> 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. I believe the term you mean is "electrophonic". As you mentioned, bright bolides can produce electrophonic sounds that are more-or-less coincident with the meteor observation. The theory is that electromagnetic waves interact with metallic objects on the ground (near the observer) which then act as transducers. Thus the end result is sound, but the sound waves have not had to travel very far. --Rob ----------------------------------------------------------------- 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
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