Date: Mon, 19 Mar 2012 14:35:57
Author: George Herold
Subject: Re: echo tube
Thanks Stan, That's perfect. AJP 39/6 pg 610 (1971) by Frank Crawford
> -----Original Message-----
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> [mailto:firstname.lastname@example.org] On Behalf Of Stan Dodds
> Sent: Monday, March 19, 2012 12:54 PM
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> Subject: Re: [tap-l] echo tube
> Try looking up culvert whistlers in AJP. There are several
> articles, starting with Frank Crawford's about 1975.
> Stan Dodds
> On Mar 19, 2012, at 11:14 AM, George Herold wrote:
> > Hi taper's, So I assume most have you have heard an echo tube.
> > http://exs.exploratorium.edu/exhibits/echo-tube/
> > Clap into one end and you get a 'weird' echo. What's the physics
> > explanation?
> > (I'm thinking maybe some dispersion of the higher frequency modes?)
> > Thanks,
> > George