Video
11 October 2012 0 Comments
Using an LCD screen, a transparent overlay and four yellow Post-It Notes, Brusspup creates his own version of the moving square illusion. According to Brusspup: There are 2 sets of lines moving back and forth perpendicularly but when the paper squares are placed on the screen the lines suddenly appear to be a square moving […]
Estimation
10 October 2012 0 Comments
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.
Color
9 October 2012 0 Comments
Within the larger gray and blue squares are two smaller squares. The small square on the left appears to be a blue or violet color while the small square on the right appears to be gray. They are, in fact, the same color. Do they look the same to you?
Animation,Motion
8 October 2012 0 Comments
Stare at the blinking green dot in the center of this animated image. As you do, you will begin to experience a motion induced blindness. The three yellow dots will start to randomly disappear and reappear. Sometimes you will notice that one is missing and other times it may seem that two or all three […]
Miscellaneous
5 October 2012 0 Comments
The grid presented below looks normal in the center section but “broken” on the left and right sides. Stare at the center of the rectangle for 15-30 seconds and notice what happens to the “broken” portions of the grid. Do they seem to repair themselves before your very eyes? Ryota Kanai from Utrecht University in […]
Natural
4 October 2012 0 Comments
Using Google Earth, a mountain formation resembling the head of an Indian can be found near Alberta, Canada. The image features a lot of facial detail including an eyebrow, an eye, a nose, lips, a chin and a neck. Some people have even noted that it looks like the profile might be listening to an […]
Motion
3 October 2012 0 Comments
We have featured terrific motion illusions from optical artist Kaia Nao in the past. If you missed them, you may want to take a look at the floating star illusion and tunnel vision. Below, he has created a design that features ten very colorful caterpillars. When you look at the entire image, do they appear […]