Message-Id: <3.0.32.19970903193900.006f9e24@icefog.polarnet.com>
Date: Wed, 03 Sep 1997 19:39:07 -0800
To: pinhole@exploratorium.edu
From: "J. Lahr" <jlahr@polarnet.com>
Subject: Exploratorium Eye Exhibit
>The "eye" exhibit over the enterance of the Exploratorium illustrates
>a very interesting effect, but I think most visitors miss the point of it.
>
>Perhaps more would experience the effect if two "guide" lights, one
>to the right and the other to the left of the vertical "eye" lights were
>placed on the wall. The right and left guide lights would be turned
>on and off alternately and timed such that if you keep
>shifting your gaze to look at the lit guide light you will see the "eye"
>pattern "painted" on your retna. The perceived width of the "eye" pattern
>would depend on the distance between the "guide" lights.
>Does anyone think this would (or would not) work?
John
-- * John C. and Jan H. Lahr * * jlahr@polarnet.com * * P.O. Box 83245, Fairbanks, AK 99708 * * (907) 474-7997 * * http://www2.polarnet.com/~jlahr * * http://giseis.alaska.edu/Input/lahr *