• The sun's magnetic north and south poles were in their respective northern and southern hemisphere several months ago.

    CNN: Sun flips magnetic field

  • Furthermore, scientists are keen to find out if the Earth's magnetic poles are about to "flip" - with magnetic North becoming South, and vice versa.

    BBC: Planet Earth

  • In 1998, Mr Hempleman-Adams became the first person to complete the Adventurers' Grand Slam after climbing the highest peaks in seven continents and reaching the geographic and magnetic North and South Poles.

    BBC: World explorer Hempleman-Adams: 'I've been lucky'

  • His handwritten field notes show street by street calculations in "chain lengths, " a painstaking process that used metal chains and heavy brass compasses, theodolytes and geodesic transits to reconcile the difference between true north and magnetic north readings.

    WSJ: The Greatest Grid | Museum of the City of New York | Crosshatching a Miracle | By Ada Louise Huxtable

  • The magnetic field forces the particles toward the north and south poles.

    CNN: 'Dancing lights' draw thousands to frozen north

  • Grand plans for European-style double-decker trains were rejected as impractical, as were schemes for a high-speed rail route (run, in the wildest of dreams, on magnetic-levitation technology) connecting London to the north.

    ECONOMIST: Railway reform

  • Another which has been getting increasing attention could be delivered via the kind of nuclear-armed ballistic missile that Iran and North Korea have been developing: a strategic electro-magnetic pulse (EMP) attack.

    CENTERFORSECURITYPOLICY: America's Achilles' Heel

  • It is reckless at a time when countries like North Korea and Iran are acquiring missiles capable of delivering devastating electro-magnetic pulse (EMP) or other nuclear attacks against this country.

    CENTERFORSECURITYPOLICY: Get real on nuclear deterrence

  • Tackling the real North Pole is estimated to take at least four times as long as the magnetic pole, which, at present, is considerably further south.

    BBC: Sir Ranulph Fiennes: Up the Pole

  • The thin magnetic films can be manipulated to trigger vastly different signals depending upon which direction they face (basically "north pole" and "south pole"), allowing them to be read as the ones or zeros of basic computer code.

    FORBES: Total Recall

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