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Incorporated, a worldwide network of science museums and related institutions.
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The most famous source for 'flow-tracing fluid' is the Kalliroscope
Corporation: http://www.kalliroscope.com/

For the exhibits I produce, I've started buying 'Pearl Swirl' from Steve
Spangler Science: http://www.stevespanglerscience.com/product/1218 who have
provided an excellent service.

Practical hints. Be aware that the particles settle quite quickly, leaving
you with a clear liquid. This is no problem for designs where the whole mass
of water is stirred up by being spun round. Also consider how your design
will deal with the inevitable air bubbles. A flat-topped enclosure may be
less problematic to make than a dome or sphere, and still looks pretty good.
If you do go for a dome, it doesn't need to be completely full of liquid.
Reduce the volume and weight by constructing another smaller dome inside.
The smaller you make this exhibit, the easier it is to manage, so don't
design it any bigger than necessary.

Promoting public engagement with science
through a contagious delight in phenomena
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Give people facts and you feed their minds for an hour.
Awaken curiosity and they feed their own minds for a lifetime.
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Ian Russell 


-----Original Message-----
From: Informal Science Education Network
[mailto:[log in to unmask]] On Behalf Of Mario Martinez
Sent: 28 January 2009 23:29
To: [log in to unmask]
Subject: RV: Turbulence liquid formula

ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related
institutions.
****************************************************************************
*

Hello everybody.
 
We at Planetario Alfa in Monterrey Mexico, want to fabricate a Turbulence
Table or a Sphere. Does somebody know the formula to prepare the liquid
inside this kind of exhibits? I will thank this information,
and any other tip that may help us to make a good exhibit.   Thanks in
advance for your help. 
 
Mario Martinez

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