> While it SHOULD be impossible to hear meteorites as you see them due to > their distance away and the time it takes for sound to travel there is > a significant body of observed "hearings" by competent observers. > The mechanism is debated but it is suspected that some form of radio > or low frequency electrical signal may be produced by the very large > energy involved in creating the ionised meteorite trail and these > signals may be detected by the human ear or associated nerve cells. > WERE this true, these signals the meteroites produce would be DIRECTLY receivable by any number or receivers in widespread use today - as well as on a spectrum analyzer attached to a wideband receiving antenna (such as a FET-based 'active' antenna). The human ear/body is certainly *not* more sensitive to any EM (RF) produced by meteorites than any of today's modern-day receiving apparatus ... therefore I rather doubt that these 'observers' are picking up any EM waves directly produced by meteorites (otherwise, MANY longwave, Loran C and Omega transmissions would be 'heard' and likely 'mask' these meteorite signals ...) RF Jim -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu