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A Few Interesting Facts.....
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http:// en.wiki pedia.o rg/wiki /Britne y_Galli van
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If you want to know whether a duck's quack echoes or not, you simply need to place it in an echo chamber with some recording equipment. Who would do that? The University of Salford, of course ;-)
http:// www.aco ustics. salford .ac.uk/ acousti cs_info /duck/
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Mythbusters also checked it out.
http:// mythbus tersres ults.co m/episo de8
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