The Noon Fix: The simplest possible backup to GPS. The only battery required is in the watch.

By James N. Wilson

A simple yet accurate method for determining position from observations of the Sun near noon is presented. It uses an enhancement of the graphical method presented in Position from Observation of a... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 1438958668
• ISBN13: 9781438958668
• Release Date: March 2009
• Publisher: Authorhouse
• Length: 72 Pages
• Weight: 0.40 lbs.
• Dimensions: 0.1" x 8.3" x 11.0"