NRC). Today's conceptual adventure involves radar, or RADAR (RAdio Detection And Ranging) if you prefer. Without going into too much technical detail, Nokia demonstrates a handset that uses electromagnetic waves to measure the speed of an impressively stoic Finn as he walks towards and away from a prototype handset that can identify the direction of movement. It also works through fabric to help turn typically mundane tasks such as volume adjustment into an aerobic art form. No really, see for yourselves in the video after the break.