|MadSci Network: Physics|
For example, when dragging a flat bottomed glass across a kitchen counter (marble), adding water drastically increases the force necessary to move the glass. When performing the "singing glass" experiment, water provides the necessary friction to get the stick-slip motion going. How is that ? I tended to think that water would act as a lubricant - albeit a poor one - but not an antilubricant ! Thanks in advance for your anwser, Nicolas
Re: Why does a water film increase friction between some surfaces ?
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