Wouldn’t setting and facing a compass to 20 degrees West, mean the needle points 20 degrees east (on the compass face)?
In: Technology
There are 3 north’s. Magnetic, true and grid north. So to use a compass, you have to know the declamation angle, do some quick add or subtraction maths and now your north on your map is the same north on a compass.
The declamation angle is printed on the map and depends on where your at
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