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"Please don't throw your mind away" by TsviBT

LessWrong (Curated & Popular)

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Guitar Chamber - How Does It Make It Sound Louder?

The hollow chamber of an acoustic guitar makes the sound of a plucked string fuller. But how could the chamber make the sound louder? Isn't all the energy that's bleeding off from the vibrating string already being emitted as sound waves? How does whistling work? Or speaking, or howling wind?

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