I understand how sound waves work and how humans perceive sound. I don’t understand how a persons speaking normally has enough to power to vibrate something as solid as a wall to the point that we may even discern what someone is saying.
In: Physics
In a still bathtub, drop a single drop of water….. see how the ripples keep going? A single drop of water doesn’t seem like much energy, but it’s enough to displace all the water around it when it falls…. Then all that displaced water moves the water next to it just a little bit at a time until a ripple covers much of the surface.
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