Re:Headline misleading (Score 1)

This "invention" is a fan that is more efficient when placed in a temperature gradient, assuming the desired direction of air displacement is the same as the direction of the temperature gradient. But isn't this true for any fan? A temperature gradient will create a flow of air across a fan that drives the fan so as to create an increased flow of air. I'm not sure how capturing that energy, converting it to electrical energy and then back into mechanical energy, is going to improve matters.