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: New ways to create false horizons?
    From: Bill B
    Date: 2017 Jul 21, 17:23 -0400

    On 7/20/2017 11:23 PM, John D. Howard wrote:
    >   Pete,
    >
    > I have gone low teck to make my AH.  On a camera tripod I mounted a
    > board, horzontal, and put a clear plastic tube filled with water in a
    > "U" shape.  Into the two ends I put a bright blue plastic balls.
    
    Ah yes, the old bunyip-on-a-board trick. :-) Ingenious. I've put a
    couple of drops of red food coloring in the ends of the tube for
    relatively long-distance single-handed use. I used it once to find the
    height of the scope's objective lens center relative to spot due south
    atop a neighbor's privacy fence from a permanent vantage point to do
    meridian passage sights. So far have not laid out out the base for
    pyramids with a water and a trench....
    
    I like the idea of plastic balls that float. May I ask what you used for
    the balls?
    
    

       
    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