[photo-3d] Optical Illusion

[Gabriel Jacob <3-d@xxxxxxxxxxxx>]

Here is a wicked illusion I ran across that is rather impressive.
Download and run the following small 22k program.
http://www.eyetricks.com/Optical.exe

Description from the web site mentions,
The amazing pinwheel is one of the better interactive eyetricks
out there. This trick involves downloading a simple program
(pinwheel.exe). Download this file and run it from the directory in
which you indicated the file be saved. The pinwheel will appear
on your screen at this time. Stare directly into the center of the
pinwheel for 60 seconds. Then immediately look away from the
screen and at the back of your hand. This trick is very amusing.
Try looking at other things in the immediately vicinity as well!
Have fun!

You can also look at the wall or anything else. I won't give away
the surprise but it is really something not to be missed.  Try it,
you'll like it!

P.S. It's sort of a 3-D illusion since whatever your going to stare
at afterwards IS 3-D!

Gabriel