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We used a mineral oil with the same viscosity as water for some overhead
water tanks in Science Storms at the Museum of Science and Industry. Saved
a lot of grief as we avoided issues of evaporation coating the class,
possible mold growth, messing up the electronics, etc. The fabricator was
Lexington in L.A.

Rachel

On Thu, Apr 4, 2013 at 3:39 PM, Cricket Brooks <[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.
>
> *****************************************************************************
>
> Hello all -
>
> I'm looking for technical information on how to incorporate hydraulics as a
> mechanical force within a non-"water area" exhibit.
>
> In other words, I want to use water or other liquids to move things, but I
> don't want anyone or anything to get wet in the process.  I want the liquid
> to be both safely enclosed and visible to visitors.
>
> I've seen hydraulic fluid used in a number of exhibits - the one that comes
> to mind is a representation of the circulatory system where kids pump the
> "blood."  In that case, I guess the fluid is moving, but not necessarily
> causing anything else to move.  Either way, I can't remember where I've
> seen it.
>
> Please respond with recommendations of exhibits you've seen where this has
> been successfully achieved, or with any tips or warnings you feel I should
> keep in mind.
>
> Thanks a bunch,
> Cricket
>
> Cricket Brooks
> Exhibits Manager
> DuPage Children's Museum
> Naperville, IL
>
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