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What's Shakin' in the Ear?

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Science  16 Jun 2000:
Vol. 288, Issue 5473, pp. 1954-1955
DOI: 10.1126/science.288.5473.1954

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Auditory researchers agree that hair cells are the ear's miniature amplifiers. They just don't agree about how the curious devices work. The two most popular ideas--one involving chemically activated trapdoors, the other cells that pump like pistons--both have been boosted by recent research.