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[Phys-l] copper cleaning



I have a tarnished solid copper pole, about 1.5 cm thick and 40 cm long. I
hope to use it for heat/electricity demos. What is the best way to make it
look shiny? I have searched online and found a variety of ways, from using
vinegar to steel wool. Thought I'd ask the experts first before I try
anything. And once cleaned, what's the best way to store the pole to
preserve the surface? Wrapped tightly in plastic?