A very cool illusion!

[emw]

I was just thinking - I wonder if this works (or how this works) if you're color blind? Calling Doctor Q...

 

[sushi]

I was just thinking - I wonder if this works (or how this works) if you're color blind? Calling Doctor Q...

Good question.

Paging the good Dr. Q.

 

[exeterbohemian]

That's cool. But I have one that is personally my favorite, open the link with iTunes or something in the back and once you stare at the gif file for a while, close the window with command+w to really get the most out of the effect.

http://www.yoism.org/?q=node/73

that. is. lsd.