But adding a little dish soap provides additional surface tension, allowing the bubbles to get trapped and creating lots of foam. This foam looks like a giant squeeze of toothpaste—almost big ...

Using these equations, they were able to generate a movie that shows the complex draining, popping and rearrangement of these bubbles as the foam vanishes. Bubble baths and soapy dishwater ...

as well as the unsolved question of what arrangement of bubble shapes in a foam will fill a container while using the least surface area (and thus the least energy). In 1887 Lord Kelvin had ...