Oil and water famously don't mix, but finely dispersing one in the other produces a liquid mixture with many useful properties. An emulsion consisting of tiny droplets of one of those liquids immersed in the other is the ...
Jan 27, 2016 in Materials Science
Turn on a skillet and let it heat up until it is well above the boiling point of water. Then sprinkle a teaspoon of water on the skillet and watch. Water droplets will bounce up, form spheres and scurry across the surface.
Feb 01, 2016 in General Physics