Compass (magnetic compass) is a basic navigation device that uses the earth’s magnetic poles to point a magnetized needle towards the north pole. A compass works because the earth’s rotation (and some theories add that the molten lava in the Earth’s crust) create 2 magnetic poles that allow a magnet (the compass needle) to be […]
Map Reading – Contour Lines
If this is the first time you are joining the Map Reading series, you should start from the first post. Last time we covered symbols on a topographic map and I mentioned contour lines as a symbols on the map, but they are much much more than that. Contour lines are the heart of a […]