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4cdarth 2 points ago +2 / -0

Propellers have a similar system. They have brushes that contact a special surface that transfers electricity to the propeller blades at certain times. This causes a heating element under a rubber pad at the blade of the propeller to heat it up, melting ice. Why wind mills don't have this? Idk!

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RatioInvictus 3 points ago +3 / -0

Because you don't need them since "global warming." See? That's what leftist thinking gets you. Accepting lies is lethal.