Friday, April 8, 2022

Which media organizations are trusted more by Democrats and by Republicans

Tuesday, March 15, 2022

Rubin Vase (And Variations)

Rubin's vase (sometimes referred to as "The Two Face, One Vase Illusion") depicts the silhouette of a vase and the profiles of two inward-looking faces. The illusion was developed around 1915 by the Danish psychologist Edgar Rubin.

Here are a few interesting variations of the Rubin vase.

Friday, January 7, 2022

Yuri Perepadia Motion Illusions

Some interesting motion illusions from vector graphic artist Yuri Perepadia.

Fancy Shapes



Thursday, November 18, 2021

Muller-Lyer Illusions

The Muller-Lyer illusion is an optical illusion in which two lines of equal length appear to be unequal depending on which direction the arrowheads at the ends of each line point. When the arrowheads point away from each other the line appears shorter. When the arrowheads point toward each other, the line appears longer. The illusion was first discovered in 1889 by German sociologist Franz Carl Müller-Lyer.

There are different theories which attempt to explain the phenomenon. I think this article from The Illusion Index provides a nice summary. 

While the Muller-Lyer illusion is mildly interesting, the effect becomes mind blowing when movement is added to the arrowheads. Here are examples of Gianni A. Sarcone's dynamic Muller-Lyer illusions.