Powered by KikBooks Widget

Relative Sizes Category

Say what you will, but old school stuff never gets old! Just look at this plain and simple optical illusion made from nothing but few lines. Perspective makes the corridor look 3D, which automatically makes both vertical red lines seem further dissimilar in length. Can you guess which one is bigger? If you’re an old-time […]

Richard Wiseman’s viral clip Assumptions has been viewed more than 3 million times on YouTube, which immediately propelled him into #celebrity status. As a result of this success, Richard has been invited to create online content for various projects, including Derren Brown’s The Events, the launch of The Mentalist, and Transport For London’s campaign to […]

Take a look at this short and simple animated #gif showcasing the Jastrow illusion in action! The Jastrow illusion was first discovered in 1889, by American psychologist Joseph Jastrow. In this clip, both figures are identical in size, although the lower one appears to be slightly longer. The short edge of the upper shape is […]

Hope you had the time to recover from all the Christmas joy, celebrating and food… I still haven’t. Anyway, I’m leaving for a vacation today but will be back soon. You don’t have to worry about the content rolling in while I’m away – it’s all set! Every now and then, perfect timing and cameras […]

Here’s an illusion we already had an opportunity to experience first hand in one of our earlier posts. This is the best example I’ve seen up to date. Although it may seem intuitively impossible at first, when we take the shape of the table surface on the left and apply it to the table on […]

Apart from seeing the missing sections of these 4 dark disks as the sides of the square (some will even perceive the square as brighter than its surroundings), as well as perceiving the vague contour lines of a square that doesn’t actually exist, this picture holds another great optical illusion. When the brain sees an […]

Here’s an update to an old post. I’ve just switched the picture and replaced it with a higher res version. New post coming up in a second… Lines A-B and C-D in the picture below are of the same length. You don’t believe me? That’s fine, go ahead and measure them for yourself! For more […]

Illusion below is something better known as Roger Shepard’s “Turning the Tables” illusion. Basically it’s the same thing we featured multiple times, using different motif. Look at the two Mona Lisa’s below. If I told you they had an equal surface area on their tops, you’d probably take it for granted. But what if I […]