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Most speakers contain a magnet.All of the cell phones contain magnet in the speaker portion.All the phones are also contained many little pieces of wire that could magnetize,it must be a ferrous metal wire copper will not work.With these two items you can make a very accurate improvised compass.
Sweep the magnet across the metal wire in the same direction 10 or more times.Make a mental note of the direction you are sweeping in the magnet.This is the end of the wire that will point NORTH.You can then float this metal wire in a small pool of water on a small leaf or shaving of wood.it must be a completely undisturbed pool of water with no current so as to not affect the results.The wire will align itself with the end you noted above pointing north.Right of north is east and left of north is west.Now you know direction.
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