Download or read book North Pole, South Pole written by Gillian M. Turner and published by The Experiment. This book was released on 2011-01-11 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the issues of geomagnetism, including why the Earth's magnetic north differs from its geographic north, how animals use geomagnetism for migration purposes, and the source of the magnetic field.