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    Fury's Avatar
    Fury Posts: 3, Reputation: 1
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    #1

    Aug 30, 2004, 04:06 AM
    Convection
    Here on earth, if heat rises and cold sinks, what happens in space where there is no (or at least less) gravity?
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #2

    Aug 30, 2004, 04:53 AM
    Re: Convection
    Heat does not rise on earth. It is a fluid that is warmer that is displaced by cooler fluid that is heavier because of thermal expansion. Thus, heat may be transferred to a higher point. In the vacuum of space, heat can only be transferred by radiation.
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