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The song of the dunes

submitted by notarobot

7 years 10 months 2 weeks ago

The song of the dunes introduced by Stéphane Douady. Since Marco Polo this strange sounds that can be heard in some deserts fanscinates. Here Stéphane Douady shows the different sounds that can be made, as soon as this singing sand it is sheared, with the hand, the feet, or in avalanches. Recorded on a singing dune in Morocco. A movie from Etienne Chaillou and Mathias Thery.

/YT

Any theories as to why this happens?

2 Comments

shagen454

says...

Love me some sand dunes. I've heard low droning sounds while out in Guadalupe sand dunes in central california and in Death Valley. I remember researching why and there were some theories - something about grain size (changes pitch), friction & amplification from a layer of moisture below the surface and sand collision upon the surface creating vibrations that in turn create a feedback loop of low frequency. Stony stuff, lol!