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[teacherartexchange] optical illusion


From: Rick Larson (jrlarson51_at_TeacherArtExchange)
Date: Sun Aug 06 2006 - 15:50:04 PDT

I will be doing optical illusions again this year. Here is another
interesting optical illusion. If someone knows the principal behind this
one, please share.
Looks can be deceiving.

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