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Hello all!
Here's a page that a comrade sent me ~ I haven't had a chance to make one
myself, but am salivating at the chance to!
http://www.fysikbasen.dk/flametubeENGLISH.php
Here is an interesting way to use electric toothbrushes to show off standing
waves (and another way to do the Ruben tube)-
http://www.how2.co.uk/2006/musical_flames.html
And excellent use of the term "doohickey"!
If you make one, please send around some photos and some lessons learned ~
I'd be much obliged!
Best wishes and happy buildin'-
Sam
--
Sam Dean
Director of Special Programs
Fort Worth Museum of Science and History
1501 Montgomery Street
Fort Worth, TX 76107
817.255.9302
www.fortworthmuseum.org
> From: Jonah Cohen <[log in to unmask]>
> Date: Fri, 2 Feb 2007 17:30:51 -0500
> Subject: Re: A Song of Fire
>
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
>
> FYI, the doohickey Jane refers to below (howdy n hi, yourself, Jane!) is
> available from Flinn Scientific - they call it the "singing tube", and
> you can get 1 or a set of 3 of differing lengths. Pretty sweet, and easy
> to use with a small propane blowtorch from your friendly hardware store.
>
>
> I suspect harder to engineer the much bigger tube with a row of holes
> drilled into it. To this tube, you put a membrane + speaker on one end,
> connect the other to a bbq-style propane tank, turn it on and light up a
> row of flames out of the holes. Then, different pitches form visible
> sine waves of fire. Google "Ruben Tube" and you'll find plenty of videos
> of this on YouTube.
>
> I fear that variables like tube length + diameter + material, plus size
> of/distance between the holes will have to be precise, dagnabit.
>
> Jonah Cohen
> Outreach & Public Programs Manager
> The Children's Museum
>
> "If you hear only one song this year, there's something terribly wrong
> with you."
> -They Might Be Giants
>
>
> -----Original Message-----
> From: Informal Science Education Network
> [mailto:[log in to unmask]] On Behalf Of Jane Snell Copes
> Sent: Friday, February 02, 2007 3:39 PM
> To: [log in to unmask]
> Subject: Re: A Song of Fire
>
> ISEN-ASTC-L is a service of the Association of Science-Technology
> Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> ************************************************************************
> *****
>
> There's not much to it: a piece of schedule 40 pipe, a way to hold
> it over a flame (ring stand with a heavy base and a clamp that can
> get hot), and the flame. You can also use a piece of 4" stove pipe.
> If you have a copy of Let's Try It, it's called the Hoot Tube. I've
> seen them made with bits of screen wire poked in the lower end, but I
> don't believe it's necessary. I used to work in the
> high-temperature furnace field, and the "acoustic load" on
> large-diameter, heated ceramic tubes is quite large--they can tear
> themselves apart with the heat-induced vibrations.
>
> We tried touring it with the Traveling Experiment Gallery (hi Jonah)
> using a propane torch, but it was hard to ship the propane cylinder
> and it seemed a bit hazardous with the general public. Cheers from
> frozen Minnesota, Jane
>
>> I'm looking into some demos on sound, and unsurprisingly was intrigued
>> by the Ruben's Tube, a contraption hat displays sound waves using fire,
>> as seen in this video:
>>
>> http://www.youtube.com/watch?v=UR8rZMKlIq4
>>
>> A quick google check reveals many similar videos, but little info. Does
>> anyone have any schematics for building one, tips for usage/safety/how
>> it works? We're hoping to build a version portable enough for outreach.
>>
>> Thanks.
>> Jonah Cohen
>> Outreach & Public Programs Manager
>> The Children's Museum
>>
>> "On blind faith they place reliance,
>> what we need more of is science"
>>
>> -MC Hawking
>
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