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This Acoustic Tractor Beam Can Levitate Small Objects With Sound
The device allows researchers to float and manipulate targets with just a single array of ultrasound emitters
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A basis for understanding guitar sound | C.F. Morrison Guitars
Sympathetic Magic or Why the resonances of a guitar matter © Charles F. Morrison, Luthier For a good explanation of the physics principles involved in this
cfmorrisonguitars.com
