A nation's industrial development begins with junior engineers.

I picked up the artificial ruby ​​and held it up to the light. Its dazzling red color made the little boy slightly lose his focus.

If you put this industrial product at an auction in Hong Kong now, and give it a nice backstory, you could probably swindle a lot of money from it.

Haha, it's just like the antique hype in later generations...

However, in the hands of the industrial dog, it has only one mission!

Laser medium.

Add the pump source, optical resonator, and mirror, and here it is! The laser emitter!

Hmm, how about it? Don't these terms sound pretty high-class?

Would it be better to replace the pump source with a xenon lamp?

Yes, it's the kind of xenon headlights that the salesperson at the dealership tries to sell you when you drive your car there. Jiangxia uses these kinds of headlights.

Remember that lighting factory manager who got kicked out? This thing was created by them; it was part of the lighting project for the table tennis championship venue.

As for the optical resonator, hmm, that sounds very academic, doesn't it? Think of it as that cone-shaped, silver thing in the front of your flashlight, and you'll get the idea, right? By the way, that thing in a flashlight is called a reflector.

However, the flashlights of later generations were made of aluminum alloy, while the one in Jiang Xia's hand was a bit more advanced. It was made of quartz glass, with a layer of silver plating on the surface, and the whole thing was tubular, just like the inner liner of a thermos bottle that goes all the way to the bottom.

Hehe, sometimes high technology is just that simple and unpretentious.

Everything is installed and powered on!

Gaba!

The xenon lights came on, and the small bulbs illuminated Jiang Xia's office completely.

Unfortunately, the expected red beam of light did not appear.

"You dog's eyes are going to go blind!"

The little brat quickly closed his eyes and turned off the light. Even so, the xenon headlights were still so bright they almost brought tears to his eyes.

What's going on?

Jiang Xia closed his eyes and thought for a moment. It must be that the distance and position of the reflector were not adjusted properly.

After all, symmetrical confocal cavities and such are quite troublesome. Let's adjust them little by little. Before making any adjustments, I'd like to borrow the welder's big sunglasses to wear.

The office door was wide open, and the strange-looking machine was just sitting there on the table, with even the blueprints scattered haphazardly in various corners.

Hehe, this scene is pretty good, isn't it? I wonder if anyone has fallen for it?

Wait, how long ago was laser invented?

However, it shouldn't be called laser. That's a word our predecessors coined. The full name of this thing should be LASER. See, all the letters are capitalized, right?

That means this English word didn't originally exist; it's just an abbreviation.

The little brat's mind started churning again.

I didn't study history well. I only remember that this thing was invented around the 60s, and it was invented by an aircraft company. Does that mean the title of "world's first" is no longer valid...?

Or maybe we should ask Professor Deng later? He should still be keeping up with high-energy physics, I guess. I just don't know if we can still get through to him on the phone…

As they swayed along, two guards suddenly appeared behind the little boy.

Strolling through the factory area at night, the cold night wind seemed like a restless child, trying to sneak into one's arms, but was overwhelmed by the steaming heat of the factory and defeated.

Outside the steel rolling mills, a layer of white mist, like a delicate veil, cleverly concealed the heat within. Yet, the bustling atmosphere could not be hidden; it seeped out in wisps, disrupting the chill of the winter night.

The processing workshop in the distance resembles a city that never sleeps. The bright lights illuminate the busy figures clearly. Those figures are like agile paintbrushes, freely splashing paint on the huge canvas of industry, outlining a vibrant picture of hard work and struggle.

The little cannon shuttled merrily, its single eye flashing with a persistent light. The plopping sound was like a little work tune it was humming, as it carried various raw materials to different workshops without stopping.

Then look at that 500-ton hydraulic free forging machine. The crisp, clean "bang bang bang" sounds of impact are like the drumbeats of the times, pounding the melody of industrial progress and making the land beneath our feet feel excited.

Under the streetlights at the workshop entrance, several workers wearing rattan safety helmets were arguing heatedly, their faces flushed and their gestures exaggerated: "No! I absolutely disagree! This part is marked on the blueprints. If there's a problem, we can report it, but this crude solution is unacceptable!"

One of them said the above statement with firm conviction.

Hey, isn't this our level 8 welding master?

As he approached, Jiang Xia offered a cigarette: "Master Liu! Can I borrow your sunglasses?"

Without hesitation, the master welder pulled out a small bag wrapped in a towel. After opening it three layers deep, a pair of all-plastic, dark sunglasses appeared before Jiang Xia's eyes.

"Just leave it at the workshop entrance after you're done, and I'll pick it up myself later!"

"By the way, what are you two arguing about? It's so heated..."

"Tsk, it's not us, it's him!" Master Liu said, pointing to the young man beside him. When the young man saw Jiang Xia walking over, he quickly lowered his head for some reason.

"He told me to weld these screws on, but I just don't feel right. If they're welded shut, how will we maintain the equipment in the future? Look, this part, according to the drawings, is clearly an inspection point..."

As he spoke, Master Liu pointed to a blueprint at Jiang Xia and said, "By the way, you haven't left work yet?"

"No, it's been a long time since I've had late-night snacks from the cafeteria. Now that I'm leaving, I won't be able to eat them anymore. What's wrong with this punch press?" Jiang Xia looked at the blueprint, which was a punch press maintenance diagram he had drawn himself.

"It's nothing, the young man just wants to slack off!" Master Liu patted Jiang Xia on the shoulder and glanced sideways at the young man wearing gloves beside him.

Hey there, old friend! It's you, Comrade Xiao Jia! Even if you lower your head to your chest, your unique charisma still makes you stand out.

"Comrade Jia Dongxu, is there anything wrong with the use of this punch press? The screws here cannot be welded. During routine maintenance, you need to remove the screws and check the lubrication inside..."

Yes, there should be a viewing window on the punch press to observe the lubricating oil level. But Jiangxia can't get their hands on tempered glass or anything like that, so they have to use a dipstick to check it daily.

However, due to the excessive vibration of the punch press, the bolt would come loose from time to time and needed to be tightened manually.

Is this troublesome?

"Heh heh," a coworker scoffed. "Jiang, don't pay him any mind. He's a picky eater. He keeps complaining about his hands hurting and wants to switch jobs. After all that, he ended up on the easiest punch press, and he can't even apply lubricant..."

Okay, if you don't understand the details, it's best not to start a conversation rashly.

With Liu's help, Jiang Xia escaped the source of the trouble.

Before leaving, noticing the gloves Xiao Jia was wearing, I couldn't help but add, "Comrade, you generally shouldn't wear gloves when operating machine tools. It's fine if you wear gloves to move things when the machine is stopped..."

Seeing Xiao Jia with his head down, I couldn't tell if he had listened at all. Well, I've done my best; whether he listens or not is up to him.

"Come on, Xiao Jiang, let me show you a little gadget. Let me help your Uncle Liu take a look at this design..."

"Hey, Uncle Liu, that's amazing! What great thing did you design?"

"It wasn't me, it was my new apprentice. He's quick-witted! He's come up with a new type of bolt that's supposed to be better than the ones we use now! I was just about to apply for one at the factory! And since I ran into you, could you take a look?"

Seeing the look in Master Liu's eyes when he mentioned his apprentice, Jiang Xia's heart softened immediately.

That gaze is so familiar...

Teach a little, help a little, lend a hand, right?

Master, I miss you...