The Use of Electric Models in Geography
1973
AbstractThe use of electrical models, such as conducting sheet analogues, in geography is based on the fact that a wide variety of problems, say, the flow of groundwater and an electrical current, are founded on the same set of differential equations. The technique of electrical analogues is found to be useful in the solution of a number of geographical problems that cannot always be handled effectively by electronic computers. For example, conducting sheet analogues can be used to obtain map transformations in which area is proportional to the magnitude of a particular mapped feature, for example, equidemic projections in which countries or continents are mapped on the scale of their population density. Other problems that may be suitable for analogue simulation include those involving population potential as well as those in which optimization calls for least cost or least effort.
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