Chapter IV Officials Begin to Develop Photocells

Zhang Zhimu, who was selected for the site of this paper mill, is very satisfied, the place is spacious, close to the Fen River, and the water and transportation are convenient. Zhang Zhimu suggested digging a bay by the river and building a wharf, so that the raw materials and finished products used in the paper mill could be easily transported in and out.

"Yes! We chose such a place because we wanted to build a large paper mill. Now the amount of paper used by our kiln gang people is almost the same as the amount used in the Ming Dynasty, which is still too valuable. In the future, the place we manage will be bigger, and paper will be used everywhere, and it will really not work without a large supply of paper. Lu Bingyi thought far ahead.

"After our paper mill is completed, we will build a paper mill in Baotou, there are a large number of reeds in Wuliang Suhai, and the thing will be long after cutting this year, and the paper can be said to be inexhaustible. In the future, we will use more places to use paper. Our bulk cement can be used as packaging in paper bags in the future. Zhang Zhimu has always been thinking about the reeds in Wuliang Suhai outside the Guan.

Zhang Zhimu and Lu Bingyi visited the workers and technicians who were planning and nailing wooden stakes at the construction site, and said goodbye to Fan Chengkun and returned to the kiln with Lu Bingyi.

As soon as Zhang Zhimu and Lu Bingyi got off the boat, they were sent by Chen Yufeng to the command center.

When he came to the command center, Zhang Zhimu saw that several giants in the kiln gang were here, and knew that something was wrong.

Chen Yufeng first introduced: "Zhimu, it seems that the group of guys from Taiyuan need to deal with it seriously. When we returned, we received news that the Commander of the Mission, the Political Envoy of Chengxuan, and the Prosecution of the Prison had broken into the original yamen with people in disregard of the dissuasion of our people, and had driven out our former office staff. Our people were not instructed to come with them. ”

As soon as he heard that this was already the case, Zhang Zhimu knew that weakness would not work, and if some tough measures were not taken against them, officials in other places would soon follow suit.

Seeing that everyone was waiting for Zhang Zhimu's opinion, Ouyang He said: "Mr. Zhang, my idea is that we should take the initiative. I wanted to borrow money from the emperor from us, and at the same time sent officials to enter Taiyuan to see it, and things were very contradictory. It must have been those courtiers who knew that the emperor had borrowed money from us again, and they also said for various reasons that officials must be sent back, and the emperor could not refuse. Otherwise, if the emperor wants to send someone back, he will wait until he borrows the silver. Therefore, we don't have to worry too much about these people sent by the imperial court. ”

"Even if the emperor personally sent the person, we can't be soft. But we need to do it in a reasonable and responsible way. Zhang Zhimu thought for a moment and said, "The people who notified us told the people who commanded the envoys, the political envoys who undertook the announcement, and the people who were sentenced to the procuratorial envoys to go to us to get a pass to enter and exit, and those who did not apply for a permit and broke in were immediately arrested and put in prison, and those who resisted the law by force could be killed on the spot and then displayed to the public." Send our men to monitor their every move. Send a regiment to strengthen the armed garrison of Taiyuan, and if they want to send troops into the city, resolutely stop them, and break in, they will be destroyed. ”

"Also, limit the number of people in their divisions to no more than ten in each division. We only issue them 10 passes, and they need to be carefully checked when they enter and exit, and each person must have the same ID and photo as himself before they can be released. Ouyang He added, "There are also places where we are not allowed to do anything like gongs and opening the way." If there is, the first dissuasion and warning, the second arrest and imprisonment, and repentance can be released. ”

"Huh! It's interesting, but I don't think I need to send an army over. This is our police business, and I'll just send some police. Anyway, I don't have any big deals, I'll go to Taiyuan to stay for a few days these days. Have fun with these guys. Yan Boju said, squeezing his little eyes.

Everyone thinks that it is too suitable for Yan Boju to go, because Yan Boju's prestige in Yaogang is there, and besides, with someone of his level there, he can make a decision immediately in case of trouble. After all, the people below are prone to scruples too much. Yan Boju also knows the bottom line of the kiln gang people, and some things can't be explained too clearly to the people below, Yan Boju knows how to deal with it. Besides, Yan Boju is the big boss of the police, so it is only right for him to go.

"Uncle Yan, it's best for you to go out in person. But you have to bring more people, if they force their way into Taiyuan, we can't suffer. Zhang Zhimu said.

"Don't worry," Yan Boju said: "Yang Jing's kid has set up a special brigade, there are more than 1,000 people, and it has been useless, I will bring it all this time." You don't have to worry about it, I have already told Yang Jing to notify the special brigade to gather, just wait for you to speak, and we will go to Taiyuan immediately. Can't give them time to deal with us. ”

"Good! Take care. Zhang Zhimu said.

Set a course of action, these things are nothing to the kiln people. You can see from everyone's expressions that they are all relaxed.

Zhang Zhimu said: "We are about to go west for more than a year, and in the future, all our work is to not let any factors affect our big goals." ”

The people of Yaogang unified their consciousness and walked out after the meeting, and at this time Gonggong Li was waiting outside.

Zhang Zhimu saw that he was not angry and said, "If you are for the silver, just wait for our letter." ”

"No, no, Zhang Dongjia, I want to say that I don't know what's going on with those officials in Taiyuan. I don't think the emperor knows what's going on, I've already sent a letter to the emperor to ask about it. Don't associate this matter with the emperor's money. ”

Gonggong Li explained, but he knew in his heart that in this way, the matter of borrowing silver would be even more useless. However, he happened to tell the emperor that it was some stupid officials who did not do things well, which affected the borrowing of silver from the kiln people. Gonggong Li knew in his heart that these officials and kiln gang people were hard, thinking that the kiln gang people did not dare to do anything to them, and they were simply looking for death. If the kiln people don't kill a few of them, they won't be honest. And it is safe to say that the kiln gang people killed them for nothing. But Gonggong Li couldn't tell them, because they were all sent by those civil servants in the court, and they were originally enemies with them. Those officials didn't dare to contact their husbands either, because if they did, they wouldn't be able to tell, and if they were thought to be colluding with the eunuch party, they would be ruined.

"There's nothing big going on in Taiyuan, isn't it just a few officials? We never said that the officials would come back. As long as they don't interfere with our governance of the place according to the emperor's requirements, they are willing to stay with us, but they need to respect our rules. Zhang Zhimu said it lightly.

"What? The officials sent by the imperial court must abide by your rules? Although Gonggong Li didn't like those officials, his nose smoked when he heard Zhang Zhimu's words.

"Yes, we govern these places, and we can't do it without rules." Zhang Zhimu said, "If the prince violates the law, the common people are guilty of the same crime." No matter who you are, you have to follow the rules. You don't have to worry about that. ”

After speaking, Zhang Zhimu ignored Gonggong Li and went back to his office.

Looking at Zhang Zhimu's back, Gonggong Li was itching with anger. originally wanted to please Zhang Zhimu, but people didn't take it seriously at all. Gonggong Li thought about it, too, who does Zhang Zhimu care about now, just those few officials who don't know whether they are alive or dead, people don't pay attention to them at all. If it weren't for the fact that he still had to give the emperor a little face, he would have pulled it out and cut it a long time ago.

Zhang Zhimu, who returned to the office, had long since stopped thinking about Taiyuan, and now he was concerned about Yangchang and their oscilloscopes, because with those things, many things could be continued.

Zhang Zhimu picked up the phone, wanted to call Yangchang's phone, and asked, "Yangchang, how is your oscilloscope progressing?" ”

"It's been a few months, and it's not going to work. But the whole screen has a green glow. Yang Chang said on the phone.

"The whole screen is green, which means that the electrons have been emitted, and the screen is green. The entire screen is lit, indicating that the focusing circuit is not working. You have to increase the voltage difference between the first anode and the second anode, and then try again. Zhang Zhimu immediately judged what the problem was.

"Okay Mr. Zhang, let's try as you say." Yang Chang said: "There is another problem, our shortwave radio reception is always unstable, and we found that shortwave voice communication also has such problems. ”

"This is because shortwave communication is reflected through the ionosphere, which is unstable, and the reflected signal is also unstable. You'll need to add an automatic gain compensation circuit to the circuit. Zhang Zhimu said, "This circuit can make your receiver reduce the gain when the signal is too strong, and increase the gain when the signal is too small." ”

"Auto-gain circuit?" Yangchang didn't understand it again.

"Wait! I'll draw you an automatic gain compensation circuit. Zhang Zhimu said.

Now Zhang Zhimu really can't come up with the automatic gain compensation circuit all at once. Because I used the circuits of current amplifiers in the past, I need to think carefully about using tubes now.

Putting down the phone, Zhang Zhimu seriously recalled the automatic gain compensation circuit of the linear amplifier he had engaged in before, and then drew a circuit of an electric tube according to its principle. After drawing this circuit, Zhang Zhimu thought again that Yang Chang should be familiar with their records and tape recorders. You should also help them improve it and make the noise in their recordings even lower. I also thought that Qingfengzi's movies also need dubbing. Yang Chang's tape can already record, just use tape recording technology and add a tape to the film. But the tape is too easily damaged, so it is better to switch to an optoelectronic one. However, the use of photoelectric cells also needs photocells, which requires the development of photocells. However, for the kiln gang people, it is not very difficult to engage in electron tubes and photoelectric tubes. If you should make up your mind, you can do it, and you will need it again in the future anyway.

The next day, Zhang Zhimu hadn't sent the circuit diagram to Yang Chang and them, so Li Yunhe and Duan Jingzhong came to find Zhang Zhimu together.

As soon as Li Yunhe entered the house, he said, "Mr. Zhang, let us go if there is no urgency!" ”

"What's the matter with you kid?" In fact, when Zhang Zhimu saw Li Yunhe and Duan Jingzhong coming together, he guessed that it was the asphalt pavement that they had built.

"Let's go, Mr. Zhang, take a look at our asphalt road." Duan Jingzhong didn't have time to joke.

"Okay, let's take a look at your asphalt road first." Zhang Zhimu came out with Li Yunhe and Duan Jingzhong as he spoke, and came to the asphalt pavement they were doing experiments to repair.

This is a section of road more than 50 meters long and 10 meters wide, and the road surface is sprinkled with yellow sand that has not yet been swept away. However, it looked very smooth, Zhang Zhimu stepped on it in the past, and the road surface was completely hardened.

"Great! Your roads are very well repaired. Zhang Zhimu turned back to Duan Jingzhong and said.

"We didn't expect the asphalt pavement to be so good." Duan Jingzhong also said sincerely.

"In the future, the asphalt will be enough, and we will build all the roads in the kiln to be like this. It's just great, so that the maintenance of the road surface is much easier, and you don't have to worry about it when it rains. Li Yunhe said.

"Speaking of rain, I also noticed a problem with your pavement. Your roads are too peaceful, and it is not easy for them to flow out when it rains. In the future, the sides of the road you build should be slightly steeper to let the rainwater flow out. Zhang Zhimu said.

"There's already a lot of asphalt at the smelter. Are we building a section of asphalt pavement in Yaogang? "Li Yunhe is an impatient.

"I think we're going to make asphalt on both sides of the tram road from Yaogang to Xiurong, and the road surface should be able to pass three horse-drawn carriages. The side of the road should be inlaid with stone strips to make the road teeth, and there should be a sewer under the road, so that the stagnant water on the road surface can flow away through the sewer. Zhang Zhimu said.

"Huh! If so many roads are built, there will not be enough asphalt at the smelter. Li Yunhe said.

"Then fix one side first, and then repair the other side when there is asphalt." Zhang Zhimu said, "Director Duan, can your people draw it out?" ”

"Yes, the road to the cement plant has been repaired, and the railroad is waiting to be laid with steel tracks. With a few rollers, the efficiency of road repair can be increased several times. Duan Jingzhong said.

"That's great," Mr. Zhang said, "and you bring people over for construction as soon as possible." In addition, Li Yunhe, you go and invite Mr. Lu and let him see this road as well. I also coordinated with Mr. Lu that the people who built the tram lane should not conflict with Duan Jingzhong's people, and it was best to combine the side of their tram with the asphalt road. ”

"Okay, I'll do that." Li Yunhe said.

"When will the train be opened?" Zhang Zhimu asked.

"How can it be so fast," Li Yunhe said, "why do you want to start spring next year." However, the tram lanes and cables will be able to be completed before the winter. ”

"Still have some problems with the train?"

"Yes! Safety must be ensured, and this is a voltage of more than 400 volts. Safety comes first. Li Yunhe said.

"In fact, there is no need to worry too much, because the car body and the ground are connected together, and the rail and the carriage are all with the same potential as the ground, and the safety is guaranteed." Zhang Zhimu knew that they were still a little afraid of electricity.

"It's up to Li Di and them to do this. The locomotive factory has already built the carriages, and it depends on the part that is waiting for them to be electrified. Li Yunhe said.

"The electric part shouldn't be a difficult task, our trams don't need to change speeds, just start and stop. They think too complicated. Zhang Zhimu said, but he wanted to try not to disturb them and try to let them complete the task by themselves.

After Zhang Zhimu finished reading the asphalt pavement, he came directly to Yang Chang's office. Zhang Zhimu handed over the circuit diagram he drew to Yang Chang. Yang Chang said: "Mr. Zhang, you can tell us about this circuit, otherwise we will spend a lot of time studying this matter after you leave." ”

"Okay! Get all of your men. Zhang Zhimu said.

When Yang Chang's people arrived, Zhang Zhimu drew a circuit diagram on the blackboard and explained the principle of this automatic gain circuit to them. This circuit is simple, just an idea. It's easy for everyone to accept.

After talking about this, Zhang Zhimu said: "I see a few people who are engaged in transistors. I will take the opportunity of today to assign you another small task. ”

The people below were boiling all of a sudden, and they all knew that the tasks assigned by Zhang Zhimu would generally bring about a lot of changes in application.

Everyone was silent for a while, and Zhang Zhimu said: "The task I assigned to you today is to develop photoelectron tubes. ”

Zhang Zhimu turned around and wrote a few words on the blackboard.

He added, "Photocells are actually very simple. The typical structure of a photocell is to vacuum the spherical glass shell, coat the inner hemisphere with a layer of photoelectric material as the cathode, and place a small spherical or small ring metal as the anode in the center of the sphere. A forward voltage is added between the two poles, so that when there is light irradiation, the optoelectronic material produces electrons, and a beam of photoelectron current will be formed, so that the conduction between the two poles will be on, the light will disappear, and the flow of photoelectrons will also disappear, so that the two poles will be disconnected. This optoelectronic material can be alkali metal mercury, gold, silver, potassium, sodium, cesium, etc., which is better, you need to test. If the photoelectric current is too small, we can amplify it with a triode. ”

After Zhang Zhimu finished speaking, it was obvious that the people below were relieved. None of them seem to think it's anything difficult. Zhang Zhimu knew that these people were no longer the same people as they were two years ago. They have all survived a difficult process and are already experts in the electronics industry.

Zhang Zhimu continued: "You may ask, what are we doing with this photocell? Let me tell you, this photocell can reflect the intensity of light, that is, turn the light signal into an electrical signal. With this feature, we can control an electric light that automatically turns off at dawn and lights up when it gets dark. There is another one, which we are going to use soon, and you may have seen the introduction of the movie in Science Magazine, and many people have already seen the movie in person. But that kind of movie only has images and no sound, we want to turn the sound signal into the light signal on the film film, and when the movie is projected, the light signal is synchronized into an electrical signal, and the electrical signal drives the speaker to release sound. ”

After a discussion below, Zhang Zhimu said: "Do you guys who are engaged in recording say 'you can use tape recording'?" I said yes, but the magnetic particles come off easily and are not the best way. Let's first develop the photocell, and then we will study the problem of movies with sound. ”

According to the usual practice, after the lecture, Zhang Zhimu discussed some issues with everyone. At this time, everyone asked not necessarily the content of the current course, some people asked: "Mr. Zhang, my tape recorder and record have been used for a while, it should be said that the effect has been greatly improved, but we all feel that the progress is not very big, at least there is no breakthrough." I don't know what Zhang Zhimu suggests? ”

Zhang Zhimu originally wanted to tell them about Dolby's recording technology, but at this time, a phone call came, and someone asked Zhang Zhimu to answer the phone. Zhang Zhimu, who was about to continue lecturing, didn't want to pick it up. The man was anxious and said, "Mr. Zhang, I don't want to look for you." But the caller said, 'Tell you that Mr. Yan killed someone, and you can answer it.'" ’”

When Zhang Zhimu heard this, he was stunned, so he had to say to everyone: "About the recording, I'll find an opportunity to tell you about it in the future!" ”

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The Song army occupied Hokkaido, and Yuankou landed on the island of Kyushu. Opening up the Japanese battlefield. --Progress of "Memories of the Southern Song Dynasty".