演唱：松本口森（Matsumoto Koumori）
作词：化学之国、松本口森（Matsumoto Koumori）
作曲：化学之国
From the universe to the animals
Sound waves are everywhere
Whether it's infrasound waves from elephants
Or ultrasonic waves from bats
This is also a part of physical acoustics
When you see a herd of elephants fidgeting
Don't hesitate it's an earthquake coming
This is because they can hear infrasound
But we also need to know that this thing is harmful to people
But on the basis that elephants can hear it
Maybe it's the inspiration of earthquake detectors
Making according to the structure of animals is called bionic
This is equivalent to a one-to-one copy
When you are close to the bat but there is no sound
This is normal After all it can hear ultrasonic waves
From the universe to the animals
Sound waves are everywhere
Whether it's infrasound waves from elephants
Or ultrasonic waves from bats
This is also a part of physical acoustics
A part of physical acoustics
Involved in many aspects
I almost forgot the range of these two sound waves
This has to mention the knowledge about tones
If the hertz value is less than twenty
Then such a tone is collectively called infrasound
So if it's greater than 20 thousand hertz
We collectively call it ultrasound
This tone can be heard by many animals
Not only us bats but also others can do it
If you have studied music theory or acoustics
It's easier for you to understand the content
From the universe to the animals
Sound waves are everywhere
Whether it's infrasound waves from elephants
Or ultrasonic waves from bats
This is also a part of physical acoustics
At this point of tone it includes the sound frequency
Different animals have different ranges
Some animals make sounds that humans can't hear
The reason is related to the listening range
It can be inferred that I sing at a low frequency
I'm a bat and my vocal frequency is just high
Next time if I hear anything
It may be the sound from radar
This is a bionic function based on bats
Where the frequency is parallel to this
From the universe to the animals
Sound waves are everywhere
Whether it's infrasound waves from elephants
Or ultrasonic waves from bats
This is also a part of physical acoustics
