Feedback appears to doubt that cows may dance in response to electric fields (20 January). I wouldn't put it past cows in certain pastures to put on a bit of a dance. Badly installed single-wire earth return (SWER) electricity distribution systems can indeed result in great potential differences in the soil between the beast's front and hind legs. And, although illustrator Paul McDevitt may not have intended this, dancing on one pair of hooves would perhaps lessen the creature's discomfort.
Of course, SWER distribution greatly reduces the cost of electricity distribution in rural areas.
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