Thankfully itâs just a concept! Not often do creative designs deserve such a remark and yet designer Cheol-Ki Joâs Natural Radio concept borrows absurdity from the Stone Age. The modern gadgets make use of all sorts of dials, knobs, buttons, and of late, touch-screens. However, the Natural Radio concept envisions a radio in which the functions are performed by placing rocks. It sacrifices functionality for humanizing the device. The user must place stones on either side of a scale to change volume or tune in stations. Interested in a simplistic device calling for labor, then go on and finance it. By the way whatâs next, computing by tying knots in a thread? Thanks but no thanks!