The subject of physics is so broad and profound, just a sound wave involves a lot of knowledge.

In order to study this, Xiao Yao's knowledge of the space following system evil complement sound waves.

After really following the intelligent robot to study the sound wave, I can't help but be full of interest in this research, if you can really study it, this thing is quite useful.

When a person is unprepared, he or she may feel uncomfortable or damage the hearing system in an environment where there is audible sound with a volume of more than 120 decibels.

When the volume rises above 150 decibels, people in this environment will experience eardrum rupture, bleeding, hearing loss, and even mental disorders.

After research, it is found that infrasound waves are not easy to attenuate, not easy to be absorbed by water and air, and the wavelength of infrasound waves is often very long, so it can diffract around obstacles like electromagnetic waves, and the killing range is large, but it is difficult to control the direction.

The high-power infrasound waves can cause strong resonance in the internal organs, causing nausea, headaches, difficulty breathing, and even causing blood vessels to rupture and damage to internal organs. The effect of high-power ultrasonic waves is similar to that of infrasound waves, but the transmission direction is better than that of infrasound waves, almost propagating in a straight line, easy to control, and the straight line penetration ability is strong, but the killing range is small.

Conventional sonic weapons do not use sound waves in the human audible frequency range because infrasonic waves and ultrasound waves are highly concealed.

Infrasonic weapons can be divided into two categories, one is a neurological infrasonic weapon, whose oscillation frequency is very similar to the rhythm of the human brain, and when it resonates, it will strongly stimulate the human brain, making people nervous and crazy.

The other type is internal organs-type infrasonic weapons, whose oscillation frequency is similar to the natural oscillation frequency of human internal organs, and when resonance occurs, it will cause severe pain in people's internal organs, and even cause abnormalities in the human body until death.

Xiao Yao felt that it would be better to get an infrasonic light self-defense weapon first.

When Professor Xu organized the sonic experiment for a week, Xiao Yao digested the knowledge he had learned, and then began to make a light sonic weapon according to the manufacturing method on the sonic self-defense weapon.

The equipment in the research institute is complete, and while everyone is eating, Xiao Yao assembles the remaining parts by himself in the laboratory.

It took a week to make all the parts and assemble them.

When the sonic weapon was in his hand, Xiao Yao: "Can this weapon make people temporarily incapacitated?" ”

"Don't you know if you take the water cup next to you for an experiment?" The system replied lazily

"It's a good idea, I'll try it first."

Xiao Yao pressed the switch on the water cup on the table with a sonic weapon, and suddenly there was a "bang", and the water cup on the table flew out upside down and fell to the ground, shattering the glass slag to the ground.

"System, doesn't it say that it will only make people uncomfortable, if this is a person, I'm afraid it can't be done, such a close distance." Xiao Yao looked at the water cup on the ground in horror

"You worry about yourself first." A machine-like voice came from my head

Hurried footsteps sounded at the door of the laboratory, and the security personnel in military uniforms quickly surrounded the laboratory, and seven or eight soldiers with loaded guns and ammunition walked in, vigilantly looking at every corner of the laboratory.

Looking around, I saw Xiao Yao staring at them blankly, holding a strange-looking thing in his hand, which didn't look like a gun.

The laboratory is a very important place, and it is their duty to pay close attention to any bit of wind and grass, which is to protect scientific researchers.

As soon as there was a noise, the security personnel outside reacted quickly to ensure that the researchers were not harmed at the first time.

Xiao Yao subconsciously raised his hand and said, "I didn't do anything." ”

After all, it was the sound that I made

Professor Xu is still drinking tea in the lounge, which is what he likes to drink after dinner every day to refresh himself, and he hurried to the laboratory when he heard the sound

Seeing Xiao Yao raise his hand and stare there, he asked, "Xiao Wang, what's going on, Xiao Yao is my research assistant." ”

The soldier surnamed Wang replied: "I don't know if we didn't tell him to raise his hand, but I heard the movement and came in to check it." ”

"What's the matter with Xiao Yao, what are you doing with your hands raised." Professor Xu wondered

"I just did an experiment, and they came in with a noise." Xiao Yao replied honestly that he really didn't do anything bad.

Professor Song naturally saw the strange weapon in Xiao Yao's hand, as well as the shattered glass slag on the ground.

"Are you stressed?" Professor Xu suspected that Xiao Yao's experiment had failed, so he brought the water cup to vent his anger.

Xiao Yao heard this, and immediately shook his head again and again and said, "Professor, I just really did an experiment." ”

Xiao Yao picked up the infrasonic weapon he had studied: "If you don't believe it, I'll give you an experiment." ”

So he pressed the switch on the other water cup next to him.

With a "bang", the glass shattered and flew upside down the moment it touched the sound wave.

The moment he heard the voice, the guards reached to their waists, clutched their weapons tightly in their hands, and waited for the captain's order.

Captain Wang didn't make any moves, he had heard of Xiao Yao, the pride of the scientific research community, otherwise he would have won it just after entering the laboratory, this person also asked the old chief to praise him by name, knowing that this little guy had made something terrible.

"Martial law will be imposed on the laboratory, and no one in the laboratory will be allowed to go out, nor will anyone be allowed to come in, and no information will be transmitted to the outside world." Captain Wang gave orders to the soldiers around him.

Professor Xu hurriedly ran over, and then nervously picked up the sonic weapon in Xiao Yao's hand, his hands trembled with excitement, and in an instant he saw the doorway, this little guy made an infrasonic weapon, turned his head and studied it for a long time without seeing a magazine or anything like that, and then said: "Xiao Yao, this is really a sonic offensive weapon?" ”

"What just came out was the sound wave." Xiao Yao replied

Professor Xu was about to test Xiao Yao's sonic weapon himself, only to see him press the switch on the last water cup on the table, and the water cup shattered and flew out upside down like the previous two.

Professor Xu's eyes instantly wet, and gently stroked the infrasonic weapon,

"Professor, are you alright?" Xiao Yao asked

Hearing Xiao Yao's inquiry, Professor Xu suddenly patted Xiao Yao's shoulder lightly and laughed: "Hahaha, it's amazing that you really live up to the name of the proud son of the sky, your head is indeed different from ordinary people." ”

Xiao Yao was confused, and at this time, the researcher was blocked by the soldiers at the door of the laboratory, and he couldn't enter without Captain Wang's order.

Soon, more than a dozen soldiers walked in and took the infrasonic weapon in Professor Xu's hand, and Xiao Yao hurriedly left the laboratory with the information in his hand.

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