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: On the integration of location and data
    From: Lu Abel
    Date: 2009 Nov 02, 21:28 -0800

    
    
    frankreed{at}HistoricalAtlas.com wrote:
    > And now we just need someone to write some applications that feature the 
    celestial navigation data prominently. This could inspire a really dramatic 
    increase in the number of people who are interested in celestial navigation.
    Ah, yes, I can see it now.  I point my iPhone at a celestial body.
    Between the built-in compass and the built-in GPS and the built in
    tilt-angle sensor, it figures out what body I'm pointing at and quickly
    uses the tilt angle (accurate to 0.1 minute, of course) to do a quick
    celestial reduction to generate a LOP.   Do it several times and there I
    have it, my position!
    
    Hey, all I need is a built-in gyro (maybe one of those laser ones) and
    I've also got a DR position!
    
    (Hmmm, wasn't all this part of a "sextant for the 21st century"
    discussion a while back? -- just point and shoot??   Then I wouldn't
    need to use a GPS will all that untrustworthy electronics :-) )
    
    While a "traditional" GPS doesn't necessarily have or need a built-in
    compass, if one thinks about it for a moment one realizes that
    automotive navigational systems DO need a built-in compass.   Else if
    you punch in an address while parked, how would they know whether or not
    to make the first instruction "make a U-turn?"
    
    --~--~---------~--~----~------------~-------~--~----~
    NavList message boards: www.fer3.com/arc
    Or post by email to: NavList@fer3.com
    To unsubscribe, email NavList+unsubscribe@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