The 'Silent Singer' La Masia Roland is an Extraordinary who uses sound waves as his ability. With a rank of 6, just a sound wave margin is enough to make Aldrich's body collapse. Aldrich estimates that it is an ultra-high frequency ultrasound.

According to what Aldrich has learned in science, ultrasound is a sound wave with a frequency of more than 20,000 Hz. With the high-frequency vibration of black gold, as long as Aldrich can create high-frequency sound waves, he can create enough air pressure to make people It produces physiological reactions such as nausea and blurred vision, and can even penetrate the barriers of some armors!

Of course, it still needs to be explored to kill the enemy with ultrasonic waves. It is difficult for Aldrich to find out the situation without experimenting. In terms of perception, ultrasonic waves have more advantages. Unfortunately, as a human, Aldrich cannot receive the information feedback of ultrasonic waves.

But infrasound is different.

The frequency of infrasound waves is lower than 20 Hz. It is relatively easy to make infrasound waves by vibration of black gold than ultrasonic waves. The important thing is that infrasound waves are very harmful to the human body.

The alpha rhythm of the human brain is in the range of 8 to 12 Hz. As long as it is hit by infrasound waves in this frequency range, it is easy to cause resonance!

In addition, the natural frequencies of the internal organs of the human body are in the range of 4 to 18 Hz, which are also very vulnerable to infrasound targets.

According to the number of black gold particles that Aldridge can control at present, once the 'black gold vibration' is used on a large scale, the infrasound shock that can be caused is definitely beyond the limit that the human body can bear!

More importantly, due to the low frequency and long wavelength of infrasound waves, the propagation distance is very long, and the absorption of it by the medium is relatively weak.

Add to that the air speed of 340 meters per second, and the water speed of 1500 meters per second...

Aldrich's current destructive power can even break the arm of a rank 5 Beyonder!

Of course, it's not without its drawbacks.

The frequency of infrasound waves is low, the wavelength is long, the detour is far, and the influence range is much larger than that of ultrasonic waves with short wavelengths. When the 'black gold vibration' is activated, the sound waves generated will not be concentrated, but will be transmitted in all directions. To put it bluntly It's just that the direction is not good, and it has the characteristic of attacking all members of the enemy regardless of the enemy. As long as it is within the influence radius, it will be affected by this - in the case of a city where humans live and companions are nearby, it is definitely not a weapon that can be used.

This flaw is huge!

No matter how powerful a nuclear weapon is, it doesn't need to come out as a decoration. The reason why it is a deterrent is that everyone knows how powerful it is, but Aldridge can't always explain to him how stupid the infrasound is before he fights with the enemy?

Isn't this nonsense!

So, after a short period of excitement, Aldridge had to consider the impact of reality... It's embarrassing that this thing can't be used recklessly.

Taking this disadvantage into account, Aldrich can only conservatively consider its use!

As we all know, the propagation speed of sound waves is different in different media, and decreases sequentially in solid, liquid, and gas.

If you tap your finger on the table while keeping your ear on the table, you will hear a very loud sound, and if you put your ear slightly off the table surface, you will hear a lot less sound.

Therefore, if Aldrich activates the "Black Gold Vibration" when the black gold particles touch the enemy, the impact on the enemy's body will also be much smaller than the impact on the farther area!

And it doesn't have to be fatal damage, as long as the impact of the infrasound wave damages the brain and internal organs enough for Aldridge to take the initiative.

This kind of stealthy attack will make Aldrich's ability to fight enemies even more bizarre.

"Well... it would be nice if there were extraordinary items that could defend against infrasound waves."

Aldrich thought silently in his heart.

If there is such an extraordinary item, and it is worn by one's own people, then Aldrich can have unscrupulous practical ability in certain environments.

The expression on Aldridge's face was so strange, he smiled and then frowned, which made Johnny, who was staring at him, bewildered.

But it was difficult for Aldridge to explain to Johnny. He himself knew little about the need for experiments, and it was undoubtedly even more difficult to explain it to him.

After sorting out his harvest, Aldrich said to Johnny: "I have to adapt to the changes in my body during this time, and I will find a suitable island after a while."

Johnny nodded and said, "Well, just remember this."

It was dawn when the two exited the space, and Aldridge and Johnny said goodbye and returned to the residence before Eve got up.

At this time, Herbert was already up and was helping Mrs. Murphy, who got up earlier, to make breakfast. When he came back, he asked, "Don't you need to buy materials recently?"

Aldridge smiled helplessly and said, "The materials I bought last time can last for a while."

Herbert said: "If you need it, just tell me, I can't help you here for the time being."

Aldridge replied: "Okay."

Carula has been supervising the construction of the orphanage every day recently. On the one hand, she wants to bring the children back as soon as possible, on the other hand, she does not want to cause too much trouble to Aldridge.

Aldridge didn't mind, but they did—even Mrs. Murphy cooked Aldridge delicious food every day.

Most of the money for the construction of the orphanage came from Aldridge's subsidy, and the subsidy given by the city of Spurse was estimated to be enough to build a toilet. Herbert was so anxious that he wanted to pay Aldridge's money back as soon as possible.

During this period of time, Aldridge raised a very important idea - should the Herbert family be included in the "Mysterious Holy See"?

To be honest, in this era, a loyal and reliable guy like Herbert is really rare, not to mention that he is a Beyonder and understands the Beyonder world.

Aldridge has always wanted to find a trustworthy guy to take charge of the extraordinary supplies for the 'Mysterious Holy See'~lightnovelpub.net~ such as materials, acting skills, war potions, etc. It was really embarrassing for Mr. Mentor to do it.

What is more troublesome is that Herbert and the others do not have hatred like Sunderland, Dylan, etc., nor do they live at the bottom like Fitch, Iger, etc., as long as they can climb up, they are willing to give loyalty.

They care more about the children in the orphanage - these little guys are not suitable for participating in the extraordinary world.

And what identity should Aldridge use to talk to them?

Aldridge or Mr. Mentor?

One word, difficult!

Throwing away his thoughts, Aldridge let Eve read a book after breakfast, and he began to adapt to his body and abilities.

However, at night, Karula suddenly came back from the outside with a black face, and as soon as she came in, she grabbed Herbert and muttered, making his face also ugly.

Aldridge couldn't help asking, "Did something go wrong?"

Carula said with a sullen face: "Do you remember Norton?"

Norton... Aldridge still has a little impression. It is a child who was recently adopted by the Sea Voice Orphanage. On the day the adopter came to pick him up, Aldridge happened to meet at the orphanage.

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