Farthest North 1948. On , a US Navy submarine, also named , was the first to sail under the ice pack to reach the North Pole. On , the became the first submarine to surface at the North Pole. In 1968, British explorer Sir Wally Herbert became the first person to indubitably reach the Pole on foot, having sledged from Alaska. His expedition was supported by air drops. Farthest North Farthest North describes the most northerly latitude reached by explorers before the conquest of the North Pole rendered the expression obsolete. The Arctic polar regions are much more accessible than those of
North Magnetic Pole Because opposite poles attract, this definition means that the Earth's North Magnetic Pole is actually a magnetic "south" pole and the Earth's South Magnetic Pole is a magnetic "north" pole. The direction of magnetic field lines is defined such that the lines emerge from the magnet's north pole and enter into the magnet's south pole. Early European navigators believed that compass needles were attracted to a "magnetic island" somewhere in the far north (see Rupes Nigra), or to the Pole Star. The idea that the Earth itself acts as a giant magnet was first proposed in 1600 by the English