Earth to Luna - Most people think that a duck's quack doesn't echo, but that's not actually true. A duck's quack does echo, it's just usually hard to hear! Want to find
![Did You Know? on Twitter: "A duck's quack doesn't echo, and no one knows why. http://t.co/iOvDf4a4F0" / Twitter Did You Know? on Twitter: "A duck's quack doesn't echo, and no one knows why. http://t.co/iOvDf4a4F0" / Twitter](https://pbs.twimg.com/media/CJK16YBWsAAY0Id.jpg)
Did You Know? on Twitter: "A duck's quack doesn't echo, and no one knows why. http://t.co/iOvDf4a4F0" / Twitter
![LampShopOnline on Twitter: "#WednesdayWisdom A duck's quack doesn't echo, and no one knows why https://t.co/Ngizztbthl" / Twitter LampShopOnline on Twitter: "#WednesdayWisdom A duck's quack doesn't echo, and no one knows why https://t.co/Ngizztbthl" / Twitter](https://pbs.twimg.com/media/C50w9s2WUAA_hp-.jpg)
LampShopOnline on Twitter: "#WednesdayWisdom A duck's quack doesn't echo, and no one knows why https://t.co/Ngizztbthl" / Twitter
![Daisy the duck quacks into a microphone held by Professor Trevor Cox at the University of Salford, Greater Manchester, where Professor Cox disproved the myth that a duck's quack doesn't echo. Acoustic Daisy the duck quacks into a microphone held by Professor Trevor Cox at the University of Salford, Greater Manchester, where Professor Cox disproved the myth that a duck's quack doesn't echo. Acoustic](https://c8.alamy.com/comp/G6G2D1/daisy-the-duck-quacks-into-a-microphone-held-by-professor-trevor-cox-G6G2D1.jpg)
Daisy the duck quacks into a microphone held by Professor Trevor Cox at the University of Salford, Greater Manchester, where Professor Cox disproved the myth that a duck's quack doesn't echo. Acoustic
![Daisy the duck quacks into a microphone inside an acoustic chamber at the University of Salford, Greater Manchester, where Professor Trevor Cox disproved the myth that a duck's quack doesn't echo. Acoustic Daisy the duck quacks into a microphone inside an acoustic chamber at the University of Salford, Greater Manchester, where Professor Trevor Cox disproved the myth that a duck's quack doesn't echo. Acoustic](https://c8.alamy.com/comp/G6G2CY/daisy-the-duck-quacks-into-a-microphone-inside-an-acoustic-chamber-G6G2CY.jpg)
Daisy the duck quacks into a microphone inside an acoustic chamber at the University of Salford, Greater Manchester, where Professor Trevor Cox disproved the myth that a duck's quack doesn't echo. Acoustic
![MythBusters on Twitter: "Does a duck quack echo? Only if you can get it to make a sound... http://t.co/gTNn7QQ49U http://t.co/xeW1ZJC89k" / Twitter MythBusters on Twitter: "Does a duck quack echo? Only if you can get it to make a sound... http://t.co/gTNn7QQ49U http://t.co/xeW1ZJC89k" / Twitter](https://pbs.twimg.com/media/CGgdReWWgAAZTO5.jpg)
MythBusters on Twitter: "Does a duck quack echo? Only if you can get it to make a sound... http://t.co/gTNn7QQ49U http://t.co/xeW1ZJC89k" / Twitter
![Do duck quacks echo? Simon Foster chats about new science show | Imperial News | Imperial College London Do duck quacks echo? Simon Foster chats about new science show | Imperial News | Imperial College London](https://www.imperial.ac.uk/news/image/featurenews2012/21137.jpg)