[1010.3656] Order-of-magnitude enhancement of wind farm power density via counter-rotating vertical-axis wind turbine arrays
Buckminster Fuller once said the world energy needs could be supplied by topping each power grid tower with a wind turbine. I suppose he meant vertical axis
I didn’t know that you could squeeze so much rain through the air.
Steve Jobs; Go get a life!
Get away from my keyboard!
(I glad I bought a Motorola Milestone)