Naruto's civilian cannon fodder starts with the three-body technique

Chapter 35 Infrasound Radar
After eating and drinking his fill, Umino Sasuke found an excuse and returned to the underground laboratory.

Fortunately, Yume Zhiwei was more sensible, or her reconnaissance range was limited, so she only distributed the parasites to the periphery of the defense zone and had no intention of monitoring the four of them, otherwise it would be difficult for him to escape.

Arriving at the underground laboratory, Umino Sasuke couldn't wait to unseal the scroll and begin installing experimental equipment.

These experimental equipment and instruments are quite valuable, and he took two days to install them all.

After the laboratory was installed, he immediately took out the water bat, a spiritual beast that had been cut in two, from the saline bottle and conducted an anatomical study.

The research results are encouraging, but also not smooth.

The good news is that through the anatomical research in the past few days, the ultrasonic principle of water bats has been basically deconstructed.

The bad news is that although chakra is omnipotent, it also follows the law of conservation of energy. If you want to achieve the same meticulous physiological structure as the water bat, the amount of chakra and control required are relatively high.

Once the maximum perception range exceeds three kilometers, the requirements for chakra volume and control will increase exponentially.

Under normal circumstances, such as actual combat, if one controls the rhythm of the battle at all times like the Byakugan, the perception range of the sonic radar technique should preferably be maintained below two hundred meters.

Of course, with further research, the perception range of the sonic radar technique can continue to expand with the same amount of chakra consumption. However, the more time passes, the more difficult it will be to improve, unless there is a breakthrough in chakra control or transformation techniques.

"Continuing research in this direction is starting to lose more than it gains."

Sasuke Umino was a little disappointed. Although the path of continuing to improve the perception range of the sonic radar technique had not reached a dead end, the input and benefits were obviously not proportional.

However, there is always a silver lining.

When he wanted to draw inferences and read some research materials on psychic beasts, he found some quite interesting research materials.

Especially some related research on tiger-like psychic animals.

Tiger-type spiritual beasts generally have extremely high combat power, and are almost listed as must-do research projects for major institutions, along with eagle-type flying spiritual beasts.

These institutions all focused on studying the combat effectiveness of tiger-like spirit beasts when studying them, but he accidentally discovered a less noticeable piece of research material, or more accurately, some observation records that deviated from the mainstream research direction.

According to this observation record, the roar of a tiger-like spiritual beast actually has a deterrent power similar to that of an illusion, and its impact range is extremely wide. A random roar can be heard for dozens of miles, and can even cause cardiac arrest in ordinary creatures.

"In other words, the roar of a tiger-type spiritual beast has extremely strong penetrating power and can be heard over a very long distance."

Umino Sasuke was shocked and immediately realized the value of these research materials.

Some of the knowledge he had read in popular science books in his previous life also began to come to his mind.

According to popular science books in previous lives, the frequency that humans can hear is between 20 and 20000 Hz.

Sound waves with a frequency below 20 Hz are called infrasound; sound waves with a frequency above 20000 Hz are called ultrasound.

The sound waves of a tiger's roar are infrasound.

The frequency of its sound waves is concentrated between 14 and 18 Hz, which happens to be within the frequency range of infrasound.

Infrasound waves are extremely penetrating and can travel over long distances.

The so-called tiger roaring in the mountains means that when a tiger roars, the sound can shake several mountaintops, which shows how terrifying the distance its roar can travel.

Moreover, according to research, the sound waves of a tiger's roar can penetrate the human skull and the alpha waves of the brain, causing resonance, leading to electric shock illusions and nerve paralysis in humans.

Even the powerful penetrating power of a tiger's roar can affect the physiological reactions of small animals around it, causing them to suffer cardiac arrest.

At the same time, tigers can also sense earthquake precursors through infrasound waves and respond and issue warnings in advance.

"The roar of a tiger is actually infrasound!" Sasuke Umino was shocked and his heart was burning with excitement.

The tiger-like summoning beasts in the ninja world have been greatly improved in all aspects under the influence of chakra, and the infrasound waves in the whistling sound are naturally no exception.

Now it seems that the so-called illusion-like deterrent power of the tiger summoning beast is probably because the infrasound waves in the roar are blessed by chakra, which makes the effect even more terrifying.

Sasuke Umino compared the experimental data and conducted further research, and found that it was just as he had guessed.

"Luckily, we have experience developing ultrasonic waves for water bats, otherwise we would really be bankrupt this time."

Tiger-type spirit beasts are generally quite powerful, and there are many institutions conducting research in this area. The demand is huge, so their prices are naturally high. This is also the front line, so if you want to buy a tiger-type spirit beast, you have to pay a considerable premium.

Now with the previous experience in developing water bat ultrasound and the relevant research materials in his hands, he has a lot of things to think about.

Having discovered such a good new research direction, Umino Sasuke naturally immersed himself in it and couldn't extricate himself.

For a long time afterwards, whenever he had free time, he would go to the underground laboratory. Fortunately, he had some information that could be placed in sealed scrolls, which he would slowly read one by one while patrolling the defense zone.

……

"That's all for today's research."

Umino Sasuke stretched, filed all the research results of the day, and then rushed to the patrol post without stopping.

It took more than ten minutes to finally return to the patrol post.

"Captain, you're not going to the military base's stock exchange to have fun again, are you?"

Tekudo walked over with a lewd smile on his face and sniffed Umino Sasuke's body fiercely, but it was full of the smell of disinfectant.

Umino Sasuke took out a small bottle of Water Bat No. 6, threw it over, and scolded angrily: "If you still want these little cuties in the future, then shut up."

"Okay, I'll shut up, right now."

Shujiutang stroked the bottle of poison in his hand and couldn't let it go, as if the bottle contained not poison but his little wife.

Seeing Umino Sasuke coming back, Inuzuka Ryo and Xiao Xiao were familiar with the place and immediately started cooking.

Umino Sasuke continued to be in charge of fishing, and he drained the pond dry. Now he was the only one who could catch the golden croaker.

Tekudo, on the other hand, carried a large wooden barrel, stepped on the surface of the river, and practiced treading water downstream.

"The art of infrasonic radar."

Umino Sasuke stood on the river, formed a tiger seal with his hands, and began to sense.

Soon, several golden gong fish were found hiding in the deep pool on the right.

"shock!"

Umino Sasuke put his hands together in the Tiger Seal, and a completely invisible infrasound wave silently rushed into the deep pool.

A few seconds passed.

A large number of fainted freshwater fish appeared on the surface of the river, including several golden gong fish.

(End of this chapter)