With fascinating experiments, models, and demonstrations, this scientific survey provides a vivid exploration of natural phenomena. Ideal for budding earth scientists, this in-depth resource demonstrates how to build a seismograph to record a simulated earthquake, compare pressure waves and shear waves--the two types of ground shocks--with a Slinky, and replicate a tsunami's destructive effect on a "coastline" built in a bathtub. The chapters answer questions such as Can animals "predict" earthquakes? How have various cultures explained the movement of the earth throughout history? and Why do some volcanoes ooze rivers of lava while others blow their tops? Additional topics include how to earthquake-proof homes, protect oneself during a tremor, and construct simple models to test seismographs.
How does a city obtain water, gas, and electricity? Where do these services come from? How are they transported? The answer is infrastructure, or the inner, and sometimes invisible, workings of the city. Roads, railroads, bridges, telephone wires, and power lines are visible elements of the infrastructure; sewers, plumbing pipes, wires, tunnels, cables, and sometimes rails are usually buried underground or hidden behind walls. Engineering the City tells the fascinating story of infrastructure as it developed through history along with the growth of cities. Experiments, games, and construction diagrams show how these structures are built, how they work, and how they affect the environment of the city and the land outside it.
Levy, an architectural engineer, and Salvadori, professor emeritus of civil engineering and architecture at Columbia U., provide a fascinating account of the most important and interesting structural failures in history, and especially in the 20th century. Annotation c. by Book News, Inc., Portland, Or.
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