Different from the last Wenhai self-driving trip, this time Li Zheng drove a car, both his mentality and driving skills were much more stable.

Because he knew that no one's car could hit him on the entire highway.

While driving, I pointed to the trunk.

"There's also GPS location over there, so if we overturn in the mountains, the rescue team can easily find it. ”

"In addition, there is a week's worth of food stockpiles, emergency medical kits, knives at the control edge and a small water purification unit. ”

"Theoretically, we only need to purify the water that our bodies excrete to live for a long time. ”

"I've also read the edible guide on insects and wild mushrooms, and it's stable. ”

"Hmm...... Lin Yujing became more and more frightened when she heard this, "Are we going to the Foggy Mountains, or crossing the Taklamakan ......?"

"Be prepared. Li Zheng smiled, "This is probably the consciousness of the head of the family." ”

Lin Yujing turned around and saw all kinds of large bags and small bags of emergency supplies, although it was very excessive, but she still shook her head and smiled: "However, you are really attentive, I thought you would bring a cart of rolls......"

Li Zheng's eyes widened, and he almost stepped on the brakes when he heard it: "Earlier, it's still too late to turn around and print the paper and go to the study room." ”

"Alas......" Lin Yujing sighed helplessly, "Sure enough, I'm still forcing myself...... Actually, I can do it all, I can make rolls and go camping. ”

"???" Li Zheng's expression tightened, realizing that things were not simple.

Based on the principle of "a woman speaks and listens", she should have a clear intention.

If you speculate like this, there is no doubt that -

It's a trap!

"If you say camping, you have to camp. Li Zheng said sharply, "I like camping." ”

"You really don't have to force yourself. Lin Yu leaned quietly on the car window, lit the glass casually, and sighed.

Li Zheng was also cold.

What is the situation, so depressed?

Is this also a trap?

After weighing it, Li Zheng said tentatively: "If you are uncomfortable...... Why don't we play so big and just find a place to relax?"

"It's fine. ”

It's okay?

Women, there is no such thing as being fine.

Their existence is a matter of fact.

Li Zheng thought about it and decided to take a gamble.

Because of the guarantee of vehicle safety, for the first time in his life, he chose to hold the steering wheel with one hand, and his right hand silently rested on Lin Yujing.

Lin Yujing flinched and sighed, but she didn't slap him away.

Li Zheng is stable, and he smiled casually while masturbating: "If you have any troubles, just say it, is the class too simple or the teacher is too slow?"

"It's a professional thing...... Lin Yujing sighed again, "Astronomy...... It felt like there was nothing to do......"

"Aren't there a lot of big astronomical projects?"

"We have to wait, we have to wait for a long time, and even if the telescope and astronomical satellite are built, we will have to wait a long time to accumulate data, and then we will find out what is worth studying. Lin Yujing looked at the sky and said, "Although I hate going abroad, sometimes, I really want to see what Voyager 1 has sent back......

After thinking for a while, Li Zheng gradually returned to the state of holding the steering wheel with both hands.

"Can I understand that—"

"In view of the gap of one or two generations between China's astronomical telescopes and Europe and the United States, the astronomical data you will be able to access in the future will be extremely limited, and even the things that European and American astronomers studied half a century ago. ”

"As for the new generation of large telescopes, although our project has already started, it is still 10 years away from being able to study something. ”

"Hmm. Lin Yujing nodded, "For a long time, the observation data I could access was not as attractive as the one published by NASA and the European Observatory. ”

"So you've been worrying about this since you haven't even eaten with me lately?"

"No, I've been learning. ”

This is perfunctory.

But Li Zheng has a way to know if she is really perfunctory.

Xuelunyan - Swastika!

【Lin Yujing】

[Academic Ability: 2268]

As a comparison, Li Zheng himself has experienced the second half of this week, and his academic ability is only 4327.

This progress is already exaggerated.

"Hmm......" Li Zheng trembled a little as he drove the car, "After Huang Er, I'm a little uncomfortable with your learning intensity." ”

"Then do you know why?" Lin Yujing turned her head to look at Li Zheng and smirked.

"Ha, I knew that. Li Zheng raised his eyebrows excitedly, "You finally like to study too." ”

"Hmm......" Lin Yujing rubbed her head with difficulty.

The reason, of course, is not that she likes to learn......

It's that Li Zheng, who she likes, likes to study.

She just didn't want to be too far behind, so she went from going hand in hand to being coaxed by Li Zheng to play.

That......

Isn't that the second Zhang Xiaoke!

Lin Yujing's originally low mood was aroused by this again, and she twisted out of the window a little angrily: "I warn you, never coax me." ”

"Well, why did you suddenly say this when you had a good conversation?"

"Just don't coax!" Lin Yujing turned her head and glared.

"Okay, good, no coaxing, no coaxing, no anger. ”

"You're just coaxing. Lin Yujing instantly regained the feeling of shouting and waving her fist, "The dog has to coax." ”

"Where is this...... Li Zheng laughed, "Okay, okay, I'll do the other way around...... What do you like, I learn from me, it has nothing to do with you. ”

"Well, that's right. Lin Yujing nodded with satisfaction.

Li Zheng has never seen this kind of request, and this level has exceeded the limit of his emotional intelligence.

However, it seems that he has a very high status.

So be it.

It's better to talk about learning and have fun.

Li Zheng turned to ask: "Anyway, I've been studying condensed matter recently, have you learned?"

"???," Lin Yujing exclaimed, "I happened to be learning this recently." ”

Sure enough, it's still fun to learn!

Fuck your mother's feelings, and from now on we will only talk about learning.

Li Zheng is interested: "How much have you learned?"

"Ordinary graduate student status. ”

Li Zheng laughed when he heard this: "Aha, you can't do this, I'm at least an excellent graduate student." ”

"I'm humble. ”

"There is no such thing as self-humility in learning, you are not confident. ”

"Turn around!

"Don't worry. Li Zheng smiled, "Bring it, I'll go out for the night, can I not bring the rolls?"

"Just know!"

"Let's talk about it later," Li Zheng asked again, "After learning it, I have a new understanding of cutting-edge science." ”

"!!" Lin Yujing seemed to have been poked, and instantly compared with a glorious face.

"That's it, before I went to university, I always thought that the more you get to the forefront, the more distant the various fields will be as the majors are subdivided. ”

"Who knows the opposite. ”

"The cutting-edge science part is precisely the intersection of disciplines. ”

"Physics, chemistry, and biology, which were previously roughly divided, have been recombined in each field. ”

"For example, the electron microscope you just worked on is a device invented by physicists for biological research, and it turns out that chemistry is also very useful. ”

"Condensed matter too, there's a lot of chemistry and materials science content. ”

"I feel like I'm an elite in various fields, and when I have nowhere to go, I suddenly start visiting each other. ”

"100% agree. Li Zheng also excitedly said, "I originally thought that condensed matter was a difficult thing, but when I learned it, it was inexplicably smooth, and now I think about it, it is a hodgepodge of disciplines." ”

In fact, the specific content of condensed matter is not as lofty as its name itself.

It is roughly equivalent to "solid state physics + materials science + physical chemistry + chemical physics".

In essence, it is the study of the structure and properties of matter.

When it comes to application, it is mainly focused on materials.

Maybe it's just to distinguish it from those few majors that look very earthy, so I took such a tall, handsome and physical name.

Objectively speaking, 70% of the world's physics people are engaged in condensed matter.

There is no other reason, this has application value, and it is easy to get funds and produce results.

At the same time, this seemingly "dirty" major eventually became the final destination of most "physics geniuses who aspire to unified field theory".

Li Zheng and Lin Yujing are relatively simpler, theoretical physics is certainly the holy grail, but they are not too obsessed, not to mention that it is useless to be obsessed with this kind of thing.

Unconsciously, they have also become "wide-net players".

The atmosphere along the way has also transitioned from "emotional running-in" to "learning and exploring".

When it comes to condensed matter, this quickly brings us to the most popular aspect of "topological materials".

If the concept of condensed matter can be barely understood by ordinary people, then it is almost impossible to understand topology, which is itself a difficult advanced mathematical concept.

But as Li Zheng, who adheres to the "Feynman learning method", he has high requirements for himself.

For him, the ultimate criterion for understanding a concept is -

can be explained to Liu Xin within 50 words.

From general relativity to Russian elementary school calculus.

Of course, based on Liu Xin's knowledge structure, this kind of explanation always ignores some rigor and uses some down-to-earth metaphors.

For example, topological materials, translated to Liu Xin, can only be rudely become "durable materials".

The so-called resistant material means that no matter how you twist it, tear it, freeze it, burn it, and shock it, its properties can be perfect without any change.

Theoretically, you could even arrange its atoms in a one-dimensional straight line, but its essence could remain the same as it was in the beginning.

It can be said to be a macroscopic display with a strong quantum flavor.

The frontier is like this, it is already a multi-person movement of materials science, physics, and chemistry, but when it comes to topological materials, even quantum physics is involved with great interest.

......

In the parking lot at the foot of the Foggy Mountain, when Li Zheng parked the car, he was already sweating profusely.

It's not that I'm tired of driving, but it's a good conversation.

Sure enough, learning is the ultimate enjoyment.

It's fun to study with the people in the academy, but that rhythm is still too old, how can it collide with quietly.

Similarly, Lin Yujing also re-experienced the suffocation of the sweaty light shirt in high school.

What makes college bland and boring......

It turned out that it was just because the scum smell was not enough!

"Sure enough...... We got it wrong. Li Zheng turned off the engine and nodded Zhenzhen, "the boyfriend and girlfriend...... Study, I really just want to study with you. ”

"Hmm!" Lin Yujing was so bad that he was speechless, "Don't stop, it's time to say graphene superconductivity." ”

Hearing the word graphene, Li Zheng frowned.

"Oh ha!" Lin Yujing raised her eyebrows, "Yuan Yuan second?"

"Shut up ......"

"Hahahaha!" Lin Yujing covered her mouth and laughed wildly, "Yuan Yuan II, Yuan Yuan's successor, purely domestic Yuan Yuan ......"

"Is it fun?"

"It was so much fun. ”

No way......

Speaking of physics, condensed matter, topological materials, superconducting topological materials, graphene.

can't avoid Yuan Yuan, a young genius.

Compared with Li Zheng, he is more rooted and red, born in the junior class of the University of Science and Technology, and became famous in Berkeley, California.

When Li Zheng was born, it was natural for the media to take a look at Yuan Yuan, who appeared in "Nature" at the age of 22.

Of course, Li Zheng himself respects him very much, but he will vomit a lot when he is called XX second all day long.

If he had to say it, he would rather be called Li Yi II.

is not a loss, and faintly reveals a domineering.

The two chatted about graphene while backpacking and hiking.

This is undoubtedly another emotional blow to the family of three who were originally traveling neatly and happily next to them.

"No one knows graphene better than I do. ”

"Say that you are Yuan Yuan's second, and you are still energetic, then you tell me what is the one-dimensional structure embodiment of graphene?

"Nanotubes. ”

"Zero-dimensional. ”

"Taylorene. ”

"Three-dimensional?"

"Three-dimensional...... What is the three-dimensional nature of graphene?"

"Graphite, scum!"

"...... Losing on such a boring question...... Can you name three ways to prepare graphene?"

"Chemical vapor deposition, mechanical stripping, molecular assembly, this kind of problem is too stupid, slag. Now you can make up the hexagonal honeycomb structure of graphene, let the distance between the two carbon atoms be a, and immediately calculate its two-dimensional inverted sagittal sagittaria. ”

"Wait, I'm going to have to stop and stare at this...... Um a/2 (3, +-√3). Now that you've reached this level, let's talk about the Fermi level......"

Originally, he was a family with Meimei, watching such two people fly by.

Before you know it, you roll up.

"Look at people, they're about the same age as you...... What did you learn in school?"

"Language ...... Language ......"

"Recite a "Song of Long Hatred". ”

"Huh? Is there this?"

This way, like flying clouds and sweeping the sun, others can't see the two of them clearly, and they only hear terms such as "tight binding model" and "I-V curve", and they are left behind.

By the time they reached the top, the two had already made a clear condensate of the condensate.

Although there was no intention of taking a group photo, I still walked to the commanding height of the mountain where the elevation stone monument stands.

Thoroughly, there is a desire to shout.

Li Zheng didn't care about it, so he faced the mountains and began to gasp.

"Don't, don't!" Lin Yujing looked around nervously, "Don't shout strange things here......"

"Well, that's a very serious thing. Li Zheng sucked his feet and yelled at the mountains in a demonic rage-

"Lin Yujing, I want to research the topic with you!! isn't it wonderful!!"

After all, he is a strong physique, and this roar is full of anger and echoes loudly.

It made everyone around me stupid.

What is this pedal horse?

The suicidal confession of the ultimate straight male school bully?

This should have been very shameful, but Lin Yujing was inexplicably ignited.

Under Li Zheng's pushing, he held his hand at the mountains, squeezing his eyes hard and not responding.

"Wonderful! Condensed matter wonderful!!"

Everyone around them sat down.

This is...... A pair of Wenqu stars, fallen into demons?