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[i]Only then did the shockwave reach the press site 16,000 feet away, traveling through the ground and the air. Staccato bursts, rapid and thunderous, shook the small wooden grandstand, rattled its corrugated iron roof and pushed in the plate glass window on the Columbia Broadcasting System's new mobile studio...
Engineers estimated the noise reached about 120 decibels at the press site, the equivalent of a piston-engine airplane warming up only a few feet away. The "threshold of pain" for loud noises, they said, was 135 to 140 decibels.[/i]
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