Free battery
Sunlight is oscillating electricity moving around earth westward constantly. It induces a direct current in conductive materials such as compasses and atmosphere. This is the mechanism of polar lights and earth magnetic field.
We can make a battery to collect this sunlight induced current to make a free battery.
Such as a thin copper plate on the roof that has two terminals on the edges of the east and west directions.
This battery generates DC constantly for free. The voltage of this current is proportional to the distance of the terminals and the current amount is proportional the width of the copper plate.
Have you tested your idea yet? Can you be more specific on the construction of the generator?
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