang was halfway through his speech, glanced at the halfway question on the blackboard, and said helplessly: "Class is over... Let's get out of class!"

"Professor Xu, let's talk for ten more minutes!"

"Professor Xu, let's finish talking about this topic!"

"We're going to class!"

Faced with the tide of requests, Xu Mang didn't give them face, and said seriously: "I'm sorry... I'm not a procrastinating teacher, so let's get out of class!"

In a wail,

Classes are over.

However, since it was the end of class, the thirty or so students became even more crazy, and instantly flocked to Xu Mang's side, in order to meet the cooperation request of the majority of students, Xu Mang decided to take a photo together to commemorate the first battle of the new textbook.

"Team Leader Hu!"

"Please take a picture for us!" Xu Manchong shouted to Hu Feng, who was stunned.

Hu Feng: ???

I...

I'm but... The leader of the XX level was reduced to taking pictures.

But in the face of Xu Mang, Hu Feng has no choice, this is the niece and son-in-law of the leader of the leader, just kidding... He is not a simple second generation, thinking from another angle, he is a science generation.

Click,

A precious photo was taken,

Watching the students leave, Xu Mang came to the last few rows of the classroom and asked with a smile, "How are you?"

“...”

“...”

“...”

Although I really want to say that it is perfect, I can look at Xu Mang's cheap smile, and I have mixed feelings in an instant.

ultimately

Or abide by the facts, admit the perfection of this set of teaching materials, and indeed perfect.

meanwhile

On the Internet,

A photo suddenly came out of nowhere and sparked a wave of craze.

......