Date: January 25, 2012
Running Time: 00:04:10
Other Viewing Options
San Francisco has more restaurants per capita than any other U.S. city, producing tasty meals—and thousands of gallons of used cooking oil. See how the SFGreasecycle program is turning this grease glut into fuel for the city's bus fleet. For more information on the SFGreasecycle program go to http://www.sfwater.org/index.aspx?page=465 For more information on biodiesel go to http://www.biodiesel.org/
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.