And why is it about 343 ms/s in air?
In: Engineering
That’s how fast wiggly air causes it’s neighbor to wiggle, because that’s the speed of sound through air.
Sound travels through solid objects waaaay faster since the atoms are closer together. When an atom vibrates, it shakes all the stuff around it. That’s sound propogating through the stuff. Sound travels through air in the exact same way, but there’s more space between the atoms so there’s more lag between an atom shaking and it shaking it’s neighbors.
Because that’s what sound is: Vibrations.
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