You mean capillary action? http://en.wikipedia.org/wiki/Capillary_action http://en.wikipedia.org/wiki/Capillary_action I think this is somehow linked to viscosi

You mean capillary action? http://en.wikipedia.org/wiki/Capillary_action http://en.wikipedia.org/wiki/Capillary_action I think this is somehow linked to viscosity, but I don't seem to find how.