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I doubt it, that adds quite a bit of complication, but an interesting idea nonetheless. To me it looks like a purely mechanical device, no heat being used. It relies on the thin sides slicing through (which as others said wouldn't work on packed snow) and there might be a coating on the sheet of plastic to make it slick.
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[–] blumen4alles 0 points 1 point 1 point (+1|-0) ago
I doubt it, that adds quite a bit of complication, but an interesting idea nonetheless. To me it looks like a purely mechanical device, no heat being used. It relies on the thin sides slicing through (which as others said wouldn't work on packed snow) and there might be a coating on the sheet of plastic to make it slick.