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Energy: Understanding Hydroelectric Power
DVD 
List Price: $44.95
Price: $37.31
You Save: $7.64 (17%)

Water constantly moves through an immense global cycle, evaporating from lakes and oceans all over the world, condensing to form clouds, precipitating as rain and snow, which then flows back to the oceans. Hydroelectric power takes advantage of this water cycle to drive machinery or create electricity. Hydroelectric power uses moving water as energy. Because the water cycle is an endless and constantly recharging system, it is an excellent source of renewable energy. Traditional hydroelectric power takes the energy of moving water to turn hydraulic turbine blades. The blades then turn a generator shaft that produces mechanical energy. The generator converts this energy into electricity. Engineers have developed innovative technologies that take advantage of other sources of energy from water including ocean currents, tides and waves.

Title: Energy: Understanding Hydroelectric Power
Genre: Special Interest-Educational
Studio: TMW Media Group
Release Date: 2/29/2012
Product Type: DVD
UPC: 709629045705
Item #: 190185X

Street Date: 2/29/2012
This product is a special order
Run Time: 15 minutes

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