Learn The Science Of How To Break A Wine Glass With Your Voice

Normally wine glasses only get broken after we’ve had too much chardonnay, but in movies they also shatter when an opera singer hits that big last note. That theatrical flourish isn’t some Hollywood hogwash however, because you really can break a wine glass with your voice, especially if you know the science behind it…and have the stamina to sing long enough.

The Physics Girl Dianna Cowern’s newest video explores her attempts at hitting the right note — literally — to make a wine glass break, while explaining the science behind how it is possible. It has to do with a wine glass being an oscillating system, which in the simplest terms means it vibrates. If you match its resonant frequency (the note it vibrates at when you flick it), you can make it break it if you hold the matching note loud and long enough.

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