Скачать или смотреть How does earth's magnetism influence the ship's Magnetic Compass - Geomagnetism

This video explains how the Earth's magnetism influence the ship's magnetic compass.
The concept of the shifting magnetic north and its difference with the geographic true north are explained.
What is variation, why does it occur, and how can we find the values from the chart is also answered.
The property of dip or magnetic inclination, the instrument used to measure it, and the chart available to find its values are also discussed.
Previous videos in this series discuss:
Magnetism - an introduction to the ship's magnetic compass:    • Magnetism - an introduction to the ship's ...  
Parts of the magnetic compass:    • Parts of the ship's Magnetic Compass - Bri...  
Deviation of the magnetic compass:    • Deviation of the Magnetic Compass - Swingi...