It is important to use the magnetic bearing instead of the true bearing to determine direction on topographic maps because it has 360 degree points instead of the 16 points of a compass, it is more precise than direction.
What is magnetic bearing?
A magnetic bearing is a type of bearing that uses magnetic levitation to sustain a load. Moving parts are supported by magnetic bearings without any physical contact.
They can levitate a rotating shaft and allow relative motion with very little friction and no mechanical wear.
When determining direction on topographic maps, it is crucial to utilize the magnetic bearing rather than the true bearing because it contains 360 degree points instead of the 16 points of a compass and is more precise.
Therefore, the person is using the magnetic bearing instead of the true bearing to determine direction on topographic maps.
Learn more about the magnetic bearing, refer to:
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