Water Can Freeze at Different Temps

"A study in the Feb. 5 Science reports that water can freeze at different temperatures depending on whether the surface it rests on is positively or negatively charged. Under certain conditions, water can even freeze as it heats up."

http://www.sciencenews.org/view/generic/id/56134/title/A_charge_for_freezing_water_at_different_temperatures

Think of how we can use this new information!!! What about keeping ice from forming on aircraft wings, car windows, roads, etc......