Compass Variation Map – The difference between magnetic north and true north is measured as the variation or declination. If hikers are using a compass to get a general sense of direction, this isn’t much of an issue. . Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www .
Compass Variation Map World Magnetic Model (WMM) | National Centers for Environmental : These lines inside the compass housing help align the compass with the north on a map. The arrow in the center is the orienting arrow and will stand out in length from the other lines near it. . An Empathy map will help you understand your user’s needs while you develop a deeper understanding of the persons you are designing for. There are many techniques you can use to develop this kind of .