A nation's industrial development begins with junior engineers.

"So, Dr. Lan Ying, isn't that simple? What's the appropriate speed for this seed crystal rod?"

"Hey, Xiao Jiang, you've really got it!" Dr. Lan Ying circled around the lifting transmission device that Jiang Xia had just assembled, looking at it several times.

"Keep the speed between 1 and 10 millimeters per minute. This will ensure the best crystallinity of the melt during solidification!"

"Wow, your machine is so small! It's much smaller than the one I used abroad. The interface fits perfectly into the iridium crucible, so there won't be any gaps in the thermal field control. That's great!"

Jiang Xia casually adjusted the speed reducer to ensure a stable lifting speed, then clapped his hands.

"Ha, that's right, this is what you call high-end customization. But you guys are pretty good, you even have stepper motors. Which factory made them?"

Dr. Lan Ying was slightly taken aback. "Oh, I don't know that. I only know it's called an electric motor. I'll ask around for you later."

Jiang Xia nodded slightly. After all, everyone just calls them motors now, so how can they distinguish between a stepper motor and a servo motor?

Besides, stepper motors are currently mostly used in the electrode delivery mechanism of hydrogen arc lamps. Well, a hydrogen arc lamp is basically a searchlight, you know.

On the northern battlefield, in the Bald Eagle camp, searchlights moved back and forth in the darkness, powered by stepper motors. Just look at this science lesson, and I can write a few more words, feeling quite pleased. Anyway, I'll be honest!

However, stepper motors are perfectly suited for use in a machine for propelling blasting pipes in Project 301. This eliminates the need for the original, bulky reduction gear.

To achieve precise speed regulation, Jiangxia used a significant amount of special alloy steel in this device to ensure accuracy. Since alloy steel is produced in limited quantities, saving it for other applications is a wise way to use money wisely.

Hehe, what a fruitful trip! Little Dai Mao pulled out his notebook and jotted it down. Dr. Lan Ying's electronics factory has some interesting stuff. Not to mention the stepper motors, the lead screws pull really fast. The little rascal was originally planning to go back to the factory to work on it, but the others managed to tinker with it in no time.

There are amazing people all over the world, so we really shouldn't underestimate them.

But through this stepper motor incident, the young man realized that the problem stemmed from insufficient communication between research departments; everyone was unaware of valuable advancements. No, that thing needs to be exchanged quickly so everyone can share what they have – that's the right thing to do!

"Alright, Dr. Lan Ying, I'll be going now if there's nothing else. Once this crystal is ready, could you help me grind it into this shape?" As he spoke, Jiang Xia took out a blueprint.

"It's possible, but don't rush off." Dr. Lan Ying smiled as she looked at the rod-shaped structure on the blueprint, which was only a few millimeters in diameter.

"Hmm~ wait a minute, I'll make a call and see if you can get in there..."

The little guy responded and then focused intently on watching the crystal pulling process. The melt, with a small amount of chromium ions (Cr3?), was a bright red color overall. As the seed crystal rod was slowly pulled, the melt solidified and crystallized, looking absolutely beautiful.

"Hey, comrade, I understand that melt cools and turns into crystal, but what about seed crystals that Dr. Lan Ying mentioned?"

The young man who had been manually operating the machine rubbed his arm and came over.

"The one at the very front is the seed crystal, which is a natural crystal. Natural crystals have undergone a long crystallization process under geological conditions, and the internal atoms are arranged in a regular manner. Based on this, the Czochralski growth process can continue to maintain an excellent crystal structure."

"Ah! That's a natural ruby? Wow! It must have been expensive. Where did you find it?!"

Jiang Xia was somewhat lost in thought as he stared at the large ruby, about the size of a child's thumb.

"Well, in terms of value, it's alright. We got this ruby ​​from a painter. He used it as paint, and when he heard we could use it, he gave it to us..."

The little brat was stunned. What? Gems are used as paint?

"Yes, one of our technicians went to eat there and happened to see the painter crushing stones. He said the cinnabar wasn't of very good quality, so he was adding some ruby ​​to improve it..."

Perhaps noticing the young man's surprise, the young man said nonchalantly, "Actually, this is nothing. That master also has malachite, giant clam shell, azurite, gamboge, ochre, indigo, rouge, and donkey-hide gelatin..."

"These items must all be of superior quality!"

The young technician rattled off a string of terms as if he were a comedian reciting a tongue twister.

"Top-grade? You must be referring to gem-quality, right?"

"A gemstone? I don't know, but it is indeed purer than crystals of other minerals..."

Putting aside the technician's somewhat Versailles-esque tone, the little guy was already shocked!

Our ancestors really knew how to have fun.

In later generations, any bag dared to call itself a luxury item?

And what about those "hearts" and "light" gems?

I reckon that if it fell into the hands of our ancestors, apart from jade, everything else would have been ground up and used as pigment.

Our ancestors were really something else!

"Hehehe, how do you know so much?"

The young man shrugged nonchalantly: "I'm his grandson!"

"My apologies, what's your surname?"

"Hehe, no need for formalities, my surname is Guan."

Guan? Lacking basic knowledge, Jiang Xia naturally didn't understand the background of this Master Guan. Knowing about a Master surnamed "Qi" and a Master surnamed "Zhang" was already his limit.

But this did not prevent the master's grandson from praising Jiangxia highly.

"Jiang, could you explain the working principle of your lifting device to me? How does the motor's rotation become linear? And what about maintenance diagrams or something? Hehehe."

It's too much trouble for you to come all the way here if the machine is broken, isn't it?

My grandfather has a painting of "Northern Scenery," I'll give it to you then.

"Hey! What's with all this 'giving away' stuff? That's so tacky! It tarnishes our camaraderie. Let me tell you about a few repair points. Even though it's a makeshift setup, I've still included access ports for maintenance..."

The little guy got excited when it came to machinery.

If you're willing to learn, I'll teach you properly.

Sending paintings is beneath an engineering student's notice; they'd rather use that time to shape this artificial ruby ​​into whatever the little one wants.

One taught diligently, and the other learned attentively. The other technicians kept an eye on the slowly pulled-up crystal rod, recording data continuously.

After receiving confirmation from the leader on the other end of the phone, Dr. Lan Ying couldn't help but click her tongue in amazement.

What did this brat do that the higher-ups are saying he has no obstacles in his path?

Just keep an eye on him and make sure he doesn't go anywhere dangerous? Hey, this kid has higher authority than me?

Dr. Lan Ying muttered to herself as she returned to the small research room.

Looking at the young boy earnestly imparting his skills, Dr. Lan Ying seemed to understand something.

After the lesson was over, he pointed to the crucible and asked, "Natural cooling is too slow, and if we use air cooling, the temperature field changes too quickly, and the crystal will crack. Is there a way to solve this?"

Jiang Xia nodded. "If you're talking about the preparation of special materials, I might not be able to answer that, but when it comes to mechanical control, well..."

"We'll install a cooling system!"

"In this way, we can install some high-temperature resistant water pipes around the outside of the heating furnace, with circulating cooling water inside. Since the high temperature inside the furnace will be conducted to the furnace body, the water-cooled jacket will carry away the excess heat..."

"It's just like that heating system. Except the heating system uses hot water, while the cooling system uses cooling water!"

Jiang Xia pointed to the heating furnace at the other end of the factory building, her tone relaxed.

Hey, Yang Youning's business is expanding pretty fast; he's even added heating furnaces to the factory here.

"Wow, that's impressive. Let's go somewhere else..."

Dr. Lan Ying was all smiles.

what?

Should we leave Beijing?