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Date: | Fri, 17 Oct 2008 15:18:15 -0400 |
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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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Hello,
We are working on a new stream table and are wondering what medium you found to be most useful; walnut shells, sand, or something? What are the advantages and disadvantages of each.
What method do you use to resurface /re-level the material on the table? Do you have an automatic system that flushes the table ever so often or are you not concerned with leveling it?
Thank you,
Donna
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Donna Claiborne
Exhibit Project Manager
[log in to unmask]
Franklin Institute
222 N. 20th Street
Philadelphia, PA 19103
215.448.2370 (P)
215.448. 1188 (F)
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