Tuesday Radiozine on 06/03/08

Air date: 
Tue, 06/03/2008 - 10:15am - 10:30am

Bruce Silverman presents another installment in his "Answers Series." The topic is Hippo Water Rollers. Dirty water is the number one cause of death and disease in the world. But many people have to travel far to get clean water, and water is heavy to carry. We'll hear about two ingenious, low-tech inventions to solve the problem. 


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