"Dr. Zvorykin, I think so, apply a coating of particles to the photoelectric target, which has an extremely high resistance value when there is no light irradiation, and when the resistance value decreases when exposed to light, the resistivity change should be proportional to the luminous flux. In this way, when light hits each point of the coating, the coating emits electrons proportionally to the intensity of the light. Therefore, the target surface can be broken down into tiny pixels by an electron beam with a certain cross-sectional area. I think a photoelectric camera tube with this kind of technical performance is a qualified product. ”

"Dr. Li, the key question is, what is the specific composition of the coating made up of particles?"

"This should be a question for chemists." "Of course, as a physicist, I also have a certain understanding of chemistry, and I use many chemical elements, such as silver, lead, nickel, cesium, and other chemical elements, when I do molecular beam experiments and low-energy electron diffraction experiments. After my calculations, I recommend that you use a cesium-silver particle coating. ”

Zvorikin thought for a moment, and he asked, "Does it have to be a cesium-silver combination?" ”

"Not necessarily. Chemistry is ever-changing, and you can try a caesium-silver combination, or you can try a combination of other chemical elements. However, in terms of the number of chemical elements we know, there are too many combinations possible. Therefore, we had to narrow down the combinations to a maximum of 5 combinations. ”

"That's fine, I'm in favor of it."

"In the case of our hypothetical caesium-silver particle coating, what is the ratio of cesium to silver? I can't do the exact calculations, which can only be determined by experiments by chemical engineers to determine the appropriate proportions. So, Dr. Zvorikin, three chemical engineers is too few, and I think there should be at least a dozen chemical engineers to advance the materials research and development project. Don't worry about the budget side, I'll give you an increase in the budget. Now, let me see the progress of CRT development. ”

Compared with photoelectric camera tubes, the research and development progress of picture tubes is somewhat slow.

Dr. Zvorykin pointed to a semi-finished product and said, "This gate is outside the cathode, and we have a hole in the center of it. By changing the voltage between the gate and the cathode, the size of the electron beam can be controlled. For the cathode, a negative pressure of several tens of volts is applied to the gate, and the magnitude of the negative pressure is inversely proportional to the magnitude of the electron beam. The design is designed this way, but the physical development of the test product is only half completed, perhaps less. ”

"Oh, like this. That's to speed things up. ”

Li Kangping conducted research in Zeus Laboratory for a whole day, and he fully understood the research and development progress of the electronic TV project, and put forward several technical suggestions.

It is said that Li Kangping's nephew Ah Bing has been in the United States for more than five months, and the excitement when he first arrived in the United States has long disappeared, and Ah Bing at this time seems melancholy from time to time.

When I was in a private school, several children took classes with Ah Ping. After studying in Guangzhou for an hour, Ah Bing's class has dozens of classmates.

Now, Ah Ping is studying English and mathematics at home, and he only has a private tutor and no classmates.

When he wasn't in class, Ah Bing often sat alone on the lawn in the yard, watching birds and squirrels, smelling the wind and grass, and was in a daze for hours.

Ah Bing's parents and Li Kangping were worried, knowing that if this continued, Ah Ping might be autistic.

Sending Ah Bing to an elementary school in the United States has been included in the Li family's schedule.

Ah Ping did not have a foundation in English before going to the United States, so it is more appropriate to improve Ah Bing's English level to a certain level and then send him to an American elementary school.

Today's spring breeze is blowing, the climate is comfortable, and Li Kangping happens to have free time, so he went to Li Chong's house.

I saw a tree in front of Li Chong's house, Ah Bingpan was sitting here, his eyes sad and thoughtful.

The maid hired by the family did not come close, she waited quietly ten meters away.

Seeing Li Kangping's visit, Ah Bing was a little happy.

Li Kangping sat on the ground, and he said, "What is on Ah Bing's mind, can you communicate with Uncle Kangping?" ”

A Bing said melancholy: "Those who know me say that I am worried, and those who do not know me say what I want." ”

Li Kangping smiled: "Do you know the meaning of this sentence? ”

"Mr. Jiajuku told me to memorize, and I memorized a lot of ancient texts, and I didn't understand a lot of ancient texts."

Ah Bing admitted that he didn't understand the deep meaning of this ancient sentence too much, and he suddenly remembered this sentence and recited it.

"Uncle Kangping, I'm so lonely." Ah Bing complained, "The United States is very beautiful, but it is also boring. ”

Li Kangping patiently persuaded: "When you go to an American elementary school, it will be more fun and fulfilling." ”

Ah Bing asked suspiciously: "Why do we learn English, but Americans don't learn Mandarin?" ”

Li Kangping explained: "When I went to the United States to study and make a living, of course I learned English. ”

Ah Bing asked again: "Why don't those ghosts come to China to learn Mandarin?" Why did my father study English when he studied in a Chinese school? ”

"You're young, but you're perceptive."

Li Kangping was speechless for a while, and he didn't know how to answer his nephew's torture.

"Your father went to a church school in China, and the school was run by the Americans, so your father studied English." Li Kangping said.

Ah Bing asked again: "Americans run schools in China, why don't Chinese run schools in the United States?" ”

"Ah Bing, you think about it all day long, are you thinking about these things?"

"Uncle Kangping, I won't ask, let's go into the house for dinner."

Li Kangping found that Ah Bing's child was precocious.

After eating at Li Chong's house, Li Kangping returned to his house and drafted a new thesis.

[Fundamental Issues in Quantum Theory.] 】

【. Plum. 】

[A characteristic feature of quantum theory is an acknowledgment of the fundamental limitations of our classical concepts when applied to atomic phenomena.] However, it is precisely because of this situation that we encounter some entangled difficulties when trying to use concepts borrowed from classical theory to formulate the content of quantum theory. However, it is still possible that the essence of the theory can be expressed in a public hypothesis. That is, any directly observable atomic process consists of an essential discontinuity element, or individual element, that is completely outside the classical concept and is expressed in Planck action quanta. This recognizable establishment implies the abandonment of the causal space-time indication of atomic phenomena......]

【…… Indeed, our usual spatial and temporal markers are entirely based on the idea of measuring tools. The interaction between those tools and the observed phenomena is negligible. As Einstein emphasized, any observation or measurement can be said to be ultimately built on the coincidence of two events at the same point in space and time......]

With the joint efforts of physicists from all over the world, physics is entering a new stage.

In order to usher in the new physics, it is necessary to make an objective and unbiased summary of the old physics.

Li Kangping's "Basic Problems of Quantum Theory" is a summary article.