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In The Fight Against Flooding Sandbags Have A Rival
Sandbags have been a common sight in communities in Minnesota and North Dakota along the Red River. The Red River is now slowly receding after cresting over the weekend. But the sandbag has gotten some competition. The AquaDam, a tube filled with water, is a new flood barrier that's being put to use. Robert Siegel talks with David Doolaege, inventor of the AquaDam, about how it works.
Source: NPR Topics: Science