You have all seen those backyard windmills, about 4-6 high that turn in the wind? I never paid much attention as to how they worked until I purchased and assembled a used one for my 85 year old mom. The windmill fan blade will turn and the whole tops pivots based on the wind direction. But which way? For example, lets says the wind is coming from the North. Do the rotating fans blades turn into the wind, so they would face North, or are the pushed to the South? I thought maybe the direction of the blades might make a difference, but I think the direction of the blades only changes which way the fan blade rotates? Anyone actually know?