vertical windmill - adjustable fin angles
If I direct a breeze towards one side of it... it actually spins. If I keep fiddling with it I think I will create concave blades. I think 4 or more would be better than 3 as well.
If I direct a breeze towards one side of it... it actually spins. If I keep fiddling with it I think I will create concave blades. I think 4 or more would be better than 3 as well.