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

Chapter 385 Happy Day

Snowflakes have already fallen in Switzerland, and the train from east to west just passes by the foot of the Alps, and the scenery is still good.

There are very few plains in Switzerland, only five or six percent, and the rest are mountains. This is one of the reasons why Switzerland was able to survive World War II. After all, no one believes that the status of a neutral country is really useful.

Belgium was also a neutral country in World War I, so it can be fought as it should.

Moreover, Switzerland was not completely neutral even during World War II. The financial system has always helped Germany, and some domestic road tunnels were also used by Germany.

On the train, Li Yu looked at the Xuande stove in front of him, and he was sure it was genuine, because the royal family couldn't collect fakes.

The appearance is also very good, and it will definitely be the kind that starts at millions of dollars in future generations.

Xuande Furnace is so famous that many imitations were produced in the late Qing Dynasty and the Republic of China.

Li Yu said: "The ancients said that Hongxiu Tianxiang reads at night, so that's what it is."

"Don't be shy, who do you want to add incense to?" Lu Bicheng said, "And you are willing to use such a good stove?"

"I must be reluctant," Li Yu put it away carefully, and sighed, "Hey, sometimes things are too good to be a kind of distress, just like a vase, and I dare not use it lightly."

-

Einstein was working, to be precise, fishing while working, and now his brain was almost running out, and several papers were crowded in front of him.

Thinking in physics has exhausted the brain, and there is also the mountain of mathematics.

Simple physics is not very difficult, the main thing is to have very advanced physics thinking.

What really makes physics difficult is mathematics.

Those who have participated in the college entrance examination can realize that the force analysis of big physics problems can often be done, but the complicated mathematical calculations can really stump you.

(You can experience the Shandong physics volume with ceiling difficulty, the calculation is so much that the scalp is numb.)
The staff of the Patent Office received Li Yu, and Li Yu directly asked to see Einstein by name, and the reception staff asked Li Yu to wait here.

After a while, Einstein, wearing the iconic chicken nest head, came out in a hurry. His eye circles were a little dark, and he seemed to have not slept well.

"Oh! It turned out to be Mr. Li Yu. I didn't expect you to come to Switzerland again. What's the matter with you this time?" Einstein asked.

Li Yu pointed to a pile of documents in his hand: "Of course there is business."

Einstein hurriedly asked: "Is it the Minkowski space or the Lorentz transformation, or the Navier-Stokes equation for fluids?"

It can be seen that his mind is full of researching his thesis now, and all he speaks are complex mathematics.

Li Yu smiled and said, "Neither of them! I just want to talk to you about the work here."

"Oh……"

This "oh" was obviously not as exciting as the previous one, but Einstein immediately remembered that he was still at work, which was not good, and hurriedly said, "Are you going to apply for a patent?"

"Of course, I'm here to support your work." Li Yu still said with a smile.

"No problem," Einstein pointed in, "please come to my desk."

Sitting at his desk, Einstein flipped through Li Yu's patent documents, and he was attracted by the first one: "What is this? A car... a horn?!"

Li Yu nodded: "And it's an electric horn."

In 1899, France was the first to enact regulations requiring cars to be equipped with sirens.But the early horns were not controlled by electric current, but traditionally made sound through air flowing through the pipeline, just like traditional wind instruments.

In general, a soft airbag is connected to a curved pipeline, and the airbag is squeezed by hand to make the air flow quickly pass through the pipeline and make a resonant sound.Then the sound is amplified through the sound amplification design at the end. The principle is basically the same as that of French horns and other instruments.

I remember an episode of "Tom and Jerry" - it should be the most tragic episode - called "Sad Cat". He knows that there is another super rich black cat who also pursues the beautiful white cat.

When Tom brought out a flower, the black cat sent a big bouquet; Tom gave the white cat a small bottle of perfume, and the black cat drove a truckload of perfume; Tom bought a pocket diamond ring, but the black cat gave a huge diamond ring .

Finally, Tom bought a second-hand car with 312 monthly installments and 112% annual interest. This car was the first car invented by Karl Benz. When Tom drove the dilapidated car to the white cat , and pinched the horn of the airflow principle.

Um, later, the black cat drove a stretched luxury car and ran over it.

Love really breaks a cat's heart...

This kind of horn is definitely not easy to use. The early cars were cumbersome to operate, and the steering wheel had no power, so it was difficult to control the direction.

Einstein saw at a glance that Li Yu's electric horn was an excellent solution, and said happily, "Oh my God, it's a genius design! We just reviewed and approved a plan yesterday. Although it is a bit more advanced than the airbag horn, it is not Get rid of airflow restrictions."

Einstein rummaged through his cluttered desk and pulled out another patent document for a car horn, which produced sound through the airflow blown by the exhaust of a car.Divide the automobile exhaust pipe into two pipelines, and design a manual valve in the middle of one of the pipelines.When the valve is opened, the exhaust will flow through the pipe of the horn, making the sound.

This solution not only adds a long pipeline, but also blows out exhaust gas, so it is not very popular.

After the appearance of the electric horn, it can be called a dimensionality reduction blow, and the two are not rivals of the same level at all.The electric-driven horn uses a metal vibrating plate to drive the diaphragm to produce sound. Both the loudness of the sound and the response speed of the horn are greatly improved compared with the traditional pneumatic horn.

Li Yu said with a smile: "I still have a few patents, I hope I can use this to make you an official patent office employee."

The patent office where Einstein worked also had KPI indicators, and only those who completed well could be promoted.

Li Yu put out several patent documents again, including a new type of mechanical transmission structure and better shifting components.

In addition, Li Yu also took over some patents applied for in the United States, such as seat belts.

These things belong to mechanics, and the structure, especially the mechanical structure of the seat belt, is very ingenious.

It looks like a simple belt on the outside, but the mechanical structure of the seat belt is really original. The ingenious locking structure cooperates with each other, making it very much like a beautiful industrial artwork, and it is more worthy of the "safety" in the name. "Two words.

Unlike the United States, European racing culture was more prevalent at this time, and there was more interest in seat belts.

Einstein immediately sat down to review one by one.

Li Yu was sitting next to him in his spare time. He saw the calculation manuscript paper hidden in the corner of the table, which was densely packed with derivations and calculations, which was obviously not the job content of the Patent Office.

Since Li Yu was far ahead of the current era in terms of machinery, the blueprints he drew were extremely clear and reliable, and the physical and mechanical principles he used were accurate. Einstein quickly stamped his own blue stamp and took it to the director. final judgment.

When he saw Li Yu's name on the patent application, the director had almost made a judgment, but he still went through the review according to the procedure.

Not long after, it was signed and sealed.

Einstein was so happy that he came to Li Yu with the documents: "It's all passed! It's just that we still need a batch of trial production for specific use."

Li Yu didn't expect Switzerland's efficiency to be so much faster than Lao Mei's. It's probably because they really want to leave such a good patent document. Even if there are some problems, they can continue to let Li Yu improve.

Li Yu said, "That's great, I thought I'd have to wait two more days."

"To be honest, if the verification is successful, I can be promoted to a full-time employee immediately." Einstein couldn't hide his joy.

The official third-level clerk's income can increase to more than 1000 US dollars. At this time, the annual salary of a professor assistant is only [-] to [-] US dollars.

This is an out-and-out good news for Einstein, "Dear Mr. Li Yu, you are my lucky star! If Mileva finds out, she must be very happy! With money, we can buy more Good furniture, even for a vacation."

"Don't rush to be happy," Li Yu said with a smile, "This time, I still want to work with you to perfect the paper on special relativity."

"Narrow sense?!" Einstein slapped his head. "It's a great vocabulary, but it's already making my brain explode."

Li Yu naturally knew that it was mathematics rather than physics that troubled him, "So I volunteered to help you as a little assistant."

Einstein said, "I'm sorry to have you as an assistant."

"You're welcome," Li Yu waved his hand, "After you're done, just invite me to go skiing for a vacation."

Einstein brought Li Yu to his home. This was Li Yu's second visit. He had just entered to say hello to Mileva when he was dragged by Einstein to the study on the second floor.

Only Lu Bicheng and Jinwei Zhaoxue were left standing in the living room.

Seeing that there was one more beautiful girl than last time, Mileva was a little overwhelmed and didn't dare to ask more questions, but said: "Two ladies, please sit down, I'll make coffee for you."

Einstein is not well-known now, otherwise Konoe Zhaoyuki, as a spy, would definitely pay more attention to Einstein's achievements, although he may not be able to understand them.

The physical part of the theory of relativity was basically completed by Einstein independently, but he asked many people for help in the mathematical proof of it.

Although Li Yu is not as good as a professional mathematician in mathematics, he still has a good understanding of mathematics in physics, which is an essential skill for future generations of physics majors.

It took only seven or eight hours for Li Yu to perfect it completely.

Einstein was very excited: "This has reached the point of publication. Today is really the happiest day I have spent in this year!"

It was already early morning, and Li Yu and Einstein ate a piece of bread that Mileva left on the table together, "Can I go skiing tomorrow?"

"It must be possible!" Einstein said excitedly.

(End of this chapter)