The Foam reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Foam

Foam is a dispersion of a gas in a liquid or solid. The low density of foams make them excellent insulators as well as flotation devices. Their lightness and compressibility make them ideal packaging materials. Many bakery products such as bread are examples of foam.

See also: quantum foam, Styrofoam

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