The train driver in the courtyard

In the maintenance workshop.

Zong Xianfeng took the list of materials and didn't pay much attention to it at first. He picked up a pen and prepared to calculate.

When he saw the “ultraviolet full-band lamp”, his face turned ugly.

This is a special lamp tube filled with mercury vapor and needs to be used with a starter.

It is often used in laboratories or hospitals to disinfect surgical operating rooms.

Because ultraviolet lamps are very expensive and difficult to produce, currently only a few manufacturers in China can produce them, including the Beijing Geological Instrument Factory, Beijing Second Optical Instrument Factory, Modu Leici Instrument Factory, and Xintian Optical Instrument Factory.

The application reports of many hospitals have been delayed for more than half a year.

In many hospitals these days, thermometers are the only medical equipment, so there are no extra ultraviolet lamps to make electric fly traps.

Li Aiguo said slowly: "Let's not talk about the light tubes for now, the plastic used in the plastic shell is also very expensive now.

The amount of plastic produced in China every year cannot support the production of hundreds of thousands of fly-killing lamps.

And electricity.

Fly killer lamps consume electricity. The electricity consumed by one fly killer lamp every day may not be a big deal, but the electricity consumed by thousands of fly killer lamps will be a scary number.

Although the fly-catching board looks ugly and doesn’t seem to be that high-tech, it only costs tung oil and ink, does not consume electricity, and is easy to use.”

In later generations, the technology of fly-killing lamps and mosquito-killing lamps has become mature.

There are even high-tech technologies such as ultraviolet light + photocatalyst, ultraviolet light + carbon dioxide, electric shock + photocatalyst, electric shock + carbon dioxide, etc.

But it's no use.

First of all, the ultraviolet light is very weak, and flies will definitely not run towards the light during the day.

Flies are blind at night.

When it gets a little dark, it hides and doesn't fly around at night.

As for mosquitoes, there is no need to mention them.

No amount of ultraviolet attraction is as pleasant as a person covered in sweat.

This is also the reason why fly killer lamps and mosquito killer lamps are rarely used in households in later generations.

Of course, these involve biological issues, and Li Aiguo did not talk about them directly.

Zong Xianfeng also understood at this time and looked depressed.

"I didn't expect that the fly killer developed using scientific knowledge is worse than the traditional method."

"A traditional method? A fly trap is not a traditional method. It uses the attraction of biological pheromones to flies, which is considered high-tech biology. In addition, the process of boiling glue involves the polymerization model of organic macromolecules."

Li Aiguo was not exaggerating.

Everything in this world, if studied carefully, will involve high technology.

Even the simplest thing is throwing stones.

This kind of thing, which even children can do, requires the brain to use information such as vision, motion perception and muscle memory to make rapid calculations and adjustments in order to accurately control the force and angle of throwing the stone.

This involves human neurology, human mechanics, aerodynamics, and even if the posture of a stone in the air is simulated using a wind tunnel, it also requires knowledge of highly nonlinear problems and flow of complex structures (such as turbulence).

You can call this a home-grown method?!
Zong Xianfeng was stunned, but had no way to refute. After all, what Li Aiguo said was the truth.

The workers' eyes widened when they saw the fly trap. Wow, they didn't expect that what we are researching is high-tech.

Li Aiguo went on to say: "It doesn't matter if it's a home-grown method or a high-tech one, as long as it can catch the flies it's a good method."

Zong Xianfeng also realized his mistake at this time, and sighed: "It is just as you said, the electric fly trap is really useless."

"Not really."

"Where will it be used?" Zong Xianfeng became excited.

Li Aiguo analyzed: "Fly traps are ugly after all. Electric fly traps are much more upscale and can be placed in conference rooms of large units or in places like the Friendship Hotel where respectability is important. In this way, the disadvantage of high cost can be avoided."

Zong Xianfeng thought about it carefully and realized that it was true. Li Aiguo then drew a blueprint of a mosquito trap and fly trap of later generations and gave it to Zong Xianfeng.

"We can't get that much material here. Go back to the Railway Research Institute and use the equipment there to make the electric fly trap in your spare time."

Zong Xianfeng picked up the drawing and took a look at it.

Unlike his simple electric fly trap idea, the electric fly trap on this drawing takes all aspects into consideration.

He nodded heavily: "Brother Aiguo, don't worry, I will go back now and make the sample according to the drawing."

After Zong Xianfeng left, Li Aiguo put his energy back into the preparation of glue.

Time unknowingly came to evening.

Director Zhang poured a cup of tea for Li Aiguo and said with concern: "Driver Li, let's do the rest of the work tomorrow. I have reported the new formula of the mouse trap, and the locomotive section is collecting materials. We will have a tough battle tomorrow."

"That's right. Old Zhang, you should let the workers go back and rest. This kind of work cannot be completed overnight. Don't overwork yourself."

"Don't worry. The logistics department just gave each worker a one-dollar bonus. These guys are anxious to take the money home to be with their wives and children." Director Zhang said as he helped clean up the test bench.

Wow, the bonus was given out so quickly, it seems that the maintenance depot really doesn’t treat the workers as outsiders.

Like the other workers, Li Aiguo also received a one-yuan bonus. He signed his name, put the money in his pocket, and rode his bicycle out of the locomotive depot.

Halfway.

Li Aiguo turned into Daoxiang Village and bought two kilograms of glutinous rice cake, which he put into two bags. He left one bag for Chen Xueru and gave the other to Aunt Liu and He Yushui.

Aunt Liu ate the fragrant, crispy and soft cake and scolded, "Aiguo, don't spend money recklessly next time. You still need to save money to raise your children. I am an old woman, half buried in the earth, and it is a sin for me to eat such delicious snacks."

He Yushui took a piece from the bag and stuffed it into Aunt Liu's mouth, saying with a smile: "Auntie, don't worry about Brother Aiguo. He is a train driver and a railway man. When the time comes, your sister-in-law will have a baby for free and will receive subsidies. When the child goes to school, there will be no money."

"You know a lot, little girl. Yu Shui, what kind of job are you going to do in the future?"

Chen Xueru had not come back yet, and Li Aiguo was too lazy to cook, so he started chatting with Aunt Liu and He Yushui.

He Yushui tilted her head and said, "I want to be a textile worker. The salary is high and I can wear beautiful clothes."

These days, textile workers are indeed the most popular job in the capital.

Just give it a few decades and things will be very different.

Li Aiguo said: "Yushui, don't you want to go to college?"

"I do, but..." He Yushui stopped talking halfway.

Her grades are average and her family is not well off.

Aunt Liu then grabbed He Yushui's hand and said, "Yushui, you are my biological daughter. If you want to go to college, I will support you even if I have to sell my dowry."

Hearing this, He Yushui burst into tears and nodded with a sob.

Nowadays, many families favor boys over girls. Even if a girl can get into college, they will not let her go.

the reason is simple.

My daughter will get married in the future anyway, so it would be better for her to go to work in a factory early so that she can earn more salary for a few more years and subsidize the family.

Li Aiguo said with a smile: "Yushui, do you still remember Chen Ziliang who taught you math last time? If you really want to improve your grades, you should take Chen Ziliang as your teacher."

Although Chen Ziliao's teaching method is wrong, he is a man who is about to become a great mathematician after all.

He Yushui studied with him for several years, and if he didn't get a perfect score in mathematics in the college entrance examination, it would only mean that He Yushui was a blockhead.

"Brother Aiguo, thank you for your help." He Yushui has made up his mind now.

"No trouble, in my opinion, you are almost my sister."

Li Aiguo was just about to leave the Liu family when a voice suddenly came from outside.

"Damn you Nan Yi, you're going to kill me!"

(End of this chapter)