Thanks to everybody for your response regarding our microscope prototype. We're not able to use Wentzscopes because of our particular application, but there were also lots of other great ideas and leads which I will pass on to the developers. Thanks again, Bill ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ William H. Stirrat (Bill) Audience Research Coordinator Exhibit Development Science Museum of Minnesota 30 East 10th Street St. Paul, MN 55101 phone: 612/221-9442 fax: 612/221-4514 [log in to unmask] As always, opinions expressed are my own. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Bye!