Dew Point - Frost Point

The frost point is similar to the dew point, in that it is the temperature to which a given parcel of humid air must be cooled, at constant barometric pressure, for water vapor to be deposited on a surface as ice without going through the liquid phase. (Compare with sublimation.) The frost point for a given parcel of air is always higher than the dew point, as the stronger bonding between water molecules on the surface of ice requires higher temperature to break.

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Famous quotes containing the words frost and/or point:

    How the cold creeps as the fire dies at length
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    Till even the comforting barn grows far away,
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    Whether ‘tis in us to arise with day
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    —Robert Frost (1874–1963)

    The end of all stories, even if the writer forebears to mention it, is death, which is where time stops short. Sheherezade knew this, which is why she kept on spinning another story out of the bowels of the last one, never coming to a point where she could say: “This is the end.” Because it would have been.
    Angela Carter (1940–1992)