The Nano-Tech Water Drop Puzzle is simply a puzzle that cleverly exploits surface tension in water to allow you to use individual water drops instead of marbles or metal bearings in a toy.
November 11, 2008July 13, 2009
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The Nano-Tech Water Drop Puzzle is simply a puzzle that cleverly exploits surface tension in water to allow you to use individual water drops instead of marbles or metal bearings in a toy.