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: C.Plath on Ebay
    From: Bill B
    Date: 2005 Jun 10, 02:53 -0500

    > Yes, of course.
    > This picture could be used in a beginner's
    > textbook to explain what is "collimation error":-)
    > Modern sextant scopes (for the reasons that excape me)
    > do not have collimation error adjustment,
    > with one exception: the inverting scope of SNO-T.
    > Once Bill suggested to adjust collimation error
    > with a hammer...
    
    Alex
    
    Hoisted on my own petard.
    
    For the record, the suggestion was tongue-in-cheek.  The "bigger-hammer"
    school of impact adjustment, AKA, "If it doesn't go, force it.  It it
    breaks, it needed replacement anyway."
    
    Personally, I do not subscribe to that theory past a rubber mallet with the
    point of impact broadened by worn underwear.
    
    Bill
    
    
    

       
    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