[time-nuts] Whispering Gallery-Mode....??

[Jim Lux]

At 10:02 AM 4/24/2008, you wrote:
>In message <002601c8a604$43d8f0b0$2181a8c0 at APOLLO>, "David C. 
>Partridge" writes:
> >>From the paper:
> >>From the paper:
> >
> >"... can be understood by comparison with the optical concept of "total
> >internal reflection," or by the acoustic "whispering gallery"phenomenon
> >experienced in large circular halls."
> >
> >The classic whispering gallery is in St. Paul's Cathedral, London.   If you
> >stand near the wall on one side, you can hear someone standing in a similar
> >location on the other side even when they talk very quietly - hence the term
> >whispering gallery.
>
>
>It was my impression that the resonators which operatte in WG mode
>uses the _other_ pecularity about whispering galleries, an effect
>very few people even know about, reasons which will be obvious in
>a moment:
>
>Empty the entire gallery of as much absorbant material as possible,
>including people and their clothes.


Fascinating stuff..


See also a paper by Georg Essl in Acuostics Research Letters Online 
[DOI:10.1121/1.1929347]

"Whispering" waves and Bate's ridges in numerical experiments

He refers to some papers by Rayleigh (hey, how often do you get to 
cite Rayleigh in a paper?)