Two days later.

Yilin was wearing a black robe and a pointed hat.

On the podium, a Deng with white beard, holding a small stick, talked with great confidence.

Deng's head is green.

Don't get me wrong.

Only the name is green, the others are not green.

After officially becoming a member of the University of engineering, the reputation value of the University of engineering has also advanced from "neutral" to "friendly" on Yilin's [reputation] panel.

So Deng's name is green.

Became a green name friendly NPC.

Yilin also naturally has a title.

——[trainee engineer].

This title can be advanced.

If you want to advance, you must actually complete the courses and examinations in the College of Engineering in order to advance step by step.

The blackboard was covered with various lines.

Grain and node.

Deng tilted the blackboard hard for fear that Yilin would wander away and give a lecture loudly.

"Now, my dear student, listen."

After Yilin's identity changed, old Deng became arrogant and no longer called Yilin "Your Excellency the brave".

The days of being respected by players are gone forever.

Now Yilin is a cute new student under Deng, who has no card.

"I have told you the theoretical basis."

"In the whole engineering, crystallography is the most important. Only by mastering 'crystallography' can we create 'circuits' with various functions."

"Attention, it's time to ask questions!"

Deng raised his white eyebrows, and a joking expression flashed on his face.

"It is known that there are three primary patterns, six secondary patterns and two advanced patterns in the crystal pattern circuit composed of single core crystals. On the premise of minimum energy consumption, how many 'circuits' can we create with less than ten nodes?"

Yi Lin: "

"Two kinds!"

Seeing Yi Lin's face confused and forced, Deng hated the iron and knocked on the blackboard: "they are 'secondary acceleration circuit' and 'secondary floating circuit' respectively! Don't you understand? Another question!"

"If you want to build a 'composite circuit' with three circuit modules of 'secondary defense circuit', 'secondary heating circuit' and 'secondary cooling circuit', can you complete the construction of the above 'composite circuit' with a single core and 20 nodes? Please answer."

Yilin's eyes brightened.

He seems to understand the problem.

Yilin quickly turned over the heavy primary crystallography, key points of circuit construction and optimal solution on node selection on the desktop.

Five minutes later.

Yilin carefully replied: "it seems... Can you?"

"Wrong!" Deng knocked hard on the blackboard: "stupid! The secondary heating circuit and secondary cooling circuit are typical 'conflict circuits', which can't be built with a single core! Unless you want to explode! This is an entry-level problem for young children!"

Dong!

Yilin bumped his forehead on the cover of the textbook.

Outside the classroom.

Wang Tiandi lay contentedly outside the door, listening to the roar from inside, couldn't help pulling down his ears and covering them.

It seems... A little miserable.

“……”

……

"Now I'll give you a practical lesson."

Deng took out a piece of textured paper drawn in advance.

Yilin carefully identified the pattern and was a little uncertain: "secondary heating circuit?"

Deng nodded with appreciation and looked pleased: "you finally got it right once!"

“……”

Deng took out another small flask with water in it.

Deng put a complete small crystal in the "core" position, and then put some crystal fragments on the "node".

A simple crystal grain single circuit has been constructed.

Soon, the lines on the paper lit up.

In the complete circuit, the power of crystal flows silently.

Yilin looked very seriously and didn't blink. He didn't want to miss any details.

In a few minutes.

The water in the flask began to boil.

No matter how many times he watched it, Yilin felt that this "Engineering" was very magical, which made Yilin gradually forget his place. It was a game world.

"Is this magic..."

"Nonsense, this is science! Believe in science! Science and technology are the primary productive forces. Try to build the simplest 'secondary heating circuit'."

"OK!"

Yilin is eager to try.

"Loop... Node... Crystal grain..."

Deng easily made a pot of tea with just boiling hot water and made the best use of everything. Waste is shameful.

While tasting cheap black tea, a Deng, the great engineer, was free to pay attention to the movement of Yilin.

"Eh? It's fast! Ah? Wait, don't put it there! It's explosive -"

Boom!

Smoke billowed out of the classroom.

Yilin walked out of the smoke and silently took out the communication crystal.

"Er, the medical team? There was an accidental explosion in the c-101 laboratory on the 43rd floor. Deng... The big engineer fainted. Hmm? Which big engineer do you say? Let me think, it's... Albus Percival woolfrick Brian Dumbledore. Well, it should still be alive. Hurry, don't talk."

This time, Yilin finally skillfully shouted the full name of Deng.

Deng, in a coma, said he was very pleased.

……

……

A month later.

54th floor, University of engineering library.

Zone C.

The title on Yi Lin's head has also successfully advanced from [trainee engineer] to [intermediate engineer].

Deng still remembered the explosion a month ago.

Deng never expected that the "extremely dangerous student" who created one explosion accident after another could complete courses from "student engineer" in just one month, pass the assessment again and again, and obtain the title of "intermediate engineer" without water.

If you could be so awesome, wouldn't I have to be bombed??

……

Guide to intermediate crystallography.

Selection and analysis of multi-core and single core circuits.

Advanced node construction guide.

Defense loop, intermediate.

Detailed explanation of the construction of conflict circuit.

Floating circuit, advanced.

Lightning circuit, beginner.

Complete collection of crystal types.

On the idea of using conflict circuit to create explosion.

Eh?

On the self-cultivation of big engineers?

I ™ Why don't you know that big engineers have self-cultivation?

Yilin looked at the signature.

——"By albus Percival woolfrick Brian Dumbledore."

It's okay.

Yilin ignored the book without expression.

"I seem to have seen it all."

Yilin's fingertips scratched on the cover of a book, dull and tasteless.

He's seen all this.

Although many of the contents could not be fully understood, Yilin forcibly memorized them with a terrible memory and digested them slowly afterwards.

Yilin raised his head and looked at the shelf in front of him. He was very speechless.

You say a good round RPG online game, even if you convey knowledge in this way. Maybe you can't tidy the bookshelf a little? There are more than 50% of the books on the shelf. Although the authors are different, the contents are similar. As like as two peas, sometimes even the same type of textbooks, even the same sentences appear.

After the awesome explosion of AI Deng, he was scared, and directly gave the 54 tier Library of Li Li the right to be a treasurer.

It is also called: real genius depends on self-study.

"Eh? This one seems a little interesting."

Detailed explanation of crystal grain, node and core layout in super large composite circuit.

There are three libraries in this large engineering tower.

Deng treats him well. The books in the 54 story library belong to the most advanced library. Ordinary students can't get in, or even open to "exchange students".

In such a large library, there were no other students except Yilin. All around was the sound of Yilin turning over the book.

"This game is so interesting. I'm really curious about whether these knowledge is fabricated out of thin air. The principles in it are very clear. Once I really learn it, I can't help indulging in it and don't want to practice level. In this way, I'm really an incompetent 'elite player'."

For a whole month, except for finding Deng to complete the corresponding assessment and reasonable work and rest, Yilin spent most of his time in the library.

Maybe even Deng can't imagine how many books Yilin has read and how much knowledge about "crystallography" he has mastered in this month.

Even taking time, Yilin glanced through the mechanical structure of floating boat.

Unfortunately, Yilin has little interest and doesn't have much thought in this regard.

"The crystal of the game world is equivalent to a pure 'energy source', but crystallography can play a specific role in a specific way. The thickness of the grain, the distribution of nodes and the number of cores determine how far this' energy source 'can be played."

"Moreover, this energy source is a one-time and non renewable resource. No wonder they are so anxious after the so-called 'crystal mine' is exhausted. Everything in the game world is inseparable from 'crystal'. Once the crystal is lost, many facilities in the world cannot operate. Oh, this should be the case in the game setting."

But is that true?

Elaine closed her eyes.

In the past month, Yilin asked himself the same question countless times.

Is this really just a simple game world?

Whether it's the interaction with NPC or the complex and mysterious but ridiculously complete crystal grain system, it's difficult for Yilin to believe that he's in a simple game world.

It is hard for him to imagine who can have this ability to create a huge scientific and technological system.

Yilin even has a feeling that this strange technology can be used even in reality.

Of course, the premise is that there is a "crystal" energy source in the real world.

"But the essence of crystal is just a kind of 'high purity energy'. Can it be replaced by other energy sources?"

Yilin turned the book and was distracted. Many thoughts flashed in her mind.

an hour later.

Yilin remembered another book.

He silently closed the detailed explanation of the arrangement of crystal patterns, nodes and cores in super large composite circuits. While there was still time, he continued to stand up and look back and forth in the neat bookshelves to see if he could find interesting books.

"Hmm? What is this?"

Yilin glanced at a corner of the bookshelf.

There was an ancient book without any words on the cover. This ancient book is made of the skin of a demon. It looks very old. There are many chaps on the skin of the demon. Opening the title page, the inner page has turned yellow. Obviously, this book has gone through many vicissitudes.

"It's just a game. Do you need to spend so much effort on such details?"

Yilin smiled and looked at the three words on the title page.

——World history.

"Oh?"

With curiosity, Yilin patted the dust inside, and then simply sat on the ground to read by the soft light of the crystal lamp.

I don't know how long it took.

Yilin sat up straight.

The smile on his face gradually converged and changed into a dignified look.

"Ding!"

Right now.

[current main task objective: to find the source of the crisis of world destruction. The goal is completed!]

[get exp + 18000.]

[gain gold coin + 12000g.]

[mainline task updated!]

[current main task: the mission of the brave.]

[current mission objective: find more clues about "evil gods".]

[task difficulty: a +]

[task time limit: none.]

[task reward: exp + 25000.]

Then.

A golden light went straight to Yilin tianlinggai.

Congratulations

[level increased to lv36!]

[obtain 'Divine point'!]

I've been stuck for a whole month and finally got promoted under this wave of golden light.

But at the moment, Yilin had no time to experience the pleasure brought by the upgrade. He closed the world history in his hand expressionless and hurried out of the 54th floor library.