Concentric Circles by Akiyoshi Kitaoka

Estimation 20 July 2015 0 Comments

Concentric Circles by Akiyoshi Kitaoka

Have a look at today’s image that was created by Professor Akiyoshi Kitaoka from Ritsumeikan University in Kyoto, Japan.  We’ve posted images similar to this one in the past, but I thought that it was a pretty good representation of an old optical illusion concept.  Each of the rings are circles, even though they certainly […]

Wavy Hair by Akiyoshi Kitaoka

Motion 30 April 2015 0 Comments

Wavy Hair by Akiyoshi Kitaoka

The circle in the center of this wavy yellow and purple pattern appears to move to the right while the background appears to moving to the left.  The motion effect on this one is incredibly strong for me.  I don’t know if it is the colors, or what, but it certainly seems like an animation […]

Squaring the Circle

Video 12 February 2015 0 Comments

Squaring the Circle

This interesting sculpture called Squaring the Circle was created in 2013 by Troika, the UK-based artist group consisting of Conny Freyer, Eva Rucki and Sebastien Noel.  Watch the video below shot at the Kohn Gallery in Los Angeles, California to see how these CNC bent steel tubes (measuring 54 3/4 x 54 3/4 x 30 1/2 inches) form […]

A Band on Sanity

Ambiguous,Animation 26 January 2015 0 Comments

A Band on Sanity

This animation of an impossible ribbon was created by Erwin Bonsma.  Depending on how you look at it, this ribbon can be perceived as rotating in two different ways.  He credits the original idea to M.C. Escher’s print titled “Cube with Magic Ribbons” which happens to be the first drawing by Escher to feature a […]

Moving Wreath Optical Illusion

Motion 22 December 2014 0 Comments

Moving Wreath Optical Illusion

Mathematical vision scientists Hitoshi Arai and Shinobu Arai created this unique wreath image in 2011.  If you focus your eyes on the red dot in the center of the wreath and move your head toward your monitor and then away from it repeatedly, you will notice that outer portion of the wreath appears to move […]

Warped Circles Optical Illusion

Estimation,Video 11 December 2014 0 Comments

Warped Circles Optical Illusion

This brief video shows a pair of circles that appear to be very warped or distorted.  Using circles cut out from a sheet of white paper, the creator of this video demonstrates that there is nothing warped about them at all.  Even after you know the truth, once the white circle cut outs are removed, […]

Rotating Pieces of Cheese by Akiyoshi Kitaoka

Motion 4 December 2014 0 Comments

Rotating Pieces of Cheese by Akiyoshi Kitaoka

The orange and purple ring appears to rotate clockwise on the green background in a twitching or jerky manner.  The effect is enhanced if you move your eyes rapidly around the image or look away from it briefly and then focus on it again. Compare this effect to another motion illusion created by Professor Kitaoka […]