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Melting Away Ice Hazards

RadioheadKid writes "Dartmouth College Professor Victor F. Petrenko is getting a grip on ice. He and his colleagues have found ways to take advantage of the "protonic" semiconductor properties of frozen water. They see many applications of this discovery from melting ice on power lines to electronic speed control for skis and snowboards. I guess those Petrenkos just love the ice."

5 of 131 comments (clear)

  1. Fascinating stuff by The+Tyro · · Score: 4, Interesting

    Protons carrying the charge, hmmm? I suppose any charged particle could theoretically carry a current, but I must admit I never thought of "proton flow" as a way to do it...

    Water really is an interesting material.

    Universal solvent (polar solvent, for you organic chemistry nitpickers)

    Has its greatest density BEFORE it reaches its solid state of matter (ice). If you ever wondered why ponds and rivers don't freeze from the bottom up, that's the reason. Someone correct me, but I think the temperature of greatest density is 39F.

    That's really quite a discovery... can't wait to see if they can make something useful out of it.

    --
    Even if a man chops off your hand with a sword, you still have two nice, sharp bones to stick in his eyes.
  2. Europa Exploration? by MystikPhish · · Score: 4, Insightful

    So could this effect be applied to the skin of a Europoa ice rover that would melt its way through 2km of ice?

    I always hear that using heat to melt it would be impractical, but with a drill and this electric field effect maybe something more energy efficient could be done?

    --
    "I'm about to drop the hammer and dispense some indiscriminate justice!"
  3. Re:Science solving real problems in the world by jeti · · Score: 5, Insightful

    Powerlines that don't break under the load of ice.
    Trains operating in extreme weather because rails
    and cables can be cleaned of ice fast and efficiently.
    Fast de-icing of car windows.
    Maybe car tires with a far better grip on ice and
    new snow mobiles that are able to climb extreme
    slopes (for alpine rescue crews).

    This tech will likely save more than a few lives.

  4. 4 deg C is greatest density by spineboy · · Score: 4, Informative

    That's for relatively pure water, and that works out to be about 39 deg F. OF course adding salts and other things to raise the molarity (ionic concentration) of the water will depress the freezing point - I've forgotten what it'll do tho the density curve something about packing inefficiencies

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    ..........FULL STOP.
  5. what a cool guy... by mtec · · Score: 4, Funny

    There once was a man named Petrenko
    who found flow where you'd not think to think so
    In white Russian ice
    he could make juice flow nice
    now he dreams of cool cash and green dough

    --
    Cake or Death? Cake Please!