Chapter 12
Ever since seeing the students' rally and march, and knowing that a major battle would probably break out soon, Yi Hanxing couldn't help but feel a little anxious.
But it is not convenient to tell others about this anxiety.
Didn't Yu Fu and the others know there would be a war? Any discerning person, seeing Japan's actions, would not think they were pursuing peace. Ever since Hangzhou Bay was threatened, they knew that Shanghai would eventually come to an end.
Those who were not so clear-headed at most felt that they lived in the concession and were very safe, and did not need to worry about a falling out between Japan and Europe and the United States.
Yi Hanxing's anxiety lies in the fact that she clearly knows the relevant circumstances of the Battle of Shanghai, but because of the fictional world, she cannot be sure of the development of things, so the information she has is useless. She only knows that Shanghai and Nanjing fell in the end.
As for other situations, the protagonists of the Republican era literature at that time all entered the extra-story state, either running away to Hong Kong or to the United States, and the author did not describe them in more detail.
With the chronological text as a foundation, Yi Hanxing knew that the organization would win the final victory, but he was not sure about the specific circumstances of the other wars. He could only be in an anxious but helpless state.
Apart from anything else, Yi Hanxing didn't even know when the Japanese army would land and when they would fire their artillery.
Under such circumstances, in addition to completing Sun Cheng's tasks and helping the organization acquire talents in weapons, Yi Hanxing could only devote himself to studying, looking forward to serving the country after graduation.
Therefore, when designing the circuit diagram, Yi Hanxing was very serious. He not only wanted to have the opportunity to consult Sun Cheng specifically, but also wanted to take out some advanced practices that he remembered and ask Sun Cheng for advice.
Yi Hanxing incorporated into the overall circuit design of the building the leakage protection device and trip circuit breaker that have been used in modern times for many years.
There is no such thing as a circuit breaker in this era. Once the power goes out, it must be because the wires are broken. There is no circuit breaker designed to protect the circuit from overload. The circuit breaker will only be directly disconnected when the electrician is repairing it.
What Yi Hanxing did was to combine a tripping device and a leakage protector to make a leakage switch. When the circuit is overloaded or the insulation is damaged, it can automatically cut off the current, which can not only protect the lives of people who accidentally get electric shock, but also prevent the wires from catching fire.
Because no one has proposed this design yet, Yi Hanxing has no reference. He can only rely on his own knowledge of physics and a little memory to design such a device by himself. While designing the overall circuit, he also specifically draws the circuit of the leakage switch.
At first, Sun Cheng just walked around Yi Hanxing a few times, paying more attention to her. But later, when Sun Cheng stood behind Yi Hanxing and looked at her design drawing of the leakage switch, he quickly realized what the design was and couldn't help but be fascinated by it.
When Yi Hanxing's design was almost finished, Sun Cheng also understood Yi Hanxing's design ideas and couldn't help but clap his hands and said, "This design... is brilliant!"
Sun Cheng's words focused the attention of the thirty or forty people in the Physics Experiment Society on Yi Hanxing.
What did this freshman do that made Sun Cheng say it was amazing? Everyone thought so, and they couldn't wait to stretch their necks to read what Yi Hanxing wrote.
The members were still a little reserved, afraid of being accused of peeking at their classmates' designs. However, the president, as the examiner, did not have this concern. He immediately stood up and walked to Yi Hanxing's desk and carefully looked at Yi Hanxing's design.
Everyone heard Sun Cheng's praise, and Yi Hanxing was no exception.
However, Yi Hanxing was drawing the last few strokes, so he simply finished drawing the design, then stood up and said respectfully to Sun Cheng: "Teacher Sun, this is an idea of mine, I may need you to take a look at it." As he said this, he showed a shy smile.
Sun Cheng took Yi Hanxing's design and looked at it carefully. Instead of giving any direct advice as Yi Hanxing had expected, he said to the president, "We have plenty of time today, so let's discuss this design with everyone."
Since Sun Cheng said so, the president naturally would not object, so he nailed the four corners of Yi Hanxing's design draft to the wooden board used for display in the club so that all members could see it.
It was also because there were no electronic devices in those days, and teenagers had very good eyesight. Otherwise, if Yi Hanxing's design draft was posted, people sitting further away would not be able to see it clearly.
Sun Cheng also walked to the wooden board like the teacher and began to ask questions: "Everyone should understand this circuit diagram? Tell me what you think..." Sun Cheng said, looking at Yi Hanxing.
"Teacher, my name is Yi Hanxing." Yi Hanxing understood what Sun Cheng meant. He paused because he realized he didn't know the student's name halfway through. He thought that this was the disadvantage of not asking the new students to introduce themselves at the beginning.
Sun Cheng nodded upon hearing this and continued, "Tell me, everyone, what do you think is the purpose of Yi Hanxing's design?" As he spoke, Sun Cheng pointed to the leakage switch circuit diagram that Yi Hanxing had specially drawn.
"This is a switch." The male student sitting closest to the wooden board said, "In the overall circuit diagram of the building, how many main switches have been added?"
"No!" a classmate retorted, "The main switch shouldn't be like this, and there are switches elsewhere in the diagram. This design is specifically drawn to make the wires burn out directly when the current is high."
"What's the use of this design? Wouldn't it be easy for the power to go out?" some students were puzzled.
"Well..." Some students also saw the meaning: "When the current is high, it will directly burn out this small section of wire, and the wires in other places will be saved. The user will also know that they have just used a large amount of electricity. Be careful when using it."
“
"But when we have power outages now, it's usually not because of high electricity consumption, but because the wires have been chewed by rats or broken for some other reason. Isn't this design impractical?" a student asked.
"Everyone's questions are very good. After listening to the students' discussion, Sun Cheng smiled and said, "Regarding whether this is practical, let's not talk about the difference between the electricity used in our factory and at home, and not to mention that Europe and the United States have invented many electrical appliances in the past decade or so. Let's just say that currently, if one household in a building loses power, the entire building will lose power. With this design, it will be much more convenient.
"As for the details, let's ask the designer to tell us?" Sun Cheng looked at Yi Hanxing.
“Actually, the main purpose of my design is to provide overload protection and leakage protection, especially when someone accidentally touches a large amount of leakage, it can be disconnected in time, so that the probability of people being electrocuted is much smaller. Yi Hanxing was not a timid person, and he talked freely in front of everyone: “As for whether this fuse will melt the wires, I haven’t thought about it yet. I was just thinking of asking Teacher Sun if there is any suitable material or a more suitable design.
"Teacher Sun, if I have any questions about this design drawing, can I consult you in your free time?" Yi Hanxing asked.
"Of course. Sun Cheng nodded: "Then let me tell you about this circuit diagram first. When the activity is over, come find me and I will give you a list of books. You can see if there is anything you can read for reference.
When the class was over, Yi Hanxing asked everyone to wait for him outside the classroom. While watching Sun Cheng write the book list, he said to Sun Cheng with an unchanged expression, "Hello Comrade Tai'a, I am Ye Mang.
Tai'a is a famous sword in ancient China and a national treasure, which is very consistent with Sun Cheng's identity.
After hearing what Yi Hanxing said, Sun Cheng couldn't help but look up at Yi Hanxing's expression and said, "Hello, Comrade Ye Mang! You guys are really patient in intelligence work. I circled around you many times and you didn't react. I almost thought I recognized the wrong person.
After hearing what Sun Cheng said, Yi Hanxing didn't know whether to tell him that he was not a professional intelligence officer, and wouldn't it be too obvious to give a direct response in front of everyone?
Thinking of this, Yi Hanxing also said: "Comrade Tai'a, our subsequent communication is best carried out when it's just the two of us to avoid leaks. If there are any subsequent arrangements from the organization, unless it's an emergency, I will contact you. Please remember to come to school at least once a week.
"no problem.
Sun Cheng made an OK gesture.
When Yi Hanxing went out, Zhou Yuetong who was waiting outside couldn't help asking: "What did you say to the teacher? Did the teacher give you an OK?
Zhou Yizi also cast a curious look.
"I just asked if I could talk to Teacher Sun if I had any questions in the future. He said yes and then made a gesture." Yi Hanxing lied very calmly.
"I didn't expect our teacher Sun to be so lively," Zhou Yuetong said.
"Yeah, I didn't expect it either. I was shocked when I saw it just now." Yi Hanxing agreed.
Unbeknownst to many students, Yi Hanxing and Sun Cheng began their secret information exchange, and the organization's weapons development work also progressed differently because of this exchange.
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