dew point

     

The ew point (sometimes spelled dewpoint) is the temperature to which a given parcel of air must be cooled, at constant barometric pressure, for water vapor to condense into water. The condensed water is called dew. The dew point is a saturation point.

Trivia about dew point

  • Fog may form when air cools to this "point" or when moisture is added to air near the ground
  • (Jimmy of the Clue Crew shows two glasses of water, one with ice.) Condensation won't necessarily appear on a glass filled with water, but with ice added, a glass reaches this point, & the condensation forms
  • Name for temperature at which water vapor in the atmosphere begins to condense

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