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Williams, Earle R. – Scientific American, 1988
Discusses the natural phenomena of lightning. States that the exact microphysical processes responsible for the charging of storm clouds remain in dispute although for centuries it has been known that lightning is a form of electricity. Uses diagrams to explain the structures of thunderclouds and charge transfer. (RT)
Descriptors: Electricity, Environmental Influences, Meteorology, Physical Environment
Walker, Jearl – Scientific American, 1988
Discusses some of the physical processes involved in the freezing of water. Traces the work of a variety of researchers who have discovered numerous variables involved in the complexities of ice. (TW)
Descriptors: Crystallography, Meteorology, Physical Environment, Physics
Schneider, Stephen H. – Scientific American, 1989
Discusses the global change of climate. Presents the trend of climate change with graphs. Describes mathematical climate models including expressions for the interacting components of the ocean-atmosphere system and equations representing the basic physical laws governing their behavior. Provides three possible responses on the change. (YP)
Descriptors: Climate, Climate Control, Environmental Influences, Higher Education