Comment on "Long-lived giant number fluctuations in a swarming granular nematic".

Abstract

Narayan et al. (Reports, 6 July 2007, p. 105) reported giant number fluctuations attributed to curvature-driven active currents specific for nonequilibrium nematic systems. We present data demonstrating that similar results can be found in systems of spherical particles due either to inelastic clustering or persistent density inhomogeneity, suggesting two… (More)
DOI: 10.1126/science.1153456

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@article{Aranson2008CommentO, title={Comment on "Long-lived giant number fluctuations in a swarming granular nematic".}, author={Igor Aranson and Alexey Snezhko and Jeffrey S. Olafsen and Jonathan Urbach}, journal={Science}, year={2008}, volume={320 5876}, pages={612; author reply 612} }