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Various Optical Illusions
August 20, 2011 8:53 AM   Subscribe

"I am fascinated with the science of optical illusions. What happens in our brain when we view an optical illusion? The information gathered by the eye is processed in the brain to create an idea or image that does not match with a physical measurement of the stimulus source. On this channel you will find a variety of videos that will spark that scientific corner of your brain."

Here's the real life counterpart to this illusion.

Hidden Animations

Cool IPad Animations

How to make an invisible bottle.

Wire Illusion

3D Paper Steps

And more . . .
posted by SpacemanStix (2 comments total) 10 users marked this as a favorite

I must have had an alternate understanding of the first illustion my whole life - that the darkened light square results in the same shade as the undarkened dark square. But your brain sees it as "lighter" because it's a known light square, and is still adjacent to darker. Not that the square itself is darker and the surrounding ones are then even darker?
posted by CharlesV42 at 9:46 AM on August 20, 2011

Yeah, that video sheds no light on the illusion, and in facts makes it more confusing, because the shadow from the cylinder is faked. They actually shaded the squares as if they had a shadow falling on them.
posted by ericost at 11:03 AM on August 20, 2011 [1 favorite]

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