Abstract: A cooling system is disclosed which utilizes the molecular structural changes of photochromic compounds when they are exposed to various wavelengths of irradiation. Further, a design is disclosed which uses solar irradiation to activate the molecular structural changes. An alternate system of irradiation is disclosed which could be utilized in geographic areas of low incidence of sunlight or during inclement or occluded times in any area. An integrated panel is disclosed for installation on the external face of buildings in order to negate the need for ducting internal to the building. This will significantly increase the efficiency of cooling due to the removal of cooling loss in ducting and the proximity of the cooling system to the cooled space.

Abstract: A system for simultaneously interactively training a plurality of students at student stations which may be remote from one another is described. A videodisc player capable of accessing any portion of a videodisc on which has been recorded instructional materials is coupled to a television monitor at each student station. Each student station also comprises a microcomputer into which the student inputs his or her response to the situations presented on the television monitor by the videodisc player. In one embodiment, selected video signals from the videodisc on the videodisc player are digitized and stored in a computer memory. These stored video signals may represent simulated outcomes corresponding to the reponses of the students.