Atomic vertical-axis wind turbine.

I made a few refinements. This new shape is designed for vertical stacking up to whatever height is desired, with interlocking pieces to help maintain structural integrity and reduce vibrations. This is just a tweak to the previous design - the new arm isn't so strong, but it does eliminate that really nasty overhang. I have tested it out now (Thanks to some suitably British weather) and can verify that it does spin, and at a pretty decent speed too! Though without much torque.

This design works in two- or three-blade configurations. Unintuitive as it may seem, three blades isn't actually more powerful than two, except at very low wind speeds. Three blade have a different advantage: They run a smoother. Less noise, less vibration. A nice property of this design is that you can print a two-blade turbine out for testing, and if it shakes two much re-pupose the sections for a three-blade.

There's a catch to this design: It doesn't start easily. It's fine under no-load, but if you ha