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The science behind Singing Sand Dunes

submitted by Ornthoron

1 decade 3 years ago

"Some sand dunes can “sing”, but not because of the wind! When loose sand slides down over harder, packed sand, a standing wave is formed, causing the entire surface of the dune to vibrate on a single frequency. We hear this as a musical note - typically an E, F, or G."
-via Fuck Yeah Fluid Dynamics