this post was submitted on 23 Apr 2024
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Sound is vibration. We typically think of it as vibration transmitted through air (to get to your auditory canal), but it doesn't have to be. Sound vibration can be conducted through your bones (which your auditory canal is enclosed in) so you can hear without something being in your ears because the sound gets inside you through a different medium.
Do you have an electric toothbrush? Turn it on and bite down with your teeth on it. Notice how it gets MUCH louder? Thats the sound traveling through your jawbone (and skull) to get to your auditory canal.