Martha contributed this clever falling dominos video ...
From Frenetic Kinetics! by , March 11, 2010 at YouTube.
Tuesday, April 19, 2011
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About mind, government, climate, economics, health, politics, science, ..., and a touch of humor.
Martha contributed this clever falling dominos video ...
From Frenetic Kinetics! by Lunatim, March 11, 2010 at YouTube.
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