"At first glance, James Dyson's latest invention looks like a powerful HD antenna or perhaps a small portal into another world. But in fact, the device, which carries the vaunting title of Dyson Air Multiplier, is something much more common: a fan.

What, a fan with no blades? Yes, that's exactly what you're looking at, and what makes the Air Multiplier so hard for people to classify at first. This fan uses some innovative airflow engineering to pull air up through an energy-efficient brushless motorbase and multiply it 15 times, expelling it through an airfoil-shaped ramp at a rate of 118 gallons a second, according to the press release." ... pics and info at link