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Sound is a pressure wave -- the air moves back and forth at high frequency. Continuous sound doesn't provide any sort of push. An "impluse" sound, such as turning a speaker on, will produce a small force initially, but not a continuous force.
Try doing a bit of research to find out quantitatively just what the pressure variation is for a typical sound wave. Then multiply that by the area you plan to use for your hoverboard. That will tell you the force that "could" be exerted, and you can compare that to the mass (weight) involved. Come back and let us know what you find.
Posted:Jul 28, 2010
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