Net King: Edogawa Sakuraichi

Chapter 825 Unnecessary Competition
With condensed eyes, Santian suddenly tightened his hand holding the racket, "Qiaodaoyu—————"

boom--

There was a loud bang, and the white light was blinding.

The racket lightened suddenly, and the yellow-green light pierced through the racket. Santian followed its figure forward and even moved backward. With a bang, something fell heavily to the ground, bouncing loudly, like It is the heartbeat of a person.

quiet!
There was silence in the stadium, except for the sound of heartbeats.

"Total...resonance..." Widening his eyes, Mita looked at the tennis ball bouncing on the ground in disbelief, which was still at the same frequency as his heart.

"Whoah, Nagai SAMA!!!!"

"Dong~bang~ decider, Runoff-in-ours, Runoff-in-ours!"

"Santa-kun, come on!!!"

"Chang~sheng~Li Haida, Let's-go, Let's-go, Let's-go!"

Looking at a few people, Sakura's eyes moved slightly.

Resonance refers to the phenomenon that the amplitude of the system increases significantly when the excitation frequency of the mechanical system is close to a certain natural frequency of the system.

During resonance, the energy input into the mechanical system by mechanical force is the largest, and the obvious vibration mode of the system is called displacement resonance. In addition, there are velocity resonance and acceleration resonance that occur at different frequencies.

In mechanical resonance, common excitations include directly acting alternating force, vibration of support or foundation, and unbalanced inertial force of rotating parts.

The excitation frequency at resonance is called the resonance frequency, which is approximately equal to the natural frequency of the mechanical system.

For a single-degree-of-freedom system, there is only one resonance frequency. When a frequency-sweeping excitation test is performed on a single-degree-of-freedom linear system, a resonance peak appears on its amplitude-frequency response.

For a multi-degree-of-freedom linear system, there are multiple resonance frequencies, and multiple resonance peaks appear correspondingly during the excitation test.

For nonlinear systems, amplitude jumps appear in the resonance region, the resonance peaks are obviously deformed, and super-harmonic resonance and sub-harmonic resonance may appear.

At resonance, the work of exciting the input system is in balance with the work dissipated by damping, and the shape of the resonance peak is closely related to damping.

In general, resonance is harmful, and it will cause large deformation and dynamic stress of machinery and structure, and even cause destructive accidents. There are many examples in engineering history.

After Nagai triggered the powerful spiral power of tennis balls, he hit the ball with a heavy hammer. When he met Yamada's "Bianwei · Qiudaoyu", the power of "Thousands of Thousands Resonance" broke out, and the power of "Bianwei · Qiudaoyu" was brought to the fore. For personal use, strengthen the original power of 'Thousands of Thousands, Resonance', and finally completely weaken the 'Bianwei'.

Resonance, on the other hand, means to bring the enemy together and revitalize oneself.

In addition, Sakuraichi can feel that the 'Thousands of Thousands Resonance' used by Nagai is a nonlinear sub-harmonic resonance, which is extremely destructive.

Not only her own body bears twice the shock wave, but even her opponent has to bear at least three and a half times the shock wave. This is a move that damages the enemy by one thousand and self-damages eight hundred.

However, Sakuraichi didn't understand that this kind of move is supposed to be a deadly trick that would be used at the most critical time of defending the ball, but Nagai is using it now, something seems wrong.

And just now, Nagai looked at his right hand, since it is his right hand...

Sakura turned her eyes and looked at Yamada. Her whole arm hidden under the sleeve had turned red, and she couldn't help squinting slightly.

This time, there is no need to compare anymore.

However, no one knew her conclusion, and the game was still going on in the stadium.

"Ho~~ho~~~" Nagai panted heavily, her face was covered with sweat, just one blow of "Thousands of Thousands - Resonance" took all her strength, then, for the next game, what to do?
(End of this chapter)