Tuesday, 25 March 2014

Researchers see Kelvin wave on quantum 'tornado' for first time

TIME AND SPACE
Researchers see Kelvin wave on quantum 'tornado' for first time
College Park MD (SPX) Mar 25, 2014 - Draining the water from a bathtub causes a spinning tornado to appear. The downward flow of water into the drain causes the water to rotate, and as the rotation speeds up, a vortex forms that obeys the laws of classical mechanics. However, if the water is extremely cold liquid helium, the fluid will swirl around an invisible line to form a vortex that obeys the laws of quantum mechanics. S ... more


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