Xijing University, Room 306, Comprehensive Building.
This is an undergraduate section on Thermodynamics and Statistical Physics.
Under normal circumstances, the attendance rate of this class is less than 60%, but today the entire classroom is full.
Occasionally, some students whispered, with a bit of excitement on their faces.
—The teacher of their class fell ill and was hospitalized, and had an operation, so Shen Zhijin took the class for these two weeks.
Since Shen Zhijin appeared in the classroom last class, the news spread quickly throughout Xijing University.
So, this was the second class, and everyone was moved by the news, and they all came.
Shen Zhijin came by stepping on the bell.
He was obviously very young, but he had his own aura. As soon as he stood there, everyone unconsciously quieted down.
However, he was born handsome and delicate, which was particularly eye-catching.
The admiration in the eyes of many girls is undisguised.
Shen Zhijin stood still on the podium, his eyes swept across the classroom.
He didn't hold any teaching materials in his hand, only a roster.
but-
There seems to be no need for a roll call.
He went straight to the lecture.
At this moment, a man stooped and slipped in through the back door.
When Shen Zhijin saw the familiar little backpack, he paused suddenly.
Everyone didn't know why he stopped suddenly, but they all had tears in their eyes.
—The God of Learning finally showed mercy and gave them extra time to think about what he just taught
Gu Tingyin managed to find a seat, but it was in the middle of several seats, and there were people sitting on both sides.
She patted the shoulder of a student in front of her lightly, and whispered:
"Student? Classmate?"
The boy was staring at the writing on the blackboard and worrying, when his train of thought was suddenly interrupted, he couldn't help feeling a little angry.
But when he turned his head, he saw a beautiful little face.
He was stunned for a moment, the previous displeasure dissipated, and he looked at her in a daze.
Gu Tingyin showed him an apologetic smile:
"Excuse me?"
The boy came back to his senses immediately, and quickly responded with a red face.
However, in order to make it easier for her to sit, he directly moved a seat in and gave her the seat near the aisle.
In the next second, Shen Zhijin saw her put down her small backpack, then bent her eyes at the boy next to her, and smiled brightly.
It seems to be saying thanks.
With a slightly restrained expression, he tapped on the podium with his fingers.
In the quiet classroom, this sound was heard clearly, and everyone looked over with concentration.
He said softly:
"Have you finished copying the content on the blackboard? Let's talk about the thermodynamics of magnetic media."
Everyone was shocked.
This, so fast
Someone tremblingly asked:
"Shen, Senior Shen, didn't you only learn the total differential of the Gibbs function today?"
"That part takes more than a class."
Shen Zhijin glanced at the clock hanging at the back of the classroom,
"Give you five more minutes."
After the voice fell, everyone was quiet for a moment, and then immediately began to frantically copy the writing on the blackboard.
Those who can be admitted to Xijing University are of course the proud ones of heaven.
But I have to say that there is still a gap between a master of learning and a god of learning.
Shen Zhijin came to class, she was very efficient and gave lectures quickly.
Most people are basically not able to keep up with his thinking, so they can only take notes first, and then go back and comprehend it by themselves, so that they can slowly understand.
This is especially true today.
He was the only one who could do such a perverted thing. He finished what their old professor had to teach for two weeks in one class!
Gu Tingyin saw that the boy next to him started copying furiously, a pen almost flew out, so she subconsciously dodged to the side.
Well, so brutal...
Fortunately, she just came here to take lessons.
But you have to look a little bit in class, so she took out her notebook from her bag and copied it.
Shen Zhijin looked at her for a while.
It should be the first time for her to listen to this class, but she copied it so intently that she didn't pay much attention to him the whole time.
Those five minutes seemed to go by so fast.
Shen Zhijin looked away and continued with the class.
…
After a class, almost all the students were dizzy.
Attending Shen Zhijin's class was really painful and joyful.
Gu Tingyin was about to stand up and go over when she saw a tall girl walking to the podium.
"Senior Shen, I didn't understand in class just now, can you explain it for me again?"
As she spoke, she handed over a book, but her eyes were still glued to Shen Zhijin.
Gu Tingyin's face suddenly collapsed.
Shen Zhijin looked down:
"where?"
The girl was overjoyed and pointed her finger.
Gu Tingyin clutched her little notebook tightly.
She couldn't quite hear what they were talking about here. Of course, even if she did, it was probably in a fog and she couldn't quite understand it.
Shen Zhijin said a few words in a low voice, and the girl nodded repeatedly.
Gu Tingyin looked down at the notes she had copied, and slumped down on the table.
Before, she felt that she was already very happy to attend Shen Zhijin's class and meet him.
But now, seeing those people discussing things with him that she couldn't understand, she realized that there seemed to be something between herself and him.
She is unhappy again.
This kind of distance cannot be eliminated by her coming over and looking at him.
She didn't even know how to ask him a question.
After Shen Zhijin finished speaking, she raised her eyes and found that she didn't come to look for him, but stayed in her place, fiddled with the white pony doll on the backpack, and even wrote on the small head: Depressed.
He raised his foot and was about to pass.
Seeing that he was going to leave, the girl felt sad and said quickly:
"Senior Shen, can you tell me about the entropy just now? I—"
Shen Zhijin glanced at her lightly from the side, speaking calmly:
"I've said this part twice today. If you can't understand it, then you may not be suitable for physics. Consider changing your major."
The girl never expected that Shen Zhijin would say such a thing, her face turned red and white.
And the few girls who were eager to come over to ask questions immediately lost their minds when they saw this.
—Facts have proved that trying to get close to Shen Zhijin by asking questions has no effect except to prove to the god of learning that he is a hopeless scumbag.
The people in the classroom gradually dispersed.
Gu Tingyin heard footsteps approaching.
"Why don't you go?"
Shen Zhijin stood beside her and asked.
Gu Tingyin sat up and looked up at him.
Only then did he see the grievance visible to the naked eye on her small face.
He paused, and there was a bit of gentleness in his voice that he hadn't noticed:
"What's wrong?"
Gu Tingyin whispered:
"I didn't understand either..."
Shen Zhijin's eyes fell on the open notebook on her desk.
Hmm, very neat and beautiful.
Except for the wrong copy of the formula, there are no shortcomings.
"Where did you not understand?"
Gu Tingyin choked for a moment, seeing that he seemed to be planning to answer for herself, he hesitated and pointed to a place.
Shen Zhijin took a look.
"That's the full differential form of internal energy. During the exam, just memorize it and directly bring in the value."
"..."
Her hand slipped down unconsciously.
"That is the basic equation of thermodynamics used when the volume change of the magnetic medium is ignored."
"..."
She began to regret copying the blackboard!
"Still don't understand?"
Shen Zhijin asked.
She blushed.
The girl just now could at least ask a few questions, but she couldn't even ask a single word.
Shen Zhijin looked at the clock on the wall again, and sat down beside her.
"I don't have any other classes today, but I have to go to the laboratory at six o'clock in the evening to prepare for the experiment."
Shen Zhijin said,
"What else did you not understand?"
Gu Tingyin opened her eyes wide in shock.
This means... The rest of his time today belongs to her
Seeing that she was silent, Shen Zhijin took her pen.
"The first law of thermodynamics, have you learned it?"
She looked at him and coughed lightly:
"I heard."
The answer is really subtle.
Shen Zhijin paused at the tip of his pen, then simply put it down again.
"Also called the law of conservation of energy. It means that the total energy in a closed system always remains constant."
"Energies are neither created nor destroyed, but merely transformed from one form to another, or transferred from one object to another, while the total amount of energy remains the same. It is the law of nature. One of the universal laws."
"It's also fundamental to learning the course."
Gu Tingyin's eyes lit up:
"That's it!"
…
After one hour.
In the huge classroom, the two sitting side by side were silent.
After a while, Gu Tingyin finally summoned up her courage and asked cautiously:
"Shen Zhijin, are you thirsty?"
Shen Zhijin: "It's okay."
She quietly put away the notebook.
"How about I buy you something to drink?"
Shen Zhijin nodded slightly.
She finally breathed a sigh of relief and quickly picked up the backpack.
"There's a dessert shop near the school. I heard it's delicious. Shall we try it?"
…
This dessert shop opened near Xijing University. Although the price is a bit expensive, it is very popular because of its delicious taste.
Fortunately, at this time, there are not many people in the store.
Gu Tingyin stood in front of the cabinet, looked at it and said:
"The headquarter of this store is in Baicheng. This seems to be the first branch they opened in Beijing. When I was studying in Baicheng, I really liked their peanut milkshake!"
Shen Zhijin paused:
"Aren't you allergic to peanuts?"
"Yeah, so I just smell it every time." Gu Tingyin wrinkled her nose with regret, but quickly pointed to the other desserts in the cabinet, "And their peanut cakes are also theirs. Signboard, you must try it!"
In the end, Shen Zhijin ordered a cup of peanut milkshake and a peanut crisp, and Gu Tingyin ordered an earl gray tea.
The two chose a relatively inner position.
First up was the peanut milkshake.
Just as Shen Zhijin picked it up, a small head leaned in front of him.
Gu Tingyin leaned forward slightly, her straight nose shrugged, envious.
"smell good!"
Why is she allergic to peanuts
"It must be delicious, but unfortunately I can't eat anymore, Shen Zhijin, can you help me eat more?"
She was so close that he could see her distinct eyelashes.
So close, as long as he raises his hand slightly at this moment, he can touch her soft and fair cheek.
Shen Zhijin backed away calmly.
"Um."
Gu Tingyin also sat back, resting her chin on her hands, urging expectantly:
"Try it quickly!"
He took a sip with a straw, and the rich aroma of peanuts and milk filled the air.
Her dark round almond eyes stared brightly at the cup of peanut milkshake, and then at the corner of his lips.
"Is it good to drink?"
Shen Zhijin's Adam's apple moved slightly, and suddenly felt that the taste was a bit too sweet.
So sweet, so thirsty.
Happy National Day everyone!
(end of this chapter)