Called the "Rotating Turtles" illusion, this static image appears to move in front of your eyes to the extent you can become dizzy looking at it!
I was just reading the latest "High Resolution" newsletter from Veritas et Visus (which is Latin for "Truth and Vision"). The reason I was interested is that I have an article in this issue, but that's not what I wanted to tell you about...
While skimming through the newsletter, I ran across one of the most amazing visual illusions I've ever seen. Called the "Rotating Turtles" illusion, this static image appears to move in front of your eyes. In fact, it appears to move so much that you can become dizzy looking at it.
I immediately contacted the editor – Mark Fihn – and he pointed me in the direction of the Department of Psychology, College of Letters, Ritsumeikan University, Japan.
The portion of this site in which we're interested here is known as Akiyoshi's Illusion Pages. Created by Professor Akiyoshi Kitaoka, these illusions are simply mind-blowing. I have never seen anything like them. In fact, they are so powerful that the page comes with a warning saying:
This page contains some works of "anomalous motion illusion", which might make sensitive observers dizzy or sick. Should you feel dizzy, you had better leave this page immediately.
I'm still reeling at what I've just seen. How can these images create such a perception of motion? I am totally intrigued. I will have to investigate further. If you visit this site, it would be great if you were to email me to tell me what you think (but please do be careful to not look at the images too long, and stop looking at once if you feel dizzy and/or uncomfortable).
Questions? Comments? Feel free to email me – Clive "Max" Maxfield – at firstname.lastname@example.org. And, of course, if you haven't already done so, don't forget to Sign Up for our weekly Programmable Logic DesignLine Newsletter.