My IQ has been increasing year by year.

Chapter 66 is actually quite simple.

The experiment is about to begin.

Less than five minutes had passed.

And in front of the third experimental table.

Chen Zhuo remained standing in the same spot.

He didn't rush to get the multimeter's probes.

He also randomly took the test twice.

Connect A to B, and C to D.

However, he stopped immediately.

Chen Zhuo shook his right hand.

His wrists are still aching slightly from taking so much notes this morning.

His brain was filled with equivalent circuits and resistor networks.

He looked at the multimeter readings, which fluctuated wildly and seemed completely erratic.

We are keenly aware of a fact.

"Just randomly poking around, I can't remember anything."

Chen Zhuo thought to himself.

"The more we test, the more chaotic things get."

"When the brain is fatigued, the error rate in processing this kind of disordered information is close to 100%."

Unlike Lin Yi, he didn't try to force himself to rely on intuition to detect the slight pressure drop.

He doesn't trust his intuition when he's tired.

I decisively abandoned the approach of testing and guessing at the same time.

Chen Zhuo removed the cap from the black ballpoint pen with the transparent barrel.

Lay out a clean sheet of white paper.

Press the ballpoint pen firmly onto the paper.

There is no ruler.

He relies entirely on wrist control.

He drew a horizontal line cleanly and crisply.

Next, there are vertical lines.

A very simple, 44-grid table.

It appears on paper.

He doesn't call it a truth table.

This is just a clumsy grid for easy recording and to prevent forgetting.

Write A, B, C, and D in the top four boxes.

A plus sign was drawn next to it.

Write A, B, C, and D in the four cells of the leftmost column.

A minus sign was drawn next to it.

Cross out the diagonal lines.

There are 12 empty squares left.

This represents the four terminals, and all 12 possible power-on combinations after considering the positive and negative polarities.

The table is finished.

Chen Zhuo placed the ballpoint pen aside without capping it.

He stretched out his hand.

He picked up the external dry cell battery and the wires.

He stopped guessing.

I've stopped gambling.

He began a mechanical and routine mine clearance process.

Red connects to A, black connects to B.

The multimeter pointer is deflecting.

Chen Zhuo glanced at the reading.

Pick up a pen and write down a resistance value: 50 in the first row and second column of the table.

Black ink stains were left on the white paper.

Red connects to A, black connects to C.

reading.

Writing: 120.

Red connects to A, black connects to D.

reading.

Writing: ∞.

The first line has been tested.

Chen Zhuo's expression remained completely unchanged.

He was calm and composed.

Replace the cable.

Red connects to B, black connects to A.

The pointer remained stationary.

In the second row and first column of the table, an infinity symbol ∞ is drawn.

Click, click.

The sound of alligator clips snapping into brass terminals echoed rhythmically on Chen Zhuo's lab bench.

Accompanied by the scratching sound of a ballpoint pen recording data on paper.

He completely cleared his mind.

Don't think about circuit structure or series and parallel connections.

Do only one thing: turn on the power, take the reading, and fill in the grid.

This is an old-fashioned and brute-force exhaustive logic.

It seems complicated and clumsy.

However, when you are extremely tired, this is precisely the method that requires the least inspiration, saves the most mental effort, and guarantees that you will not miss any information.

ten minutes.

12 measurements.

All done.

Chen Zhuo put down the wires and the test leads.

I shook my slightly sore right hand.

Pick up that ballpoint pen.

The black square box on the table.

For him, it was no longer a blind spot full of unknowns.

Chen Zhuo looked at the grid table on the draft paper, filled with black numbers and infinity symbols.

Let's move on to the final step.

There's no need to touch the instruments anymore.

A is positive and B is negative, indicating resistance; B is positive and A is negative, indicating infinity.

Clear one-way navigation.

The diode is located on a path between A and B, with the positive electrode facing A.

Regardless of whether A and C are connected in the correct orientation, their resistance values ​​are exactly the same.

Purely resistive branch.

Chen Zhuo's ballpoint pen moved quickly below the table.

Draw the next node.

Connect a resistor.

Mark the direction of an arrow indicating the polarity.

With comprehensive and thorough data support.

Those originally chaotic topological structures resembled a row of toppled dominoes.

The only truth was deduced smoothly and without any hindrance.

Draw the last connecting line.

Label the calculated resistance values ​​of each resistor.

pat.

Chen Zhuo capped the ballpoint pen.

It made a crisp, light sound.

In the quiet laboratory filled with a tense atmosphere, the soft sound seemed particularly abrupt.

I picked up the draft paper and gently blew on the ink that wasn't completely dry.

Fifteen minutes had just passed.

Chen Zhu strode towards the podium at the front of the laboratory.

Chen Zhuo neatly placed the draft paper with Table 44 and the final circuit diagram in front of Professor Wang.

He nodded at the old man sitting in the chair.

He turned around and went back to his seat.

In the laboratory.

The remaining four boys listened to Chen Zhuo's departing footsteps.

My mental stopwatch started racing instantly.

They knew Lin Yi was a genius, and they had long heard of his extraordinary intuition. They accepted that he handed in his paper early and went to sleep on the table.

Chen Zhuo's family was only 10 years old, and even more talented. They accepted that he wrote it before them.

But the remaining three are all the same age as him. He can't compare to geniuses, and he can't even compare to his peers?

A fine layer of sweat appeared on Miao Shi'an's forehead.

He looked at the unsolvable nonlinear algebraic equations on his draft paper.

My breathing became a little rapid.

He turned his head and glanced at Chen Zhuo, who was also resting on the lab table.

Sudden.

Miao Shi'an took a deep breath.

He picked up his pen and decisively crossed out all the complicated equations on the paper.

He forced his feverish brain to calm down.

There are only four endpoints in total.

What am I, anyway?

Miao Shi'an took a new piece of paper.

Like Chen Zhuo, he honestly started drawing the test grid.

The remaining three from test A, and the remaining three from test B.

He abandoned mathematical equations and turned to a thorough, step-by-step investigation.

He Gui in the corner.

He didn't even think about those complicated equations.

Because he was somewhat timid and afraid of making mistakes, after his initial panic, he instinctively chose the most basic testing method.

Fix one probe and use it to measure the other three.

After completing one set of tests, write it down.

Let's switch to the next group.

He also inadvertently used this clumsy method that is closest to exhaustive search.

The truth behind it was gradually pieced together.

28th minute.

Miao Shi'an breathed a sigh of relief.

He shook the sweat off his hands and handed the completed draft paper to Professor Wang.

Followed by.

He Gui also submitted the sketch, which was full of revisions but ultimately correct.

"Time's up."

Professor Wang's voice rang out right on time.

He picked up the paper tube in his hand and tapped it on the table.

"Stop the test, hand in your paper."

Wang, who spoke little, let out a wail.

He tore down a sketch that looked like a spider web, one that even he couldn't understand.

Zhou Kai shook his head and handed in a half-finished product filled with incomplete equations.

The 30-minute experiment is over.

Of all the people in the room, only Zhou Kai and Wang Shuo were not drawn.

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