Initially

Xu Mang didn't want to deal with these adults, and he didn't want to help them solve any problems, after all, the fees were quite expensive, and Americans might not give money, but the eyes that were looking forward to seeing the joke made Xu Mang feel deeply angry.

"Isn't it difficult?"

"Professor Xu Mang seems... Looking very confident?" When the middle-aged man heard Xu Mang's words, he couldn't help but smile and said indifferently, "Then look forward to your performance." ”

As soon as the voice fell,

Everyone present began to discuss, and everyone put forward their own opinions on Xu Mang's promise to test the interval value of the proton radius, among which Professor Smith was one of the few supporters, and he believed that Xu Mang could solve it.

"Professor Henry?"

"Do you think Xu Mang can solve it?" asked Professor Henry.

"Resolved?"

"The mystery of the proton radius?" Henry Mirren said indifferently with a look of disdain, "Professor Smith... I know that Xu Mang is a member of your Princeton Astrophysical Society, but you can't blindly trust him because of this relationship, right?"

Professor Smith smiled: "How about a bet between us? If Xu Mang's final calculated value is infinitely close to the number of your experiment, can the Physics Society provide us with a huge amount of research funding next year?"

"Yes!"

"No problem!" Henry Mirren nodded and said seriously, "If you can't reach it, then what can you do?"

"The Princeton Astrophysics Repository, a pro bono service to members of the Physical Society. Smith said seriously, "Is Professor Henry okay?"

"Pretty good. ”

Henry Mirren laughed, "Then we're going to win." ”

“...”

In the face of the confident Henry Mirren, Professor Smith was a little helpless, one was blindly believing in Xu Mang, and the other was blindly denying Xu Mang, but each had its own statement, first admitting that there was an unsolvable problem in the calculation of the proton radius mystery, but when the solver was Xu Mang, the problem needed to be put in quotation marks.

At this point,

Xu Mang was eating the apple pie on the plate, in fact, he wanted to eat the apple pie in McDonald's, but it turned out that the pie was really delivered here, round... One by one, no wonder some people regard apple pie as a staple food, this one is already completely full.

"Professor Xu Mang..."

"How can you agree to such a thing?" Cui Yue frowned, feeling helpless about what was about to happen, this obviously knew that it was a trap, but Xu Mang jumped into it himself, didn't he deliberately make a joke?

"Is there any problem?" Xu Mang asked curiously, "It's really not difficult!"

“...”

"Professor Xu Mang... This is a question that the Americans are deliberately trying to squeeze you, how can it not be difficult?" Cui Yue smiled bitterly: "Forget it... So far, I can't say anything, anyway, you can do it yourself, I can't help you in this kind of thing. ”

"Oh. ”

"Don't be nervous... It's really not that hard. Xu Mang smiled and silently cut the apple pie on the plate.

Ten minutes later,

Xu Mang completely put this pie into his stomach, and sat on the chair with a satisfied face, he had eaten a lot for dinner, two filet mignons, an apple pie, a turkey leg, and a bowl of vegetable and fruit salad, which had almost been ordered to his throat.

"Professor Xu Mang?"

"Are you almost ready to start?" the middle-aged man was a little impatient.

"What's the beginning?"

"I just finished eating, why do I have to take a break?" Xu Mang said angrily: "What's the hurry? Who dares to urge me again, be careful that I have to add money! I can do anything." ”

“...”

“...”

“...”

Not only the Americans were stunned, but even the members of the Chinese delegation were shocked. Standing on the land of America and laughing at Americans in front of them, this kind of thing can be done by Professor Xu Mang.

That kind of middle-aged man's face swelled into pig liver, but he didn't dare to refute anything, just as Xu Mang said, he could do anything.

"Professor Xu?"

"You... Do you really have no questions?" a young member of the delegation who was sitting next to him asked cautiously: "I just searched the Internet for relevant content and found that... It was found that the proton radius was getting smaller all the time. ”

"Regarding the radius value of the proton, it has been constantly overturned by others, and then a new value is re-established, Professor Xu Mang... Even if you provide a value, I think it will be overturned by someone else in the future. The young man said.

"Overthrow?"

"Isn't it normal to overthrow?" Xu Mang didn't think so, and said calmly: "Being able to overturn the theories of predecessors shows that science is constantly improving, what's wrong with this? I'm not invincible..."

Xu Mang is not worried about the future, but sees more openly, he hopes that others will overturn some of his theories, and only by constantly pushing down and re-establishing will he reach the end of science.

"I'm sorry... Ladies and gentlemen"

"Excuse me. ”

Words fall,

Xu Mang left the scene straight and went to the bathroom.

Standing in the bathroom, there was a sign prohibiting smoking on the side, but Xu Mang didn't care whether it was forbidden or not, he needed a cigarette to help him sort out his thoughts about the proton problem.

the mystery of proton radius,

How can this be solved?

"Hello?"

"Wife... Is there something wrong with me?" Xu Mang sat on the toilet and asked with a smile: "We just had a video call, and you miss me again so soon?" International calls are quite expensive, and I have a poor few. ”

"Humph!"

"Don't be sentimental, I'm too lazy to think about you. Yang Xiaoman said angrily: "The tickets are out of order... The day after tomorrow at noon, damn it... Did you already know that there would be no tickets tomorrow?"

"Hey, hey, hey. ”

"Then I'll hang up first. ”

Xu Mang hung up the phone directly, not to mention... After talking to Xiaoman on the phone, he was a lot more relaxed.

Back in the hall, Xu Mang did not sit in his place, but came to the edge of a few blackboards, looking at the content on them, and really couldn't find any solution for a while.

Are you going to get started?

Then

Everyone's eyes were on Xu Mang, looking forward to what would happen next.

proton

The above content is all about using particle beams hitting atoms to record how particles are scattered by atomic nuclei, which doesn't seem to be useful at all... There is no room for maneuvering, so do we need to re-use it in another way?

In today's world, there are ways to measure the size of protons, the first is the impact of particle beams, and the second is based on the movement of electrons around the nucleus, since certain electron orbitals pass through the protons in the nucleus, the size of the proton affects the strength of the bond between the electron and the nucleus.

By using spectroscopy to accurately measure the differences between the energy levels of each electron, the radius of the proton can be estimated.

Pity...

Even the second way was blocked, and the US side did not provide relevant data.

"Ugh..."

"It's a little difficult!" Xu Mang sighed, remembering the system in despair.

"The system... What is the exchange value of the proton radius by purely mathematical calculations?"

[Recognized by the system, the exchange value of the proton radius is calculated: 10000 (Physical Skill)]

[Recognized by the system, the exchange value of the proton radius is calculated: 30000 (math skill)]

Oh?

It seems that a mathematical gadget exists.

Xu Mang found that the consumption of mathematical skills is more than that of physical skills, and there should be something in mathematics that he does not know, and the value is only 30,000, perhaps an extension of a certain formula.

Pay!

Silently picking up the chalk on the side, Xu Mang began his own calculation process.

unhappy

He wanted to take his time, to slowly conquer everyone present.

meanwhile

When Xu Mang picked up the pen, many people showed a trace of horror, he... He can actually calculate the proton radius? No kidding, right? Isn't it impossible? Why is he... Can he do it?

Most of the people in the American delegation knew the situation behind the problem, which was a problem that could not be calculated by numbers, and that it had to be experimental, and even the most prominent theoretical physicists in the United States believed that it was impossible to calculate the radius with these data.

Of course

Many mathematicians believe that numbers can solve all problems.

"Huh?"

"It's so strange!" The middle-aged man who proposed the mystery of the proton radius, after seeing Xu Mang's first equation, showed a confused expression, and asked his companion curiously: "He... What is he doing here?"

"I don't know. ”

"Totally unintelligible. The man next to him frowned and said with the same confused expression, "He seems... What is being proven. ”

With the advent of the second equation,

More questions revolve around the minds of the crowd, they have no idea what Xu Mang is doing, what he has done has subverted the understanding of physics present, it seems... Rely entirely on mathematical logic to solve physical problems.

"Professor Smith..."

"Have you been in such a situation?" asked Henry Mirren, "how do I feel... Xu Mang gave up on cutting from a physical point of view, and instead... Alternative Choices is mathematically in solving a proton radius problem. ”

"Hmm!"

"I also discovered... But so what?" said Professor Smith indifferently.

"He..."

"What the hell is he doing?" said Henry Mirren, lost in thought.

Xu Mang did not stop the movements of his hands because of the discussion behind him, but his speed increased slightly.

But only five minutes later, the originally smooth calculation suddenly stopped, and Xu Mang stood in front of the blackboard, staring at the content on it in a daze.

“？？？”

“？？？”

“？？？”

What's the situation?

How did he suddenly stop calculating?

Is it over?

Many people present were curious about this, but judging from the content, it didn't look like the calculation had been completed at all.

"Professor Xu Mang?"

"Is it done?" the middle-aged man asked.

"It's coming!"

"You're going to see a miracle happen right away!"

......