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: Test your magnetic compass.
    From: Alexandre Eremenko
    Date: 2012 Nov 16, 23:34 -0500

    Dear Lu,
    
    >�Magnetic deviation when bringing a compass near a light switch may
    > have nothing to do with electrical flow.�Instead, depending on the age
    > of your house and the building codes in effect, it may be due to either
    > metallic sheathing around the wires (BX cable) and/or metal electrical
    > boxes holding the switch.
    
    I thought all this is of aluminium. But I will experiment more:-)
    
    > Most stud finders work on the basis of ultrasound.
    
    I like low-tech things (this is one reason why I am on this list:-)
    The stud finder I use is a little piece of
    metal on a pivot. Similar to a compass needle. It definitely reacts on
    iron nails.
    
    Alex.
    
    
    
    
    
    
    
    
    
    

       
    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