The R&D project of Zeus Laboratory's sound film equipment has entered the stage of substantial engineering drawing design.

If you want Jack, Andrew and other engineers to make advanced recording equipment, Li Kangping has to tell them the core technology of recording equipment.

Li Kangping has passed on some of the core technology of the recording equipment to his technicians, which involves an important issue--- secrecy.

The Secrecy work of the sound film R&D team of Xidian Company has done a good job, and Zeus Laboratory should learn from Xidian Company in terms of confidentiality.

With regard to the work of technical secrecy, Li Kangping has already found some experience.

For example, the research and development project of electronic TV, which is an advanced technology project, and the risk of technical leakage is relatively small. As far as Li Kangping knows, apart from his team, there seems to be no one studying electronic TV at present, which means that even if Zvorikin and other core technical personnel betray Zeus Laboratory, they will have nowhere to go for the time being.

Another example is the superheterodyne radio project, in which Li Kangping obtained patent protection by buying out the patent to ensure the various interests of the Poseidon Radio Company.

Even if Alex, the technical director of Poseidon Radio, switched to other radio companies, the patent for superheterodyne radio still belonged to Poseidon Radio, and other companies were not allowed to produce or sell superheterodyne radios without permission.

Overall, patents are protected in a way that essentially ensures that the core technology will not be exploited by others for 17 years. Li Kangping prefers this approach.

In fact, Li Kangping's sound film R&D team is stealing people's jobs.

Edison has almost faded out, and in the field of sound film equipment research and development, Li Kangping's team is actually robbing Lee DeForrest of his team for jobs, or other technical teams.

Now that Jack, Andrew and other engineers have mastered some of the core technologies of sound film equipment, how do you ensure that they don't leak secrets and are not poached by competitors?

Sign a confidentiality agreement, raise wages, and treat each other sincerely. This is the approach that Li Kangping has taken to his core technicians.

Even if these measures are taken, there is still a possibility that the core technical personnel will betray Li Kangping.

Therefore, before obtaining patent protection, Li Kangping's sense of security is difficult to reach the full value.

In the month that Li Kangping traveled back and forth between California and New York, many letters were sent from Europe.

In his letter, Albert Einstein wrote: "Dear Lee, you must have received the December issue of the Annals of Physics. I have been thinking and arguing about the theory of matter waves for about a year and a half, and now I will tell you my conclusion: you have shown how a particle of matter or a system of particles should be associated with a scalar wave field, and I have done some of the same, and I have come to the same conclusion as you, that a particle of matter of mass m0 should first correspond to the same frequency ν0 as follows: m0c^ν0. ”

"Now suppose that the particle is stationary with respect to a Galilean coordinate system K', in which we can imagine a periodic motion everywhere in phase with an oscillation of frequency ν0. For the coordinate system K, K' and mass m0 move forward along the x-axis with velocity v, and there is a fluctuation process of the following form with respect to the coordinate system K......"

“…… The v at this point, as you pointed out, is exactly equal to the group velocity of the wave. Even better, the energy of the particle is exactly equal to hν, which is consistent with the basic relationship of quantum theory. ”

"Lee, your theory of matter waves has been proven by two brilliant experiments. I thank you for bringing the light of day to physics. ”

This part of the letter is my comment on the theory of matter waves. It will appear in the February or March issue of the Annals of Physics in one or two pages. ”

Reading this, Li Kangping jumped up excitedly.

The long-awaited "You brought the dawn to physics" was finally written by Einstein.

The theory of matter waves is indeed very complex and profound, and Einstein studied and demonstrated it for a year and a half, and he combined the evidence of low-energy/high-energy electron diffraction experiments to truly endorse the theory of matter waves.

In addition, Einstein promised to publish his positive evaluation of the theory of matter waves in the Annals of Physics in February or March in the form of a review piece.

"Mr. Einstein, I sincerely appreciate your outstanding contribution to physics." Li Kangping said into the air.

Einstein's letter was quite long, and Li Kangping continued to read the rest of the content.

However, the Principle of Electron Spin and Incompatibility still needs to be demonstrated. My student Smekar was emaciated by the "Electron Spin and Incompatibility Principle", and I haven't spent much time studying the "Electron Spin and Incompatibility Principle" lately, and the Leiden team and the Munich team have spent more time and energy than me. It is said that the Göttingen team and the Copenhagen team have also joined the research team of the "Electron Spin and Incompatibility Principle". ”

"Suffice it to say, since the publication of the Annals of Physics in December, the whole of Europe has been working on the demonstration of your matter waves, the Electron Spin and the Incompatibility Principle. So you're satisfied, you've kept all the European physicists busy. They're busy supporting your theory, they're busy opposing your theory, and all in all they're busier than ever. ”

"I'll tell you what I've been up to lately, I'm busy exchanging academics with a young Indian physicist named Bose."

"Bose sent me a paper, a paper on statistics. I think Bose is a physics genius, and his genius is probably not inferior to yours. Therefore, I translated Bose's paper into German......"

Bose was an unknown physicist who wrote a physics paper, but no physics journal wanted to include his paper.

In desperation, Bose sent his paper to Einstein, whom he had never met.

Albert Einstein was a true philanthropist, a powerful leader in physics, but he was approachable and amiable to a young Indian who was not famous.

Bose did not understand German, and Einstein personally translated Bose's English paper into German and asked a German physics journal to publish it.

In the letter, Einstein only said that Bose's paper was related to statistics, but did not say anything specific.

Li Kangping knew that the paper that Bose was about to publish in the German physics journal in 1924 should be the first edition of Bose-Einstein statistics.

Einstein said that he had been busy lately, and it turned out that he was busy studying Bose-Einstein statistics.

Let's review some of the most important news in physics recently.

We've got the theory of matter waves, we've got the Compton effect, we've got the electron spin and the principle of dissimilarity, and we'll soon have Bose-Einstein statistics.

What does this mean?

Li Kangping feels that this means that the time is ripe to come up with the concept of quantum mechanics.