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Eric,

Two thoughts.  

You could check the suppliers for the road repair industry.  I think they
use that type of mechanism in some road repair signage.

Also, there is an artist named Drew Klotz who produced something very
similar for an interactive art installation called "Pop Dots."  He was
working with spheres.  Each side of the sphere a different color (he
customized colors for the install.)  The spheres where set in a substrate
and visitors would manipulate their color orientation manually.  The spheres
were quite small and so would give rather fine "resolution" to your
characters.

Good Luck!

Sara 


‹‹‹‹‹‹‹‹‹‹‹‹‹‹‹

Sara DeAngelis
Project Manager/Exhibit Developer
Core Natural Science
Brooklyn Children's Museum
145 Brooklyn Ave.
Brooklyn, NY 11213


p. 718 230-8874
c. 718 578-8269
e. [log in to unmask]



On 1/16/04 12:49 PM, "Eric Siegel" <[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:
> 
> Now for something completely different!  We are looking for a source of
> the kind of signs that are made of disks, perhaps three inches across,
> that are bright yellow on one side and black on the other.  The display
> is made up by servo motors that flip the disks to make characters.  We
> want to use this as an output device for an interactive of the Game of
> Life, the simple cellular automata program.
> 
> We need a solid field of these about 30x50.  Any ideas?
> 
> Eric Siegel
> Director of Planning
>  & Program Development
> Connections Project Director
> New York Hall of Science
> 47-01 111th Street
> Queens, NY 11368
> [log in to unmask]
> www.nyscience.org
> 
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