The Spinning Magnet: The Electromagnetic Force That Created the Modern World--and Could Destroy It

by Alanna Mitchell

That’s because in magnetic nomenclature, the pole from which the magnetic field flows is its north. The receiving pole is south. Today, the field flows from what we call the South Pole.

The angle of difference between the geographic pole and the magnetic line of force is known as declination.

That meant reading the difference between the stars that pointed to the geographic poles and the magnetic pole the compass pointed to. To them, that meant finding the longitudinal prime meridian.

So, the electrical force is produced by charged particles. Electricity, on the other hand, is electrons in motion.

dogs prefer to urinate facing north-south rather than east-west,

Most interesting thing I learned in the book. Will have to start watching for it.