For those who would like to hear the sound of the dunes :
http://www.lps.ens.fr/~douady/SongofDunesIndex.html . Franck Frydman , Paris

----- Original Message -----
From: "Leslie Allen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, October 20, 2006 5:36 AM
Subject: Singing Sand? Singing Beaches?


> One of our fellow shell collectors (Ms. Rusti Stover)
> who is also a Psamophile (sand collector)
> sent me this to pass on to you all.
>
> Some sands will actually "sing", or make noise.
> Often referred to as "singing" or "booming" sand, this rare sand produces
> a
> tone when walked on or blown in the wind. Some sands will even create
> sparks of
> light at night when walked on or driven across. The sand's sound waves are
> caused by the friction between the grains of this sand's unique
> crystalline
> structure. Singing sands are becoming harder and harder to find as modern
> pollution tends to coat the sand particles and destroy its ability to
> produce
> sound. At the time of writing this, singing sand can still be found on
> every
> continent of the world.
> .Internet source re sand info, from about 4 years ago.
>
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