(74 votes)
Spinning Girl Silhouette was an animated illusion that practically propelled our site to success few years ago. It was back in the old days when Digg was still a major player. Anyway, the article still receives certain amount of attention and comments, but I noticed how many still struggle seeing the lady spinning in both [...]
(88 votes)
Here’s a very fun animated tessellation picturing birds and cats. Animation truly brings a new dimension to these kind of pictures that use repetition of shapes with no overlaps and no gaps – it additionally helps you see both variations of the image, no matter whether you originally recognised the empty space containing cat shapes, [...]
(48 votes)
Today’s optical illusion animation is called “The Mutually Interfering Shapes” and was originally created by Maarten Wijntjes, Robert Volcic and Tomas Knapen in 2008 for Illusion of The Year contest hosted by the Vision Sciences Society. This is how authors themselves described the effect: “A circle’s a circle and a square’s a square, right? Wrong! [...]
(44 votes)
Let me share an interesting find originally titled “This Optical Trick Is Annoying the Hell Out of Me” by Gizmodo. I had this animation on my hard for a while, but before I learnt how to reduce it’s size to a minimum (while at the same time being able to retain decent quality of the [...]
(78 votes)
Just saw a fascinating TED talk the other day, titled “Is our Universe The Only Universe?” by Brian Greene. In fact, the speaker was so good with his presentational skills he was almost too good to be true. For a minute there I even doubted this guy was actually a theoretical physicist. I thought to myself: [...]
(38 votes)
Here’s a great find by Stephanie! An animated .gif file of a spiral. But wait – as countless times before, our brain has once again been deceived! The spiral actually isn’t spiral at all, but set of mutually concentric circles instead. I’m perfectly aware we had loads and loads of similar optical illusions, yet this [...]
(46 votes)
This one actually is really good (as simple as it may appear)! Observe the animation on your right: behind a grid of yellow boxes there is a purple rotating square. As the square rotates, we only see the part of it not covered by the grid. It appears to grow and shrink in its roatation, [...]
(64 votes)
Another cool illusion featured and explained by COGSCIdotNET is the Reverse Spokes Illusion. This particular effect was discovered by Anstis and Rogers, and it works in a way so that grey lines (or “spokes”) separating the pizza into slices, appear to be rotating clockwise. However, on a closer inspection you can clearly see that this [...]
