where magnetic north

Magnetic north, simply put, is the direction in which a compass needle points towards the Earth's magnetic field. This phenomenon occurs due to the presence of a large bar magnet deep within the Earth's core. However, it is important to note that the location of magnetic north is not fixed and varies slightly over time.

For designers and manufacturers of magnetic products, understanding the location and movement of magnetic north is critical. Inaccuracies in design or calculations can result in products that fail to function correctly or provide inaccurate readings.

To ensure precision in the development of magnetic products, it is necessary for designers to constantly update their knowledge of the location and movement of magnetic north. This includes regularly checking for updates from organizations such as the World Magnetic Model (WMM) and the British Geological Survey (BGS).