(a) Open-shutter photograph of fireball EN09121418 taken by Dr. Spurny (coauthor) at the Czech Fireball Network. (b) Intensity at a slant distance of 100 km for fireball EN091214 from Dr. Spurny. The CFN radiometers have flat response below 5 kHz. Intensity curves from different fireballs are in supplementary section. (c) Fourier transform of intensity-time history along with the normalized gain of the human ear for reference.
When a meteor is about to conk your neighborhood and gives fair warning by emitting sizzling, rustling and hissing sounds as it descends, you might think that the universe is being sporting...
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