For years, people have used water power to provide electricity. This study recaps that history and describes exciting new techniques.
Weight : 9.6 g, Dimensions : 7.5 × 9.5 × 4 cm
For years, people have used water power to provide electricity. This study recaps that history and describes exciting new techniques.
Weight : 9.6 g, Dimensions : 7.5 × 9.5 × 4 cm