A valid argument raised about wind turbines is that they kill birds.
This is true, and with this in mind, I've been trying to think of some work arounds.
Here's my first idea.
This metal cage surrounding the rotating blades of the fan prevents errant budgies from being killed, while still allowing a flow of cooling air to be emitted from the front of the fan.
I actually suggested this idea on a forum, and was loudly decried as a crank. The cage would prevent the wind from reaching the blades of the turbine, they said, and the added weight of such a structure would impede the turbine's ability to face the wind.
So it's odd then, that despite the dense metal mesh enclosing the blades of this rapidly turning fan, it somehow fulfills it's function. Still, the critics do have a point. Such a cage would presumably have some effect on the output of the turbine, and experiments would have to take place to determine the optimal ration between keeping the birds safe, while maximising output.
So here's a development of the idea, complete with both an extremely dangerous turbine, and some birds.
As you can see, this one doesn't employ a cage, it uses a net. This net prevents the birds from being chopped to bits by the rapidly spinning propellor, while the propellor itself manages to output sufficient thrust to keep the aircraft aloft.
What not to like?
driving lessons in Wallasey?