The power of wind has been used for centuries to make human lives better and easier. In the past, it was used to produce food, grind grain, pump water, and cut wood at sawmills1. Today’s modern wind machines output electricity using massive—lengths greater than a football field—rotating blades. A turbine with blades over 350 feet in length can produce enough energy to power over 6,500 average US homes for an entire year! Energy costs are lowered but with larger turbines, electricity costs can be reduced further.