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    Re: Amundsen at the South Pole
    From: John Huth
    Date: 2011 Dec 14, 16:16 -0500
    I have to do the conversions, but I recall that there were only a few occasions when the mercury froze on them.    There was a premature attempt at the pole where the mercury thermometers froze and Amundsen beat a hasty retreat, but as I recall the temperature was warm enough for liquid mercury on most of the trip.

    On Wed, Dec 14, 2011 at 3:47 PM, Young, Derrick CIV (US) DeCA HQ CI <derrick.young@deca.mil> wrote:

    I doubt that he would be able to keep it warm enough to be liquid.  Mercury freezes at -38F, and I am quite sure that it was a bit colder than that.


    Derrick Young

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    Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more." --Nikola Tesla, Austrian-American inventor and engineer


    From: navlist-bounce@fer3.com [mailto:navlist-bounce@fer3.com] On Behalf Of Apache Runner
    Sent: Wednesday, December 14, 2011 2:57 PM
    To: NavList@fer3.com
    Subject: [NavList] Re: Amundsen at the South Pole


    Maybe he was making sure it wasn't frozen or trying to keep it warm?



    On Wed, Dec 14, 2011 at 1:23 PM, Paul Werner <paul.werner@comhem.se> wrote:

    On top of the box is an artificial horizon not a chronometer.
    The explanation in the text is:
    "Helmer Hanssen (right) is bending over the artificial horizon, which is a tray of mercury."
    Why his is doing that - bending over the tray - I don't know.
    Paul Werner


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