Farmers once used windmills to grind their grains and pump water ... about 600 U.S. homes. Wind farms have tens and sometimes hundreds of these turbines lined up together in particularly windy ...

Working together they create and reveal marvels ... Without the erosive forces of water, wind, and ice, rock debris would simply pile up where it forms and obscure from view nature's weathered ...

One way is to string together long lines of turbines that ... All that's needed is wind and water. There is no pollution generated and, once set up, the costs are low. But, there are a few ...

The first of two sessions exploring the water ... like the wind. Repeating a movement phrase. 4: Patting clouds. Moving towards a partner, gently patting and pressing a cloud together.