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The chosen one
The hissing noise is actually a re-emission of EM radiation from when the bolde exploded. Nearby metal acts as an antenna and re emits sound that is audible to the select few. Had a similar experience at a SPSP several years ago and my hearing is not brilliant. Typically the bolides explode about 10 miles up, so sound should take 50 seconds to reach earth. The light flash takes less than a tenth of a millisecond. Cherish your ability to hear the re-emision from metal- you are one of the chosen ones.
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