> The system has wing-like vertical airfoils that create a vacuum effect, drawing air behind an internal propeller to produce power, BMW explains. So not reall

> The system has wing-like vertical airfoils that create a vacuum effect, drawing air behind an internal propeller to produce power, BMW explains. So not really motionless. This reminds me of that Dyson "bladeless" fan - it's not bladeless at all, the fan is just hidden in the base.