Knickers Under Scan

Ladies, if you visit London's Trafalgar Square before 30 November you're likely to find someone leering up your skirt. Don't be flattered. It's all part of a soppy art installation which projects video images of 300 Londoners on to the pavement. The moving images show up in your shadow. It's called Under Scan and it's the brainchild of Rafael Lozano-Hemmer. I saw a try-out on BBC London News a week ago and wasn't impressed. Still, whatever turns you on....