dyson

The company that brought us new-fangled vacuum cleaners has turned its attention to fans. Dyson has come out with a bladeless fan. There's an impeller in the base which sends air up into the ring. A slit near the leading edge lets the air out where it flows along the airfoil shape. Has...

James Dyson, inventor of the bagless vacuum cleaner, explains how to design things: He built 5127 prototypes. Now if only vacuum cleaners could reproduce with variation.