How long does static electricity last?



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    Static electricity is an electric charge on the surface of an object. We experience it commonly as the Triboelectric Effect, when two objects are rubbed together, and the positive and negative charges become separated.

    On Earth our clothes and the air usually have enough humidity to be conductors, so static electricity charges on us bleed gently into the ground. (Or they leave quickly, in a spark, when we touch something!)

    But where there is nothing to conduct the charge away, no air, no moisture, no clothes, no ground, say, someplace in deep space, a static charge could remain essentially indefinitely?

    (“Universe Today” has a nice article about static electricity, not only on Earth, but on Mars, where it may be a major problem.)

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