@oldnew.tech: Why Power-Line Insulators Have Ridges Those strange ridges on power-line insulators are carefully engineered. They lengthen the path electricity would have to travel across a wet or contaminated surface, helping prevent leakage and flashover. #Engineering #HighVoltage #ElectricalEngineering #HiddenTechnology #howitworked

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Monday 21 September 2026 20:57:00 GMT