To do this, researchers at Iowa State University embedded electrodes into the concrete and powered the electrodes. When they turned on the electricity the electrodes began to heat up the concrete around them, which would make the snow on top melt. The even cooler part is that although an entire runway costs about 200 million dollars to heat, it is projected to save passengers, airlines, and airports 273 million per heated runway. Useful and money well spent!
https://www.today.com/money/could-heated-runways-melt-away-your-winter-travel-headaches-t121729
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