Originally posted by the Voice of America.
Voice of America content is produced by the Voice of America,
a United States federal government-sponsored entity, and is in
the public domain.


                                Sonic Adventure

   Our planet is speaking to us, if we would just stop and listen, says
   Trevor Cox, an acoustic engineer at the University of Salford in
   England.
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   [1]http://www.voanews.com/media/photogallery/1881491.html

References

   1. http://www.voanews.com/media/photogallery/1881491.html