How this works (if somebody cares ) "The standing waves which are producing the patterns in the powder only occur at the resonant frequency of the plate, and its harmonics. As the frequency is tuned to higher harmonics, the pattern becomes more complex because more wavelengths, and therefore more nodes and anti-nodes, fit on the plate because as the frequency increases, wavelength decreases. You can also hear the sound intensify when it reaches a harmonic."

Rating:

Tags: cool, awesome, sound resonance, wavelength, experiment, frequency, science, harmonics