title: Foam as a complex system.
abstract: What is a 'complex system'? The two-dimensional foam, as originally popularized by Cyril Stanley Smith, provides an ideal context in which to explore this question.
authors.affiliation: School of Physics, Trinity College Dublin, Dublin 2, Republic of Ireland.
authors.forename: D
authors.initials: D
authors.lastname: Weaire
authors.forename: S
authors.initials: S
authors.lastname: Hutzler