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Tying Water in a Knot

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Published on Mar 15, 2013

Reporting in the journal Nature Physics, William Irvine and Dustin Kleckner, physicists at the University of Chicago, describe the knotted fluid vortex they created in the lab -- a scientific first, they say. The knots resemble smoke rings -- except these are made of water, and they're shaped like pretzels, not donuts. Understanding knottiness has extra-large applications, including untangling dynamics of the sun.

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