A pretty powerful optical illusion

[pokerjo22]

If you're prone to motion sickness don't click, but for the rest of you:

http://www.ritsumei.ac.jp/~akitaoka/rotsnake.gif

Its not an animated gif. If you print it out on a piece of paper you see the same thing.

More from the same artist:

http://www.ritsumei.ac.jp/~akitaoka/index-e.html

[spamuell]

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Its not an animated gif. If you print it out on a piece of paper you see the same thing.
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No f'n way.

EDIT: I do believe you, it's just, wow.

[TStoneMBD]

nice.

[TimM]

AHHHHHHHH. Make it stop, MAKE IT STOP!!!!

[thatpfunk]

Great, now I'm craving mushrooms...

[MoreWineII]

My eyes hate you.

[wacki]

[ QUOTE ]
Great, now I'm craving mushrooms...

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[brassnuts]

Pretty cool. Now, if you print this out, does it still give off that effect? Or is this caused by the refresh rate of our monitors?

[pokerjo22]

It works on paper too. Its to do with the contrast between the alternating bands on the snakes as well as our eyes scanning the image (if you hold your eyes perfectly still the rotating will stop). Nothing to do with refresh rates.

[Macdaddy Warsaw]

If you focus on a single spot and don't move your eyes, it stops "moving". Clearly whatever causes it has to do with eye movement or the brain's adjustment to eye movement.