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Science in the City
Seismic San Francisco (Clip)
Date: January 12, 2011
Running Time: 00:05:26

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The ground under our San Franciscan feet is constantly on the move. Join Exploratorium educator Ken Finn as we visit some spots around town where exposed rocks reveal the tale of an active earth.
Urban environments like San Francisco are full of mysterious natural and human-made phenomena. Why are there so many one-footed pigeons? Where does the sewage go? Why is our “summer” in May and September? The Exploratorium is “taking it outside" to explore these and other questions in engineering, ecology, optics, waves, geology, architecture, weather, and more. Look for new episodes once a month.