"Lee, you said that the experiment of the crystal diffracted by electrons can prove the wave of matter, and I designed another experiment to try to find evidence from a new direction. Arthur Compton. ”

In the letter, Arthur Compton expressed his subjective willingness to accept "Matter Wave", and although there were many doubts, he was still willing to accept "Matter Wave".

On the one hand, Arthur Compton wanted Lee to answer his questions on paper. Arthur Compton, on the other hand, tried to answer his own doubts by doing his own experiments.

Arthur Compton was still working at Washington University in St. Louis at this time. Li Kangping replied to Compton's six questions in a paper article, and Compton did not describe the details of Compton's experiment, so Li Kangping did not ask about the specific situation of Compton's experiment.

The Arthur Compton Question is not a reviewer questioning the author of a paper, it is more like an equal academic exchange between scholars and scholars.

Li Kangping sent the letter to Washington University in St. Louis, hoping that Mr. Compton would be inspired by the purely theoretical content.

On this day, Professor Woodgate said to his teaching assistants and students: "Mr. John Morris, who is the head of the engineering and technical department of Xidian, invited me to give a lecture at Xidian, and now, you are coming with me to Xidian. ”

The fact that Xidian sponsored the Woodgate team seemed plausible, and the four members of the Woodgate team went to Xidian.

Located on West Street in New York City, on the west side of Greenwich Village, Xidian is a 13-story yellow brick building that looks like a castle overlooking New York Harbor.

Mr. John Morris warmly welcomed the Woodgate team and led them to visit the main building and the factory of the engineering technology department of Xidian Company.

At XDP, there is no strict distinction between a scientist and an engineer, and everyone is seen as an engineer and is tasked with a project.

XD's engineers work in spacious, open-plan rooms, and many of the building's spacious rooms are used for drawing. Dressed in crisp white shirts with sleeves rolled up above the elbows, the engineers were busy at the rows of drafting tables.

The 500,000-square-foot facility of XD's engineering technology department is filled with testing laboratories for telephones, cables, switches, power cords, coils, and various important components.

There are also chemical laboratories that test the properties of new materials, such as alloys for wires and cladding materials for cables. and a small workshop full of wires, dials, and batteries, where a large number of employees test the effect of electric currents and study different combinations of circuits.

The vacuum tube workshop seems to be the most messy workshop, although it is messy, it does not affect the work of engineers and technicians.

The Engineering and Technology Department is the R&D department of XD and is one of the most important departments of the company.

Located in the West Street engineering technology department factory is composed of many laboratories and small workshops, the engineering technology department is not only to do sample research and development, the department can also produce a variety of electronic products on a small scale, the engineering technology department is actually a combination of research and development department + trial production workshop.

During the visit, Li Kangping felt a lot of emotion.

Xidian is a high-tech company of this era, and they invest more than $1 million a year in research and development, producing an average of one new patent every week.

The engineering department has state-of-the-art equipment and the brightest professionals, and the engineers seem to be drafting dogs or circuit dogs and test dogs, but many of them have academic backgrounds.

Some people used to do pure academic research, but after coming to the engineering and technology department of XD, they transformed into academic application or pure application engineers.

An engineer with a science background and academic research at an academic institution is not the same as an engineer with a pure engineering background.

All in all, in Li Kangping's view, these well-paid engineers are the most valuable asset of XDP.

At the end of the tour, the four members of the Woodgate team followed John Morris to the conference room in the main building.

There is no doubt that the four from Columbia University are purely academic research scholars.

The cooperation between Columbia University and Xidian probably belongs to the cooperation of combining production, education and research, and of course, there are certain commercial factors in it.

According to Director John Morris, all the engineers in the engineering and technical department with academic backgrounds sat in this room.

Next, I would like to invite our beloved Dr. William Woodgate to speak to us.

"Thank you, everyone, thank you."

Professor Woodgate, who had already been prepared, calmly began his academic lecture.

As we all know, Professor Woodgate mainly studies highly academic topics such as atomic theory and quantum theory, and his academic lectures are of course about this.

There was no awkward coldness, and the engineers listened to Professor Woodgate's talk about atomic theory and quantum theory with relish.

A group willing to speak, a group willing to listen, and Professor Woodgate's academic lecture ended on a successful note.

The crowd dispersed, and only John Morris and the Columbia Quartet were left in the room.

"Perfect speech, perfect speech!" John Morris looked very excited and unsatisfied, and he said: "Did I tell you that I studied physics in college---- physics of all kinds of rays, yes, it was a wonderful time that I will never forget. Now, if it weren't for my work, I would have gone to the best institute in the world for a few years--- maybe I would have become a physicist! ”

John Morris is hypocritical, and everyone can see that John Morris may not have a chance to get out of his work.

"Matter Waves, yes, I've read this paper, I like it--- I don't understand it, but I like it. As you know, few Americans can fully understand Einstein's theory, and that doesn't stop the American people from loving Einstein. Anything that Einstein wrote, or about Einstein, always appeared on the front page of American newspapers. ”

John Morris was a talkative man, and he said to Li Kangping: "Mr. Li, you have written an amazing article...... No, no, no, you've written two amazing articles, and one is a space quantization experiment. I subscribed to every issue of Physical Review, and I spent a lot of time reading these journals and magazines, including Science, Bridge, American Engineering Journal, and American Patent News. Some of the papers I could read, some of which I couldn't, and some of which I didn't understand half-understood. Whether I understand it or not, I have to do it, and my mind must not lag behind the times. ”

An executive of a company that develops and manufactures telephone equipment is commendable for being able to pay attention to matter waves and space quantization in the first place.

Li Kangping smiled: "Mr. Morris, so we will have an in-depth discussion on the wave of matter and the quantization of space on this wonderful night?" ”