Science

Ghosts are Sound Waves just Below the Human Hearing Range
April 17, 2017
Entertainment

Ghosts are Sound Waves just Below the Human Hearing Range

Sometimes, you get the feeling that something is crossing on your sight. Could these kinds of ghosts be sound waves, just below the human hearing range? The sound is basically mechanical energy in the form of a pressure wave with crests and troughs. Vibrations create a disturbance in the surrounding air and ripple outward,...

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