A perceived sphere (image from AnOpticalIllusion.com)
Sphere Here
Tag Archives: optical illusion
Kit-Bits
Use a straight-edged object against the screen to confirm that these are straight lines
Perfect circles, despite what your eyes say
Concentric circles, not a spiral
The optical illusions above are by the Japanese psychologist Akiyoshi Kitaoka via SYFY.
Overlord In Terms of Core Issues Around Maximal Engagement with Key Notions of the Über-Feral 