Canreef Aquatics Bulletin Board - Useless contraption

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- - Useless contraption (http://www.canreef.com/vbulletin/showthread.php?t=95549)

Bryan

03-09-2013 09:27 AM

Useless contraption

Thought this was neat. Two trillion years to make one revolution.

http://blog.makezine.com/2012/04/25/...with-concrete/

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