The 4th harmonic - shining star


An acoustically resonant object usually has more than one resonance frequency, especially at harmonics of the strongest resonance. It will easily vibrate at those frequencies, and vibrate less strongly at other frequencies. It will "pick out" its resonance frequency from a complex excitation, such as an impulse or a wideband noise excitation. In effect, it is filtering out all frequencies other than its resonance.

The book is profound and even after purchasing it in the late ‘70’s and frequent reading, I am still discovering new ways the harmonic principles can be applied.


The 4th Harmonic - Shining StarThe 4th Harmonic - Shining StarThe 4th Harmonic - Shining StarThe 4th Harmonic - Shining Star

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