Electrostatic interfaces - systems that make your fingers “feel” textures on a smooth metal plate - have been around for a long time. They haven’t quite caught on because the sensation is a little creepy and it’s not quite foolproof. However, a researcher at Disney Research in Pittsburgh, Pennsylvania, Olivier Bau, has created a unique system that creates these sensations on any surface using a special wearable system that actually controls the electricity sent to nerves in your skin.