In 1804, an interesting effect, known as the Troxler Effect or Troxler’s Fading, was discovered by Ignaz Troxler. He noticed that something strange would happen if you fixated your eyes on one particular point (see the red dot below) for about 15-30 seconds. When doing so, images in your peripheral vision (the blurry blue […]
The painting below, by Russian artist Igor Lysenko, depicts a woman in a yellow dress and hat standing outside next to a bush. Hidden somewhere in the painting is the face of a man. Can you find him? The hidden face can be found by rotating the image 180 degrees. When inverted, the landscape and […]
In the late 19th and early 20th centuries, it was a common practice for cigarette companies to include cards with their products to help advertise their brand. Ogden’s Cigarettes, a branch of the Imperial Tobacco Co. (of Great Britain & Ireland) Ltd, released a series of 25 optical illusion cards in the 1920s. Number 13 […]
Like many others, I am a big fan of 3D sidewalk chalk art and enjoy featuring it on the site. I am not exactly sure who the artist behind this one is, but would love to find out. If you know the artist, please let us know in the comments. This artwork really brightens up […]
Two red hearts are presented below on a blue background. One of the hearts is “blurry” and the other is not. As you move your eyes back and forth between them, the blurry heart appears to wobble (as if it were unstable) while the solid red heart does not. This illusion was presented by Kohske […]
Can you find the hidden image on the surface of Mars in this stereogram created by 3Dimka? If you are having trouble finding the hidden image, try reading through the stereogram viewing tips at 3DStereograms.com. They should help get you on the right track.
We’ll start off 2013 with a very colorful and powerful motion illusion. The circles appear to swirl all around the purple background. The television set in the middle says “I am Bad For Your Eyes”. Is this message talking about the illusion or the TV itself?
