Frequency dependence of the dielectric behavior of matter

The fundamental electrical nature of matter and its relation to the chemical and physical behavior of materials is more widely recognized at present than ever before. Dielectric constant, power factor and conductivity studies have proven to be powerful means of increasing our understanding of the structure and physical chemical properties of molecules. This information is not only important in order to characterize and appraise materials for insulation but also for other types of products. It is interesting to note that some of the important researches stimulated by the war effort were beginning to appear in various papers found in the literature of the past year. This accounts in part for the distinct increase in volume of literature on the subject. It also should be recognized that the research on electrical properties has been greatly extended due to exacting specifications for instance of insulation material, to the increase in facilities and precision equipment for electrical measurements, and to the additional thought devoted to the subject.