Dipole model of the Earth's magnetic field (MLAT), or geomagnetic latitude, formula_10 is measured northwards from the equator (analogous to geographic latitude) and is related to formula_9 by formula_12. In this case, the radial and azimuthal components of the magnetic field (the latter still in the formula_9 direction, measured from the axis of the north pole) are given by formula_14 formula_15 formula_16 where formula_17 in this case has units of Earth radii (formula_18). Invariant latitude is a parameter that describes where a particular magnetic field line touches the surface of the Earth. It is given by formula_19 or formula_20 where formula_21 is the invariant latitude and formula_22
The Longest Winter The Longest Winter The Longest Winter: The Battle of the Bulge and the Epic Story of World War II's Most Decorated Platoon is a non-fiction book written by Alex Kershaw and published in 2004 by Da Capo Press. It became a "New York Times" bestseller. It tells the story of the eighteen men of an intelligence platoon under the command by Lieutenant Lyle Bouck. Placed in a front-line position, the soldiers fought fiercely outside the village of Lansareth to prevent the German advance on the morning of the Battle of the Bulge. The Intelligence and Reconnaissance Platoon from the 394th