emulsions

It sounds like a party trick: Add water to the clear, licorice-flavored ouzo liquor, and watch it turn cloudy. This "ouzo effect" is an example of an easy way to make highly stable emulsions -- or mixtures of liquids that don't like being…

Some solid materials have a memory of how they have previously been stretched out, which impacts how they respond to these kinds of deformations in the future. A new Penn State study lends insight into memory formation in the foams and…