In operating a homemade electrostatic motor with the use of a Vandegraf generator, where do I get the charge opposite to that on the isolated sphere? I've tried attatching to the base, then the base without the ground plug plugged in. Still, no strong opposite charge for the opposite stator. Help please!
Brad M. Katuna 
"When the jumper's falling, I'm tough to stop. It just doesn't fall much anymore...."
>From: "Pinhole Listserv"
>To: "Pinhole Listserv"
>Subject: Pinhole Digest #454 - 09/07/00
>Date: Thu, 7 Sep 2000 00:20:01 -0700
>
>Pinhole Digest #454 - Thursday, September 7, 2000
>
> Cheap Kaleidoscope Camera
> by
> Re: Pinhole bad sci jokes
> by "ck demchuk"
>
>
>----------------------------------------------------------------------
>
>Subject: Cheap Kaleidoscope Camera
>From:
>Date: Wed, 6 Sep 2000 03:47:30 EDT
>
> >From David Lauter:
> > I have two requests.
> > Does anyone know how to make a kalidescope that could be atached to a
> > camera?
> > Also I would like to start compiling a list of dumb biology jokes. Send
> > the jokes in. They need not be good, but should be classroom friendly.
> >>
>A simple kaleidoscope may be made with microscope slides taped together in a
>triangular shape. You do not need to use mirrors as the surface reflects
>perfectly due to the high angle of incidence. Put these in a cardboard tube
>that you spray paint the inside black. You can also use two black plastic 35
>mm film containers taped back to back as an alternative. A cut down small
>round translucent 35 mm film can may be used for the selected materials you
>wish to view. Put clear food wrap over the end facing the "mirrors" so the
>"stuff" won't fall out. Even better is a small round plastic box with white
>paper attached. The box may be opened and new materials may be introduced at
>any time. The whole kaleidoscope assemblage should go on the end of a
>"macro" lens that will let you focus down to about 2.5 cm. If you do not
>have this you may rig a magnifying lens at the viewing end with another
>length of cardboard tubing to let a normal 35 mm camera focus up close. All
>the "close up lens" sold in camera stores for 35 mm cameras are simply
>magnifying double convex lens like grandma's reading glass. Now
>theoretically a very fine hole in a pinhole camera would work just fine as
>there would be no lens focal length to worry about.
>
>Check with the Exploratorium Snack Books about building your own kaleidoscope
>which is where I think I found the design using microscope slides.
>
>Best wishes to the Pinhole List and to you David..............
>
>----------------------------------------------------------------------
>
>Subject: Re: Pinhole bad sci jokes
>From: "ck demchuk"
>Date: Thu, 07 Sep 2000 03:57:19 GMT
>
>David,
>What's the difference between a marine biologist and a dog?
>One's a whale tagger and the other a tail wagger
>- from the Holt Life Science text, I kid you not.
>
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