Card maker? No, I'm a mechanic!

Professor Lin stubbornly argued, but his eyes flickered somewhat.

"Old Lin, in close combat, you can't dodge those extreme attacks for even a second."

Jiang Zhe mercilessly added insult to injury, his fingertips lightly gliding across the card surface.

"However, as a simpler way to save one's life, this feature is quite suitable for ordinary students."

"Hey kid, you really don't give me any face at all."

Professor Lin chuckled and scolded, then immediately stuffed the card into Jiang Zhe's hand.

"Sigh... Now that you've also noticed the problem, I already have a new idea."

"Then you can keep this card and play with it, or you can let Su Man practice on it."

"Then I won't stand on ceremony."

Jiang Zhe chuckled and casually put the card into his pocket.

Although its performance is not as good as the original, its materials and workmanship are still top-notch.

If we take it back and make a few modifications, we might be able to use it as a backup thruster for the drones.

"By the way, Mr. Lin."

After putting away the cards, Jiang Zhe seemed to suddenly remember something.

"Last time we had no information about those ruins, which was terrible. Since this time it's said to be the core area, I'll have to do more research."

"The academy should have detailed information about that site, right?"

"Yes, there are, but most of them are just brief reports."

Professor Lin pointed in the direction of the library.

"They're all kept in the restricted archives room of the library."

"According to the site's origin report, the core area may have been a mechanical factory or energy center of some ancient civilization, with a rather complex structure."

"Since you're interested, why don't you go take a look? It just so happens that you've never been to the restricted area before."

"A machine factory?"

A glint of light flashed in Jiang Zhe's eyes, and his heart skipped a beat.

These words were absolutely irresistible to him!

If it really is a machine factory, doesn't that mean it might have machine tools?

In other words, is there a real opportunity to mass-produce heritage artifacts?

"Alright, I'll head over now. You can take your time studying it."

……

After bidding farewell to Professor Lin, Jiang Zhe strode briskly toward the library.

It was midday, and the sun was shining brightly.

Because of the selection competition tomorrow, the college is full of students busy preparing.

After weaving through the crowd, Jiang Zhe quickly arrived at the magnificent library.

"Beep... Teaching assistant privileges verified."

As the ID card was swiped on the sensor, the second-floor passage, which was previously closed to ordinary students, slowly opened.

"Having privileges is awesome."

Jiang Zhe smiled, and then swaggered up amidst the envious gazes of the surrounding students.

Compared to the chaos on the first floor, the environment on the second floor was obviously much quieter.

This place mainly contains advanced theoretical books and blueprints, and only a few high-achieving students with special privileges can come up here.

Jiang Zhe weaved through rows of tall bookshelves, searching for the entrance to the forbidden zone.

However, as he passed the discussion table in the corner, a hushed argument caught his attention.

"No! Something's definitely wrong here!"

"According to Professor Wang's theory, eddy current losses will occur when energy flows back here."

"If this problem isn't solved, this card simply can't be made!"

The speaker was a girl.

She was wearing a simple school uniform, and a pair of thick black-rimmed glasses perched on her nose, almost covering half of her face.

At that moment, she was holding a pen and pointing at a huge blueprint spread out on the table, looking very anxious.

"But if we don't let it flow back, how will the energy circulate?"

The boy sitting opposite her scratched his head upon hearing this, looking troubled.

"We've tried dozens of solutions, but they've all blocked us here."

"This bounty question is too difficult; it's simply beyond our capabilities at this stage."

"No! Try again!"

The girl bit her lip, a hint of stubbornness flashing in her eyes.

"This is our only chance. If we can solve it and Professor Wang takes a liking to it, then we can hope to pay for our tuition and materials next semester!"

"But……"

The two were scratching their heads, staring at the blueprints, clearly having hit a dead end.

Seeing this, Jiang Zhe originally had no intention of meddling in other people's business.

But when his gaze inadvertently swept over the blueprints on the table, he involuntarily stopped in his tracks.

"Fluid mechanics...pipe backflow?"

Although it uses the runes and loops of this world, its core logical structure is clearly a typical pipeline fluid model.

However, these two made it extremely complicated, almost like trying to solve one plus one using calculus.

Occupational urges kicked in, and Jiang Zhe suddenly felt an itch to use his hands.

He quietly moved closer, stood by the table and glanced at it twice, but he just couldn't resist.

"You two wait a moment."

The two, who were arguing heatedly, were startled and quickly looked up.

A strange young man was standing by the table, looking at them speechlessly.

"Who are you?"

The girl cautiously covered the blueprints, afraid that someone would see her train of thought.

"This is our research topic; you can't just look at it casually."

"I was just passing by."

Jiang Zhe pointed to the blueprints on the table, speaking casually.

"I felt a little sorry for the paper after seeing you two struggling with it for so long."

"You want to solve this reflux loss problem?"

"Yes...yes," the boy nodded subconsciously.

"It's actually not that complicated."

Jiang Zhe didn't stand on ceremony and directly took the pen from the girl's hand.

Then, to the astonishment of the two, he drew a seemingly superfluous circle next to a node on the drawing.

Then a thin line was drawn out and connected to the other end of the loop.

Instead of trying to fight back, we should go along with it.

Jiang Zhe casually explained it using a term that the world would accept.

"Just imagine this flowing energy as a stream of water."

"If it doesn't want to turn back, then don't force it."

"Just make an opening here, let it turn a corner, and flow into this loop..."

In his view, this is clearly a classic diversion and depressurization valve structure.

With the final stroke completed.

Although the lines on the drawings became more complex, the pervasive sense of unease vanished instantly.

As card masters, both of them could vaguely sense that if this new circuit were to operate...

That virtual energy can flow freely!

The problem that had troubled the two of them for days was solved so easily.

"What...what kind of structure is this?"

The girl's eyes widened, and her glasses almost slipped down.

Although she didn't understand the principle behind the circle, she was deeply impressed.

"You can actually guide energy like that?"

This sudden realization made her tremble all over, as if she had seen the door to a new world.

"That's amazing! Senior, you must be studying under a professor, right?"

The boy was so excited he almost jumped up, his eyes filled with admiration as he looked at Jiang Zhe.

"It's just a casual drawing, don't worry about it."

Jiang Zhe put down his pen, keeping his achievements and fame hidden.

"I actually came here to ask for directions."