Salt and Sand

It seems to me like there ought to be higher-tech ways of getting rid of ice.

On the sidewalks out there, especially on the north side, there's ice. You put sand on it and salt and that's pretty good. But it just craters it and it still remains basically slick.

Why can't there be some machine -- there probably is -- that has a fan at the bottom of it? You go along and melt the ice and that's the end of it? I suppose the answer is it would just freeze again. But maybe not, a little wind, or the heat of the heater, and it'd be essentially gone.

Or some way of crunching it.