26175409
9781563535970
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Footage of earthquakes shows the destructive energy in seismic waves, made visible with seismographs & maps. A demonstration with a Slinky reveals the difference between primary (longitudinal) & secondary (Transverse) seismic waves. Also see how artificial ground waves created by humans reveal the composition of Earth, the location of minerals & fuels & the proper structures for safe buildings.Seismic Waves, Grades 5-12, was published 1999 under ISBN 9781563535970 and ISBN 1563535971.
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