Wind Energy

When air is warmed, it rises and is replaced by cooler air, leaving a low-pressure area that causes the movement of air known as wind. Windmills are the big things you see when you drive by a field. Windmills are a device that captures the energy of winds. They way windmills work is that the wind strikes the  the blades of a windmill, causing them to turn, and the solar energy stored in wind is converted to the kinetic energy of moving blades. That energy, in turn, is used to turn an axle, to power a pump, to run a mill, or to perform some other function. The amount of power that can be converted by a windmill depends primarily on two factors: the area swept out by the windmill blade and the wind speed. The questions we ask yourself is how does this contribute to us, and how do we keep the wildlife from hurting themselves on these things, maybe there is no answer or maybe there is. Wind turbines are becoming increasingly efficient, producing great amounts of electricity. Today's massive 40- to 50-story turbines convert kinetic energy in the wind into mechanical energy, while leaving plenty of room on the ground for farming or other activities.
By A & B