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Everything You Should Know About Sound

Everything You Should Know About Sound

By View All Posts Tim Urban

When you think of sound waves, you probably think of something like this:1But that’s not how sound waves work. A sound wave is more like an earthworm situation:2Like an earthworm, sound moves by compressing and decompressing. Since the low pressure can’t go any lower, that point determines the max amplitude of a sound wave, and the loudest a sound can be, in any given place. The concept of sound is by definition a biological being’s perception of the pressure wave—and if there are no ears around to perceive the pressure wave, there’s no sound. Decibelcar.com: Decibel Equivalent TableMake it Louder: Ultimate Sound Pressure Level Decibel TableNASA: Sound Suppression Test Unleashes a FloodIdiom Zero: How Loud is the Sun?