Using Electrical Charge to Make the World Feel Different

Imagine if you picked up a ceramic teapot and it felt hairy, of if you ran your hand across a counter top and it felt like sandpaper. That's exactly the kind of thing researchers at the cutting edge of touch interfaces are trying to do, by changing the way everyday objects feel using a weak electric signal fed… » 8/09/12 5:30am 8/09/12 5:30am