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    Re: Children's land-locked "Sextant"
    From: Alexandre Eremenko
    Date: 2007 Nov 29, 09:43 -0500

    
    On Thu, 29 Nov 2007 glapook---.net wrote:
    
    > There is a big difference in risk from
    > exposure to mercury vapor on an everyday basis
    > for many years in an
    > inclosed space (your example and the classic "Mad Hatter") and the
    > occasional use of it outdoors for navigation.
    > "Why voluntarily expose
    > yourself to" it? because it works very
    > well for this purpose, better
    > than anything else and the risk is minimal.
    
    Spilling mercury outdoors will expose fish and other
    wildlife for many years.
    
    Alex.
    
    
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