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Date: | Sat, 30 Sep 2006 12:12:23 -0500 |
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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On 9/29/06 2:44 PM, "jeff courtman" <[log in to unmask]> wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
>
> we've been using rheoscopic fluid from Kalliroscope. our fluid seems to
> settle out, sometimes in as little as 12 hours. sometimes it will stay in
> solution for several days, unagitated.
>
> we've been told precipitation could be do to water contamination
> (bacterial?).
>
> any insight, comments, alternate source material, etc. would be appreciated.
>
> Jeff Courtman
> Exhibits & Special Projects Coordinator
> 251.208.6851
> Exploreum Science Center
> www.exploreum.net <http://www.exploreum.net/>
>
>
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I suggest filling the exhibit with a bleach water mixture, let it pump thru
for several hours (if this exhibit uses a pump), drain, rinse, & refill with
clean water, let that pump thru, drain & refill with distilled water &
rheoscopic fluid & bacterial stabilizer. Make sure there's no metal contact
with the fluid.
This procedure has worked well for us in our flow tunnel exhibit.
Good luck!
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More information about the Informal Science Education Network and the
Association of Science-Technology Centers may be found at http://www.astc.org.
To remove your e-mail address from the ISEN-ASTC-L list, send the
message SIGNOFF ISEN-ASTC-L in the BODY of a message to
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