And just when He Yang was considering the possibility of climbing over the wall to get in, Aunt Wu, who took care of Xu Qingzhou, came out and opened the door.

At this time, Xu Qingzhou was leaning on a rattan chair in the backyard and reading a book.

"Xu Qingzhou, you actually ignore me!" He Yang roared angrily as he rushed towards Xu Qingzhou.

"So what?" Xu Qingzhou put the book on his lap and looked at He Yang with raised eyebrows, his face as white as jade was indifferent.

Seeing this, He Yang was cold, and his momentum suddenly fell by half.

"Actually, it's nothing, if you tell this little girl what she doesn't understand in the book, I'll forgive you." He Yang coughed lightly and pretended to be generous.

"Not available." Xu Qingzhou didn't think about it, and directly refused.

"Xu Qingzhou, you will lose my friend!" He Yang said angrily, only feeling that Xu Qingzhou made him lose face in front of He Manman.

"Oh? That's hard to ask for. Xu Qingzhou raised his eyebrows, and the words he said were cold and ruthless.

Seeing He Yang angry like a pufferfish, He Manman only felt a little helpless, although she desperately wanted someone to solve her doubts, but it was not good to be a strong man.

"Forget it, cousin, let's go back." He Manman pulled He Yang's sleeve and said.

"What's the matter, little Tuniu, look, my brother will definitely let him explain to you today." He Yang originally had the idea of retreating because of Xu Qingzhou's indifference, but when He Manman said this, he was afraid that he would lose his prestige in front of her, so he patted his chest and swore a promise.

"Oh? Then I'd like to see what you do today? Xu Qingzhou adjusted his sitting posture slightly, raised his eyebrows and looked at He Yang, looking like he was letting him perform.

Seeing Xu Qingzhou's appearance like this, He Yang pulled his hair a little irritably, and then inadvertently, he caught a glimpse of the book in He Manman's hand, and then his eyes lit up.

"Xu Qingzhou, I brought a book, you must not have seen this book, do you want to read it?" He Yang took it from He Manman, and then shook it in front of Xu Qingzhou.

"I don't want to." Xu Qingzhou glanced at He Yang, who was like a child, and didn't want to deal with it.

"Why wouldn't you want to? You haven't read this book! He Yang looked at Xu Qingzhou in disbelief.

"There are more books in the world that I haven't read." Xu Qingzhou sneered, and then said, "If you don't have anything else, you can get out." ”

"I ......"

"Don't make me say it a second time." Xu Qingzhou had obviously lost his patience, he was cold by nature, if He Yang wasn't his friend, he wouldn't have wasted so much time with him at all.

He Yang felt the cool aura emanating from Xu Qingzhou's body, and trembled, and understood that if he didn't leave, Xu Qingzhou would be really angry.

"Little Tuniu, tomorrow, brother will find you someone again, tell you what's going on?"

"Quantum Electrodynamics." He Manman pursed his lips and said.

"Are you reading Feynman's book?" And at this moment, Xu Qingzhou, who had already lowered his head to read a book, suddenly raised his head and looked at He Manmandao.

"How do you know?" He Yang looked at Xu Qingzhou with some surprise.

"If you are stupid, you read more, isn't it written in the book in your hand? Fey

ma

Xu Qingzhou glanced at He Yang, saw that he didn't understand, and explained: "And as far as I know, there is only one Fey in the physics community

ma

He happened to be the founder of quantum electrodynamics, and the Nobel Prize in Physics in 65 years. Philip. Feynman. ”

"That's right, this is Feynman's Lecture Notes on Physics, which is based on recordings of Feynman's lectures." He Manman nodded, his eyes were a little shiny and looked at Xu Qingzhou, then he took the book in He Yang's hand and handed it to Xu Qingzhou.

She had a hunch that the young man in front of her might be able to solve her current problem.

Xu Qingzhou took the book, his fingers gently flipped the pages, and after a while, he frowned and said, "You are a physics student?" ”

He Manman was stunned when he heard this, but He Yang on the side laughed.

"Haha, I didn't expect Xu Qingzhou to have a miscalculation when you were a little girl."

"Only in high school?" When Xu Qingzhou heard this, it was rare to have a little surprise on his indifferent face.

"How much can you understand this book?" Xu Qingzhou asked again.

"Seven or eight points." Although He Manman didn't know why Xu Qingzhou asked, he still replied.

"Seven or eight points?" When Xu Qingzhou heard this, his eyebrows raised again.

Seeing this, He Yang rolled his eyes and said with a smile: "What's the matter?" Don't believe you can ask? ”

Xu Qingzhou glanced at He Yang, and He Yang immediately shut up.

"What part of quantum electrodynamics do you not understand?" Xu Qingzhou asked.

"These places." When He Manman's eyes lit up when he heard this, he saw her flip through the pages of the book and find the locations that she had lightly marked with a pencil.

"Yo, I'm pretty well prepared, but I don't know much about quantum electrodynamics, and I can't guarantee that I will be able to solve your questions."

Xu Qingzhou said, picked up the book, and explained why it was so long.

I can't help but say that Xu Qingzhou's explanation is not vivid, but it is concise and to the point, and He Manman has a certain foundation in physics, so he can naturally have a sense of sudden enlightenment.

I don't know how long it took, He Manman's current problems were finally explained clearly by Xu Qingzhou.

"If you're interested in physics, you can also read these books." After returning the book to He Manman, Xu Qingzhou wrote a few more titles on paper and handed them to He Manman.

"Thank you so much." He Manman glanced at the strong and powerful font on the paper, and looked at Xu Qingzhou Dao very gratefully.

"Don't thank me, I just happen to be interested in quantum electrodynamics lately." Xu Qingzhou said casually, and threw a ball of paper towards He Yang's head.

"Huh? Finished? He Yang was already drowsy when he sat on the side, but he woke up suddenly after being smashed like this.

"Huh! You use my house as a guest house, and you sleep quite comfortably, huh? Xu Qingzhou glanced at He Yangdao coldly.

"Hehe, isn't this afraid of disturbing you?" He Yang laughed dryly, then looked at He Manman and said, "How is it?" Little Tuniu, you can understand what Xu Qingzhou told you, right? ”

"You think everyone is as stupid as you are?" Before He could speak, he saw Xu Qingzhou on the side sneering and said.

"Then the little earth girl is smart?" He Yang raised his eyebrows and retorted.

He has never heard from Xu Qingzhou's mouth since he was a child, who is smart!

But he didn't expect that Xu Qingzhou glanced at He Manman this time, and then nodded, "It's really smart." ”

When He Yang heard this, he almost dropped his jaw in shock, according to his understanding of Xu Qingzhou, Xu Qingzhou was wrong!