Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Reaching the pole. (was Nautical Almanac)
    From: Trevor Kenchington
    Date: 2002 Jul 2, 21:42 -0300

    George Huxtable asked, amidst much else:
    
    > What temperature does Mercury freeze at?
    
    
    -39 Celsius or thereabouts. (-38.842 according to the CRC Handbook of
    Chemistry and Physics, though I dare say that the third decimal place
    depends a bit on assorted factors.)
    
    I'm not sure of summer temperatures at the Pole but winter ones on the
    Canadian prairies are said to drop below -40 (the point at which the
    Celsius and Fahrenheit scales are numerically equal) from time to time
    and I'd guess that the Pole is colder. So the mercury in Amundsen's
    artificial horizon could well have turned into a useless lump of solid
    metal.
    
    
    Trevor Kenchington
    
    
    --
    Trevor J. Kenchington PhD                         Gadus{at}iStar.ca
    Gadus Associates,                                 Office(902) 889-9250
    R.R.#1, Musquodoboit Harbour,                     Fax   (902) 889-9251
    Nova Scotia  B0J 2L0, CANADA                      Home  (902) 889-3555
    
                         Science Serving the Fisheries
                          http://home.istar.ca/~gadus
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site