Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Artificial Horizon.
    From: Jared Sherman
    Date: 2002 Apr 1, 16:53 -0500

    Fr. Kooi-
     I stand by what I said. A *strip* of copper will not be dampened by a 
    magnetic field. A *coil* of copper, wound like a coil in a motor, becomes 
    subject to induced voltages when a changing magnetic field is present. But 
    those voltages do not flow, and there is no resulting motion, unless there is 
    some type of closed coil or other circuit.
     A simple strip of copper, as per the orginal description, should be 
    unaffected by a nearby magnet. Try holding  piece of copper next to a 
    magnet--there is no attraction, no motion, no dampening. The results with a 
    helical coil will be the same. The results only change when a circuit is 
    established (i.e. a closed motor coil) so that the electricity may flow in 
     Perhaps I'm focusing too tightly on the term "strip", but I don't think any 
    simple strip of copper will be dampened by a magnetic field.

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    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 Settings

    Posting Code:

    Custom Index

    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