The drama on stage was well acted.
Kang Youwei in the audience was amazed: "Western drama and dance can be said to have sprouted (started) in China. There are many similarities between the two in body language and customs. Therefore, I think we should call on domestic drama and dance to learn from Westerners." "
Li Yu was a little irritated by these words of worshiping foreigners, but before he could refute, Bernard Shaw objected first: "Mr. Kang, actually I want to say that your country's operas are more expressive and have many merits. After all, dance comes from life and from the local area. China and the West can communicate, and if we talk about learning, we should say learning from each other."
After the performance, before leaving, Oxford Vice-Chancellor Bruce gave each of Kang Youwei and Li Yu a commemorative pocket watch.
The pocket watch was of high quality at first glance, and the price was much higher than what Li Yu had bought in Sweden before.
Things made in Europe are indeed remarkable in terms of exquisiteness.
Kang Youwei praised: "The British utensils are exquisite, but the domestic utensils are much more humble. They are not as good as they used to be, and they are not as good as they used to be!"
George Bernard Shaw wondered: "Nowadays, many of the best luxury goods in Europe are made of porcelain, tea and silk from China. How can they not be exquisite?"
Kang Youwei said: "If it is the utensils of the Tang, Song and Ming dynasties, there are many exquisite ones. However, it is difficult to find them in the Qing Dynasty. Just like the actors on the stage, many scholar-bureaucrats in the late Ming Dynasty could cultivate excellent actors and actresses, but now, they can still Seeing a scholar-official family with an actor? To use a word I learned recently, there is a huge gap between the rich and the poor."
Unexpectedly, he also read Marx and mentioned the "gap between rich and poor". Li Yu thought that he could extend his thinking like Liang Qichao. Unexpectedly, Kang Youwei went on to say: "Exquisite utensils must consume countless unnecessary resources to make them." . After it is completed, there must be wealthy people with good intentions who love to play and spend a lot of money to buy it, so that the manufacturer can benefit and continue to fight for it. But now that the country is so poor, how can we create exquisite things again?"
Li Yu almost stumbled. This guy directly confused luxury goods with industrial products.
Luxury goods are indeed toys for the rich, but he may not have been to the palace a few times, and he doesn't know that any country actually has many exquisite artifacts. Later generations of African chiefs could drive Rolls-Royce. There are countless good things in the Forbidden City.
Li Yu reminded: "Mr. Nanhai, you really should read some science and technology books, even popular science articles. It would be really bad if you say the wrong thing in this situation."
Kang Youwei snorted: "The light of rat eyes does not understand the truth."
Luo Chang pulled Kang Youwei and whispered: "Nowadays, the whole of Europe and the United States highly respects Li Yu. Master, it's better not to say that about him."
Kang Youwei's expression changed a little, but he quickly calmed down and said: "He just wants to suppress me in terms of reputation, so that he can secure his title of 'Emperor Master', and then use small businesses to make ill-gotten gains. Have you forgotten that Weng Tonghe and Did Li Zhongtang fight?"
Luo Chang opened his mouth, not daring to continue speaking.
However, Kang Youwei also understood that he would not be able to debate Li Yu in a Western university, so he said to Luo Chang and his daughter Kang Tongbi: "Let's go, we have to go to European countries to study and travel."
Li Yu was speechless. Kang Youwei still looked down upon industry and commerce, but he didn't think there was anything wrong with raising donations.
What brain circuit.
Li Yu needs to continue returning to Cambridge, and Rutherford has already prepared the electroscope.
Then Li Yu and Owen Richardson conducted a lift test in a hot air balloon and recorded changes in different altitudes.
The starting altitude is relatively low, and within one thousand meters from the ground, the amount of radiation is indeed getting smaller and smaller.
Lu Bicheng was so enthusiastic that she even wanted to go to the sky together to see it. She also thought it was fun to ride in a hot air balloon.
Seeing that he had preliminary experimental data, Li Yu went to Thomson, the director of the Cavendish Laboratory, and asked for someone again: "Mr. Director, may I ask if Professor Wilson from your school is available recently?"
Thomson said: "Dr. Wilson are you talking about? He is not a professor yet. He has been in my laboratory for several years before and has a good relationship with Rutherford and the others. Do you have anything to do with him?"
Li Yu said: "One of Dr. Wilson's inventions is very meaningful, and I would like to borrow it from him."
Thomson said: "Yes, but he is not my subordinate now. Wilson became a physics lecturer a few years ago. He should be in the physics department now and should be taking classes at this time."
Li Yu said: "Thank you, director, I will go find him now."
There are definitely not as many students in universities today as there were in later generations. Li Yu saw Wilson who was in class outside the classroom. He was talking on the stage:
"Energy transfers, through work, through heat, energy changes."
Wilson then wrote down several integral equations and continued: "They go in and out of the systems that regulate our lives. These systems interact to seek balance. An ice cube will melt in a hot room, and the energy of this process The transfer increases entropy. This process, like other natural processes, is irreversible."
However, Cambridge students seemed to be difficult to deal with, and soon a student raised his hand.
Wilson said: "Eddington, what do you want to say?"
Li Yu was shocked outside the house, "Okay, Eddington. This man later became very famous in astronomy." But he is most famous for one of his famous quotes.
At that time, Einstein had published a more complex general theory of relativity. Eddington was a die-hard fan and preached the theory of relativity everywhere.
Once a reporter asked Eddington: "I heard that there are only three people in the world who really understand the theory of relativity?"
Eddington thought for a moment and said, "I'm wondering who the third person is."
This joke is widely circulated. Li Yu heard it when he was a child and was deeply affected by it: Newborn calves are not afraid of tigers, so they want to know if it is really that difficult!
This was one of the reasons why Li Yu chose physics.
Returning to the current class, Eddington said: "If heat is the result of molecular motion, and Newton's laws of motion are reversible, then how do you explain what you just said about 'irreversibility'?"
Eddington's question was quite sharp at this time, and Li Yu had time to wait outside to see how Wilson would answer.
Wilson was not in a hurry: "Although there are some obvious signs of the existence of molecules, I want to say that this is a classroom. I can only teach you what you already know. As for how to explore in the future, it is your business. .”
Eddington said: "Then when will you allow us to do the experiments that Mr. Li Yu mentioned in the paper?"
Wilson said: "This experiment has a premise, which is that the existence of the molecule must be 100% confirmed. This is the experimental idea to eliminate interference."
At this time, another student raised his hand.
Wilson said, "Mr. Bakla, what's your problem?"
Good guy, it's Charles Bakra again, winner of the 1917 Nobel Prize in Physics.
As mentioned before, Rutherford came to Cambridge on a scholarship, and Bakra was also the recipient of this scholarship.
Two years ago he went to study at the University of Liverpool, and now he is back in Cambridge.
This class is really exciting.
Bakra said: "From a kinematic point of view, Newton's laws of motion are reversible, just like if I scatter a box of pencils from the pencil box to the ground, they will not spontaneously return to the box, but from a mathematical point of view , but it can be done.”
"Oh!" Wilson felt that his head was getting bigger and bigger. These students were thinking too fast. "If your question could be researched, I think it would be a good graduation thesis. But I don't know how to answer you now."
A few people were chatting, and it was already time for get out of class to end.
Early European universities sometimes resembled chat rooms.
Professors also like to sit together with students to discuss problems. This is a tradition: in the past, paper in Europe was extremely scarce and parchment was even less, so there were very few books. In a class, only the lecturer might have one book in his hand, so everyone could only Surround the lecturer to listen and discuss.
Eddington and Bakla were still pestering Wilson. They walked out of the classroom and suddenly saw Li Yu standing by the window.
Bakla was the first to recognize it: "Are you Academician Li Yu?! Oh my god!"
Wilson knew that Li Yu was in Cambridge, but he did not expect him to come to the teaching area. "It is a great honor to meet Mr. Academician."
Li Yu smiled and said, "I'm sorry to bother you."
Wilson said: "You are here and I can no longer answer their questions. I wonder if Mr. Academician can help me with this."
Li Yu said to Bakla: "Mr. Bakla, you may have to thank the development over the years, otherwise this approach of introducing probability theory into physics will attract many people's opposition. Mr. Maxwell received a lot of criticism back then."
Bakra said: "I have read your account of the second law of thermodynamics, entropy increase. Isn't it correct? I remember that you used a lot of mathematical derivation, which was very exciting."
Li Yu said: "If we follow the theory of probability, not only pencils can return to the pencil box by themselves, but even a pile of sand can automatically turn into a castle, steel can automatically turn into a train, and ink spilled on paper can even automatically complete homework. However, due to the principle of increasing entropy, this is impossible.
Because this is from disorder to order, that is, entropy decreases.
Mathematics and physics are closely related, but their differences cannot be ignored. After all, for physics, physical meaning is crucial. "
Bakla suddenly realized: "Thank you, academician, for clarifying my doubts. I hope to study and work with you in the future."
Li Yu knew that Bakla was a person with great potential, so he said: "Of course. But you must get excellent in the academic examination."
Bakla immediately said: "I can definitely do it!"
Eddington was also shocked by Li Yu's achievements in astronomy: "Mr. Academician, I have read almost all of your articles. I found that your articles not only indicate that mathematics and physics are closely related, but also imply that astronomy and physics are closely related. Learning has an inseparable inner connection.”
Li Yu smiled and said: "Your insights are very accurate and admirable."
Wilson said from the side: "Mr. Academician is very good at teaching. I think they will be very encouraged by your few comments."
"Whatever they have to do with me is the result of their own efforts." Li Yu said.
"Mr. Academician is indeed as rumored to be, full of Eastern virtues of humility," Wilson said. "By the way, are you going to find Director Thomson? The laboratory is not in this direction."
Li Yu said: "It doesn't matter, I'm just here to find you about your experimental device."
Wilson asked, "Cloud Room?"
Li Yu nodded: "That's right."
"Please come with me," Wilson said.
In Wilson's office, there is an early form of the cloud chamber. Although it is a bit crude, it has been opened up in principle.
Li Yu looked at it and said, "If you can take pictures, it will be more useful."
Wilson said: "You mean, like those astronomical telescopes at Greenwich Observatory, which can not only observe, but also take pictures?"
"Yes," Li Yu said, "microscopic things require more photos."
Wilson thought for a while: "I have always regarded it as an instrument for exploring X-rays, and I didn't think too much about it."
Li Yu smiled and said, "Then you must think about it carefully."
Wilson agreed: "I can give it a try, but I need to discuss with the principal to find someone to teach you."
Li Yu said: "If you can't find anyone, I can help you!"
Wilson was also happy: "If the principal hears this, he will definitely not be able to find anyone else to take over."
As Wilson said, Cambridge University "suddenly" couldn't find anyone else to teach physics.
There was no other way. In order for Wilson to complete the improvement of the cloud room as soon as possible, Li Yu could only help him take the class.
Anyway, in universities of this era, whether in Europe, the United States or China, classes are relatively casual. There is no particularly fixed teaching plan, and professors and lecturers have a lot of room for free expression.
(At most, Germany may have introduced militarized management in some universities, which is quite special.)
Professors and lecturers sometimes even study their own topics in class and deduce very cutting-edge theories on the blackboard. It doesn’t matter whether anyone below can understand it...
Um, it seems that the Internet said that this is also the case when Wei Shen teaches mathematics classes?
In fact, in top universities, it is really not surprising. There is no need to ridicule others for their poor teaching skills.
So Li Yu can talk casually at this time.
But this was great, as many students from other majors came over, so the class could only be turned into a seminar.
By the end, even students from Eton College came to listen to Li Yu's lecture.
Eton College has 250 graduates every year, more than 70 of them can enter Oxford and Cambridge, and most of the others can also enter the world's famous universities. It is a typical "cradle of elites" in the UK and has produced 20 prime ministers alone.
Eton College has a long history, and its location is impressive: the small town of Windsor. Windsor is the surname used by the British royal family since then.
Originally, this school hoped to allow children from poor families to attend school and serve as a preparatory school for Cambridge University.
Who would have thought that by the 17th century, as aristocratic children rushed to attend Eton College as an honor, Eton College would become the most famous aristocratic school in the UK, making it once again out of reach for common people.
In later generations, it became recognized as the best middle school in the UK.
Li Yu thought about future generations. It seems that no middle school in the country dares to stand up and say that it is the best in the country. At most, it can be said to be the first.
