Building a radio generally isn't a difficult thing, if you have the right set of components and a PCB board. But, this particular how to beats all other known Radio making tutorials. Because, this "how to" details perhaps the world's simplest home made radio, which can be built with just a few wires, a razor, a safety pin and an ear piece. Forget what you learnt in electroic manuals, you don't need a PCB, crystals, ICs or even resistors for this home made radio hack.
No, we aren't kidding, read the instructions here.