Musical sand characterization
Keywords:Acoustic emission testing, Acoustics, Fluorescence, Sand, X rays, Singing sands
AbstractIt is concluded from the experiments that a combination of several agents is responsible for the musical sand phenomenon. In individual cases the presence of too much water, of finely divided material, or of grain angularity has a deleterious effect; but dry, clean and rounded grains by no means always sing and some sands with presumed high moisture content do sing. It is likely that musicality is mediated by a very specific grain-grain surface interaction to which individual grains systems can be tuned in a variety of ways.
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