Wednesday, August 15, 2012

More Optical Illusions



Sphere Size Illusion A visual illusion of two spheres.
Does one appear to be larger than the other?

Both of the spheres are the same size.
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The Lilac Chaser aka Pac-Man Illusion

Lilac chaser is a visual illusion, also known as the Pac-Man illusion. It consists of 12 lilac (or pink, rose or magenta), blurred disks arranged in a circle (like the numbers on a clock), around a small black, central cross on a grey background. One of the disks disappears briefly (for about 0.1 second), then the next (about 0.125 second later), and the next, and so on, in a clockwise direction.
The Lilac Chaser aka Pac-Man Illusion
When one stares at the cross for about 20 seconds or so, one first sees a gap running around the circle of lilac disks, then a green disk running around the circle of lilac disks, then a green disk running around on the grey background, the lilac disks having disappeared or having been erased by the green disk.
Brought to you by 123OpticalIllusions.com

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