Using Your Body Energy!

Using a multimeter i tested myself out of curiosity using two differing metals and found i give off about 0.6 volts at about 20 milliamps, using a small capacitor it charges fine, I then used multiple ones in parallel and it also charges quick, when i disconnect it from myself then shift the capacitors into series i can flash a small led. Whats a good circuit for doing this automatic when a charge is built up? Also are there any other good low power things I could do with it? Solar power is great but wouldn't it be cool if we could also use our own ambient body energy to do low energy stuff!

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Punkguyta10 years ago
Perhaps this would be the perfect use for the splash of hot solder that you dropped on your arm?
How do you get solder on your arm? Legs/lap i can easily understand, but arms? Are you practicing gymnastic soldering?
If you had shaky hands such as I?
schorhr CameronSS10 years ago
Well, if you hold something against the light to see better and it drips down onto your arm maybee... or because of a SM fetish.
schorhr Punkguyta10 years ago
Hehe ;) If you solder with another kind as well, such as aluminum soldering ;-)
Punkguyta schorhr10 years ago
Pseudoscience (author) 10 years ago
Can someone please help with this?
What you want is a chargepump or stepup converter.
Be carefull though, high voltage could zap you ;-)
More to those further down... but first:

Why not use more of the metal? You could turn yourself into a serial battery :-)
Voltage-up-converters are not very efficient.
They almost all require a A(lrernating)C(urrent) or have a oscillating part allready built in.
Else there is no charge-decharge impulse, same as you would not switch wires from seriel to parallel.

Basicly one of the circuits works like you did it- it charges capacitors paralell and then discharges them serial.
Cockcroft Walton Multiplier

More usefull to you might be this (german but illustrated) circuit that runs a bright LED on a single battery, even if it drops below 1v.

But as said, just try with more metal strips. Connect them in a series then (+ - + - ...)
But as I said earlier, the metals do the trick, not the body. You could put the metalstrips into (salt)water, a lemon or wet soil, too.
Since its such a slow reaction you will never notice, but the metal slowly disolves because it reacts with the other, thats what produces the energy.
Pseudoscience (author)  schorhr10 years ago
Thanks i appreciate your help, i didn't quite get what you meant before about the metals actually creating the energy, how does that work? Surely the energy comes at least in part from the substance the metal is placed on? To be honest unless i missed something in science, i didn't even think metal could produce energy apart from when interacting with a magnetic field.
I might br mistaken, but all you need to make a battery is an anode and cathode made from 2 different metals and and an electrolyte so the ions/electrons can move- which would be the salty skin?

Oh here i googled up a nice explanation:

Metals do not produce energy, the metals react. Same as iron gets rusty, where it reacts with oxygen. Some reactions require energy to start, some produce energy/heat when running. Thats whats a battery all about.
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