I don't get how it's suppose to catch any wind. I don't see fans or wings of any sort. is it inbetween the floors?

Exactly - its between the floors. I think this is one of the most innovate overall building technology developments I've ever seen. They invented a way to create partial floor modules that are lifted to the very top of the building first and then filled in on the way down, a way to rotate the floors, a way to have horizontal tubines between the floors that create enough power for 10 towers - simply amazing.

You know, interestingly enough, I just thought that if you have rotating floors, you're creating angular momentum, which makes it hard to tilt the floors. I wonder if that also has a stabilizing effect on the building in response to earthquakes.

I'm normally a clean language man, but that is just bitchin'!

gibs, your architecture pieces add some nice variety to HN. Thanks!

Awesome awesome awesome awesome.

Now for my contribution to the discussion: How does the rotation work at the base of the building? Or is it mounted on top of another non-rotating building?

The central core is concrete cast in place and does not move. The floors hang on "rails" attached to the central core and rotate around the core riding on those rails.

Sweet. A commercial windmill can power around 40 standard houses, so this could work.

I hope it does get built in Chicago - that'd be a fun one to watch get built!