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: Bris does not work
    From: Greg Rudzinski
    Date: 2012 Jul 26, 08:55 -0700

    Alex,

    The number of visible Sun images is dependent on the amount of shading. On a homemade version using variable polarizers the dimmer images disappear with increased shading. Your original model may have gained shading properties in the built in shade or become opaque with age. Try cleaning with alcohol on all the surfaces. Use a string soaked with alcohol to clean the internal surfaces.

    On the homemade versions of the Bris I stopped using superglue because it would strangely fog up over time. The superglue would also come apart after extreme temperature changes. The substitute adhesive is clear lacquer (nail polish) which hasn't fogged or come apart yet.

    Greg Rudzinski
    ----------------------------------------------------------------
    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com
    ----------------------------------------------------------------

       
    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