Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Cold Air

  1. Jun 15, 2007 #1
    How does cold air travel?
    Isn't it like me flashing darkness at your face?
    Because cold is the absence of heat as darkness is absence of light.
    It's like nothing traveling.
    I know it's confusing.:confused:
  2. jcsd
  3. Jun 15, 2007 #2


    User Avatar

    Staff: Mentor

    Cold air is air....it travels like air. :confused::confused:

    Heat moves from warm areas to cold areas, though that isn't necessarily how air works because air moves as a mass and transfers heat through convection. If you have a cold reservoir and a warm reservoir (say, big blocks of steel) and connect them with a conducting material, the heat will travel from warm to cold. But the temperature profiles will be symmetrical, so it almost looks as though you can consider the heat to be flowing in one direction or the "cold" to be flowing in the other.
    Last edited: Jun 15, 2007
  4. Jun 18, 2007 #3


    User Avatar
    Homework Helper

    This could be turned into a nice limerick:

    How does cold air go about traveling?
    Isn't it like darkness unraveling?
    Cold is the absence
    of heat in this parlance
    of nonsense, I know it's confusing.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook