Today’s video spotlights the Jastrow Illusion using a pair of identical toy train tracks.  The two wooden train track pieces appear to be longer (or shorter) than the other when arranged one on top of the other.  When one of the pieces is placed directly on top of the other, however, it is obvious that they […]

Presented below is a video that was another finalist for the 2013 Best Illusion of the Year contest hosted by the Neural Correlate Society.  The video shows four yellow circles spinning at the same speed around both the Roadrunner and and the very hungry Coyote.  Watch what happens when the four circles spinning around the […]

All of the edges in this image are straight and either horizontal, vertical, or at a 45° angle.  Does it appear that way to you? Edit:  I just also noticed that if you move your scroll bar up and down when viewing this image it appears to have some motion elements to it.

This is an excellent example of the way in which our eyes deceive us.  In the street view shown below, the line AB looks to be much longer than line CD.  If you measure them, however, you will find that they are exactly the same length.

In the image below, the red object on the bottom looks significantly larger than the orange object on the top, right? Believe it or not, both objects are the exact same size.  This illusion was discovered by American psychologist Joseph Jastrow in 1889.  As such, it is often referred to as the Jastrow Illusion. EDIT:  […]

Do the two pillars on the Golden Gate Bridge appear to be parallel or skewed? The photograph on the left and right are identical.  Therefore, the pillars must be perfectly aligned and parallel.  For most people, it appears that the images are skewed.  That is, the picture on the right is at a much sharper […]

Does that matchbox on the left appear to be the exact same size as the one on the right? They certainly do not look to be the same size, but they are.  This animation was created by Digitalvaho/Fred van Houten after being inspired by an article written by Bruno Ernst.  It is a variation of […]