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: Lunars: Jupiter's BIG.
    From: Fred Hebard
    Date: 2003 Dec 29, 17:43 -0500

    If the error of the chronometer were increasing exponentially, I would
    rather have the instantaneous rate than the average rate, at least once
    the acceleration in the error was out of the lag phase.
    
    Fred
    
    On Dec 29, 2003, at 5:07 PM, Frank Reed wrote:
    
    > Fred wrote:
    > "If the rater were highly unlinear, and the functional dependence on
    > time unknown, the average rate would not be useful.  I believe George
    > was trying to point this out."
    >
    > Yes, maybe he was. As I said though, that's not necessarily relevant
    > to navigational practice. You can get a useful rate on a chronometer
    > with any pair of longitude verifications and usually they will be
    > separated by weeks. You're not getting the instantaneous rate, but it
    > is a "practical" and useful rate, and the fact that it is an average
    > rate may well make it more useful in practice instead of less useful.
    >
    > Frank E. Reed
    > [X] Mystic, Connecticut
    > [ ] Chicago, Illinois
    
    
    

       
    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