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Applied physics

On a roll


Populations of rolling particles have been shown to display unidirectional collective motion in a racetrack enclosure. Theoretical modelling suggests that hydrodynamic and electrostatic effects promote such behaviour. See Letter p.95

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Figure 1: Roller herds.



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Correspondence to Michael Shelley.

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Shelley, M. On a roll. Nature 503, 43–44 (2013).

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