Davidson began experimenting with electron diffraction as early as 1921, but it never failed.

At the beginning of 1926, Schrödinger published a paper on wave dynamics, and Davidson saw this significant paper for the first time and was deeply inspired.

Subsequently, Davidson refined the experimental method, which finally succeeded in 1927.

Now, at the beginning of 1922, Li Kangping had just published "Matter Waves", and wave dynamics was only a prototype, and a complete set of theories had not yet been formed, which needed to be supplemented and perfected by Schrödinger and others.

And Schrödinger should have treated his mistress well in a villa in the Alps at this time, Schrödinger, who was obsessed with love, must not have paid much attention to studying wave dynamics at this time.

Now throwing Schrödinger's paper on wave dynamics directly is obviously out of line.

Li Kangping designed a theoretical/technical route, and at a certain point in time, a certain theory or technology was launched.

The introduction of new theories and technologies should be combined with the current overall environment and the advanced values that people can accept.

If people's lead value is in the next five years, and you launch black technology in the next ten or twenty years, it is inappropriate.

The term of patent protection in the United States is 17 years, and Li Kangping does not need to apply so early for a patented technology that can only be applied on a large scale in the next few decades.

How to grasp the heat is the test of Li Kangping's overall layout and detailed operation.

The same is true for business, where the launch of new products and new business models needs to be combined with current consumption habits and market patterns, as well as advanced values that can be accepted by consumers to a certain extent.

Let Schrödinger's essay be written by Schrödinger himself.

Li Kangping bypassed Schrödinger's theory and mainly demonstrated the feasibility of electron diffraction experiments from the aspect of experimental technology.

"X-rays and light have only a faint effect on crystal atoms and easily penetrate the crystal structure. It is for this reason that the diffraction image of X-rays is relatively weak. Theoretically, electron waves are very different from X-rays, and the charge of the crystal atoms has a strong effect on it, and it is quickly absorbed in the crystal. In other words, what cannot be verified by X-ray diffraction may be achieved by electron diffraction. ”

"Based on this principle, I conceived such an experimental design, trying to use electron diffraction experiments to prove the waves of matter."

Li Kangping said as he drew a picture on the blackboard, while the other three listened quietly and observed carefully.

The overall visual effect of Li Kangping's electron diffraction experiment schematic is a fan, and he looks at the diagram and speaks: "I designed it this way, a beam of electrons with a known velocity hits a nickel crystal, and the collector can only receive elastically scattered electrons, and can move around the crystal along an arc, and the crystal itself can rotate around the axis of incidence, so it is possible to measure elastic scattering in any direction in front of the crystal, except within 10° or 15° angle of the incident beam." ”

Professor Woodgate, who was still smoking in his hand, took a sharp puff on his cigarette and said, "Lee, the design of your experimental principle is very different from the Ransholl ring method, to be exact, two different experiments. ”

The well-read Professor Woodgate had read the German physicist Jean Sauer's 1920 paper "Cross-section of gas molecules on slow electrons".

The Ranshoer ring method is an experimental method for studying the motion of electrons, and Ransauer uses this method to determine the speed and energy of slow electrons with a high degree of accuracy.

The concept of an effective cross-section of particles colliding with each other was first proposed by Ransauer, who continued to use his toroidal method to study experiments on the elastic collision of slow electrons with atoms of various gases.

The Ranshohl Ring Method, as the name suggests, looks like a ring in the schematic diagram of this experimental method.

The schematic diagram of Li Kangping's electron diffraction experiment is a 120-degree fan.

Is it the work of the older generation of German physicists, or the work of the rising Chinese physicists?

The 20s of the 20th century was an extraordinary decade in the history of the development of physics, with the fierce collision of old and new ideas, the emergence of new theories and new technologies, the reckless rush forward of newcomers, the veterans stick to their traditional positions, the back waves of the Yangtze River push the front waves, and the front waves die on the beach.

The ideological lead of ordinary people is very low, it is said that they can only be about 7 seconds ahead.

It is sad and ridiculous that some people are not ahead of their time, but they are backwards.

People with years, tens, decades, or even centuries of forward thinking are basically the smartest and most elite group of people.

Luckily, Professor Woodgate was ahead of his time academically, saying, "Ran Sauer mainly studies gases, and we study crystals experimentally, and I think we can try Lee's experimental design, Mark, Allen, you can also talk about your ideas." ”

Mark walked over to the blackboard, pointed to the experimental schematic and said, "Regarding Lee's experimental design, my understanding is that the scattering current depends on four factors: the bombardment current, the bearing, the scattering angle, and the bombardment voltage. We all know that--- even before the experiment has begun, we know that there is a simple proportional relationship between the scattering current and the bombardment current. Therefore, our experiments mainly examine the relationship between the scattering current and the last three items. I understand it this way, is there a problem? ”

"Mark, I don't think there's anything wrong with your understanding." Li Kangping expressed his affirmation.

In this laboratory, apart from Professor Woodgate, the most highly educated is Dr. Mark Phillips.

After all, a doctor is a doctor, and the level of a doctor is very high.

At this stage, Kangping Li cannot be called Dr. Lee, and Kangping is working hard to become Dr. Lee.

"I think we should use Lee's experimental design schematic diagram as a program and continue to carry out the following work." Alan talked about his opinion, he was originally a lively and enthusiastic young man, but at this time he was a little dull and depressed.

Alan was fortunate that his first experiment as a master's student was the famous Woodgate-Lee experiment.

However, the situation has evolved into this, and the Woodgate-Lee experiment does not seem to have anything to do with Allen.

Woodgate attended the Solvay Conference and was promoted to the rank of Grand Professor, and Li Kangping's surname appeared in academic terms, and he gradually became famous in the physics community. Alan participated in the Woodgate-Lee experiment the whole time, but Alan didn't even get a master's degree certificate.

It takes a long time to cultivate excellent physics talents, and after all, Allen has only studied for one year for a master's degree, and his academic level is somewhat different from that of professors and Li. Alan resigned himself to his fate and obeyed the rules of the academic world.

Mark suddenly arrives at the lab, which makes Allen's sense of crisis intensify.

Ph.D. VS master's student, grade suppression.

When will you come out?

There is no need to go into detail about the many benefits of following the Great Professor, but it is really distressing that the Great Professor arranges high-level players to suppress you from time to time.

In any case, the status in the physics laboratory is determined by academic strength, and there may be unfairness, but it is definitely much fairer than the world outside the laboratory.

The ecological chain in academia is roughly like this, you are consumed by high-level players first, and when you become a high-level player, you consume others.

The experimental schematic is similar to an outline, and once it is determined, it cannot be easily modified.

The Woodgate team of four was extremely cautious, and they discussed it for a whole week, and finally decided to follow Lee's experimental schematic to do the rest of the work.