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Thread: What is convection and radiation? (Quick Check Up)

  1. #1 What is convection and radiation? (Quick Check Up) 
    New Member
    Join Date
    Oct 2012
    Hey guys quick task, please correct me if I am wrong:

    - convection is when heat travels through a liquid
    - Radiation is when heat is transferred through gasses


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  3. #2  
    Moderator Moderator
    Join Date
    Nov 2011
    city of wine and roses
    No, no, no.

    I don't know what text you're working from but you'd better get the basics straight. Convection - Wikipedia, the free encyclopedia

    I'm not so sure that the wiki page on radiation is suitable for beginners. looks to be a good introduction.

    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
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  4. #3  
    Universal Mind John Galt's Avatar
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    Jul 2005
    Adelady's links are good. Here is a very simple summary.

    Convection transfers heat by the mass movement of particles, so it works in gases and liguids (i.e. fluids).
    Conduction transfers heat by communicating thermal movement between adjacent particles. It dominates in solids.
    Radiation transfers heat by electromagnetic radiation from hot particles. It will occur through any transparent medium.
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