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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Flinn Scientific sells Ultraviolet Detecting Beads.  The beads turn to
bright colors when exposed to UV light and return to white when removed
from the UV light source.  These are a hit with kids and adults.

>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related institutions.
>*****************************************************************************
>
>Hello fellow list members,
>   Does anybody know of a good material that rather quickly reacts to bright
>light? I don't know if this exists, but something like it would be perfect
>for an activity we are planning.  Ideally this material wouldn't react to
>room-intensity light, but if a flashlight hit it, it'd change color or
>something.
>   I know I am making this up entirely, but if there is something close I
>know you all will know about it.
>Oh, and it's gotta be safe around kids, of course.
>Thanks for any help you can offer.
>-mike k
>
>        Michael Kerkman
>        Botanical Educator
>        The Huntington Library, Art Collections, and Botanical Gardens
>        1151 Oxford Road
>        San Marino, CA 91108
>        626-405-3586
>        [log in to unmask]
>
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Kate
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Kate Hintz
Science Museum of Minnesota
Collections Gallery Manager
120 West Kellogg Blvd.
St. Paul, MN  55102

651-221-4508
651-221-4528 (fax)
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Witness an 8,000-mile journey that shaped a nation on the Omnitheater's
giant screen. "Lewis & Clark: Great Journey West" is now playing at the
Science Museum of Minnesota. Call (651) 221-9444 for reservations.

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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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