Man behind the Dyson vacuum cleaner invents a fan with no blades
From the man who invented the bagless vacuum cleaner comes an idea that will really blow you away - a fan with no blades.
Sir James Dyson's Air Multiplier radically alters the design of the fan for the first time since American engineer Dr Schuyler Wheeler came up with a twin-blade version in 1886.
The device works by sucking in air, boosting its speed by 15 times then pumping it out at 405 litres per second. And instead of spinning blades, the Air Multiplier has a hole.
Sir James came up with the idea while working on his revolutionary hand drier, the Air Blade. He realised if the air pushed out could be channelled into a stream it could be used as a fan.
He said: "I've always been disappointed by fans because their spinning blades chop up the air to give a buffeting effect. They're hard to clean and children have to be watched in case they stick their fingers through the grille."
To demonstrate how safe it is, he flicks on the switch, sticks his hand through the centre and puts his head through. He grins like a magician and says: "Look no blades." At £199, Dyson's Air Multiplier is not cheap, but Britain's top inventor hopes it will change the face of fans - just like he did for vacuum cleaners.
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