In local papers across the country, nerdy scientists have been quoted at length about magnetic poles reversing.
The position of the south magnetic pole in 1840 as deduced from the magnetic poles.
Its germ was the Cartesian vortices, suggested by the curvilinear forms of iron filings in the vicinity of magnetic poles.
Declination is due to the fact that the geographical and magnetic poles do not coincide.
On approaching the magnetic poles, compasses become sluggish, for the horizontal deflecting force falls off rapidly.
Each human system has two magnetic poles—one positive and one negative.
The currents in the plate are therefore from the centre by the magnetic poles towards the circumference.
There are two magnetic poles just as there are two geographical poles, one in the southern hemisphere, the other in the northern.
The earth's magnetic poles are neither symmetrically placed nor absolutely fixed in position.
The horizontal force vanishes of course at the magnetic poles.
|magnetic pole |
The spot on the Earth toward which a compass needle will point.
Note: The north magnetic pole is not located exactly at the geographic North Pole. Therefore, depending on where a compass is, its needle may not point exactly north.
Note: The variation between magnetic north and “true” north is usually shown on navigation maps as the “angle of declination.”