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"A Duck's Quack Doesn't Echo, and no-one knows the reason why?" ... "A duck's quack doesn't echo" is a much quoted scientific myth. In spring 2003 it was quoted on Home Truths on BBC Radio 4 and Shooting Stars on BBC 2. You can listen to our sound files on Home Truths by going to the BBC4 web site and "listening again".
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www.acoustics.salford.ac.uk/acoustics_info/duck/
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"A Duck's Quack Doesn't Echo, and no-one knows the reason why?"; ... "A duck's quack doesn't echo" is a much quoted scientific myth. In spring 2003 it was quoted on Home Truths on BBC Radio 4 and Shooting Stars on BBC 2. You can listen to our sound files on Home Truths by going to the BBC4 web site and "listening again".
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www.acoustics.salford.ac.uk/schools/lesson5/lesson1p2.h...
www.acoustics.salford.ac.uk/schools/lesson5/lesson1p2.htm
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Does a duck's quack echo? ... Claim: A duck's quack doesn't echo, and no one knows why. Status: False.; ... The winner (so far) of the Most Ludicrous Entry contest is the claim that a duck's quack doesn't echo. Unfortunately, it's also the item we're most frequently asked about.
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www.snopes.com/critters/wild/duckecho.htm
www.snopes.com/critters/wild/duckecho.htm
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"The three of us certainly quacked, though, such that we thought we might want to change the name of the experiment from 'does a duck's quack echo' to 'how to make three humans quack like a duck.' We tried to be inconspicuous, since school was in session and students could see us.
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www.straightdope.com/columns/read/1090/is-it-true-a-duc...
www.straightdope.com/columns/read/1090/is-it-true-a-ducks-quack-wont-echo
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Urban legend: A duck's quack doesn't echo: straight dope bottle caps questionable sources cecil adams fruit drink ... The obvious question -- and the one never answered by those who tout this absurd factoid, of course -- is, why wouldn't a duck's quack echo?
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urbanlegends.about.com/library/bl_ducks_quack_echo.htm
urbanlegends.about.com/library/bl_ducks_quack_echo.htm
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Is it true that a duck's quack doesn't echo? If so, why? Asked by: Matt Schonert ; Answer; I'm sorry to say that it's not true about the quack of a duck. Quacks echo as much as any other sound in nature. ... However, there is a way to avoid an echo, the problem is that it depends on your distance from the object reflecting...
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www.physlink.com/Education/AskExperts/ae482.cfm
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Physlink.com explains how an extremely clever duck might avoid creating an echo at all. If the distance between the duck and a reflective surface falls exactly at one of the nodes of the quack's sound wave, sound will not be reflected back, thus no echo.
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ask.yahoo.com/ask/20021002.html
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You are here: Home > Things to See and Do > Things to See > Does a duck's quack echo? > ... They found that a duck's quack does echo, but it is quite hard to hear the echo because of the quality of the quack sound. A sound that fades in and out (like a duck quack) makes an echo which can become mixed up with the original...
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www.sciencemadesimple.co.uk/page29g.html
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One view: Claim: A duck's quack doesn't echo, and no one knows why. Status: True, but only in caves. The myth A duck's quack certainly does echo around in a reverberation chamber, so a duck's quack does echo, which leads to the most interes...
http://wiki.answers.com/Q/Does_the_quack_of_a_duck_echo
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