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The eye's response to colored light

Postby eluckham » Mon May 07, 2007 2:00 pm

Do you know why or know the experiment where if you stare at a colored light bulb for a few seconds, then at a white surface, your eye sees dots of the next color on the visible spectrum? For example, stare at a yellow light and you see green dots? Why is that?

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Postby MelissaB » Mon May 07, 2007 3:31 pm

There's a decent explanation of the phenomenon in a similar Science Buddies experiment, here: http://www.sciencebuddies.org/mentoring/project_ideas/HumBeh_p008.shtml?from=Home. It depends on what grade you're in, though; the explanation on that page may be too simple or too complicated for you. If it's either, post back and we can clarify.

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