Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
capillarity

phenomenon which takes place at the interface between a liquid and another medium.The rise of water in a thin tube dipped in a water bath, the way sap rises in trees or the curvature of a free liquid surface when in contact with a wall are all examples of this. It is the result of surface tension between the different phases (stronger or weaker adhesion force between the molecules of fluid and those of the surrounding environment).

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