Thread: Useless contraption
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Old 03-09-2013, 08:27 AM
Bryan Bryan is offline
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Default 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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Last edited by Bryan; 03-09-2013 at 08:38 AM.
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