hellooooo,

anyone an idea? how does the body produce electricity where to look how to attach to garments... questions ... fill my head ; )

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not really sure what you mean, could you elaborate? I think it's more that the body conducts electricity, you can't use it as a source of electricity itself.
i would like to use it as a source to generate. But the questions are
1. how to storage the electricity
2. use it outside the body

do you think our body needs all the electricity it is making to function and get our parts moving???
Ok, I see. It seems like you'd have to use kinetic energy. Like with this piece:

http://www.crunchwear.com/kinetic-charging-piezing-power-dress/

where the motion of the wearer uses kinetic energy to charges batteries. I think that probably addresses your problem of storing the energy. And then it can be used outside the body by using those batteries to power other things.

Here's another example, with sound:
http://www.crunchwear.com/pacer-suit-makes-music-with-movement/
:)
Angela and I did a kinetic project w/ rollerskates at one point.

The nervous system is powered by electricity, but while it is enough to get muscle contracting (with all kinds of chemical help along the way) it's not enough to power stuff. But a result of all that movement is kinetic energy and heat which CAN be harvested.

Look into galvanic skin response and capacitive sensing tech, aka the skin's ability to conduct and touchscreens. Although a human body has a lot of resistance, it can be used to complete a circuit, easier to ground it than to power it.
a little late but still thx, in the end i used a tiny on/off switch with 9v batteries and lots of resistors and metal soldering ;)

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