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Half a Bubble Off Plumb
Drives: 2009 Yaris Sedan Join Date: Mar 2009
Location: Bristol, Tennessee, USA
Posts: 1,593
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They happen fairly regularly. Also, when the U.S. put satellites up to monitor for the flashes of atmospheric nuclear tests, they found a lot of false alarms, some of which initially caused diplomatic concerns. Eventually they realized they were seeing large meteors/small stony asteroids exploding in the upper atmosphere with energy levels on the order of A-bombs! These natural airbursts were long kept secret. I saw an article on them in an astronomy magazine in the early '90s, and noted that one had gone off right over Kingsport, Tennessee in the early '70s. I lived in nearby Johnson City and knew nothing of it. Many of those explosions went unnoticed because of cloud cover, people mistaking them for lightning, etc. A far larger similar event flattened a huge forest in Tunguska in 1908.
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