I am trying to solve a problem of having wires going up to an MP3 player to the earpiece. I also didn't want the weight of batteries, e.g. via a Bluetooth or other wireless head set. I did an experiment where I used conductive paint to mark out some tracks on my skin to replace wires. The conductive paint is very flexible (I put it on my hand which flexed a lot ) and there seemed to be enough current to drive a LED throught my hand. Image here:
Might be useful applications like powering ear pieces, military apps, body sensors, health monitoring, jewels, art etc. I'm only doing experiments with AM analog signals at present, not digital but may in future. I also did some experiments with powering a crystal earpiece throught the skin (no conductive paint, just skin resistance) My question is, has this been done before (i.e .power not just signals) ? (I know about the IBM Zimmerman expt ). It's seems obvious but a google search reveals nothing.
Lyn