Welcome to the NavList Message Boards.


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

Compose Your Message

Add Images & Files
    Re: Arificial Horizons and Tea
    From: John Kabel
    Date: 2003 Jul 9, 13:49 -0400

    I suspect that the surface tension of tea (steeped, not dry solid) is
    substantially lower than water because of all the acids and tannins and
    other goodies dissolved in it.  That will be a primary consideration in
    wave height and durability.
    Mercury!! Were they kidding??  Bad enough in a barometer or
    thermometer, where the glass is about as hazardous, but very bad in the
    open.  I hope nobody is still using it, in this group.  A license to
    die young.
    John Kabel
    London, Ontario.
    > Stayed up past bedtime with the pan of water and pan of tea. An hour after
    > nautical twilight Arcturus still couldn't be conjured in the tea. Perhaps just
    > my 76 year old eyes. Earlier in the evening the tea had demonstrated
    > superiority in reflecting treetops, etc.
    > Jared's hunch about boiled water is a concern. This artificial horizon
    > drinkability question is opening a new and interesting aspect of celestial
    > navigation. Boiled water doesn't show me much. I'm hoping we'll get past the boiled
    > water thing and find that the phenomenon depends on a quality inherent in tea. If
    > these admirable qualities are in tea, then there's reason to believe they
    > will be found more abundantly in red wine.
    > Much work remains to be done.
    > Bruce

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    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 Settings

    Posting Code:

    Custom Index

    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