"Is this it?"

"I guess it's here..."

"Hopefully here!"

Xu Mang stood in front of an office, he wanted to see the scanning tunneling microscope, and the University of Oxford happened to have a scanning tunneling microscope, and the key was in the hands of Professor Mattle.

Bang bang bang,

After a please,

Xu Mang hurriedly pushed the door and entered, and saw a middle-aged woman standing in front of a blackboard full of various calculations.

"Huh?"

"Professor Xu?"

When Matli saw that it was Xu Mang, she couldn't help but be stunned for a moment, then put on a smile and asked, "Is there anything Professor Xu looking for me?"

"Hey, hey..."

"Hello Professor Mattle. Xu Mang said with a smile: "I am looking for you mainly to learn about scanning tunneling microscopes. ”

"Scanning tunneling microscope?"

"Does this have anything to do with the gaseous carbon ring you're studying?" asked Professor Matlie curiously.

"There's no need to connect, it's just pure curiosity and wanting to find out. Xu Mang said with a smile: "I don't know if Professor Matlie is willing, I think this request should be very simple, not very difficult..."

Matley nodded and said seriously, "Professor Xu rarely speaks, how can I help you do it." ”

moment

Matlie took Xu Mang to the laboratory.

At first, I thought I would have to walk a distance, but I opened the door and walked to the opposite door.

Xu Mang probably knew about the scanning tunneling microscope before, a probe slowly passed through the material to be analyzed, the charge was placed on the probe, and a current flowed out of the probe, through the entire material, to the bottom surface.

As the probe passes through a single atom, the amount of current flowing through the probe varies, and these changes are recorded.

The principle is that the current rises and falls as it flows through an atom, so that its outline can be probed in great detail, and by plotting the fluctuations in the amount of current, human beings can get a grid structure diagram of a single atom.

I understand the truth,

But understanding and operating are two different things, just like Xiao Man knows that he is an airport and wants to be bigger, but this is not to say that big is big, there is a process from flat to big, even if I see a lot of books and tell Xiao Man a lot of tips to become bigger, it is a big deal to operate.

theory and practice,

It's not the same!

"STM has two modes of operation, current constant mode and constant height mode, in general, the current constant mode is used, this mode of operation acquires comprehensive image information, and the microscopic image quality is high. ”

"Of course... The constant height mode also features a microscopic image that acquires a microscopic image through a tunnel current without the need for a light source and lens. ”

After a pause,

In addition to scanning, STM can be used to find defects and damage on various structures on the surface, and use surface deposition and etching methods to establish or cut the connection to eliminate defects and achieve the purpose of repair, that is, flaw detection and repair." ”

Xu Mang nodded again and again, at this time, he had already turned on the memory mode, memorized everything that Matley said in his mind, and copied the basic parameters on the manual by the way.

"Professor Mattley?"

"Where did you buy this device?" Xu Mang asked, "It seems... It looks like it was made by yourself. ”

"Yes!"

"We provided the drawings, and the engineering school built them for us. "This STM has one of the highest resolutions in the world, has won the Best Innovation Award, and has helped many Nobel laureates experiment." ”

“...”

"Awesome!"

Xu Mang was suddenly envious, looking at this unsightly iron bump, he instantly moved his crooked brain.

Copy!

Make a complete copy of the world's most powerful microscopy tool, and then bring it back and make it yourself, so as to avoid being blocked by others in this regard.

"Huh?"

"Is this part shock-absorbing?" asked Xu Mang.

"Yes!"

"Because the working distance is less than one nanometer, and the tunnel current is exponentially related to the tunnel gap, any vibration will have an unstable effect, and the vibration and shock must be isolated, and the vibration must be isolated!" said Mattley. ”

Xu Mang showed a smile and nodded at Mattli: "I understand." ”

In fact

At this time, Xu Mang probably guessed how to absorb the shock, relying on the spring itself can not do it, it is estimated that the frequency of the external vibration and the natural frequency of the instrument are cut in, and the frequency of the two is coordinated to a value.

After all

It's easy to do with a computer.

Followed by

Xu Mang asked a lot of questions, and Professor Mattley only talked about the general content, and some of them reserved Xu Mang, but in many cases, Xu Mang was able to guess everything, and very few people didn't know at all.

This function parameter setting... Mattley is in complete secrecy.

In this regard,

Xu Mang could only reluctantly choose to accept, although there must be a scanning tunneling microscope in China, but the resolution is not as high as this, so in terms of studying atoms, compared with foreign countries, it is in a weak position.

Back in Mattley's office, Xu Mang chatted with her for a while, and then noticed the process of arithmetic on the blackboard.

"Professor Mattle, this is researching... The single resonance model studies the properties of dielectric dispersion, right?" asked Xu Mang with a smile.

After hearing Xu Mang's words, Matlie's face changed slightly, and she nodded: "This is indeed this problem, I didn't expect that Professor Xu also knows a lot about electromagnetism and electrodynamics!"

"It's okay..."

"It seems that the calculation process is stuck, isn't it?" Xu Mang said: "It's normal to be stuck here." ”

“...”

Matlie didn't speak, and she suddenly realized that the person sitting in front of her was not an ordinary person, but a man who had used mathematics to the extreme.

maybe

The problems he encountered were not a problem at all in Professor Xu's eyes.

After all, the essence of the problem can be discovered at a glance, which is not something that anyone can do.

"Professor Xu..."

"Can you help me with that?" Professor Matley's attitude became a little respectful.

"Yes!"

"It's not that hard, at least not for me. Xu Mang smiled and said, "But... I'd like to know the STM parameter settings, of course I'm just looking at it to get a rough idea. ”

Matthew pondered for a long time, usually refusal, but the person sitting opposite was not an ordinary person, and he could not be treated with ordinary circumstances.

"Good!"

Words fall,

Matley took out a notepad, handed it to Xu Mang, and said seriously: "This is the specific parameter setting." ”

Xu Mang smiled and said thank you.

"The system... Turn on memory mode!"

【Memory Mode Activation】

"The system... Turn on Beast Mode!"

【Beast Mode Activation】

afterwards

Xu Mang frantically flipped through the above parameter settings, not to mention... It's really detailed inside.

After seeing Xu Mang's speed, Matli was completely relieved, it was really just a casual flip, if this speed could be remembered all, then this world was too dangerous.

In less than ten minutes,

Xu Mang handed the notepad back to Matlie and said with a grateful face, "Thank you..."

"No, no, no!"

Professor Xu was polite. Matley laughed.

"Hehe..."

"That's as a return... I've solved the problem you've encountered, and by the way, I'll send it to you. Xu Mang said seriously: "Do you have paper and pen?"

"Give!"

moment

In front of Matlie, Xu Mang began to solve the problem she was experiencing.

It's fast,

It was so fast that Professor Mattley's face was full of horror.

This...

How can this be so fast?

Really?

At this moment,

Professor Mattley began to wonder about life, the first time she had encountered such a situation, it was so fast that it was impossible to look at it directly, how could it be correct at such a speed?

You can't be lying to me, right?

Boom,

It's going on...

Xu Mang quickly solved the problem encountered by Professor Mattley in the calculation, in fact, this problem is not very difficult, its difficulty lies in the split of a long formula, which needs to be cleverly split into four sections, otherwise it will not be able to solve it in this life.

Untie...

Solved?

It's only been a few minutes!

Matlie saw that one of her problems seemed to have been solved, but Xu Mang didn't stop writing.

soon

After another ten minutes, Xu Mang silently put down the pen in his hand, picked up a dozen or so blank papers, and said with a smile: "No... People are old, and they used to be fine for an hour, but now they are less than twenty minutes, and they are directly tired enough. ”

"Good!"

"It's all settled. Xu Mang handed the blank paper full of the process to Professor Matlie and said, "I'm leaving..."

Words fall,

Xu Mang left the office directly, leaving Matli with a bewildered face.

I...

It's too... Too neat, right?

Xu Mang's operation made Professor Matlie completely confused, she began to doubt the world, doubting whether aliens exist, this problem was thought about for a day, and others solved it in a few minutes, and by the way, the next piece was solved.

Saying

Right?

That's what Matlie cares about.

subsequently

Professor Matley sat in his office and began to read Xu Mang's process, looking at it and feeling a trace of fear, it turned out that... The solution to the problem you have encountered is so simple?!

But...

Matlie knows that behind the seemingly simple, it is actually the crystallization of many painstaking efforts, and only people like Professor Xu will find it simple.

Five minutes later,

Matlie plans to share this process with her two colleagues and experience the top strength in the industry together.

...

"Mattley?"

"Aren't you solving the problem of the properties of the dispersion of the medium?" Dean, seeing Matlie coming, asked curiously, "Why did you suddenly come to me?"

"I..."

Professor Matlie glanced at Dean and Bill, and said seriously, "That problem of mine has been solved..."

“？？？”

“？？？”

Untie...

Solved?

Dean and Bill knew what kind of problem Matlie was facing, it was a mathematical problem, and Matlie wasn't very good at math unless he was approached by a professor in the math department, but... She doesn't seem to get along with the people in the math department.

Followed by

Mattley took out a dozen pieces of blank paper, handed them to Dean, and said, "Bill, come and have a look!"

In just a few minutes,

Dean and Bill looked at Matlie in horror.

"Mattley?"

"You... You compromised with the math department?"

At this point,

Professor Matlie smiled and said firmly, "No... These calculations are from a professor of theoretical physics!"

......