Akiyoshi's illusion
 

Look at the wheels how they are turning at Akiyoshi's illusion pages. And no, it is not flash, nor animated gif!

http://www.ritsumei.ac.jp/~akitaoka/index-e.html

cool - very subtle

Brilliant, gonna turn it into my wallpaper now!

that's pretty neat

Love it- the illusion of the eye

Trippy, nice find.

nice- my eyes started trippin' off the bat

Hah, I was just thinkin' the same exact thing...

Now anytime I have somebody come over I can have them think they're going crazy in front of my computer. Oh what a wonderful tool. ;)

As a side note, that's pretty amazing how your eyes can play tricks on you like that based on just a simple design.

wow. my printer is down right now, I was wondering if this is and RBG via light thing or if the same exact thing was painted on a wall would it have the same effect?

I dont see why they wouldnt if you can get them to print on single sheet of paper that would be cool. I was thinking the same thing.
These things are neat that first one the wheels turning but as soon as you focus on one it stops and others around it look like they turn.

argh, I need whiskey for my eyes...

It works on plain paper as well. I found it in my Wired magazine, then I followed the link to the site.