After looking for a Jewish tailor to measure his measurements, Li Kangping came to Columbia and visited another Jewish rabbi.

The once-bustling Woodgate Lab is currently guarded by only one rabbi.

The equipment for space quantization experiments and low-energy/high-energy electron diffraction experiments is quietly placed here, and they have made great contributions and are now for the rabbi to study and study.

Accompanying the experimental equipment are the papers that publish the results of these experiments, a total of four papers.

The dissertation is accompanied by a large number of references, including academic monographs by Sommerfeld, Einstein, Bohr and others.

The rabbi mainly studied the materials and observed the equipment, and Professor Woodgate guided him at the theoretical level.

"Isido, how often do you communicate face-to-face with your professors, and do you discuss academics every day?" Li Kangping asked.

"I became a doctoral student as a professor for exactly a month, two or three days, and I would communicate with the professor once, each time for a few minutes to ten minutes." The rabbi replied.

Li Kangping and Allen were taught by Professor Woodgate at the beginning of 1921, when Professor Woodgate had a project in his hands, and Professor Woodgate at that time was full of passion for scientific research.

Since years, Professor Woodgate has taught his graduate students in the form of lab exercises + theoretical instruction.

Professor Woodgate worked with Li Kangping and Allen to design experiments, make experimental equipment, operate experiments, record data, and organize papers.

In this fruitful training mode, Li Kangping and Allen grew rapidly, Li Kangping was already a well-known physicist at this time, and Allen also received a valuable opportunity to study at the University of Göttingen at public expense.

As Professor Woodgate said, he had done all his life's academic research in two or three years.

The space quantization experiment, the molecular beam experiment, plus the low-energy/high-energy electron diffraction experiment, was described by physicists at the APS annual meeting as a great experiment at the Nobel level.

Professor Woodgate, who holds the results of three Nobel Prizes, can understand the idea of retreating bravely.

Professor Woodgate is still fighting on the scientific front, and he said that he will devote more energy to training undergraduate students at Columbia, which is also contributing to the cause of science in the United States.

At the same time, Professor Woodgate began to draft his academic monograph, and he prepared to compile the results of the three Nobel Prizes, as well as the previous twenty years of academic research, which was a necessary academic work for him personally.

Every physicist wants to win the Nobel Prize, and it is not difficult to observe that Professor Woodgate is preparing for the Nobel Prize, and his next stage of work should focus on sorting out the academic research results he has achieved, and actively carrying out academic public relations, publicity and other businesses.

If Professor Woodgate wants to do a new research project, he can certainly get the support of a variety of resources. The professor does not plan to start a new project in the coming days, so the rabbi can only learn theoretical knowledge.

"About the molecular beam approach, Isido? What do you think? Li Kangping communicated with the rabbi in the posture of academic exchange.

"What are the most striking features of the molecular beam approach? It allows us to make precise measurements of isolated atoms and molecules using macroscopic instruments. In terms of direct experiments and the underlying assumptions of the display theory? It has a special value and a wide range of uses. The rabbi replied fluently, and then? He added: "Of course, the original text of this passage is from a paper written by you and your professor in 1921? What I like about this paper? I am also very supportive of your conclusions. ”

"Isido, you're a master in chemistry, so I don't think you should have any problems with experimental operations. I suggest you do a couple of molecular beam experiments with your own hands, you see? The lab equipment is neatly placed here? The full set of design drawings and process data of the experiments we did at that time are also here, and it is very easy for you to repeat our 1921 experiment on the spatial quantization of the molecular beam method 100%. ”

"Dr. Lee, I accept your suggestion, I would love to replicate your 1921 experiment? This is a very necessary experimental training program for me. But, you know what? It doesn't cost anything to put the experimental equipment here, once they are launched? It's going to cost money. ”

"Isidore, I don't want you to be a theoretical knowledge learner guarding experimental equipment? You should become a Ph.D. in physics who is proficient in experimental operations and has a high theoretical level. Do one or several more experiments on the spatial quantization of the molecular beam method? A maximum of $1,000 is enough. Will Manhattan Zeus sponsor $1,000 from Woodgate Labs? So Isidos, you can do experimental training in molecular beam methods after the Christmas holidays. I'll tell my professor about this sponsorship program, and I don't think he will turn it down. ”

"Oh, really? That's great! The rabbi exclaimed excitedly.

"Isido, as you say, the exact repetition of our 1921 experiment is indispensable for a newly admitted Columbia Ph.D. student, but it is only repetitive training, and there is no academic originality in it, which will not allow you to obtain a doctorate. The dissertation for a Ph.D. in physics at Columbia University must have a certain degree of originality, such as the determination of the complex structure of spectra using the molecular beam method. ”

"Determination of the complex structure of spectra using the molecular beam method?"

"Yes, it's an idea of mine, and someone needs to confirm it through experiments. In order to determine the complex structure of the spectrum, some improvements may be required to the molecular beam method. What you need to do now is to master the basics of the molecular beam method and try to get a clear pattern of silver atoms in every experiment. Once you've done that, we'll talk more about the use of molecular beam methods to determine the complex structure of spectra, or other original research projects related to molecular beams. ”

"Okay, Dr. Lee, I'll do that."

"Isidore, while doing experiments, you should not relax your study of physical theory, if you are in trouble at the theoretical level, you can ask Professor Woodgate, or you can talk to me. You see, there is so much theoretical literature here, and if you read it, you can understand the whole physics. Of course, it's hard to read them thoroughly in a short period of time, so you'll need to actively communicate with people who have already read them, which has proven to be a quick way to grasp theoretical knowledge. ”

"Dr. Li, I appreciate your kindness, you are a good person." The rabbi said sincerely.

Li Kangping said kindly: "There is no word 'senior brother' in English, but there is such a phenomenon as 'senior brother'. You and I are both students of Professor Woodgate, and I was admitted and graduated earlier than you, so I am your 'senior brother'. As your 'senior brother', I should take proper care of you. All in all, Isido, if you have any trouble, you can come to me. ”