Hi - I know someone must have thought of this already, so maybe you can help me understand. When I look at some of these modern wind turbines, the blades seem massively long. I see this lumbering set of blades moving slowly and I imagine that the bulk of the wind does not even touch the blades but rather goes through the large gaps between them (if you look at the blades straight-on, the blades take-up only a small percentage of the circular swept area). Would it not be more efficient to have a set of blades that took-up almost all of the circular swept area so that they extract as much of the wind energy as possible? Either more blades or different shaped blades (a crude example is a pinwheel). Of course I would not keep the diameter the same (if this idea actually works, then it would generate way too much power). Rather make the diameter smaller so as to produce the same power. The goal is to get the same amount of power using less cumbersome blades. I'm thinking that installing smaller blades would be easier, even though there would be more of them. Well i ust have missed something, so please let me know where I went wrong.