Devil Fruit of the City

In the early morning, around five or six o'clock in the morning, the Tianhai University Stadium, the sun is pouring gently on the ground, the breeze is caressing it, and there is a trace of morning dew in it. high speed

At this time, most of the students of Tianhai University were asleep, so in the spacious stadium, few students were exercising.

Probably in the middle of the green grass, Tang Tianyou stood naturally with both feet, his whole body was very relaxed, his eyes were slightly closed, and he was breathing with a peculiar breathing rhythm.

The air seemed to vibrate—

With a frequency of 400 beats per second, Tang Tianyou could already feel the vibration of the bones in his whole body, the muscles began to heat up, and some internal organs in his body also felt some strange changes. After persisting for two minutes, the bones all over his body trembled and went numb, and his legs Soft, almost wanting to loose limbs, and finally couldn't bear to relax in one breath.  Urban Devil Fruit 394

Now Tang Tianyou's body has been fixed at the frequency of 400 Hz. If the speed increases in the process, I believe that the time for persistence is short. Once the resonance reaches an extreme point, the bones can't bear it at all, and will be smashed to pieces.

He was just exercising his body, but he didn't want to turn himself into a mollusk, so he only did some extreme exercise and then stopped.

I remember that when he was wandering around the school during military training, he accidentally passed by a noisy construction site next to the school. Anyone who heard the intertwined noise could not help but frown.

But Tang Tianyou didn't feel it at all, his eyes slightly closed even had a hint of enjoyment in his expression.

In fact, at this moment, he only heard one voice——

The dull harsh hum of the vibration pump!

Ever since he acquired the ability to control vibrations, he has been practicing "selective" listening skills. After such a long time, he finally practiced his heart to follow the sound, and only picked one note from all kinds of noises, while the rest All are filtered without smelling, without the slightest interference.

When all other sounds were filtered by him lightly, and only the sound of the vibrating pump echoed in his ears, a picture appeared in Tang Tianyou's mind——

In the pouring tank full of cement mortar, a thick iron rod with a violently vibrating arm was "inserted" into it! Immediately, the cement mortar around the iron rod also vibrated.

The original gap between the cement, the stones and the steel bar was filled with this sound vibration, and it became tight, and there was no gap at all!

This is an out-and-out reinforced concrete structure. It is a very common method in today's construction. It is very strong and can last for a hundred years. Even ordinary blasting methods can't do anything to it.

Out of curiosity, Tang Tianyou approached the construction site and asked one of the workers with a very kind expression why he did this.

After some explanations, Tang Tianyou also understood that this was to avoid hollowness.

The so-called hollows are the tiny gaps between the cement mortar, stones and steel bars. The reinforced concrete structure is indeed strong, but as long as there is a slightly larger hollow remaining inside, then the reinforced concrete has nothing to do with being strong, and its structure may be worse than some foams.

This is the so-called empty drum phenomenon.

Therefore, under the action of strong resonance, the hollows in the reinforced concrete structure will be gradually eliminated, so that the cement structure will be strengthened and will not be easily broken.

After such an experience, Tang Tianyou's understanding of the essence of vibration has become more profound. Training the ability of vibration is not the ultimate goal, but learning any

The ultimate goal of skills is only one word - use!

Applying what you have learned is the right way, and Tang Tianyou is no exception.  Urban Devil Fruit 394

"Perhaps there are many ways to use the vibration, it should be the way to use it!" Tang Tianyou stopped exercising, thinking deeply in his mind.

In fact, not only could Tang Tianyou control his voice, but he could also hear his own voice. For example, his stunt echo map is learned from bats, making a sound, and then listening to the echo, an image appears in his mind to determine the obstacles in front of him.

This is what he considers to be the highest state of seeing things with closed eyes.

Now he has been stuck in the strength of the soldier level and cannot break through for a long time, but he is not too worried. If he accumulates on this basis and makes his body, strength, and skills stronger, he may get more rewards. benefit.

He has a feeling that the strength of each level should be raised to the highest level so that it will be easier to improve at the next level, just like a solid foundation can build a towering building.

He hopes to learn more about his fundamental ability, which seems to be his innate ability. Only when he understands his own ability to a certain extent, will he know his own strengths and weaknesses, and thus make great progress. .

"Since it is the way to use it, it should not be limited to the intensity and frequency of the sound." Tang Tianyou kept experimenting with this ability, "Maybe there are also changes in the sound, endless changes!"

When he was still in County H, he thought that he had heard most of the sounds in the world, such as wind, rain, thunder and lightning, fish, insects, birds and beasts, chickens and dogs barking... There are other sounds in the world, except for the sound of the sea and the sound of sand. Expected, the rest do not care.

It wasn't until he came to the big city that he realized that he was just a frog in a well, and he really underestimated the world.

Compared with the natural sounds of the mountains and forests, the man-made sounds in the city are really rare and all-encompassing.

After experiencing the bustling sounds of the city, and recalling the sounds in the mountains, Tang Tianyou only had one feeling, which was too boring and lacking in variety.

The sound should be able to develop many changes, and the way of vibration should also be able to develop many "possibilities"!

"Perhaps we can try to make more changes in the way of sound and vibration, instead of just attacking and destroying." Tang Tianyou decided to continuously develop his own abilities.

"Since it's a change in sound, why not imitate the sounds of the world. If the sounds of the whole world can be imitated very similarly, it will definitely be of great benefit."

Tang Tianyou pondered for a while, and then began to imitate.

The first is the dull and piercing hum of the vibrating pump, the clang of blacksmiths striking iron, the thump of drums beating during the Spring Festival, the roar of thunder in the sky...

All kinds of voices in the world seemed to come out of his mouth, the voices were peculiar and interesting, and all kinds of unique voices were extraordinarily clear in this silent stadium.

Finally, a clear bird song came out of his mouth. It was not very clear at first, but as time passed, the bird song became clearer and louder.

Then there seemed to be a slight abnormality in the sky. Two sparrows circled over and circled Tang Tianyou's body twice. Disappointed, and finally reluctant to leave.

"Oh my God!"

A surprised and charming female voice suddenly sounded, interrupting Tang Tianyou's exercise.

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