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.
Therefore, Earth has two magnetic poles that are located near the geographic poles. A compass is a tool that uses Earthâs natural magnetism to show direction. A compass needle points to the magnetic north pole. Therefore, a compass will show you which direction is north.