Physicists Create A Water Vortex That Ties Itself In Knots [video] Posted by GlennCSmith on Monday March 04, 2013 @05:25PM from the popsci.com dept. http://www.popsci.com/science/article/2013-03/physicists-create-water-vortex-ties-itself-knots-water-video ( no comments | 2 points | on HN )
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