Lots More Information

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More Great Links

• PBS: All About Bridges

Sources

• Blockley, David. "Bridges" Oxford University Press. 2010.
• "Build a Bridge." NOVA. October 2000. (May 17, 2011)http://www.pbs.org/wgbh/nova/bridge/build.html
• Foer, Joshua. "The Last Incan Grass Bridge." Slate. Feb. 22, 2011. (May 17, 2011)http://www.slate.com/id/2286002/
• Merchant, Brian. "Living Bridges in India Have Grown for 500 Years." TreeHugger.com. Sept. 28, 2010. (May 17, 2011)http://www.treehugger.com/files/2010/09/living-bridges-india-grown-500-years-pics.php
• "Rivers." Human Planet Explorer. 2011 (May 17, 2011)http://www.bbc.co.uk/nature/humanplanetexplorer/environments/rivers
• Wilford, John Noble. "How the Inca Leapt Canyons." New York Times. May 8, 2007. (May 17, 2011)http://www.nytimes.com/2007/05/08/science/08bridg.html