Five, the locust shadows are unevenly covered with apricot ()

After entering the seventh month of the lunar calendar, Sun Yuanqi was always in the Horse Temple. On the one hand, he took advantage of the recollection of writing middle school and university physics textbooks. Because he didn't know what the specific textbooks are now, he could only recall the 21st century textbooks; on the other hand, he conceived papers to be sent to foreign countries. As for the rebellious reforms outside, Sun Yuanqi had no interest in politics, and knew that he was powerless and had no way to make things happen. Moreover, the water in the pond was too deep, and maybe he drowned himself in it. Although it had nothing to do with him, he still dreamed of being pushed to Caishikou several times.

"It's going to rain, and my mother wants to get married, so let him go!"

On the sixth day of the lunar month, Ding Weiliang sent someone to send a letter of appointment, which was neatly written in a brush:

"Chongshi Middle School Recruitment Letter

Hereby hire

Mr. Sun Yuanqi is a teacher in this school. His term of office is one academic year and his monthly salary is 40 yuan.

This recruitment.

Principal: (Ke Ninghan Yin)

July 5, 24th year of the Guangxu period of the Qing Dynasty”

Through the name, we can know that the principal is a foreigner, but he has a Chinese seal, which is a bit inconsistent. Sun Yuanqi didn't care and carefully put it away. This was his first job in the Qing Dynasty. Two days later, he personally went to Ding Yuliang's mansion to thank him. He followed Ding Yuliang's instructions and went to pay homage to Mr. Ke Ninghan.

Mr. Ke Ninghan is also a pastor. He has been the principal of Chongshi Middle School for six or seven years. He is a rigorous middle-aged man. Compared to Ding Weiliang's fluent Beijing accent, Mr. Ke Ninghan's Chinese is worse than Ding Weiliang's fluent Beijing accent, and it is easier to talk in English. Seeing that Sun Yuanqi is so young, he is somewhat suspicious of his education. Sun Yuanqi did not dare to be serious. Although he is a real master's degree, he has never set foot in the United States except for seeing the United States in movies and TV. Given that Sun Yuanqi was recommended by Mr. Ding Weiliang, Mr. Ke Ninghan was not very dissatisfied. He just gave some advice on precautions and lent Sun Yuanqi a book "Introduction to the Study of Things" to familiarize himself with the course.

On July 16th, that is, on September 1, 1898, Chongshi Middle School opened.

Chongshi Middle School is located in Wanzhong Lane inside Chongwenmen. According to Mr. Ke Ninghan, there are 164 students in the third category of junior high school, middle school and advanced school, but there are only 3 staff members and 6 teachers. They need to be responsible for self-cultivation, reading and preaching, Chinese, mathematics, history, geography, museum, English, painting, gymnastics, singing and other courses. Among them, the entire school’s Gzhi classes are taught by Sun Yuanqi.

The first class is for advanced classes.

The moment when Sun Yuanqi stepped into the teacher with a long gown and cloth shoes, he felt like he was crossing time and space, as if he was attending the unsuccessful interview. When he arrived on the stage, he looked at the uneven students below the stage and felt that the facts were too far from imagination, at least the gap between them and the middle school in the 21st century was too big that he couldn't adapt for a while: the desks below the stage were quite neat, but among the more than 20 people in a classroom, there were 15 or 16 years old and 20 years old, all wearing long gowns, dragging their braids, sitting in their seats in a regular manner, curiously looking at the young and handsome new teacher. Mr. Ke Ninghan sat at the end of the classroom, probably not very relieved, so he came to listen in person.

Sun Yuanqi cleared his throat: "My surname is Sun, my name is Yuanqi, and my name is Baixi. From now on, I will teach you physics, that is, Gezhi. Perhaps, in the future, we will more generalize the word "physics". The so-called "physics" is the fundamental principle of all things. Before this, I would like to roughly introduce some general contents of classical physics. Classical physics is generally divided into four parts: mechanics, thermal, optics, and electromagnetics. According to the differences in students' grades, the following arrangements are made: elementary class teach acoustics, mechanics, mechanics, secondary class teach mechanics, thermos; advanced class teach optics, electromagnetics. Because there are no suitable textbooks at this stage, I hope everyone will listen carefully in class and take good notes. If you have any questions in class, you can raise your hand to ask questions."

There was a silence below, just staring at him.

"So, let's start the class. In the first class, we mainly describe the light phenomenon around us." In this way, the first class began. In the class, Sun Yuanqi tried to use popular language and examples in life to explain what a light source is, and to tell the law of light propagating along a straight line, what is reflection, and reflection.

A class at Chongshi Middle School was an hour. When the bell rang, Sun Yuanqi felt his voice hoarse, and finally asked: "Do you have any questions you don't understand?"

There is silence below.

Sun Yuanqi packed up his lecture outline and walked out of the classroom. At this time, Mr. Ke Ninghan also walked out of the classroom and said with a smile: "Mr. johnson, your physics is rigorous and interesting, and it's great."

"Thank you for your compliment, Mr. Ke Ninghan, thank you very much for listening to my class patiently." Sun Yuanqi bowed slightly.

"You're welcome, keep working hard." Mr. Ke Ninghan patted Sun Yuanqi's shoulder hard, and then walked towards the principal's office.

Sun Yuanqi teaches each class two classes a week, with a total of six classes, and occasionally he has to play a guest role in math and museum teachers. Among these third-class classes, the primary class asks the most questions and all kinds of strange questions; the higher class has the least questions, and there are almost no one, and I don’t know how they are studying, but they have done their homework well, which is the only thing that is worthy of gratitude.

Soon two weeks later, Sun Yuanqi also received his first salary from the Qing Dynasty: 40 yuan Yingyang. After coming to the Qing Dynasty, Mr. Kang Ge gave 15 yuan Yingyang and Mr. Ding Weiliang also gave 10 taels of silver. On weekdays, in addition to the expensive handicraft products, the food was extremely cheap, but Sun Yuanqi's biggest expense was food. So after more than a month, the 10 taels of silver in his hand was not moved, and Yingyang still had 1 yuan spent. Now, with 40 yuan, he actually had a small family income.

On Saturday afternoon, Sun Yuanqi brought a box of snacks bought by Lao Tong, brought 15 pieces of Yingyang, wearing a long gown, cloth shoes and a hat to meet Mr. Kang.

Speaking of hats, Sun Yuanqi had a headache. When he first arrived in the Qing Dynasty, his hair was flat. After more than a month, he grew one inch longer, but he didn't dare to go out to find a barber to shave his head. In the summer, his hair was long and he had to hold a hat and drag a fake braid, and he had to cover his head with a prickly heat. Also, it was not convenient to shave, so he had to use the bought razor and slowly shave in front of the mirror. Even so, there were still several holes on his chin...

I went to Dongjiaomin Lane a month ago, and this time I was familiar with the road. But this time, the Qing soldiers became brave and proud. When they saw Sun Yuanqi wearing a long gown, they came to surround him with a knife and a gun. Fortunately, they were prepared before, so they took out the road list issued by Ding Weiliang, which was covered with the "Beijing University Hall". They looked at it several times, but there was no mistake, so they had to wave their hand to release them. The American soldiers were also very careful about the Qing people, but this time it was not as expensive as the last time. The road list was genuine and passed the test smoothly after the end.

After entering the yard of the US Embassy, ​​Sun Yuan immediately took off his hat: Not only did he suffer, but the foreigners passing by were not very friendly. Unexpectedly, he took off his hat and looked at it with more eyes.

Fortunately, Mr. Kang's house was not far from him. After ringing the doorbell, the black nanny came out. Sun Yuanqi smiled and said hello: "I'm very happy to see you again!"

The black nanny was stunned at first, but the Asian height and short hair immediately reminded her: "Ha--you are the Asian before, right? Come in quickly, Mr. Conger and his wife are having afternoon tea."

When Kangge's family saw Sun Yuanqi walking into the living room, they all stood up. Mr. Kangge smiled and stretched out his hand and said, "Good afternoon, young man, we're meeting again."

"Yes, Mr. Kang, it's an honor to see you again, and you, the beautiful Mrs.." Sun Yuanqi handed the snack to Mrs. Kang, and then shook hands enthusiastically with Mr. Kang, "Thank you very much for your help to me last time."

"Sit down and say something. What to drink, tea or coffee?" Kanger said, pointing to the sofa.

The black nanny said, "Is it the cappuccino of the last time?"

"Yes, thank you." After saying that, he sat down on the sofa.

Mrs. Conger opened the dim sum box: "You brought the dim sum to use, they looked delicious."

Mrs. Kangge's full name is sarahpikeconger. She came to Beijing with Kangge, but she didn't see him when Sun Yuan got up last time. Mrs. Kangge is quite famous in the history of Sino-US exchanges: she has met Empress Dowager Cixi nine times and has written the book "Beijing Letters - Especially about Empress Dowager Cixi and Chinese Women".

"Thank you." Sun Yuanqi replied politely, then took out the prepared 15 yuan Yingyang and put it on the table. "This is the money I borrowed from Mr. Kang last time. Because I got my salary after work, I paid it back first. As for Mr. Wang's kindness and friendship, I will always remember it."

Mr. Kang was very straightforward and did not shirk his mind and asked, "Is the university started? The newspaper said that there is still some time."

"The university has not started, and it was the kind-hearted Mr. Ding Weiliang who found a position in middle school for me." Sun Yuanqi replied.

"Ding Weiliang, I have seen him. He is a kind priest." Mrs. Kang interjected.

Mr. Conger said: "By the way, I should say sorry to you. I think we all made a mistake. Because I just arrived in Beijing, I thought the name of "Beijing University" could be written in the pinyin of Vitoma and written as "national kingshim university". I recently learned that it is usually translated as "metropolitan university" or "imperialuniversity of peking". The only thing that is thankful is that the mailing address of your paper is the US Embassy in China, and there should be no problem receiving the reply."

"This may be due to my misleading." Sun Yuanqi felt that he might be the first to say the term "national jingshi university". "kingshim university is also a good name, isn't it?"

The two smiled at each other. Mrs. Cong was a little confused: "Thesis? Young man, what are you writing about?"

"Madam, you can call me york." Sun Yuanqi suspected that Mr. Kang did not remember his name anymore, "It was a paper I wrote about rays of radium radiation."

"Sounds interesting." Mrs. Conger was very interested. "So, york, has your paper been published?"

Sun Yuanqi also wanted to know the answer to this question, and looked at Mr. Kangge. Mr. Kangge shrugged: "It has been sent to Science. Because the email has to travel across the Pacific Ocean, I guess it will have to wait for a while before there will be news."

In the scientific community of the 21st century, the American Science and the British Nature are definitely god-like existences. If an article can be published on it, it will immediately be upgraded from a "rookie" to a "big bull". The reason why Sun Yuanqi wanted to invest in these two magazines was not because they were awesome, but at the end of the 19th century, he only knew that these two magazines were founded:

Science: In 1880, Thomas Edison, the inventor of the electric lamp and one of the world's most famous scientists, founded Science Weekly. Today, Science Weekly has become the comprehensive scientific journal with the largest number of subscribers in the world. Science Weekly provides 160,000 subscribers around the world with superb editing methods every week: the most important news reports on science and science policy that week and the most significant breakthrough in global scientific research. In this sense, Science Weekly is both a traditional academic journal and a news magazine.

"nature": There are eleven publications in the big family of nature: weekly nature (founded in 1869); monthly nature genetics (founded in 1992); nature structural biology (founded in 1994); nature medicine (founded in 1995); nature biotechnology (founded in 1996); nature neuroscience (founded in 1998); nature ce llbiology (founded in 1999); nature immunology (founded in 2000); and three other review journals, nature reviews neuroscience (founded in 2000). The main purpose of founding these journals is to publish the highest quality scientific papers in the industry, any article in the scientific field with great potential. At the same time, some commentary articles, new stories, brief descriptions, etc. The submission form can also be letters, news, reviews, etc.

Speaking of this, Sun Yuanqi took out a stack of paper from his schoolbag and handed it to Mr. Kang. After a closer look, it was a paper titled "Experiments and Conjectures on Atomic Structures".

In the early 20th century, scientists were very curious about the structure of atoms, devoted a lot of energy to research, and took many detours: After Thomson discovered electrons, he proposed a model that seemed more reasonable at the time, that is, the positively charged parts of the atom are evenly distributed in the atomic body, and electrons are embedded in it, which is called the "raisin bread model". In order to test whether the Thomson model is correct, Rutherford designed a particle scattering experiment in 1911, and in the experiment it was observed that most particles deflected about one degree after passing through the gold foil. However, about 1/8000 of the particle scattering angle, even reaching 180 degrees, occurs back reflection. The fact that particle a has a large angle scatter cannot be explained by the Thomson model. Unless the positive charge in the atom is concentrated in a very small volume, the repulsive force will be so large that it causes particle a to scatter. On this basis, Rutherford proposed a nuclear model of the atom, also known as the "rutherford model", believing that there is a very small atomic nucleus in the center of the atom, which concentrates all the positive charge and almost all the mass, and all electrons are distributed around it. This takes the first step to correctly understand the atom structure.

Junior high school students in the 21st century knew the structure of atoms. But at this time, top scientists Thomson, Rutherford, Einstein and others needed to study and discover. These were the cornerstones of later scientific development. Without this link, natural science stayed in the primary stage. Sun Yuanqi's paper started with Thomson's discovery of electrons and the "Experimental Research on Uranium, Polynium, and Radiation Radiation Radiation" written by himself not long ago. Using Rutherford's A-particle scattering experiment, the famous Rutherford scattering formula was derived, thus "conjecture" that there is an extremely small atomic nucleus in the center of the atom, which concentrates all positive charges and almost all mass; all electrons are distributed around it and run in orbit.

Mr. Kangge didn't understand a lot, so he handed it to his wife, so she naturally didn't understand it either. Sun Yuanqi had to use popular language to describe the background of the experiment and carefully explain the importance of the experiment process and the experimental results. Through the narration, Kangge and his wife finally understood something.

"This is a very magical experiment. Are you going to publish this paper?" asked Mrs. Conger.

"Yes, ma'am. But I don't know how to send it out yet..." Sun Yuanqi was completely ignorant about how the postal system works now, "so I want to ask Mr. Kang, hoping to get some help."

Mr. Conger laughed: "Then you are here at the right time. My wife will set off in two days to London, England. Because my son Thomas is studying in Cambridge, she misses him so much. Maybe she can take the time to go to Nature Magazine and deliver it in person."
Chapter completed!