Date: Fri, 08 Feb 2002 15:48:18 -0700

Author: Jerry DiMarco

Subject: Re: Demos which make students gasp!


At 2/8/2002 04:04 PM, you wrote:
>What's the glass, microscope slides?

This assembly predates me, but it appears to be regular 1/8" glass
pane cut to 2 3/4" x 7 1/2"...

>What's wedged in at one end, paper? How thick? How about the other end?

One end has nothing between, the other end has what appears to be a
strip of lens cleaning tissue. It is quite porous as viewed through a 10X
microscope. The binder clips supply the necessary squeeze...

>What's the reason for the light tent? What happens if you take the light tent

The light tent creates a large, diffuse light source. Without it,
you see rings only where there is a direct reflection of the light
source. Try it under a typical fluorescent ceiling light with a diffuser
and you'll see what I mean...



Jerry DiMarco
Manager of Lecture Demonstrations and Instructional Labs
Physics Department, Montana State University
Bozeman, Montana
ph: 406-994-6161
fax: 406-994-4452

Our Motto: "We don't use anything the way it was meant to be used"