North Pole Greenland Franz Josef Land,1894 Antique Colour Map

HISTORICAL CHART MAP

The North Pole can be defined in five different ways: 1. The Geographic North Pole, also known as True North, is the basis for the astronomic north pole, which is defined as approximately the point at which the axis of rotation meets the surface rotating counter-clockwise around the axis as observed from space. It is also the northernmost point on Earth; the point at which any linear direction of travel is south. The term North Pole by itself usually refers to this definition. 2. The Magnetic North Pole is one of the two poles of the Earth's geomagnetic field's dipole moment, specifically the one that is closest to the geographic north pole. Navigators refer to it as the magnetic north pole because by knowing the angular declination from it to the geographic north pole where they are (usually printed on maps) they can determine the direction of the geographic north pole. Ironically, the magnetic north pole happens to be the Earth's south dipole moment, because by custom the magnetic poles are named after the geographic poles they are nearest. This pole moves in various ways, in ellipses, in a random motion over eons, and by the two poles switching places, as explained in the article below. 3. The Geophysical North Pole is a term designed to clarify the ambiguity caused by term magnetic north pole as used by navigators to find the geographic north pole, when the Earth is treated as a magnet, as in physics. Ironically, the geophysical north pole is the same as the magnetic south pole, since the south end of magnets (such as the end of compass needles marked N) are attracted to the geophysical north pole. The reason for this confusion is in the origin of the terms north and south pole in physics. The north and south poles of magnets (the dipoles) are named for the poles of the earth they are attracted to when used as compasses, which was one of the original uses of magnets (see magnetism). 4. The Geomagnetic North Pole is the north end of the axis of the magnetosphere, the geomagnetic field that surrounds earth, currently at latitude 78°30' North, 69°, which north of Qaanaaq (Thule) in Greenland. Compasses are not affected significantly by this magnetic field. 5. The Northern Pole of Inaccessibility is defined as the point in the Arctic farthest from any coastline, and is at 84°03?N 174°51?W. Similar poles exist in the Pacific and Indian oceans, and there is a dry land pole of inaccessibility in the Antarctic

1890s Wood Engraving, Antique Map

Approximate Overall Size: 12 X 9 1/2 inches

CONDITION: Book Plate Map - Excellent Condition. Folded. As Scanned. German Text. Beautiful with excellent detail. Map Print Blank on the back