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 ...

IT is one of those scientific pearls of wisdom that tend to be quoted after several pints: a duck's quack does not produce an echo, and no one knows why. IT is one of those scientific pearls of wisdom ...

The world is full of unproven "facts". You'll hear them in a pub after a few drinks with some mates. You will probably read them in an email from a well-meaning friend within the first month of your ...

Everything is just ducky when Auntie Lily brings Daisy Duck and her baby brother, Pip, to the feeding pond. ""Now we can make as much noise as we like."" Yet when a feathered crowd descends, and they ...

Daisy the duck has helped a professor of acoustics solve the puzzle of whether quacks echo, Europe's largest general science meeting will be told today. " 'A duck's quack doesn't echo, and no one ...