My Hard-Working Skills Were Exposed, And The Police Asked Me To File For The Record

Chapter 59: Use scientific formulas to calculate the power of a needle!

Liang Shaoke stared at the information, looked at the student named Fang Hao, and recalled what his daughter said.

He still couldn't identify with the video his daughter watched.

With manpower, it is impossible to let a needle pass through the wood.

However, Fang Hao appeared at the scene of the crime, and he also appeared in the school as a suspicious person, so there is a corresponding suspicion no matter how you look at it.

that video...

In any case, that video is also a direction of investigation, and it is absolutely impossible for them to judge whether this person is suspected of committing a crime based on subjective assumptions.

thump thump.

At this time, there was a rush of footsteps.

"Captain Liang, the director called you for a meeting."

Liang Shaoke nodded blankly, then stood up and walked towards the conference room.

"Everyone, have you got any results from the investigation on Fang Hao?"

At the top of the meeting room, Li Wenshan glanced coldly at all the police officers present, with serious and gloomy expressions.

Regarding Li Rongfang and Zhao Jinzhong, the police station has conducted corresponding investigations, and initially ruled out their suspicions.

After all, one is a library worker who is only thinking about finding a lover on a date, and the other is a student who sneaks into the school to find inspiration for writing a novel.

Neither of them could have made such a sophisticated weapon.

In this way, only Fang Hao was left among the three suspicious persons.

As long as Fang Hao's suspicion is ruled out, then their hard work since today will be in vain again.

Because there are no more suspicious people, then we must find someone again.

As he mentioned the last suspicious person, all the police officers "580" raised their heads.

"Director, according to our investigation, he is a student of the University of Traditional Chinese Medicine, his parents have been abroad for many years, and there is a younger sister at home, who usually lives with her.

Li Wenshan nodded: "At present, there is nothing suspicious about Fang Hao."

"That's true, he looks like an ordinary student." Fu Yuheng said casually.

The meeting room fell into a dull atmosphere, and the air seemed to freeze.

If the suspicion of Fang Hao is ruled out, then they may really have to find someone again.

At this time.

Sitting on one side of the conference table, Liang Shaoke in the middle, looked at all the police officers present, and then at the chief.

"Director, we found a video here about Fang Hao." Wang Chengtian, a member of the investigation team, got up and said solemnly.

Suddenly, all the police officers present turned their heads at the same time.

Li Wenshan's eyes lit up, and he hurriedly asked, "What video?"

Fu Yuheng also questioned: "If it has nothing to do with the case, try not to show it."

Wang Chengtian shook his head: "Before taking out the video, I need to say something I know."

"This Fang Hao also has an identity as the anchor of a live broadcast platform, and the live broadcast content is flying needles piercing wood."

"A flying needle pierces wood!" Li Wenshan stood up abruptly, his eyes widened, as if he had caught something.

The rest of the police officers present, except Liang Shaoke, all looked at Wang Chengtian in unison, with a little astonishment in their eyes.

Flying needles piercing wood........Why does it sound so similar to the dark man they are looking for?

All flying needles!

But immediately afterwards, Wang Chengtian said: "There is a premise that this anchor does not use some kind of weapon, but purely throws it with his hands."

All the police officers were taken aback when they heard this.

Li Wenshan opened his mouth even more, and said in doubt: "Hand shaking? How is this possible.

The police officers couldn't help laughing, they all thought it was a little funny, and they were a little inconceivable about this Fang Hao.

It's really a strange brain circuit and an outstanding idea.

Wang Chengtian didn't say anything, walked up to him silently, turned on the projection device, and imported the video into it.

Then, he controlled the projection equipment and said before pressing the play button: "This is a live video of Fang Hao. In this video, he pierced a silver needle through a wooden board by shaking his hands."

After speaking, he immediately pressed the play button.

All the police officers focused their attention on the projection screen and watched intently.

In the video, there is a young man who looks about 20 years old, his hands are bowed backwards, and he doesn't know what he is holding.

Less than 5 meters in front of him, the wooden stake hangs this 3cm thick plank.

Then, with a flick of the young man's hand, the thing in his hand was thrown out in an instant, turning into a stream of light, and heading towards the wooden board with the momentum of breaking through the air!

next second.

The wooden board shook slightly a few times, and on the wall behind the wooden board, a silver needle sank deep into the wall, and the end was trembling rapidly.

The video ends here.

At this time, the entire conference room seemed to be in a strange, treacherous, and dignified atmosphere.

No one spoke at this time.

Liang Shaoke sighed, smiled helplessly and said, "I've seen this video before."

"Old Liang, do you think this video is credible?" Li Wenshan interrupted in time and asked in a low tone.

Liang Shaoke shook his head: "Director, my first reaction after watching the video was that there is a high probability that this video is a special effect."

Li Wenshan nodded thoughtfully.

Wang Chengtian narrowed his eyes: "Captain Liang, Director, this video has passed the professional inspection of our police station, and no trace of special effects was found.

"But if you can push the silver needle through the wood just by shaking your hand like this...it's really incredible.

He himself felt a little unbelievable.

But investigations are like this, find out every doubtful point, and either overthrow and release people, or establish and arrest people.

"What do you think of this video?" Li Wenshan looked around at all the police officers around the conference table and asked sharply.

At this time, Zhou Mingjiang stood up, looked at the video, and said in a solemn voice: "Director, according to the video feedback, it can be confirmed that the piece of wood in the video is about 2cm to 3cm, and it will definitely not exceed 3cm."

"Then suppose it's a 3cm board, suppose it's the softest wood in the world, balsa wood."

Zhou Mingjiang paused, as if thinking, and then continued: "The Janka hardness of balsa wood is 67lbf, which is about 300N, but in the video is a 3cm board, so the hardness of the board is about... ..about 750n, not directly ×3 times."

"In the video, the distance between the young man and the wooden board is about 4 meters by visual inspection. At a distance of 4 meters, a silver needle, if you want to penetrate the wooden board, use the formula e^(ix)=(cosx+isinx) , plus Maxwell's solution..."

He picked up a piece of paper and quickly performed corresponding calculations on the paper.

All the police officers present looked at him in bewilderment.

Soon, after a period of calculation, Zhou Mingjiang put down the pen in his hand, and presented all the calculation results in front of all the police officers.

"Secretary, everyone, my calculation is as follows. Assuming that if the young man wants to let the silver needle penetrate a 3cm balsa wood board, then at the moment he throws the silver needle, he must hit at least as high as 4 times the force of the board, that is, at least 1200N.

"Because only the force of 1200N can make the flying speed of the silver needle reach 1.35m/s, which can minimize the loss of the silver needle during the flying speed, and the silver needle can retain at least 800N when it reaches the surface of the board. left and right forces.

"In this way, the silver needle can penetrate the wooden board in an instant."

The conference room was completely silent, and a pin drop could be heard.

All the police officers were overwhelmed by this series of calculation methods and many incomprehensible formulas.

It has to be said that knowledge can not only change one's own destiny, but now it seems that it can also change the destiny of others.

"That is to say, it is possible for the young man in the video to fly a needle through the wood?" Li Wenshan asked with a strange expression.

Zhou Mingjiang nodded, then shook his head again: "It's possible, but not very likely."

"What do you mean by that?" Li Wenshan asked with question marks all over his face.

The rest of the police officers present were confused and looked at Zhou Mingjiang very puzzled.

He explained: "Director, everyone, just now I just calculated balsa wood, and balsa wood is the softest wood in the world, but balsa wood is basically not sold outside, so

The wood in the video is most likely not balsa wood. "

"Like the common wooden boards, whether it is a particle board or a composite board, the Janka hardness is between 300lbf-450lbf, and the conversion is about 1400N-2100N. A 3cm wooden board is about 5 times the increase."

"And if you want to penetrate such a wooden board, you need not only three times the force, it may be 10 times, it may be 20 times. In this case, according to the normal force interaction and the reaction rate of the force, Plus Pratiton... Well, to put it simply, even if this young man can exert such a strong force, the silver needle can't bear it at all.

"Also, the current limit of human explosive power is 450 kg. If it is converted into N, it is about 4410 N. To be precise, unless this young man can achieve a power of about 10,000-20,000 N in an instant, yes Can go through planks."

The conference room fell into silence again.

Although they still don't quite understand what the 10,000 or 20,000 cows represent, they know that this is several times beyond the limit of human beings.

To be precise, no one can achieve this.

Then, this video of the flying needle piercing the wood can only be fake, or...

"That is to say, Lao Liang's previous guess was not wrong, and this video is likely to be a special effect?" Li Wenshan asked with some uncertainty.

Zhou Mingjiang thought for a while, then nodded: "It may also be some kind of method, or method, anyway, it is definitely not something that can be done by hand alone."

At this moment.

Liang Shaoke watched the video, his expression paused, and he got up suddenly: "Yes, is it possible that he is the owner of that dangerous weapon, and the flying needle can penetrate wood in the video because of that weapon?"

This sentence, like a bomb, exploded in the silent crowd.

Even Li Wenshan couldn't help standing up, his face full of excitement and excitement.

In order to find this man in the dark, they have already expended countless pissed-off grandfathers, and now, there is finally one person who may meet the conditions of this man in the dark "How can they not be excited.

However.

"There is no such possibility." Wang Chengtian shook his head: "The silver needle in this video was indeed shot from his hand, and we have watched the whole video many times, and there is indeed no suspected weapon." trace."

With his words, the bomb just now... extinguished.

Liang Shaoke also sat down without saying a word.

Originally thought that the man in the dark was about to reveal his true body, and when they could find him soon, the investigation fell into a dilemma again.

Everything will start all over again, everything will be overthrown

"Is it possible... Is it possible that it is a prop?"

At this time, I don't know who said something.

In an instant, everyone raised their heads, with surprise, astonishment, and bewilderment in their eyes.

"Props...that's right, if it is a prop, then it can be explained."

"That's right, if it's not a wooden board, but something very similar to a wooden board, foam or something? That would mean that he can use the flying needle piercing technique.

"However, the explanation works, but it doesn't seem to help us find someone..."

The police officers felt it was funny and speechless. 1.6

Tread Tread.

At this moment.

Hasty footsteps sounded and stopped at the door of the meeting room.

"Report to the Chief! Commander-in-Chief of the Frontier Army under the Yun Province Military Region of the Southern Theater Command, Commander Tan Yongyang Tan wants to communicate with you.

Everyone in the conference room paused, and Li Wenshan was even more confused. It was obvious that he was very surprised by the arrival of all this.

They are the police, representing the Public Security Bureau, and Tan Yongyang is the commander of the border guards, representing the military.

Normally, the military and the police say that there is no separation of families, but the actual situation is that the two sides do not interfere with each other. Except for some specific things that occasionally join forces, it is almost impossible to have any intersection.

Today, the commander-in-chief of the border guards actually asked for communication. This is really a bit strange, and it is a bit confusing.

Li Wenshan pondered for a moment, then asked: "Did Commander Tan say anything about it?"

"Reporting to the director general, Commander Tan said that they have important clues about the two cases of human traffickers in Fenglan City."

heard the words.

Li Wenshan, together with all the police officers present, got up from their positions in an instant, with different expressions, but roughly the same.

In everyone's mind, an unbelievable but very reasonable and unsurprising idea popped up out of thin air.

That dark man who wounded four traffickers in Fenglan City and carried dangerous weapons... It is very likely that he committed another crime in Yun Province, on the territory of the border guards... No, he used him again That weapon does the job!

Thinking of this possibility, all the police officers at the scene were shocked, with solemn expressions.

Li Wenshan clenched his fists tightly, frowned and stood upside down: "Connect to Commander Tan's communication immediately."