The ups and downs of life in the Siheyuan

An old expert took a pen and paper and wrote down a series of formulas and handed it to Li Yuan.

"Young man, see if you can calculate this?"

Li Yuan lowered his head and saw that it was a differential equation, and said easily: "No problem."

He had anticipated today's situation, so he asked Hao Wei to have already written common mathematical modules such as differential calculus and integral modules.

Now just a quote is needed.

Open the file, search for the module while writing the program, and then reference it directly.

Ten minutes later, a not too complicated differential equation appeared on the computer screen.

After compiling, just press Enter to run.

The expression for its general solution appears on the screen.

The old expert was very excited, "Can you calculate partial differentials?"

"Mr., it's theoretically possible, but you need to write some basic mathematical models."

"That's great!" the old man whispered excitedly to the people around him.

Li Yuan only heard words such as heat conduction, thermal diffusion, thermal stress, etc.

Finally, Li Yuan brought up the pinball game, and everyone was immediately attracted.

For the first time, everyone saw that computers can produce dynamic graphics.

Seeing this, most people have inspiration for various application directions.

Some people get more excited the more they think about it.

. . . . . .

A few days later, the superiors organized several meetings and finally decided that the "Kaitian" computer would continue to be produced by Factory 700, which has a higher level of confidentiality.

The motherboard PCB is temporarily provided by the repair shop because the motherboard is a 4-layer PCB and other factories currently do not have this technology.

The chips are produced at the Mianyang base.

The monitor is provided by Jinmen Radio Factory No. 2.

Accessories such as power modules, keyboards, and mice are produced by Factory 700, and the entire machine is assembled in Factory 700.

Factory 700 continued to retain the name "Kaitian 6501".

From then on, Factory 700 started a magical journey.

In order to maintain confidentiality, production has been controlled and only new computers are provided to special agencies and the military.

Kaitian 6501 computer coincides with this year's National Day and is one of the most important achievements among all National Day gifts.

On October 10, Leader Xu came to the laboratory again.

"Xiao Li, there are two good news announcements today. Please gather some people."

After a few minutes, all the lab staff gathered in the hall, which seemed a bit crowded.

"Comrades, on behalf of the organization, I would like to announce two happy events to you.

The first thing is the change in the ranks of the main personnel of the laboratory.

Comrade Li Yuan, administrative level: senior, level 13, salary standard 155.5 yuan; technical level: deputy chief engineer, level 3, salary standard 240.5 yuan. The salary is paid at 240.5 yuan.

Comrade Gong Liming, administrative level: deputy division, level 15, salary standard 124 yuan; technical level: engineer, level 6, salary standard 154 yuan. The salary is paid at 154 yuan.

Comrade Huang Yan, administrative level: deputy director, level 15, salary standard is 124 yuan; technical level: engineer, level 6, salary standard is 154 yuan. The salary is paid at 154 yuan.

Comrade Xiao Zhiwu, technical level: engineer, level 7, salary standard 133.5 yuan.

Comrade Ai Xing, technical level: engineer, level 7, salary standard is 133.5 yuan.

Comrade Bi Yandong, technical level: engineer, level 7, salary standard 133.5 yuan.

Comrade Liu Yang, technical level: engineer, level 9, salary standard is 102 yuan.

Comrade Guo Jun, technical level: engineer, level 9, salary standard 102 yuan.

Comrade Wang Kai, technical level: engineer, level 9, salary standard 102 yuan.

Comrade Hao Wei, technical level: engineer, level 9, salary standard is 102 yuan.

. . . . . .

Other members have improved to a certain extent.

The biggest change among them is the newcomer Hao Wei. Because he completed the crucial operating system development, he was promoted exceptionally.

When leader Xu read out the upgrade list, bursts of applause continued to rise.

"Wow, the director may be the youngest deputy chief engineer!" Technician A said with emotion.

"Actually, according to the director's performance, even a member of the academic department cannot be given too much," Technician B said, feeling a bit dissatisfied.

"I agree with you," Technician C agreed.

. . . . . .

Leader Xu pressed his hands down, "The second happy event makes me a little envious. It's an inscription."

He said nothing more, but respectfully unfolded a banner: The merit lies in the present, and the benefit lies in the future.

Looking at the familiar cursive script, Li Yuan's mind suddenly roared.

After the others saw the title clearly, they became quiet for a while, and then cheered loudly.

Everyone pushed forward as hard as they could to get a closer look.

Li Yuan took the banner with trembling hands.

He really wanted to keep this banner as his own, but he was afraid of being beaten.

"Liu Yang, prepare a large piece of glass. I want to make a large photo frame to protect this precious calligraphy treasure.

Just hang it in the center of this wall so everyone can see it.”

Before noon, this 160*38mm banner appeared on the glass wall to the north.

Everyone stopped and looked at the banner for a long time.

Li Yuan did not stop this behavior because he was also one of them.

After the computer was successfully developed, Li Yuan gave everyone three days off, including Sunday, which lasted four days.

In the past four days, apart from sitting at Director Wang's house in the street, the rest of the time was spent walking around Kyoto with my wife and children.

This is to make up for the guilt of running around and working overtime without caring about family at this stage.

In the following days, Li Yuan was no longer as busy as before, basically working from nine to five.

The prototype of the flight control system has begun physical testing. This time it is led by Huang Yan, with Hao Wei as the main force. He will modify the control code according to the test pilot's requirements and test parameters.

Senior Brother Gong is leading the team to study inkjet printers.

Li Yuan formulated a new technical plan, and everyone continued to conduct in-depth research in their own technical directions.

It's okay to relax appropriately, but you can't lose your focus and goals.

He wants to build a most awesome laboratory to ensure that technology will always be far ahead.

In early November 1965.

The ground debugging of the flight control system is completed, and today is the day of the official test flight.

Fortunately, the sky was beautiful and it was a sunny day in Kyoto.

A brand new J-6 appeared on the runway of the base.

Li Yuan stood on the ladder and looked at the instruments in the cockpit of the aircraft.

At this time, the cockpit lacked many mechanical instruments and had many more digital tubes.

All indicator lights have been replaced by LED lights, which are much longer than previous light bulbs or tubes in terms of size and lifespan.

In order to allow test pilots to adapt to this new cockpit, the laboratory and the aircraft factory jointly developed a simulated cockpit.

The test pilots have been simulating on the ground for more than three months and are familiar with all operations and instructions.

At this time, the test pilot continued to test the tail control, engine idle state and so on.

Half an hour later, the test pilot said: "Gong Li, everything is normal, don't worry!"

"Pay attention to safety!" Li Yuan ordered and climbed down the ladder.

Everyone evacuated the runway, and ground staff kept giving signs that everything was okay.

The plane slowly slid onto the runway with a burst of roar.

The plane moved forward rapidly. After more than ten seconds, it jumped into the air and climbed rapidly.

"On the ground, everything is normal on aircraft 6501." After a burst of rustling, the test pilot's clear report came.

"Received on the ground, please follow the test flight procedures."

"6501 machine received".

Then, the aircraft launched various test flights in the air.

The regular items are completed quickly, and here are the most dangerous special items: maximum speed, minimum speed, mid-air stop and restart, stall boundary, etc.

Everyone on the ground clenched their fists nervously.