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: Glowing Sea Surface
    From: George Huxtable
    Date: 2003 Nov 10, 18:52 +0000

    Jared Sherman said-
     From physics and chemistry you can learn that there is some tritium in all
    water, and tritium does glow, but if you could never see that emission in
    normal seawater.
    Response from George-
    I wonder if Jared is thinking of Deuterium, the isotope of hydrogen that is
    bonded into heavy water, which makes up a small part of all water. Tritium,
    another isotope of Hydrogen, is unstable, decaying with a half-life of
    about 12 years, which is one reason why those Hydrogen bombs need to be
    "refurbished" at regular intervals. Small quantities of Tritium result from
    cosmic ray bombardment, but because of this decay it does not accumulate to
    any extent. Any Tritium content in the world's oceans would only be
    present, in minute quantities, as a result of nuclear processing or testing
    over recent years. It's hard to imagine such Tritium content emitting
    enough light energy to cause a visible glow, under any circumstances.
    Perhaps Jared can provide some references, rather than just "from physics
    and chemistry".
    Nor does Tritium, on its own, glow. Yes, many self-luminous light-sources
    use Tritium to supply their energy, but the low-energy beta-particles that
    Tritium emits generate light by ending up in a fluorescent screen, such as
    Zinc Sulphide. There's no glow from the Tritium gas itself, as far as I
    I suggest, then, that Jared has raised a false trail.
    contact George Huxtable by email at george@huxtable.u-net.com, by phone at
    01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy
    Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.

    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