The magnetic field rotation that began in Jujutsu Kaisen

three days later.

The atmosphere in Dong Yangping's research room was exceptionally lively.

Professor Sato stood in front of the whiteboard, his pen flying across the paper as he drew intricate diagrams.

Dr. Nakamura sat in front of the computer, his fingers flying across the keyboard, and dense data scrolled across the screen.

Engineer Yamada squatted down next to a huge electromagnetic coil, carefully adjusting the instrument's parameters.

Kinoshita, the assistant, was quickly taking notes.

Dongyang Ping sat in the chair in the center with his eyes closed.

Blue arcs of electricity were slowly flowing across his body.

"That's enough." Dong Yangping opened his eyes. "The current intensity should be sufficient."

Professor Sato nodded and pointed to the diagram on the whiteboard:

"Dongyang Jun, our previous research has confirmed that your bioelectricity is essentially a controllable ion flow. Its intensity is tens of thousands of times that of an ordinary person, and you can precisely control its frequency, intensity, and direction."

He drew a simple circuit diagram on the whiteboard:

"According to Maxwell's equations, a changing electric field produces a magnetic field. This is a fundamental principle of physics. Your bioelectricity—which is essentially the directed flow of ions in your body—generates a corresponding magnetic field."

Dr. Nakamura picked up the conversation, adjusting his glasses:

"The key is the intensity. The bioelectric electrodes of an ordinary person are very weak, and the magnetic field they produce is negligible. But your situation is different."

He pulled up a set of data on the computer:

"According to our measurements last week, the magnetic field strength you generate when you normally stimulate bioelectricity reaches 0.5 Tesla—that's 1 times stronger than the Earth's magnetic field. This strength is close to the level of medical MRI."

Dongyang Ping nodded.

He had seen this data before, but listening to the experts explain it now still gave him a strange feeling.

"So, here's the question."

Engineer Yamada stood up, dusting off his hands: "Electricity generates magnetism, and conversely, magnetism can generate electricity. If you can control the magnetic field you generate, theoretically—"

"In theory, I can use magnetic fields to interact with the outside world."

Dong Yangping chimed in: "For example, its interaction with the Earth's magnetic field."

"right!"

Engineer Yamada's eyes lit up: "The Earth itself is a giant magnet. From the geographic South Pole to the geographic North Pole, there exists a stable magnetic field. If you could generate a sufficiently strong magnetic field within your own body and control its direction and polarity—"

He paused, then his tone became excited:

"Then you can interact with the Earth's magnetic field. Like two magnets, like poles repel and unlike poles attract."

Dongyang Ping's heart stirred.

This is what he wants.

flight.

It requires no wings, no magic, and no external force.

All it takes is the interaction between the magnetic field within one's own body and the Earth's magnetic field.

"But there's a problem," Dr. Nakamura poured cold water on the idea, "Is the polarity of the magnetic field within your body fixed? Can you control its direction?"

Dongyang Ping fell silent.

This is a good question.

He previously only knew that he could generate bioelectricity and control the strength and direction of the current.

However, the direction of the electric current determines the polarity of the magnetic field.

If he can control the direction of the electric current, he can theoretically control the polarity of the magnetic field.

"I'll give it a try."

He closed his eyes again.

The body's bioelectricity begins to flow.

Previously, he would let the current flow naturally along the nerves, from the spine to the limbs, and then back from the limbs.

This is a natural cycle.

But now, he needs to change.

To prevent the current from circulating naturally, and instead make it flow in the direction he wants.

It's hard.

It's like turning your blood backwards, going against your instincts.

But Dongyangping's greatest strength lies in breaking through instincts.

He started to try.

First, let the current flow from the right hand to the left hand.

A strange sensation immediately came through my body—aches, numbness, as if something was twisting inside me.

But he held back.

The direction of the current has changed.

"The magnetic field polarity has reversed!" Dr. Nakamura exclaimed. "The sensors show that the magnetic field direction is completely opposite!"

Dongyang Ping opened his eyes.

He looked at his right hand, then at his left hand.

He felt it for a split second.

That feeling of rejection.

It wasn't an illusion; it was real—as the current flowed from his right hand to his left, a slight repulsive force was generated between his right and left hands.

Like poles repel each other.

It worked!

Everyone was incredibly excited, especially Nakamura and his friends. If they hadn't signed a confidentiality agreement, they would have wanted to film this scene right now!

Over the next few hours, Dong Yangping continued to try.

Let the current flow from the top of your head to the soles of your feet.

Let the current flow from your back to your chest.

This allows the electric current to form various complex circuits within the body.

With each change, the polarity of the magnetic field changes.

And with each change, he could sense that subtle interaction—

Interaction with surrounding metallic objects.

The iron tools placed on the table would tremble slightly.

The metal shelves on the wall make a slight humming sound.

Even the chair he was sitting in, with its metal frame, seemed to resonate with him in some strange way.

"That's amazing..."

Professor Sato murmured, "Your body is now like a giant electromagnet. And it's an electromagnet whose polarity can be actively controlled."

Dongyang Ping nodded.

But that's not all he wants.

He wanted to fly.

"I need a stronger magnetic field," he said. "What we just did wasn't enough."

Dr. Nakamura looked at the data:

"The magnetic field you just generated was 0.5 Tesla. To produce a noticeable magnetic levitation effect, you need 1-2 Tesla. And to make yourself float—"

He quickly calculated: "Let's assume you weigh 120 kilograms. To overcome gravity, you need to generate an upward force of at least 120 kilograms. According to the formula for electromagnetic force, this would require a magnetic field strength of approximately 2-3 Tesla."

Dongyang Ping nodded.

2-3 Tesla.

That's 4 to 6 times his current limit.

"Will it work?"

Engineer Yamada asked, "This strength is approaching that of some powerful electromagnets. Can your body withstand it?"

Dong Yangping remained silent.

He closed his eyes.

The body's bioelectricity begins to be fully activated.

This time, it's not a test, it's not a practice.

The author is a professor at the University of California, Los Angeles.

Blue lightning burst from his body, instantly illuminating the entire room.

The air began to crackle, and the smell of ozone filled the air.

The metal tools on the table began to tremble violently, some even flying up and crashing into the wall.

The metal rack on the wall emitted a piercing screeching sound, and the screws were loosening.

The computer screen flickered a few times and then went black.

Dr. Nakamura exclaimed, "My data!"

But nobody paid him any attention.

All eyes were on Dong Yangping.

The person sitting in the chair was now enveloped in dazzling blue lightning, his hair stood on end, and his eyes flashed with electricity.

Then—he moved.

It's not about standing up.

Instead, it floats up.

The chair left the ground and floated up.

It was about five centimeters above the ground, just hovering in mid-air.

"Oh my god..." Professor Sato murmured.

Engineer Yamada stared wide-eyed, his mouth agape, speechless.

Even the usually composed Dr. Nakamura was stunned into silence.

Dongyang Ping opened his eyes.

He looked at his chair, which was off the ground, at the floor, and at the shocked expressions on the faces of the people around him.

Then, Dongyang Ping smiled: "It seems... it's done."

No sooner had he finished speaking than the chair crashed back to the ground with a loud thud.

The electric light on Dong Yangping's body also disappeared.

He slumped into the chair, panting heavily.

"Too much energy consumption. Can only last three seconds."

"Three seconds is enough!" Engineer Yamada exclaimed, his face flushed with excitement. "Do you know what this means? It means the theory is valid! The principle is feasible! As long as you can increase the intensity and extend the duration—"

"Flight," Professor Sato began, his voice trembling, "human beings, true flight, without any external force."

Dr. Nakamura began frantically typing on the now-blacked-out computer screen, trying to retrieve the data from before.

"Just a moment ago, the magnetic field strength reached 2.8 Tesla!" he shouted. "The peak! Right the instant you floated up!"

Dongyang Ping nodded.

2.8 Tesla.

It was a little higher than he had imagined.

But the duration was too short.

three seconds.

What can you do in three seconds?

Is it enough to fly from the ground to the second floor and then fall down?

not enough.