How does the GPS network work? Share this:EmailFacebookTwitterLike this:Like Loading... Related June 29, 2006 Category Think Tags Stuff Liz Starts walking Dinosaur Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.