Soap bubble
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A soap bubble is an extremely thin film of soap or detergent and water enclosing air that forms a hollow sphere with an iridescent surface. Soap bubbles usually last for only a few seconds before burs
A soap bubble
Girl blowing bubbles
Many bubbles make foam
Soap bubbles can easily merge
Weaire–Phelan structure
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In geometry, the Weaire–Phelan structure is a three-dimensional structure representing an idealised foam of equal-sized bubbles, with two different shapes. In 1993, Denis Weaire and Robert Phelan foun
A close-up of the mold used for the growth of ordered liquid foams.
Beijing National Aquatics Centre