Leo Lichtman wrote:

Arch, I just got through testing the strobe idea, and I think it will
help. I chucked a 16" wooden ruler approximately midway in the jaws of a
spigot
chuck, so it was spinning like a propeller. Using the strobe, I was able
to
make the image stop, or drift in either direction. I was able to read the
numbers on the ruler even with the room lights on.

My main concern is whether you can find a strobe light like this. Mine is
probably 40 or 50 years old--I got it as a junk or surplus item, and I
believe this is actually the first time I have used it. I'm sure there
are new units available, but at what price?

Froogle "strobe -scanner -scan light party" and there are a bunch of hits.
Seem to be going around $30 and up.

Popular party item apparently. Rat Shack used to carry them but they don't
seem to have them anymore.

--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)