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: A quarter-millennium of almanacs
    From: Herbert Prinz
    Date: 2017 Sep 14, 08:49 -0700

    I agree with Alexandre. His answer is very clever, because it depends on the definition of "predictable".

    Frank's puzzle raises the question for whom the NA is designed and made. Obviously not for the small boat cruiser, whom it may take two or three years to complete a circumnavigation, but, who also does not need (leap-) second precision. So, what is its declared purpose? This question is my puzzle.

    Herbert

       
    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