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
    Name or NavList Code:
    Email:
       
    Reply
    Re: Confirmation of a story I was told
    From: Greg Rudzinski
    Date: 2014 Jan 2, 19:21 -0800

    A pair of these prisms combined with a K9 on natures call may just send GPS into the dust bin ;-)


    Confirmation of a story I was told
    From: Norm Goldblatt
    Date: 2014 Jan 2, 18:32 -0800
    Attached is a photo of a beautiful retroprism I've had for decades. The guy who gave it to me said that it was one of many that framed the edges of a WWII US carrier. They were used to provide visual guide when there were enemies in the sky and blackout called. The idea is that these retroprisms always reflect light back in the direction from whence it came. A US pilot, with a lamp mounted on his head could see light from all the reflectors, as angle of incidence didn't matter, and the enemy could see nothing as it was unlikely that they had light sources so situated. Fiendishly clever, but true? Anyone ever hear this? Even if you say it's bunk, I'll still tell the story.
    Norm
    ----------------------------------------------------------------
    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?

    Get a NavList ID Code

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

    Enter the email address associated with your NavList messages. Your NavList code will be emailed to you immediately.
    Email:

    Email Settings

    NavList ID 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