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Nature 435, 1168-1169 (30 June 2005) | doi:10.1038/4351168a; Published online 29 June 2005
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Lectureship in Ecology
- University of Southampton
- Southampton, Hampshire, SO16 7PX, UK
Assistant Professor of Medicine
- Massachusetts General Hospital
- Boston, MA
Fluid dynamics: Impact on Everest
David Quéré1
Abstract
When a drop of liquid plummets onto a surface, the result is a splash — but not it seems if the process occurs at reduced atmospheric pressure. Here, perhaps, is a way to tune splash behaviour for practical ends.
A drop of liquid surrounded by air — is there anything left to discover in such a simple system, 200 years after Thomas Young and Pierre-Simon de Laplace laid the scientific foundations of capillary action? Writing in Physical Review Letters, Xu, Zhang and Nagel1 reveal that air, which has been viewed as a passive fluid in the story, plays an unexpectedly active role in creating the splash that occurs when the drop hits a solid surface.
- David Quéré is at the Laboratoire de Physique de la Matière Condensée, Collège de France, 75005 Paris, France.
Email: david.quere@college-de-france.fr
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