Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: yor_on on 05/11/2018 17:56:56

Title: Why doesn't a duck's quack echo?
Post by: yor_on on 05/11/2018 17:56:56

Saw it on the telly today, given as a fun fact?

(waiting for the doctor:)

Is it true? If so, why?

Title: Re: Why doesn't a duck's quack echo?
Post by: alancalverd on 05/11/2018 18:02:57

It's a lie.

Title: Re: Why doesn't a duck's quack echo?
Post by: Bill S on 05/11/2018 18:33:13

Alan is right.  Seems science agrees, as does my recollection of childhood experiences on a farm.

This is for those who might still doubt. :)

 http://www.acoustics.salford.ac.uk/acoustics_info/duck/

Title: Re: Why doesn't a duck's quack echo?
Post by: chris on 05/11/2018 20:25:27

It's incorrect. Trevor Cox did the experiment to prove that a duck's quack does echo (https://www.thenakedscientists.com/articles/interviews/record-breaking-whoopee-cushions) about 15 years ago.

He explains it in the above link.

Title: Re: Why doesn't a duck's quack echo?
Post by: yor_on on 05/11/2018 21:02:49

Thanks a lot all. It sort of bugged me, and was the only thing worth remembering too :)
Watching that telly I mean

Title: Re: Why doesn't a duck's quack echo?
Post by: chiralSPO on 05/11/2018 22:53:08

Ironically, the claims made by quacks appear to reverberate through history, cropping up again every time the proof of their fallacy has faded from society's collective memory...