It was a bit dark in here. It's a good thing we have lights, but do you know what makes the lights work? GIRL #2:Is it electricity? CURIOUS CAT:That's right, children. Electricity is very important.

Farmers once used windmills to grind their grains and pump water. Today, more and more wind turbines wring electricity from the breeze. Over the past decade, wind turbine use has increased more ...