> This is shown by the observations that only meteoroids that > penetrate below > this height make a sonic boom.Since the satellite you mentioned > would have been > at at least 150Km, it seems unlikely to be source of the whooshing > sound you heard. > The length of the time delay you quoted is really what kills your > explanation though. A delay of 25 seconds implies a distance of some > 9Km, > as the speed of sound is about 330 meters/second. In my time as a meteor observer, I recall that some observers reported hearing noises only a few seconds after the meteor burnup. Obviously, it could not be sound. There is no definitive answer (NASA does zero research in meteors. It basically ignores the entire field.), but the latest theory is an electrostatic event. Electricity travels near the speed of light (about 98%, I think - electricity has mass - electrons). However, it is well known fact that when bolides (the detonations of large meteors; they make very bright blips in the sky) can be heard. It takes the sound eight minutes to reach your ears. The light takes about 0.00027 seconds to reach your eyes. A perfect example of the differing speeds of the two. Jonathan Wojack tlj18@juno.com ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj. ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Mon Jun 05 2000 - 13:12:28 PDT