# These 3 Cars Are Same in Size!

Psychologist Richard Wiseman posted this Ponzo illusion, telling us all three cars are of the same size. Ponzo illusion, first demonstrated by Italian psychologist Mario Ponzo in 1911., suggests that the way we judge an object’s size is highly dependent on its background. Just browse this site’s #Relative Sizes category and you’ll see many examples […]

# Which One is Larger?

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 […]

# VIDEO: Jastrow Illusion in Action

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 […]

# Magic Tables Optical Illusion

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 […]

# Lines In The Street Optical Illusion

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 […]

# Shepard’s Mona Lisa Illusion

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 […]