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October 10, 2009 | 20 Comments

bent-gray-lines

Bare with me, I know some of the content seems to repeat itself, but you have to understand we are constantly receiving waves of new (to become regular) visitors that might have missed our archives. Still, I always give my best effort not to repeat myself. Even though some of the illusions may look exactly [...]


September 15, 2009 | 10 Comments

Open this image in full-size. Are those circles, or continuous spiral?

Let us revisit the Seemingly Bent category. We hadn’t had unique optical illusion that belongs to this section, in quite a while. To remind you once again, Seemingly Bent category consists of illusions that give you impression you are seeing slanted lines and shapes, while in fact they are perfectly straight (or mutually parallel). Most [...]


August 4, 2009 | 26 Comments

Bourdon Optical Illusion

There’s a new optical illusion in town, and its name is “Bourdon Illusion“. The Bourdon  illusion is the apparent “bentness” of the straight edge of a figure consisting of two elongated triangles arranged apex to apex.
Like you see in the image on your left, the upper side of the left-lower triangle is actually aligned with [...]


May 14, 2009 | 29 Comments

Ever wondered why its so tricky to hit the curve ball in baseball? Well, this example might just show you why. Big news is that three best visual illusions in the world were chosen last weekend, at a gathering of neuroscientists and psychologists at the Naples Philharmonic Center for the Arts in Florida. We’ve been [...]


April 21, 2009 | 15 Comments

As I already explained, this week will be a killer. Not from the illusion point of view, but me studying my ass of. Due to this situation, I have composed this post yesterday and set it to auto-publish itself today. How cool is that? About those fish oil pills that are supposed to improve your [...]


April 20, 2009 | 26 Comments

As I was just about to give up, I found this interesting optical illusion to share with you today. There is nothing complex about this Wonky-Tonk building. It has it’s roof, doors and four windows. There are also two of the tenants in front of it… but wait! Why are the tenants so upset? Apparently [...]


March 11, 2009 | 147 Comments

I have found something interesting today. As you see, the continuous animation on your left, pictures three grayish rods traveling up and down – indefinitely. Optical illusion produced here, makes my brain think the rods are also traveling to the right, altogether moving in a zigzagged direction. Am I the only one experiencing this? Do [...]


March 10, 2009 | 33 Comments

Hmm, last time we saw something like this, the illusion was horizontal. Does it work in vertical mode as well? You decide! Apparently the building pictured in this article stands perfectly upright, and has the same width of it’s footer, as of it’s last floor. How can it be? Why do we see it shaped [...]


February 21, 2009 | 24 Comments

Now, I really love this one! Larry from Michigan sent me an image I couldn’t miss sharing with you. What we have here is a classic example of “Slanted Lines” illusion, just like the one we published on Monday. The usage of the effect is more advanced this time, since it additionally exploits the nature [...]


February 16, 2009 | 31 Comments

A simple one for today. User that goes under pseudonym “r4z2″ sent me the following image, along with his explanation: “Hi, been a secret lurker at you site for years now :) And when I accidentally created this image, I thought I’d submit it. The white lines are actually perfectly horizontal and vertical, even though [...]