If you have ever been camping or hiking
you may have used a compass and a map to find your way. By using these
tools you can keep from getting lost in the woods. Below is a description
of how you would use a compass with a topographic map to determine the
direction you would need to walk in order to reach your destination.
Use the controllers on the movie
screen to begin. Read along if you wish.
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The first step is to find the magnetic
north symbol in the map legend. From the magnetic north line, draw
paralell lines on the map as demonstrated hear. If you do not have
a ruler, you can use the edge of your compass. |
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The second step is to locate your destination. Two
circles have been drawn on this map to show the original location
and the destination. Once the destination is determined the edge
of the compass should be aligned with the line of travel.
Once the compass is aligned, the dial should be turned so that the
blue lines on the base of the compass are parallel to the magnetic
north lines drawn on the map. Now the degrees can be read on the
compass. The degrees are read using the north- seeking arrow on
the compass.
Knowing the degree of the destination, hold the compass in front
of you at chest height. Turn your body until the compass reads the
degrees you just determined on the map. Identify a visible landmark
and walk in that direction. |