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(meteorobs) Fireball Sounds Revisited
Just wanted to pass on some more information I received about the thread we
had going a while back about intervals between the appearance of a fireball
and associated sounds. According to Andre Knoefel of FIDAC:
>...but a fireball produce also VLF-waves (4..8 kHz). In the case
>these waves strikes on metallic or di-electric bodies, you will be able to
>hear the sound simultanously or a few seconds after the event. Normally, the
>time lapse between the event and the sound is >60s (>20 km = >12 miles).
>
>There is an article in S&T 49 (1975) pp. 87-91 by D.O. ReVelle about the
>sounds from meteors.
Does anyone still have a copy of the S&T article Andre mentions?
Mark Davis
MeteorObs@charlestondot net