One fried rice, one sweet and sour strips, one sword bean and one potato, and a bowl of small pork rib soup.

Such a set meal that was enough for Wu Bin to eat only cost 10 yuan, and Wu Bin paid special attention to it when he visited the food area, and found that the number of dishes below six cents was very large, which can be said to be a conscience.

Sitting on the cushioned chair, I saw Song Nanfeng sitting opposite him move his chopsticks, and Wu Bin, who had basically not eaten for a day, "sighed" and ate it.

Song Nanfeng looked at Wu Bin's eating appearance and shook his head with a smile, and also ate his own noodles.

"Wow...... You're exaggerating, aren't you? ”

When Wu Bin stuffed two pieces of sweet and sour strips and a large mouthful of fried rice into his mouth, a somewhat familiar immature female voice suddenly came into his ears, and when he turned his head, it was indeed Gu Ningshan who he had met in the afternoon.

After quickly chewing the food in his mouth and swallowing it in one gulp, Wu Bin waved his hand and greeted, "Hey, what a coincidence." ”

"Hello, it's you who saved Xiaobai, thank you." At this time, another tall girl with a ponytail stood next to Gu Ningshan and greeted Wu Bin.

Seeing that Wu Bin was a little stunned, Gu Ningshan said: "Let me introduce, this is Ding Yuhai from the Department of Chemistry, Senior Sister Ding, Xiaobai is now placed in her house." ”

"Oh, hello, Senior Sister Ding." Wu Bin nodded towards Gu Ningshan.

Then, when Gu Ningshan was about to introduce Wu Bin, she suddenly found that Song Nanfeng, who was sitting opposite, was looking at them with a look of surprise, so she said, "Professor Song is good" and then pointed at Wu Bin and asked, "Huh?" Professor Song, are you with him? ”

Song Nanfeng nodded after hearing this, and said with a smile: "Yes, I am taking him to visit the academy, I am more curious about how you met." ”

After listening to Song Nanfeng's words, Gu Ningshan looked at Wu Bin in surprise and said, "Wow, are you so big?" I actually asked Professor Song to take you on a tour of the college. ”

After hearing this, Professor Song immediately said: "You don't know about the co-author, then let me introduce to you, his name is Wu Bin, the champion of CPhO this year, and now he has entered the national team." ”

"Awesome, IPhO come on, senior sister will call for you." Ding Yuhai gave a thumbs up to Wu Bin.

Gu Ningshan on the side nodded thoughtfully and sighed.

"No wonder~"

At this time, Ding Yuhai suddenly stretched out his hand and touched Gu Ningshan's head, his face was full of sweet doting.

"Senior Sister Ding~ Didn't I say don't always touch my head!" Gu Ningshan turned her head and said helplessly.

"Who told you to be so cute when you think about problems~ I can't help it." After speaking, Ding Yuhai suddenly looked at Wu Bin and said, "You think so too, right?" ”

"Is she cute......" Wu Bin shook his head, "I just think she's super powerful." ”

Gu Ningshan and Ding Yuhai were stunned at the same time after hearing this.

"Of course Shanshan is amazing~ It doesn't prevent her from being cute." Ding Yuhai said and pinched Gu Ningshan's little face again.

This time Wu Bin just smiled and didn't say anything, since he discussed Kanot's theorem with Gu Ningshan on the bus in the afternoon, Gu Ningshan is no longer a little girl in his eyes, but a powerful person with knowledge beyond him.

"Okay, what's there to discuss about this, let's eat first~" Gu Ningshan, who broke free from Ding Yuhai's "clutches", put down the dinner plate and sat next to Wu Bin.

"That's all you eat?" Looking at the only bowl of porridge and two vegetarian dishes on Gu Ningshan's plate, Wu Bin couldn't help but ask.

"I have a small appetite, and I don't like meat much." Gu Ningshan replied.

"Uh-oh." Wu Bin said and ate two more bites of fried rice.

"That's right, Shanshan, what do you mean by the 'no wonder' you just sighed?" Ding Yuhai, who walked to the opposite side and put down the plate and sat down, asked.

Gu Ningshan took a sip of porridge and replied: "I saw that he was still holding a hot book in his hand when he hugged Xiaobai, and I originally wanted to point out this junior brother, but I didn't expect him to master all the differentiations, so in the end, it became me and him to evaluate Kanot's theorem considerably." ”

Ding Yuhai covered his mouth and snickered after hearing this: "Guidance? I think you're trying to bully this junior brother. ”

Ding Yuhai could obviously see that Gu Ningshan didn't know that Wu Bin had participated in the competition before, at least when he was about to talk to him, he just regarded him as a senior who came to visit the University of Science and Technology.

And if Wu Bin is just an ordinary high school student, even if he has a good score in high school physics, the university can still easily make him doubt whether he has studied physics.

"Did you do something to upset our family?" Ding Yuhai snickered and pretended to be serious about "questioning" Wu Bin.

"Me?" Wu Bin pointed at himself and shook his head, "No......"

"Oops~ I really wanted to talk to him because I saw her reading Retong's book." Gu Ningshan was a little weak when she spoke, after all, she couldn't say that she wanted to bully him a little because she was envious of Wu Bin's ability to attract Xiaobai.

Seeing Gu Ningshan pursed her small mouth, Ding Yuhai didn't say anything more, and lowered his head to eat.

After taking a sip of porridge, Gu Ningshan glanced at Wu Bin, who was still not very good-looking, and the corners of her mouth suddenly hooked, and asked, "Then do you have any research on the Rutherford atomic model?" ”

"Well, I have understood" Wu Bin nodded, "I read Fermi's β decay theory before, and I feel quite interesting." ”

"You really see everything...... Gu Ningshan spread her hands, "Then you already know the weakness?" ”

Wu Bin's eyes lit up after hearing this, and he quickly finished eating the remaining bit of fried rice, and chatted with Gu Ningshan.

Looking at the two people on the other side who were chatting about the atomic model without saying a word, Song Nanfeng smiled very happily, and he didn't mean to disturb them at all.

After discussing for about half an hour, Wu Bin, who was chatting about the concept of exchange force, suddenly threw out a question: "Actually, I have a problem with gravity. ”

"Well, you ask." Gu Ningshan's little face was full of confidence.

"Because of gravity, two massive planets can attract each other, but I don't think that's the essential reason, why is there gravity? As far as I know, Newton only summarized this phenomenon, and every time he proved that it was successful, all of them had the law of gravity, right? ”

"Well...... In fact, this problem has not been completely solved until now, but in quantum electrodynamics, it is believed that electromagnetic forces interact in the line of sight by exchanging photons, or more precisely, virtual photons. ”

"Can't you see......"

Wu Bin nodded with some disappointment...... In fact, he didn't like the concept of fiction very much......

Whether it's imaginary numbers, imaginary dimensions, or voids, including the imaginary photons that we are talking about now, anyway, as soon as many academics are involved in imaginary, it basically means that this topic is here, and then talking about it is basically hard.