A Man of Science and Engineering in Troubled Times Wandering in the Late Qing Dynasty

Chapter 170 Take Out Quantum Mechanics Killer

After Li Yu finished teaching Guangxu, Xiao De Zhang was waiting for him.

"Mr. Emperor, you have finished class." Xiao Dezhang said respectfully.

Li Yu asked in surprise, "Are you waiting for me?"

"That's right," Xiao Dezhang said, "The miscellaneous family also want to listen to the teachings of the emperor."

Since teaching Guangxu, Xiao Dezhang has also become more respectful to Li Yu.

However, Li Yu did not believe that Xiao Dezhang really wanted to learn scientific knowledge. He remembered the last time he repaired the gramophone in Cixi, thinking that he had found himself because of that, so he said: "At that time, I didn't know who was in charge of cleaning. So it’s just telling the truth about the damage.”

Xiao Dezhang hurriedly said: "Why does the emperor still remember such trivial things?"

Li Yu said, "Isn't that father-in-law one of yours?"

Xiao De Zhang wrote lightly: "Yes, but there are too many people brought into the palace by miscellaneous families, and it is not easy for one out of ten to be in their early years. Besides, there will be more tests in the future in the palace, and such mistakes can be made. It's useless."

Li Yu asked: "That little eunuch now..."

Xiao De Zhang said casually: "I guess he won't be able to get out of bed in this life, who told him that he can't even clean the Queen Mother Lafayette's place well."

This kind of little eunuch is indeed insignificant to Xiao De Zhang, and if he offends the Queen Mother, Xiao De Zhang will never protect him.

The eunuch group itself cannot be judged by common sense. All kinds of contempt, suppression, and struggle are probably the most serious in the palace.Xiao Dezhang is probably used to it.

Besides, Xiao Dezhang also suffered a lot at the beginning. After his father died, the family had a very difficult life.When he was 12 years old, he went to a relative's house to pay New Year's greetings during the Spring Festival. He saw a magnificent carriage there and couldn't help admiring it.Then the cousin on the side heard it and said mockingly: "Your family will never be able to afford such a big car for the rest of your life."

Unexpectedly, Xiao De Zhang, whose self-esteem was seriously stabbed, found out that entering the palace as a servant was a shortcut to making a fortune when he got home, so he gritted his teeth and left the palace.

But it doesn't mean that he can enter the palace after he is born in the palace. He worked in a banner family for three years, and only when a eunuch died in the palace did he fill in the vacancy.

At the beginning, he was assigned to a tea house. The master was an old eunuch called "Haha Li" in the palace, and he beat and scolded the young eunuch frequently.

Xiao Dezhang later recalled that he was beaten more than 2000 times in a few months.

Then Xiao Dezhang entered the Nanfu Opera Troupe.

The Nanfu Opera Troupe not only invited famous Peking opera actors from outside to sing, such as Tan Peisheng and Yang Xiaolou, but also trained young eunuchs to go on stage.

However, the Nanfu Opera Troupe punished the young eunuch very harshly. After all, they were singing for the Queen Mother, so they dared not make any mistakes.These young eunuchs were also monks halfway through their lives, and their basic skills were not comparable to those of famous Beijing opera actors who were "graduated from a professional class", so the training was very strict.

Many young eunuchs were punished here with minor punishments ranging from disability to death.

In fact, "Haha Li" was also a bit malicious, and wanted to kill Xiao Dezhang before sending him to the Nanfu Opera Troupe. Unexpectedly, Xiao Dezhang would reach the pinnacle of his life because of this.

After all, a person who can wield a knife from the palace is really terrifying.

Within a few years, Xiao Dezhang was appreciated by Cixi, and he quickly made his way to the top and got mixed up in the circle of eunuchs.

Li Yu didn't like to ask too much about the affairs of the palace. Anyway, he had heard more or less that intrigue in the palace was terrible, and sometimes he just wanted to kill others before giving up.

So he stopped mentioning that matter and instead asked, "What is your father-in-law looking for?"

Xiaode Zhang smiled and said: "I heard that you know Western learning best! To be honest, Zajia once went out of the palace and saw the buildings of foreigners in Dongjiaomin Lane. It looked really beautiful. Zajia, I like to draw pictures and design houses when I am free. , I just want to ask sir to help find some classics in this area, I don’t know if I can do it?”

"Architectural design?" Li Yu asked in surprise.

Xiao Dezhang said, "So it's called that."

Li Yu really didn't expect Xiao Dezhang to have such a hobby. He was somewhat surprised, but there was no reason to refuse him, so he could only say, "I'll buy some for you later."

Xiao Dezhang said, "Also, I heard that the pens and paper used by foreigners for drawing are different, or they should be the same..."

Li Yu also studied descriptive geometry in his undergraduate mechanical design. Although he didn't understand architectural design, he still knew how to draw.

"Okay, put it on me."

Xiao Dezhang said gratefully: "Thank you, Master! Miscellaneous family must thank you very much!"

In fact, Li Yu could see that Xiao Dezhang was trying to get close, so let him go.

After returning home, Li Yu received news that 3.8 kroner had been remitted from Sweden, which was the royalties for the second edition of "Fractal and Chaos", which was equivalent to about 5300 taels of silver, and there were more than 4800 taels left after deducting the handling fee.

Sales seem to be good, and more than half of the [-] copies have been sold.

Li Yu thought about the possible expenses of going to the United States, so for convenience, he deposited all the money in the bank.

After that, I played a few games with Fan Xiren, Feng Zuxun, and He Yujie in the Imperial University Hall, and taught them some rules of football.

Fan Xiren loves to play. Not only did he become addicted to the previous board games, but now playing football is even more enjoyable.

"I didn't expect you to be so good at playing!" Fan Xiren said.

Li Yu said with a smile: "It's a combination of work and rest, you practice hard, and when I come back from the United States, let's form a school football team."

Fan Xiren was very interested: "No problem! I will definitely take them to practice hard!"

Knowing that Li Yu was going to the United States, Ding Weiliang also found him. After all, he was from his hometown, and asked, "I heard that you are going to the United States this time, and you still have a mission?"

Li Yu said: "I'm just making up the number of people. Anyway, there is Mr. Liang Cheng in diplomacy."

Martin said: "If it's just about education, the great American president will surely not stop it."

Americans are already very proud now, but there is nothing to say, they also have the capital to be proud now.

"I hope," Li Yu said, "although in the future..."

Watching Li Yu pause, Ding Weiliang continued, "There will definitely be more schools popping up in the future."

Li Yu said along, "Of course."

Li Yu took the time to organize the chemistry lecture notes and sent them to Zhang Yuanji in Shanghai.

Within a few days, Liang Cheng found him.

Historically, it was indeed around this time that Liang Cheng left for the United States to serve as the ambassador to the United States.

Regardless of whether it is now or in the future, the ambassador to the United States is a key position. Fortunately, the Qing court chose very well this time.

It is very fast to take a ship from Tianjin Port to the west coast of the United States. It only takes about three weeks to pass through Japan and follow the northern route.

Then take the train to the east coast, which is the fastest route, much faster than going to Europe by boat.

Li Yu has been thinking about what kind of paper he should write to submit to the UK, and this time Li Yu also paid more attention to it.

His best fields, physics and astronomy, have relatively good directions.Li Yu had some content in his mind, including both theoretical physics and astrophysics.

Theoretical physics is of course suitable for writing on board.

Li Yu felt that it was time to come up with a big move and directly write about quantum mechanics, which he is best at.

I have been in this world for more than a year, and now I have a certain scientific status, and it is almost brewing.

As a latecomer, Li Yu knew very well what the basis of quantum mechanics is.

——To put it simply, of course it is the concept of "quantum" itself.

Although this sentence sounds a bit redundant, the concept is really subversive.

This can reflect the biggest difference between mathematics and physics:

Mathematics is purely abstract, but physics must follow and correctly explain the laws of nature.

Mathematically, there can be infinite latitude, and there can also be infinitely small.

But in physics, or the actual nature, it is impossible to subdivide anything infinitely, and everything has the smallest unit.

Even including time, there is a smallest unit.

In other words, there is a so-called "maximum resolution" in this world, which cannot be infinitely detailed.

Quantum mechanics also emphasizes that energy is "individuals".

Anyway, no matter what it is, it is an integer multiple of the smallest unit.

In fact, as long as "integer multiples" and "one by one" are mentioned, it will be a bit like quantum mechanics.

But it is still the "prehistoric stage" of quantum mechanics. Even though the great god Planck deduced the correct formula for black body radiation in the "two dark clouds" three years ago, it is a pity that he made up the formula...

In other words, although the result is right, the process is wrong.

This is very uncomfortable!Because it's hard to be convinced.

Let me briefly talk about the problem of black body radiation: At that time, physicists had already obtained an experimental curve of black body radiation phenomenon based on experimental phenomena, so the task is actually to explain why this curve looks like this, and it is best to have a formula.

Planck's formula is derived from this curve, and the formula is very consistent with the test image.However, as mentioned above, the derivation process is wrong, and everyone does not agree.

In addition, the German physicist Wien deduced a Wien formula using thermodynamic theory in 1896, but this formula can only explain the high-frequency stage, and it does not fit well in the low-frequency stage.

Even so, because of such an incorrect formula, this guy also won the Nobel Prize in 1911...

Later, Baron Rayleigh deduced a Rayleigh formula that only fits at low frequencies, which is not perfect.And this theory was later used by many science fiction novels to explain the so-called ultraviolet weapon: because the frequency of ultraviolet light is high, according to Rayleigh's formula, when the frequency is high, the energy radiation of the black body will tend to infinity.

This is obviously unreasonable.

As a professional in physics, Li Yu can easily deduce the black body radiation formula with ease.

In fact, in history, this matter was made by the Indian physicist Bose later, but Bose did not do it right in the derivation process, and there were also obvious mistakes.

In short, Li Yu knows that once the correct black body radiation formula is derived, it will definitely be at the level of a nuclear bomb. No, there is no nuclear bomb yet, and it will be at the level of an earthquake!

It's too early to say, at least the Nobel Prize in 1911 was definitely won by Li Yu and Planck.

So it's really bursting.

After all, he is one of two dark clouds!
Li Yu was in the room, spread out the manuscript paper, and began to calculate with concentration.

He was so familiar with the process that he didn't even shake his hands when he wrote it.

The thesis is not particularly long, the key point is that he does not need to write too long.

Li Yu's mathematics and physics are all up to standard, and there can be no mistakes.

After the ship arrived in San Francisco, that is, San Francisco, Li Yu immediately found the post office and sent the paper to the Royal Society of Science.

Fortunately, the U.S. Post Office also accepts dollars, otherwise you have to go to the bank to exchange dollars.

Liang Cheng saw the letter sent by Li Yu and said, "Seeing that you have been counting things on the boat, it turns out that you wrote another scientific paper."

Li Yu said: "Idle is idle, why not do something."

Liang Cheng asked, "Another extraordinary thing?"

Li Yu smiled: "Just wait and see."

(End of this chapter)