2007-10-17 05:31:47 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
the earth's magnetic field is like one giant magnet. Only, a very weak one!.
The magnetic field is enough to influence free spinning magnets, with no other strong magnetic forces nearby to align to its axis, which is a roughly north-south position. This principle is used in the compass, and by knowing which direction is north, people can know which direction to navigate in.
However today the compass is replaced by GPS..
2007-10-17 05:38:50 · answer #1 · answered by ak_theone 1 · 0⤊ 0⤋
The magnetic field varies thruout the suface of the Earth. this magnetic variation has been maped out .Submarine navigators use these magnetic field maps to locate the position of the Submarine by comparing magnetic field measurements.
2007-10-17 12:50:49 · answer #2 · answered by goring 6 · 0⤊ 0⤋
compass. the arrow is attracted to the north end of the giant earth magnet. this is north.
2007-10-17 12:46:59 · answer #3 · answered by fryn 1 · 0⤊ 0⤋
With a compass.
2007-10-17 12:34:19 · answer #4 · answered by Anonymous · 1⤊ 0⤋
with a compass
2007-10-17 13:01:04 · answer #5 · answered by mojorisin 3 · 0⤊ 0⤋