A soap bubble is a very thin film of soapy water that forms a hollow sphere with an iridescent surface. Soap bubbles usually last for only a few seconds before bursting, either on their own or on contact with another object. They are often used for children's enjoyment, but they are also used in artistic performances. Soap bubbles can help solve complex mathematical problems; for example when connecting two (arbitrary) points in space, they will assume the shape of least surface area possible containing a given volume.
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