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Originally Posted by shredder
if you do post them! probably sounding really stupid now  ....but is this true?
A ducks quack doesn't echo, and no one knows why?
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i just felt like confusing myself more than usual today! |
The duck's quack not echoing is one of those internet myths / urban legends.
See these links amongst others.
http://www.acoustics.salford.ac.uk/a.../duck/duck.htm
http://www.physlink.com/Education/AskExperts/ae482.cfm
http://news.bbc.co.uk/2/hi/science/nature/3086890.stm