Browsing archives for 'Estimation'

Squaroo by Gianni Sarcone

Estimation,Motion 17 April 2017 0 Comments

Squaroo by Gianni Sarcone

Here is a new optical illusion from Gianni Sarcone that I found while browsing his Red Bubble portfolio.   If you haven’t visited it, I would encourage you to do so as there are a lot of great designs to admire. With respect to today’s optical illusion, there are a couple of things going on. First, […]

Torii Illusion (Hering and Zöllner)

Estimation 5 January 2017 0 Comments

Torii Illusion (Hering and Zöllner)

Happy New Year everyone! Proferssor Dejan Todorović of the University of Belgrade created this optical illusion that highlights the effects of two different illusions known as the Hering illusion and the Zöllner illusion.  The blurred orange lines (representing a Torii, a traditional Japanese gate located in front of a shrine) are identical in all three […]

Candy Cane Optical Illusion

Estimation 21 December 2015 0 Comments

Candy Cane Optical Illusion

In the spirit of the holiday season, today’s optical illusion features a series of red and white candy canes.  When you look at these seven pieces of candy, do they appear to be parallel to one another or are they askew?  If you want to be certain, grab something with a straight edge and hold […]

Terror Subterra by Roger Shepard

Estimation 21 September 2015 0 Comments

Terror Subterra by Roger Shepard

It certainly does not appear to be true, but the two monsters shown in this illustration are identical in size.  It looks like the monster in the background is significantly larger than the one in the foreground (maybe even twice the size).  This was originally published in Roger Shepard’s book “Mind Sights” in 1990.  In […]

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 […]

Variation of the Cafe Wall Illusion

Estimation 19 February 2015 0 Comments

Variation of the Cafe Wall Illusion

In this variation of the Cafe Wall illusion, created by Alan Stubbs, the vertical gray lines between the black and white squares appear to be quite wavy.  If you take a straight edge (like a sheet of paper or a ruler), however, and hold it up to the lines, you will find that they are […]

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, […]