A nation's industrial development begins with junior engineers.

I glanced at my watch. Tsk tsk, it's already 9 p.m. and Professor Guo only just resolved the signal interference issue?

"Hehe, how about that? Teacher Guo can download a 10,000-word document in less than five minutes. Much faster than that telegram, right? Your radio station has been working all afternoon, and the amount of data it sent is barely this much!"

No wonder the little ahoge was so smug.

Based on current Chinese character encoding, 10,000 characters would be less than 30KB. With an optimized modem's transmission rate of 1600 bits per second, the transmission could theoretically be completed in less than 300 seconds.

And what about the telegrams? Look over there, they've been busy since noon and only just stopped. The telegraph operator's fingers must be cramping up!

Thinking of this, Jiang Xia rubbed his wrist; his hand ached from drawing all afternoon…

"Uh, no telegram sent, never mind, it's a small matter. But as for the transmission, it took five minutes to send the remaining 10%!" Teacher Guo's voice came from the other end of the phone, breaking Jiang Xia's reverie.

"Huh? That shouldn't be the case, why is it so slow?"

"Tsk, guess what material my phone line is made of?"

"Copper, what else could it be!" Jiang Xia answered without hesitation.

"Copper-clad steel..."

Jiang Xia was taken aback, covered the microphone, and turned to look at Lao Wang: "Is your dad that poor? Forget about coaxial cables, you didn't even have symmetrical cables?"

"Pah! It's good enough that there's even a wire to run across! And even that, we still have to have people standing under each utility pole! And what's with the coaxial cable? Huh? What's a coaxial cable?"

Jiang Xia rolled her eyes at him: "I only know the name. It seems to be composed of a central conductor, or inner conductor, and a circular tube conductor surrounding it, or outer conductor. The axes of the central conductor and the circular tube conductor are the same, hence the name coaxial cable. You want to ask me how to make it?"

"Don't slaughter sheep..."

Then Jiang Xia continued to discuss data transmission issues with Teacher Guo.

Old Wang, however, was more cautious and carefully noted down what Jiang Xia said. As he stuffed the notebook into his pocket, he patted it with his hand, saying, "Hehe, old man, if you don't pour me a drink, I'm not showing you this!"

Seeing Jiang Xia and Teacher Guo chatting happily, Old Wang got up, closed the window, went out of the room, lit a cigarette, leaned against the wall, and stood there quietly.

"Xiao Jiang, can this data be encrypted?"

"Of course you can, just like our secret reports. But I haven't gone into that area in depth. I heard that the Academy of Sciences has a special department for it. If you want encryption, you can ask them for an encryption method."

"Just integrate it into the program, encrypt it automatically when sending, and decrypt it after receiving!"

"By the way, don't come to me about this, I still want to go ice skating at Shichahai!"

"Haha, good, good."

"However, encryption is really unnecessary, isn't it? The conversion between analog and digital signals in a modem is something those stupid spies can't understand."

"Don't think you're the only smart one! We have plenty of geniuses! That equation you spent two days working on with Big Yellow, someone could solve it in one night, believe it or not?"

Perhaps feeling that Xiao Dai Mao was getting a little too cocky, Teacher Guo decided to give him a little nudge.

"Uh, not surprising. Chinese people are full of ambition. I've never been good at partial differential equations anyway. But who is this person? Don't tell me it's Professor Hua..."

"His name is Jinzhen, and he's a good kid. Hmm, I'll apply to see if you can get in touch with him and help him out!"

Teacher Guo spoke those last few words very softly.

"Jin Zhen? A girl? Helping?" Jiang Xia thought for a moment, then thought, "Hey, it's probably the same question as 'Teacher Qin'."

It doesn't matter, he's very experienced with this kind of thing now.

After casually agreeing, Jiang Xia began to earnestly persuade Teacher Guo not to carry materials around all day, but to use the internet to transmit materials directly.

Saving time spent on the road might lead to some remarkable achievements.

……

Just as Jiang Xia was putting his linguistic talents to good use, Professor Yuan Jiu had already returned to the Academy of Sciences, gathered a group of people, and begun to discuss the centralized control of the "palace" control center.

"Teacher, where did you find this blueprint? Using a solenoid valve on just one car door is a bit extravagant. But I think the anti-pinch function on the blueprint is worth promoting..."

A young researcher shook his still red and swollen hand and said somewhat sullenly.

"That's not all. Look at the structure here. This should be a way to manually open the car door, right? Interesting. There's a shut-off valve here. So, you can manually operate the cylinder to open the door after cutting off the air supply?"

"Teacher, teacher, doesn't this violate the principle of single control circuit?"

"Nonsense! This is called system redundancy; it's a procedure for emergency situations..."

"However, solenoid valves are only produced in small quantities in Shanghai right now, and they're quite large. Will they fit in here...?"

Seeing his students discussing so enthusiastically, Professor Yuan Jiu felt very gratified.

"As expected, concrete projects are still needed. You can't teach good students by just talking theory all day long!"

"Alright, let's divide into groups, each person responsible for controlling one function, and see if you're just all talk or if you really have the skills..."

"it is good!"

Inside this small automation research institute, everyone was in high spirits.

An elderly man wearing glasses happened to be patrolling the area and, seeing this, became curious. He gestured to his secretary: "I don't recall assigning any tasks to the control center recently. What have they been busy with?"

The secretary, with a serious expression, flipped through her notebook: "Indeed, the task hasn't been issued yet, because someone beat us to it with the centrifuges."

As they spoke, the two exchanged a glance, and a smile crept onto their faces.

The secretary straightened her expression and continued her report: "But Professor Lu has a long-term research project. In accordance with the spirit of the department committee meeting, Professor Lu proposed to address the objective problem of the Automation Department students' weak foundation in basic courses by using professional courses to drive the remedial learning of basic courses."

"Perhaps, Teacher Lu is tutoring these students!"

"Oh! That must have been hard work. Make a note of it and remind me to call Comrade Jiang Xia tomorrow."

"Yes! Has the leader issued any new tasks?"

The old man waved his hand: "Remind me to go and mob; whales are a good thing. They've been busy in the West Sea for so long and haven't even finished processing those four fish..."

After thinking for a moment, the old man sighed, "That brat, what kind of spell did he cast on the team? Back then, I swallowed my pride and offered to help, all I got was a batch of beans..."

The secretary gave an awkward laugh, unsure how to respond.

Let's just keep quiet.

"By the way, does the cafeteria have anything to eat? Bring up something hot, we can't let these little darlings go hungry!"

The secretary agreed and quickly disappeared.

The old man slowly walked into the small room of the control center and peeked at the blueprints in their hands.

Ok?

The familiar process requirements are listed on the right, along with the familiar heading: "A method based on..."

"What has that brat gotten himself into this time?"

The sudden sound startled the researcher who was engrossed in his work.

Upon seeing the old man, Teacher Yuanjiu patted the blueprints with a smile: "I'm going to take on this system task, which will be a good opportunity for the students to practice."

"Oh, right, you took Shousong to see him today. So, what did that kid think about having someone by his side?"

Teacher Yuanjiu was a little embarrassed, but after looking at the blueprints, he was also excited. It seemed that he hadn't finished half of the tasks assigned by the organization.

When organizing something, the reasons for doing it must be clearly stated; forcing things will never work.

However, Jiang Xia didn't seem to be resistant at all; on the contrary, she seemed quite excited.

So, this matter is settled then...

Yes, Jiang Xia was indeed quite excited. With his peculiar thought process, he was experiencing a strange sense of pleasure in digging a deep pit for future generations of students.

However, this can be seen as paving a broad road for the development of automatic control. As long as we follow the road, things will not go wrong.

Taking detours? Not a chance! Overtaking on curves, feeling your way across the river – Jiangxia loves this kind of maneuvering now.