Live broadcast of popular science about Emperor’s Mausoleum, ancient emperors were furious

[Inconspicuous but invisible, killing people is invisible, and defeating aircraft carriers is not a dream? How strong are sonic weapons in the new era?]

Once you see the title of the video.

Zhu Yuanzhang suddenly became interested.

"New weapons so soon?"

"Sonic weapons?"

"What is this?"

"Boss, fourth, do you have any ideas?"

Zhu Yuanzhang looked at Zhu Di and Zhu Biao next to him.

Zhu Di scratched his head embarrassedly.

"Hey, hey, I don't know. "

"But judging by the name, it's supposed to be a weapon made of sound?"

Zhu Biao agrees with this view.

"I think so too. "

"I think it's similar to the weapon my mother uses. "

Zhu Yuanzhang was immediately happy.

"What do you mean?"

"Could it be that your mother is still involved with the advanced weapons of later generations?"

Facing Zhu Yuanzhang asked.

Zhu Biao explained seriously: "Dad, do you remember that when you made your mother angry, your mother would punish you with a very fierce tone. "

"Every time you can't stand it, you end up giving in. "

Zhu Yuanzhang coughed twice in embarrassment.

"When did this happen?"

"We don't know. "Five-seven-seven"

Zhu Biao and Zhu Di looked at each other and smiled.

The brothers remembered some interesting stories from their childhood.

At that time.

Zhu Yuanzhang has not yet established the Ming Dynasty, and he is always very arrogant, and it is inevitable that there will be some behaviors that anger Queen Ma.

And Queen Ma is not used to Zhu Yuanzhang.

Every time Zhu Yuanzhang came home, Queen Ma would yell loudly.

"Heavy Eight !!"

The voice was heard clearly through several doors.

Zhu Biao and Zhu Di will always hide aside and secretly watch the excitement.

watched Zhu Yuanzhang being chased by Queen Ma and running around the courtyard.

Arguably.

Zhu Yuanzhang is only afraid of one attack in his life.

That was Queen Ma's voice.

Therefore.

Zhu Biao felt that this kind of sonic attack in later generations should be similar to Queen Ma's voice.

And right now.

On the canopy.

The video starts playing.

[In martial arts novels, there are often invisible sonic attacks that kill people, such as the lion roar of the Golden Retriever Lion King, and the blue sea tide song, etc. 】

[But do you know? The unique stunts in today's martial arts novels have entered reality and are widely used in the military weapons of various countries. 】

[He is an acoustic repellent, commonly known as a sonic weapon.] 】

[When we describe sound, we usually use two units, decibel and hertz. 】

[These two units are not the same. 】

Decibels are used to describe the intensity of sound, which is what we often call the volume of sound. 】

[Hertz represents the frequency of sound waves, which is used to describe the pitch of a sound.] 】

[The high and low pitch often mentioned in the chorus refers to the pitch of the pitch. 】

[The frequency of sound waves that can be received by the human ear is between 20~20,000 Hz. 】

[Anything below 20 Hz is called infrasound, while anything above 20,000 Hz is called ultrasound.] 】

[When the frequency of sound waves is below 20 Hz, or above 20,000 Hz, the human ear cannot hear the sound.] 】

[But they can all cause serious harm to the human body.] 】

[What weapons are currently mainly divided into infrasound weapons, noise weapons and ultrasonic weapons.] 】

[When it comes to the other two categories, noise weapons are the mildest.] 】

[It mainly uses high-frequency noise in the frequency range that can be heard by the human ear to interfere and strike at the enemy. 】

[Sharp and harsh noises bring physiological reactions to people, which may disturb or paralyze the central nervous system or auditory system, resulting in rapid heartbeat, dizziness, tinnitus, confusion and even temporary coma.] 】

[Most of these sonic weapons are non-lethal.] 】

"I see, it's called a noise weapon. "

"Second brother, when you roared angrily on the Changban slope, you scared Cao Cao's million-strong army away, it should be this kind of noise weapon. "

Liu Bei watched it with relish.

I can't help but think of the time when I was in Nagasaka a few years ago.

I'm almost in a desperate situation.

And Zhang Fei was on the bridge of Changbanpo, one man and one horse, and single-handedly blocked Cao Cao's million-strong army.

He can do this because he has a loud voice.

A roar.

One of Cao's generals was so frightened that he died on the spot.

Cao Cao, who was extremely suspicious, stopped there.

This allowed Liu Bei to escape.

"Big brother, when you say that, it's true. "

Zhang Fei grinned.

"It's not just that Nagasaka Slope roared angrily, but when I was marching and fighting, I was in front of the charge and won a hundred battles, mainly because of my loud voice. "

"With a cold roar, the enemy's vanguard will be timid, and at this time rush forward and poke him in the heart with a shot!"

Zhang Fei was very happy to sum up his experience.

Every time he charged.

When in close contact with the enemy, he will habitually roar. (If you read a violent novel, go to Feilu Novel Network!)

Almost every enemy who fought with Zhang Fei would be startled and subconsciously timid.

This trick has been tried and tested.

It has become Zhang Fei's unique stunt.

Before, he thought he was just a simple loud voice.

Now I know.

It turns out that this is also a unique weapon.

"General Zhang has such a stunt, which is really a blessing for my Han. "

Zhuge Liang shook the goose feather fan and praised with a smile.

Zhang Fei was even more proud.

His eyes widened, and he looked at the canopy carefully, trying to see if there was a way to enhance his noise weapon.

On the canopy.

The video continues to play.

[The Noise weapon is the least damaging of all sonic weapons.] 】

[On the contrary, infrasonic weapons are the most lethal.] 】

Infrasound waves, also known as subsound waves, have a frequency similar to the biological rhythm of the human body, so they will have a strong resonance with the internal organs of the human body. 】

[It can cause headaches, nausea and even difficulty breathing in the human body, and it can directly resonate with the internal organs at low frequency and cause the internal organs to rupture, thus killing people invisibly.] 】

[So basically infrasonic weapons are deadly.] 】

[Normal sound waves are in an open place outdoors, and during the transmission process, they will be dispersed and propagated, and absorbed by different objects. 】

[However, infrasonic waves are not only not easy to disperse and attenuate, but also not easy to be absorbed by air and water. 】

[So he can even diffract around obstacles like electromagnetic waves.] 】

[At the same time, the wave lines of infrasonic waves are still very long and difficult to control, so the killing range is very large.....]

[Compared with infrasound, ultrasound is relatively easier to master. 】

[The transmission direction of ultrasonic waves is better than that of infrasound waves, and almost all of them propagate in a straight line, which is not only easy to control but also has strong penetrating power. 】

[Relatively speaking, the killing range is also smaller than that of infrasound.] 】

[Therefore, ultrasonic weapons are both non-lethal and lethal.] 】

How powerful are sonic weapons?]

[France began to study sonic weapons after World War II. 】

[They ordered scientist Vladimir Gavreo to build a war robot as fast as possible to compete with nuclear weapons.] 】

[To this end, Gabrio took a group of top scientists in France at that time and secretly hid in a building in Marseille to build a laboratory. 】

[The research of robots has just entered the right track, but strange things have happened. 】[]

[All of the researchers involved in the experiment experienced dizziness and nausea during the same time period.] 】

[Therefore, the research work had to be suspended.] 】

[In addition, the top doctors in France were invited to treat the team, but the doctor's diagnosis and treatment results proved that there were no obvious abnormalities in all the physical indicators of everyone. 】

[What's even stranger is that the doctor himself experienced the same symptoms of dizziness and nausea after entering the building.] 】

[This has to make people suspect that there is something wrong with this building. 】

[Gabrio accidentally discovered that if he opened a few of the building's closed windows, everyone's symptoms would be much better.] 】

[So, of course, they suspect that there is poisonous gas in the building.] 】

[However, the test results still show that the air in the building is very clean.] 】

[There is no way, the researchers can only inspect every machine in the building.] 】

[Finally they focused on an air conditioner.] 】

[After many tests, it was found that as long as the air conditioner is not turned on, everyone is fine. As soon as I turned on the air conditioner, I was sick and sick. 】

[Gabreo was puzzled, until one day suddenly 5.5 flashed into the light and suspected the air conditioning motor. 】

[Could it be that the motor emits something that cannot be seen or touched?]

[Gabrio quickly organized a team to conduct experiments, and he found that whenever the air conditioning motor runs at a certain speed, it can produce sound waves of less than 20 hertz, causing everyone to vomit for hours.] 】

[Infrasound waves of 7 Hz can resonate with human organs.] 】

[Fortunately, the infrasound waves emitted by the air conditioning motor are not too strong, otherwise everyone would not just be dizzy and nauseous. 】

[Gabreo has his eyes on infrasound, and after many tests, he has also mastered the data such as the penetration power of infrasound, the range of influence, and the degree of damage. 】

[So, he proposed that it would be a brand new weapon that was no less lethal than a nuclear weapon!]

Datang.

The palace hall was silent.

Li Shimin and the civil and military officials of the imperial court were all fascinated.

"It's really interesting. "

"Ultrasound, infrasound, there are still sounds in this world that people can't hear, and they can cause great harm to people. "

"The people of later generations are so geniuses that they can even use this kind of thing as a weapon. "

"It's breathtaking. "

Li Shimin was amazed.