Meet the principal

To some extent, perpetual motion has been a long-cherished wish of mages for many years, but just as even the most powerful legendary mages will eventually fall, there is no machine or magic in the world that can continue without external energy supply. operation.

"Perpetual motion machine..."

This is a typical civilian routine, Reiner thought.

"Can we go take a look?"

He asked, Reiner had never seen how perpetual motion machines were designed in this world, and wondered if there would be any difference in the face of the power of magic.

"It should be okay. I see the conference room is not closed."

Igor had already sat on the chair, his eyes fell on a paper on the table, and he seemed to have no interest.

"Then I'll go take a look."

Reiner didn't force Igor to grab him, he walked out of the office alone and walked into the conference room next door.

As soon as he walked in, Reiner saw Director Percival and Roger. They were sitting on the sofa, each holding a paper in their hands. Opposite them, a young man was looking at him with great energy. He didn't notice these two people until Reiner approached.

"Hey, this is it?"

The young man wore an elegant formal robe, and the cuffs were embroidered with a gold edge in accordance with the association's regulations to indicate his identity as a first-level mage.

He looked at Reiner up and down, noticed Reiner's identity, and subconsciously thought that he was a mage responsible for doing odd jobs.

"Liner, why are you here..."

Director Percival raised his head, glanced at Reiner, and then felt helpless.

"Forget it, just sit aside and watch carefully."

He pointed to a row of chairs against the wall of the conference room. Since Reiner was here, it was not convenient to drive him away. Percival only hoped that Reiner would not cause trouble.

"My father often talks about you, Lord Orson. He said that you are a promising mage and you may even be promoted to a high level in the future."

The young man didn't notice the whispers of Percival and Reiner. He spoke quietly while the two review committee members were reviewing the paper.

"you flatter me,

Mr. Duravin, I'm just doing my job. "

Parcival replied, he put down the paper, it seemed that he already knew what he was talking about.

"How about the 'Eternal Pendulum' I designed? Isn't it very innovative? It solves a problem that has troubled mages for thousands of years with such a simple method. To be honest, I didn't expect that I was so smart."

The young man asked again, his words revealing an indescribable arrogance.

"Haha, I don't think a person like Rainer Ingle could come up with such a brilliant idea. I wonder if he, who is known as the most promising high-level mage in the past fifty years, saw my thesis? It won’t cause a cognitive breakdown and explode on the spot.”

He spoke freely, and it was obvious that his unknown father might not have taught him to keep a low profile.

Hearing Mr. Duravin's words, Percival smiled helplessly and did not explain more, but waited for Roger beside him to complete the review.

After about five minutes, Roger, who was wearing a monocle, put down his paper.

"Roger, please tell me your opinion first."

In Dulavin's expectant eyes, Percival asked Roger to make the judgment first.

Roger picked up the paper again, glanced at it, and continued.

"The design here, well, is indeed somewhat innovative. There are almost no examples in the past..."

"Right, let me just say, this is a unique design, and you are witnessing history!"

Duravin said impatiently, his voice full of excitement.

"Uh, but..."

Roger paused, glanced at Percival, and then continued.

"But this design, I don't think it can achieve the ability to continue running forever without any external energy supply. This is not a perpetual motion machine."

Roger's words made Duraven's eyes widen with an expression of disbelief.

He was stunned for a long time before he spoke, with a gloomy expression.

"Sir, I suggest you re-read my paper. I believe you will have different opinions."

"Actually."

Director Percival spoke at this time.

"I also think there are big flaws in the design here, and it's far from being permanent motion."

The attitude of these two people surprised Reiner. He thought that according to Igor, these people were all messing around. Maybe Director Percival would pass against his will because of the power of Duravin's father. The other party's thesis, but I didn't expect that these two people still maintained the basic qualities of mages seeking truth from facts.

"You can't understand the mystery of this at all!"

Dulavin's originally polite image immediately collapsed. He knocked on the table and argued rather dissatisfiedly.

"Come and see."

Director Percival suddenly turned around and handed Duravin's paper to Reiner.

"Uh, okay."

Reiner didn't know which part of the song it was about. Even in the morning, Director Percival told him to do his job well and not to meddle in other people's business.

He took the paper and soon saw the design drawing of the so-called perpetual motion machine.

It is a roulette disk with twelve sticks of equal lengths evenly mounted on it. One end of the stick is a small ball. When the roulette disk rotates, the small ball on one side will move away from the axis due to centripetal force. The other side will be close to the axis, so that it seems that it can keep running forever relying on the conversion of centripetal force and inertia.

"How can a first-level mage understand the subtleties of my design? Mr. Percival, listen to me..."

"Of course it can't be a perpetual motion machine."

Reiner interrupted the other party's words and continued before Duravin could refute.

"This seems to be able to run continuously, but in fact, the number of small balls located on the left and right sides of the rotating axis is not the same. If a mathematical model is established, these equations can be obtained..."

He quickly started writing on the blackboard in the conference room and established a series of equations. Through substitution and elimination, the equations on both sides finally got the same answer.

"In other words, when this condition is reached, the entire machine will stop running due to force balance. This proves that this design is not a perpetual motion machine. This is a simple mathematical calculation. The required mathematical level does not even exceed the second ring. I I don’t know why Mr. Duravin didn’t do his own math first.”

Reiner put down the chalk and saw Director Percival's eyes widen slightly. This series of calculations was obviously beyond his expectation.

On the other side, Duravin's face was red. Obviously, Reiner's use of mathematical means to completely deny his thesis made Duravin feel extremely humiliated. His hands were trembling slightly, and he was about to explode.

"Who are you to question me like this?"

He asked in a deep voice, gritting his teeth.

"Linard Ingle, if I remember correctly, are you still planning to blow my head off?"

Putting down the chalk, Reiner patted the chalk dust on his hands.