I picked up the god-level academic system

After Duan Lingxiao came out, he took the teaching materials and ran to the classroom. Fortunately, he caught up.

"Hello, classmates, I'm glad to meet you. Starting today, I will explain the course "Structure of Nanomaterials" to you."

He then wrote his name and email address on the blackboard.

"If you have any questions in the future, you can send them directly to my email. After seeing it, I will solve your confusion as soon as possible."

"Teacher, you are so handsome!" A girl in the audience shouted loudly.

Then everyone burst out laughing.

Duan Lingxiao smiled and said, "Just so-so. Being handsome has nothing to do with you. I'm already married and have children."

"what……"

Upon hearing the news, the female students present were in an uproar.

"Okay, let me explain myself in detail."

Duan Lingxiao continued, "Although I am young, I am definitely a serious professor at Beihua University. I am the developer of nano-flying knives and one of the first builders of this major."

"We should have met many of the students here when we were at summer camp."

"Teacher!" a classmate asked, raising his hand.

"Any questions?"

"When we get a Ph.D., will you be the one to take care of us?"

"Yes, I will grade all of your papers." Duan Lingxiao explained.

"Okay, no more nonsense, let's go to class now."

He opened the electronic blackboard and wrote the words "Nano Material Structural Unit" on it with a pen.

"I asked the students to do a preview before. Let's tell me together, what are the types of nanomaterial structural units?"

"Atomic clusters, nanoparticles, carbon nanotubes, nanorods, nanowires, nanoribbons, nanocoaxial cables." Everyone said in unison.

"Everyone said it very well. Next, we will explain these concepts in sequence, starting with atomic clusters."

"The properties of an atomic cluster are closely related to its structural characteristics. Its size is very small, the proportion of atoms on the surface is extremely high, and the forces acting on it are completely different from those of atoms in the bulk phase."

"For example: we can change the properties of matter just by adjusting the size of the cluster. At the same time, the problem of size will also bring about another effect, which is the quantum effect."

“科学家们经过很多的实验研究发现，在由纯金属原子组成的多面体团簇中，当原子数只有是2、8、20、28、50、82、126……时，结构才算稳定。”

"Even when they are heated to a liquid state, no damage occurs. This is the legendary magic number series, which cannot be explained theoretically so far."

……

The whole class lasted for 45 minutes. When Duan Lingxiao reached the 40th minute, he decided to end today's class.

"Okay, let's stop here for today's class. In the next 5 minutes, I will show you the charm of the Nano Flying Blade."

"Wow!"

When the students heard this, they applauded involuntarily.

"Be quiet and wait while I get the props."

With that said, Duan Lingxiao walked to the corner of the podium and took out the heavyweight marble he had prepared in advance.

"Have any classmates come up to verify whether this piece of iron is real or fake?"

As soon as these words came out, many boys raised their hands, and a few girls were eager to give it a try.

"Okay, just you two, the two boys sitting in the last row." Duan Lingxiao pointed at the two of them.

The two boys walked to the stage and thought they could easily lift the marble. Unexpectedly, the two of them moved it together, and they only moved it a little.

"Damn it, Teacher Duan, this is too heavy. How do you lift it by yourself?"

Duan Lingxiao smiled and said, "Tell everyone, is this marble real or fake?"

"It's absolutely true. Who would fake such a heavy thing?"

"Okay, thank you two classmates, please come back."

Next, he took out the nano-flying blade from a box. In order to let everyone see that it was real, Duan Lingxiao specially hung balls on both ends of the flying blade, otherwise the students far away would not be able to see it.

He slowly picked it up, "Can the students see it?"

"I can't see it!" Everyone opened their eyes wide, but they couldn't see clearly at all.

"Can't see clearly enough to move forward."

With Duan Lingxiao's encouragement, the students behind also rushed up.

"Oh my God, can this thing really cut through marble? I can't even see it."

"You can touch it first, one by one, don't touch it in the dark."

"Hahaha!" When everyone heard this sentence, they couldn't help being amused.

"Okay, now the students can feel the presence of the flying blade, and the experiment will officially begin."

Duan Lingxiao straightened the flying blade and cut it towards the marble.

There was no lag or flaw at all. The marble was neatly cut into two halves, four halves, eight halves...

I don’t know how many times it was cut, but the marble was completely broken into pieces.

The students were dumbfounded and didn't know what to say.

"OK, the experiment is over."

As soon as he finished speaking, the bell rang for the end of get out of class.

Duan Lingxiao said, "get out of class is over, students. Please help me throw out the marbles for me later. Thank you."

"Okay!" Everyone replied in unison.

He took the textbook and walked out. It was time to eat at this time. He had to take the baby to eat in advance, otherwise there would be too many people and it would be unsafe.

At this time, a girl caught up with him.

"Teacher Duan, do you have time at noon? I'll treat you to dinner and want to ask you some questions."

"If you have any questions, just send them to my email. I will reply to you when I get back." Duan Lingxiao had no intention of paying attention to her.

"Teacher Duan, my question is very important. Can you help me answer it now?"

"You ask the question first."

"I can't tell you now. I can't tell you until we eat." The girl said shyly.

"Humph!" Duan Lingxiao snorted, "You have only two choices, either tell me now or send an email. I have something else to do and I can't accompany you."

The girl was very angry after hearing this and said, "Teacher, are you too serious?"

"Bye." Duan Lingxiao ignored her and ran away.

With his running speed, girls couldn't catch up even if they wanted to.

However, she likes this kind of teacher, who is upright and unpretentious. This is the man who is worthy of her.

At this time, a voice came from behind.

"Liu Han, what are you doing here? Are you going to eat?"

"Is it still early to eat?" the girl said, looking at her watch.

"There will be more people soon. Let's finish eating early so there's no need to squeeze in."

"That's right, let's go. I recently discovered a canteen that's particularly delicious. I'll take you to eat there."

After that, she and her best friend walked to the cafeteria.