Externet Posted January 10, 2005 Share Posted January 10, 2005 Hello everyone... Sound propagates in air at 340m/s by the sucessive compression/expansion of the highly compresible gas medium due to soundwaves; ¿ How do solids propagate sound with such diminished compressibility ? ¿ What is the typical range of sound progagation speed in plain soils ? Much faster ? And further ? and with less attenuation ? ¿ Are earthquakes detected by microphony or motion transducers or both ? There was once a web site and group dedicated to sense underground noises, I would appreciate any clues to locate it. Thanks, Miguel Link to comment Share on other sites More sharing options...
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