Date: Mon, 19 Mar 2012 14:35:57

Author: George Herold

Subject: Re: echo tube

Post:

Thanks Stan, That's perfect. AJP 39/6 pg 610 (1971) by Frank Crawford

George H.

> -----Original Message-----
> From: tap-l-owner@lists.ncsu.edu
> [mailto:tap-l-owner@lists.ncsu.edu] On Behalf Of Stan Dodds
> Sent: Monday, March 19, 2012 12:54 PM
> To: tap-l@lists.ncsu.edu
> 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
>
>



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