A sticky subject: the science of surfaces

The Post-It note tacked to your wall, the non-stick frypan in the kitchen cupboard, and even your vehicle's tyres gripping the road... You've probably not given too much thought to what makes things sticky, and others slippery. But Laurie Winkless has. She's a physicist and science writer, based in Wellington, and has just published Sticky: The Secret Science of Surfaces. Laurie Winkless tells Kathryn how we're surrounded by stickiness, and it's shaped the manufactured and natural world around us.