Ford has beaten General Motors for the first time in nearly a century, in terms of number of US factory workers. Ford has 50,703 to GM's 50,300 or so.
Answers. Well, the simplest answer is that the astrolabe pretty well had to be used at night and could not be used in bad weather. The compass, which relys on the magnetic field of the Earth rather than a visualiztion of the stars, works at any time, and in any weather.
You also should remember that the end of the compass needle which points north is the north pole of the magnet and the end which points south is the south pole. Ordinarily, when a compass is not close to another magnet, it is attracted to the earth s magnetic field.ou also should remember that the end of the compass needle which points north is the north pole of the magnet and the end which points south is the south pole. Ordinarily, when a compass is not close to another magnet, it is attracted to the earth s magnetic field.