How loud is too loud when it comes to whistle tweets? Referees and others using whistles on the job need a simple way to determine whether it's harmful to their hearing, so a group of researchers set out to put it to the test and to provide some clarity and damage risk criteria for impulse noise exposures.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science http://bit.ly/2VCPlRq
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