Date: Fri, 15 Mar 2002 15:01:32 -0700

Author: Duane Warn

Subject: Re: POISSON'S (ARAGO'S) SPOT

Post:

Eric,

What song and dance do you do with Poisson's spot? Is it just a demo,
or do you use it as an optics lab? If so, is there any chance of a
write-up?

Duane
Boise State U.

>>> dcjohnson@csupomona.edu 03/15/02 12:42PM >>>
Eric,
What size of laser and lens do you use and at what distance to the
projected image? ...Doug J.
>
>Sounds complicated. How about just gluing a penny to a piece of
>glass? That's what I've been doing for the last few years. I expand a
>laser, shine the shadow on the wall as described here. It works well!
>
>Eric
>--
>
>+--------------------------------------------------------------------+
>| Dr. Eric Ayars ayarer@wwc.edu
|
>| Assistant Professor of Physics, Walla Walla College (509) 527-2476
|
>| http://homepages.wwc.edu/staff/ayarer
|
>+--------------------------------------------------------------------+

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