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Power Grids On 5 Continents Pulse Every 60s. Scientists Think They Know Why

"ScienceAlert is reporting that researchers may have finally determined why, for many years, power grids around the world have been pulsing every 60 seconds," writes longtime Slashdot reader fahrbot-bot. The likely culprit? Uninterruptible power supplies running routine battery checks. From the repo...

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