ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

Eric:  Great use of youtube.  Seeing the overhead projector reminded  
me of a simple project David Sanders created for The Science Place  
(through the Exploratorium's/NSF staff training project).

Dave build a small plex container, about 2 inches high, and about the  
size of the projecting area, creating a very simple, easy-to- 
manipulate ripple tank.  I think we used a small squeeze bulb (about  
the size we used to use to clean our children's noses). You can  
create puffs of air, or you can drip drops of water into the 'tank'  
and the wave patterns are quite visible.  You can obviously add  
simple cut out acrylic shapes to look at reflections, etc.
Very nice and very simple use of shadows to help make the invisible  
visible.

I give a second big thumbs down to ambient music.  Another reason,  
besides staff insanity, is needing a volume control that responds to  
ambient sound level in the room.  Doable, but do you really want to?

Loved the play idea of making structures and feeding into the wind  
silos.  I would probably want to put some of these shapes on a stick  
(like the cutouts) so they could be studied a bit more as they  
turned.....

Thanks for the chance to kibbitz and kudos for your staff for  
offering this up for critique!
	




***********************************************************************
For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.

Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.

The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit
http://www.lsoft.com/LISTSERV-powered.html.

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
[log in to unmask]