The old saying that a duck's quack produces no echo is... well, just plain quackers. Daisy performs: The anechoic chamber has no sound reflections Acoustics expert Professor Trevor Cox has deployed ...
LONDON, England --A British study has debunked an urban myth -- that a duck's quack does not echo. A farmyard duck called Daisy was at the center of the acoustic research, carried out at the ...
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