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Science in the City
Urban Treasure (Clip)
Date: February 9, 2011
Running Time: 00:05:00

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Geocaching is a high-tech treasure hunting game played throughout the world by adventure seekers equipped with GPS devices. The basic idea is to locate hidden containers, called geocaches, outdoors and then share your experiences online. We take a trip around San Francisco and examine what treasures are hidden in plain sight and talk to a few geocachers to find out what all this means.
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.