I heard about this video on National Public Radio's Science Friday. The video is of a mini meandering river constructed in a laboratory. Apparently this has been attempted for a hundred years without success. From a scientific perspective the question is what are the necessary components to allow/force a river to meander. The key ingredients are course and fine sediment as well as vegetation for bank strength. The findings are published here in the Proceedings for the National Academy of Sciences.

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08 October 2009