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The Lotus Box - an extraordinary and surprising puzzle
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4
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2327
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February 18, 2017
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Watch this mesmerizing and magical zoetrope
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2
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1174
|
July 6, 2016
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Mephisto Spiral optical illusion
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7
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2039
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April 12, 2015
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Amazing optical illusion, and Spirograph
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1
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545
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July 30, 2014
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Todd Berman's incredible sketches from Boing Boing: Ingenuity
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1
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1155
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August 25, 2013
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