What if we could hear the numerous invisible data frequencies that swirl around us every day? That's exactly what a project from hearing-impaired writer Frank Swain and artist Daniel Jones aims to do. Phantom Terrains is the proper name of the effort, and by hacking Swain's Bluetooth-enabled hearing aids, the duo has transformed WiFi signals into ambient sounds. So instead of seeing the device as a prosthetic, it's used as a sort of super power. The modification allows him to stroll around and listen to the range of tones electromagnetic signals provide -- like the pattern of a network's security parameters. And of course, no one else nearby can pick them up.