The pain threshold for your ears is approximately 140 decibels. A jet engine up close is 160 decibels; a lawn mower 100 decibels.(www.voiceacademy.org)
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February 2008The pain threshold for your ears is approximately 140 decibels. A jet engine up close is 160 decibels; a lawn mower 100 decibels.(www.voiceacademy.org) Comments are closed. |
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