ABSTRACT
The thin liquid films, and foam films in particular, have been for many years an actively investigated research topic in the physical chemistry of disperse systems
(e.g., Refs. 1-3). They have specific properties that make them useful models for the study of molecular forces (e.g., Refs. 1 and 4-8). Particularly interesting is the interplay of long-range and short-range interactions that occur during the formation and the evolution of foam films. Recently, new theoretical and experi mental results have been accumulated that distinguish the black films as very significant for the proper understanding of the nature of these interactions (e.g., Refs. 1, 2, and 9).
