(YouTube link)
Is this weird or what? This optical illusion known as Ames' Window was developed by Adelbert Ames, Jr. {wiki} Just watching it made me dizzy! -via reddit
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love the commentary, is that david attenborough's brother? ;)
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Ow, my brain hurts.
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AAAAAARRRGH!
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I've seen something like that at my school; the paper pretzel on top of the pretzel machine in the lunch room slowly revolves. If you stare at it for a while, it does exactly what this window does. So cool!
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Argh! My brain hurts just looking at this. ;)
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