Magnetic declination
Top View
- Four Centuries of Geomagnetic Data from Historical Records
- Making and Using Sundial
- Finding Your Way with Map and Compass
- Topographic Maps: the Basics
- Convention Used for the Equation of Time
- Mid-Continental Magnetic Declination: a 200-Year Record Starting with Lewis and Clark Robert E
- Verification of Magnetic Declinations Computed by World Magnetic Model
- Mercator Projection Map (Edited from Wikipedia)
- Map Projections and GPS Cartography
- Geomagnetics
- Circular of the Bureau of Standards No. 402: Sundials
- Navigation Lesson 6
- Basic Map & Compass Skills
- Compass Manual – Baseplate Compasses
- Where IS North? 3
- Finding Your Way with Map and Compass
- EUROPEAN LONGITUDE PRIZES I. LONGITUDE DETERMINATION in the SPANISH EMPIRE Richard De Grijs Department of Physics and Astronom
- Magnetic Declination