http://beckerexhibits.wustl.edu/did/20thcent/part2.htm

Winning the War Against Hearing Loss, part 6: Mega-power without feedback

So far in this series I’ve discussed Kim, David, and Dr. Judy. Improvements in hearing aid technology and the skill of the audiologist have made it possible for each of these people to continue working despite deteriorating hearing that was pushing them to find another career. Today I introduce Sam, a machinist, who has very…

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