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Photographing a superfluid vortex.

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<mark>Journal publication date</mark>20/09/1974
Issue number5472
Number of pages2
Pages (from-to)189-190
Publication StatusPublished
<mark>Original language</mark>English


It has long been realised that superfluid helium cannot rotate bodily: it is believed that, instead, rotation of the container may result in the formation of one or more individual quantised vortex lines. Particular interest therefore attaches to a report by Williams and Packard of the University of California at Berkeley in a recent issue of Physical Review Letters (33, 280; 1974) that they have been successful in obtaining photographs apparently showing for the first time the positions of individual vortex lines in superfluid 4He.