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February 28, 2018 01:00 pm PST

Learn how to break a glass with your voice

Mike Boyd of Learn Quick shows how to tune your voice to the resonant frequency of a glass and break said glass using only the unamplified human voice. (more…)


Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/WZwpDSawHCI/learn-how-to-break-a-glass-wit-2.html

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