The Ouzo Effect under the magnifying glass

Pour some water into your glass of ouzo or pastis, and the beverage will change from transparent to milky: this is the well-known 'Ouzo effect'. But what will happen if you simply place a drop of ouzo on a surface and wait? Scientists of University of Twente's Physics of Fluids group have studied the phenomena taking place, they distinguish four 'life phases' of the drop, within no more than a quarter of an hour. The results are published in the the Proceedings of the National Academy of Sciences (PNAS) of July 14.

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