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Hold the metal rods in your hands and watch the volmeter's move - indicating the electrical current passing from the aluminum (left), to the copper (right). Experiment with cold or warm, dry or wet hands, or with several people holding hands. Is there an effect on the voltage meter?
Scientific Principle: Electricity in the human body
Needed Infrastructure: None
Size in mm: height: 200
width: 70
depth / length: 450
