I was wondering if anyone here knew how electric guitars work. My current understanding is that it's basically an application of lenz's law- the vibrating strings create a changing magnetic field, which the pickups, er, pick up, and cause electrons to move inside and flow through the amp. What I'm really wondering is how this translates into practical design. Could you, for instance, stick strings, magnets, and a circuit onto a block of wood and create an electric guitar, or does the body shape effect things too? Is there anything else (besides the amp of course) that effects things?