Astronomy Picture of the Day rationalizes including this really good optical illusion by relating it to the virtues of non-human observation in science.
Astronomy Picture of the Day rationalizes including this really good optical illusion by relating it to the virtues of non-human observation in science.
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1 response so far ↓
1 Harmony Bright // Jul 18, 2007 at 5:56 am
Just when I thought I was getting a grip!
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