Quote:
Originally Posted by J_Player
Interesting experiment. You found that the moisture content would determine how much voltage could be detected from the battery, which could be used to extrapolate to how voltages produced by "ground batteries" can change when the moisture content of the ground is changed.
Best wishes,
J_P
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Yes, without the moisture, the fet can't be managed. Here I don't use corrosive liquid, only few drops of water (2 or 3) and a few zinc oxide. Maybe content of minerals in soil + the sand + moisture acts as the zinc + the zinc oxide (many kinds of oxides exists in the soil) + water: This is the negative pole. And the positive is the solid metal, a coin for example.