CNETNate writes: James Dyson — British creator of the Dyson vacuum cleaners — has shown off his latest invention: a hollow 10-inch desk fan that uses no blades to pump out air. Dyson's PR department has done a smashing job of getting some of the biggest news sites in Britain to simply quote from the press release, but the technical innovation behind the Dyson Air Multiplier fan is intriguing. But one question remains: why has this been launched in the fall?
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