The practice of detecting and observing electric currents using a galvanoscope; the technique of observing electrical phenomena.
From galvano- (galvanism) + -scopy (from Greek skopein, to observe). Represents the broader practice and science of observing electrical effects.
Galvanoscopy was how early scientists 'saw' electricity—not with their eyes, but by watching needles move and chemicals change, essentially translating an invisible force into visible evidence.
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