Born totally colorblind, artist Neil Harbisson wears what he calls an eyeborg, a sensor attached to a chip attached to his head. The sensor detects colors, as well as some UV and infrared wavelengths and the chip converts them into sounds that it transmits to his ears via bone conduction.
Harbisson has started the Cyborg foundation to advocate for others hoping to extend their senses.
Want to hear what Harbisson hears? You can download this ap and build your own eyeborg using your smartphone camera.