In message <[EMAIL PROTECTED]>, Hal Murray writes:
>
>> You start as low as go can and sweep slowly upwards until you suddenly
>> hit a resonance of quite startling intensity.
>
>Neat. Thanks.
>
>
>The Exploratorium has a linear version. It's an amazing toy. (They call it
>an exhibit.)
>
>It's
At 10:02 AM 4/24/2008, you wrote:
>In message <[EMAIL PROTECTED]>, "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
> >expe
> You start as low as go can and sweep slowly upwards until you suddenly
> hit a resonance of quite startling intensity.
Neat. Thanks.
The Exploratorium has a linear version. It's an amazing toy. (They call it
an exhibit.)
It's a hollow tube, 3m dia, 20m tall. Rather than sweep the frequ
In message <[EMAIL PROTECTED]>, "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
>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
Hello, Time-Nuts--
I have skimmed through a very interesting review publication
of whispering gallery-mode oscillators
< http://tinyurl.com/6qsr5k >
but I do not see any concise explanation of why they are referred
to with the rather strange name of "whispering gallery-mode"
Can anyone give me
