I have a riddle for you, how can something NOT be true, be widely belived, and yet NOT be a myth? The widely distributed belief that a duck's quack doesn't echo has its basis in reality, and yet it isn't true.
Ian Woolf once again shows us that things aren't always what they seem. The duck tape of the sitting duck disproving quackery can be found at the University of Salford Acoustic, Auditory and Video department website www.acoustics.salford.ac.uk