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Thanks for pointing out the work of Paul De Marinis, that is beautiful!
Eric Siegel
Executive VP
Programs and Planning
NY Hall of Science
47-01 111th Street
Queens, NY 11368
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718 699 0005 x 317
www.nyscience.org
On Jan 17, 2006, at 3:03 PM, jason jay stevens wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology
> Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> **********************************************************************
> *******
>
> I took part in an exhibition in Germany back in 1999 that included
> a fantastic giant pyrophone built by Bastiaan Maris, consisting of
> 12 pipes, twelve to twenty feet tall, each. The controller was a
> simple stack o' cams, each switched to one of the pipes.
> Soniclally, the experience reminded me of sitting at the edge of a
> pond back home in Michigan, at sundown, listening to the frogs.
>
> While on the subject--or, rather, while gradually getting
> tangential to the subject--check out the work of Paul De Marinis, a
> sound artist at Stanford. I've not seen "Firebirds," personally,
> but it sounds out-of-this-world: controlled electrical fields
> modulate gas flames housed in birdcages, producing the sound of
> famous twentieth century political speeches! Too much!
> http://www.well.com/~demarini/exhibitions.htm
>
> jason jay stevens
> [log in to unmask]
> www.potterbelmar.org
>
>
>
> On Jan 17, 2006, at 12:28 PM, Ian Russell wrote:
>
>> ISEN-ASTC-L is a service of the Association of Science-Technology
>> Centers
>> Incorporated, a worldwide network of science museums and related
>> institutions.
>> *********************************************************************
>> ********
>>
>> No harm in attempting a simpler solution, before getting into the
>> complexity of Schlieren optics. Set up a burning candle just below
>> the top of the organ pipe, illuminate it using one of those low-
>> voltage desk lamps with a tiny halogen bulb, and cast the shadow
>> of the hot air above the flame onto a large white card. The
>> further from the flame you put the lamp, the sharper (and dimmer!)
>> the shadow.
>>
>> If that prototype works, it could save a lot of hassle. If the
>> sounding organ pipe shows no effect on the swirling hot-air-
>> shadow, then the much clearer Schlieren pattern probably wouldn't
>> show the effect you need either!
>>
>> Pieces of dangling tissue paper must be the easiest possible
>> solution. But wondering if low notes would cause the candle flame
>> itself to move gives me another idea. Why not experiment with gas
>> flames mounted close ABOVE the open ends of SEVERAL organ pipes?
>> It's just possible that the flames might be made to dance with the
>> music, which would be utterly awesome...
>>
>> You could easily prototype this with an ordinary gas blowtorch set
>> to a gentle, luminous flame, held above a sounding organ pipe.
>>
>> Hey! I just typed 'flame organ' into Google and discovered that a
>> flame organ or Pyrophone was invented by Frederic Kastner in the
>> 1800's. There's a whole shedload of stuff about these things. The
>> clever ones actually controlled internal flames to generate the
>> sound, while less subtle versions apparently shot coloured flames
>> out of the top. How cool is that? (Rats! Anyway, it's quicker to
>> post a message to ASTC-L than it is to file a Patent...)
>>
>>
>> [log in to unmask] * http://www.interactives.co.uk
>> *
>> Give people facts and you feed their minds for an hour.
>> Awaken curiosity and they feed their own minds for a lifetime.
>> *
>> Ian Russell
>> *********************************************************************
>> **
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