Researchers have found a few key factors that booming sand dunes have in common, including sand grains that are round and uniform in size, as well as layers of sand with different water content. Under the right conditions, loose sand will avalanche, transforming potential energy into kinetic and acoustic energy and producing a booming sound.
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Publicado por: Teachers Domain
A beautiful extreme long shot of the U.S. Capitol building's West Front is shown from across...07/19/2011 - 7:10pm