Make Magazine reports on: “Biohackers [that] create DIY implantable systems to augment human capabilities and transcend the limits of biology.”
Neil Harbisson was born colorblind, but a snorkel-like device mounted to his head now translates the visible spectrum into sound and transmits it to him via bone conduction.
Rich Lee had two magnets implanted in his head. Signals from his MP3 player run through a coil, creating an electromagnetic field that causes the magnets to vibrate, playing music.
Lee’s coil works with almost anything you can plug a headphone jack into so a piezo contact mic lets him “hear” through walls, and hooking his coil up to a rangefinder grants a crude version of sonar.