Modern marvels: Dams

Technology documentary
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They block the force of a river, produce enough electricity to power cities, move water over hundreds of miles and irrigate fertile valleys. Dams prevent floods and produce "green" energy. Visit a hydroelectric dam, the most technologically advanced type of dam and a dam in Brazil that is five times the size of the Hoover Dam.

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Category: Technology Documentaries
Documentary title: Modern marvels: Dams
Documentary Category: Technology
Documentary Views: 881
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