"JoeSpareBedroom" > wrote in
:

> Another woman I know spent several hours on the web, researching the
> idea that it was impossible for a duck's quack to echo. The research
> ended when my son, who just finished AP physics, laughed (mostly at
> her) and explained why the idea was so goofy.


That was a MYTHBUSTER (Discovery Channel cable TV show) myth and there
was an imperceptable echo, IIRC.

Should've married HER!

Andy