by Leezee on December 27th, 2005

Leezee

Question

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I know that if you go into space without a suit you will freeze. But how do you freeze so quickly when there are no particles to transfer heat to? Shouldn't you be perfectly insulated?

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  • by Quirkie on January 8th, 2006

    Quirkie

    You radiate the heat. You're shining like a small infrared sun.
    In a cosy environment on earth, you are receiving heat radiation from the environment which offsets the amount you are losing through radiation. In space all your radiated heat is lost.

    That's why, in a thermos vacuum flask, there is a layer of vacuum, and in addition, the glass bottle is silvered, to reflect heat radiation.

    Comments
    • Thanks quirkie. Too easy now that you've explained it!!!!

      Leezee

      by Leezee on January 9th, 2006

    • we put out 100 watts each (i learned that in a lecture about observatories, in which the heat is a nuisance)

      purplecows

      by purplecows on September 13th, 2009

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