The Sciences

Hidden circles illusion

Bad AstronomyBy Phil PlaitSep 16, 2009 9:08 AM

Newsletter

Sign up for our email newsletter for the latest science news
 

Richard Wiseman has another fantastic illusion on his site:

I'm pretty good with these things, and it took me a while to see the circles... and even when I did, they kept popping in and out of existence. Shading is critical in this particular illusion! This illusion's been around awhile; I found a reference to it from 2007, and I imagine it's a lot older than that, too. Mnd man, it's one of the more maddening ones I've ever seen! The one above it on Richard's page made me a little woozy, too. I know men tend to be somewhat more prone to red/orange color blindness than women (I have a touch of it myself, but it's not bad), so I wonder how the genders break down in seeing that particular illusion. Go take a look and leave a comment on Richard's blog!

1 free article left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

1 free articleSubscribe
Discover Magazine Logo
Want more?

Keep reading for as low as $1.99!

Subscribe

Already a subscriber?

Register or Log In

More From Discover
Recommendations From Our Store
Shop Now
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 70% off the cover price when you subscribe to Discover magazine.

Copyright © 2021 Kalmbach Media Co.