this post was submitted on 11 Sep 2023
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Not an expert but iirc: Materials have a resonant frequency. If they are exposed to a sound of this frequency, the object will start to vibrate pretty strongly. If the sound is loud enough and hits the frequency well enough, it can cause such strong vibrations that the object breaks.
This is how people are able to break wine glasses using their voice.
However, I would think that different parts of a human body have different resonant frequencies so it probably wouldn't work quite as well. Also, human tissue isn't particularly resonant.