How many of you have ever used a compass?  A compass is designed to always tell you which way is north, because one end of the needle is magnetized, and without outside interference from a magnet, it will read correctly.  If you know which way is north, you can plot the direction you wish to go and find your destination.  That is IF you know which way is north.  But suppose the compass is broken?  Then you’re without a clue which way to go. Continue Reading »