Magnetic Graphite (Oxford Bell)

[clearchrome]

Nigel Cooper demonstrated that 2 diodes in parallel, with one in reverse direction
can draw stray currents through any large conductor, lighting the diodes indefinitely.

No electrolytes, no chemical reactions.

But back to the topic: The Oxford Bell (and similar devices)

See this:
https://en.m.wikipedia.org/wiki/Zamboni_pile

When talking about diodes, I suppose they are Germanium type diodes who gain energy from their local radiation which may not always work in no radiation zones (radiation is another principle).   

[clearchrome]

I can get over 1 volt with paper towel, carbon, and either Aluminium or gal steel no electrolyte but needs humidity. can run a calculator with 2 of them. needs 3 or 4 though to get an led to glow. Lower voltages on copper and SS . https://youtu.be/jBQg4GA8014

nice, what is the humidity in your case, is it only environmental humid. or you put a little water in the towels?

[Jimboot]

nice, what is the humidity in your case, is it only environmental humid. or you put a little water in the towels?

the coffee filters work best with environmental humidity. To the touch the moisture is not detectable. I have also used distilled water on the paper towels . With only a single metal and no acid or electrolyte I'm not sure of what the reaction is. To get a reading with ss and distilled water surprised me.

[Jimboot]

the coffee filters work best with environmental humidity. To the touch the moisture is not detectable. I have also used distilled water on the paper towels . With only a single metal and no acid or electrolyte I'm not sure of what the reaction is. To get a reading with ss and distilled water surprised me.

At 50% humidity last night the effect is negligible.

[kajunbee]

Thanks, I will try that. so the paper towel just uses your local humidity?

Never tried it with humidity only. The problem with aluminum is the oxide layer that forms which in turn kills the battery efficiency.