Excerpt from The Waverley Pictorial Dictionary, Vol. 6: Pole Snag The earth is a huge magnet, and it has a magnetic pole at each of two points, which are some distance from the geographical North and South Poles. The latter are situate at the points where the axis of rotation of the earth meet its surface. At the magnetic poles the lines of magnetic force are vertical, and the magnetic needle dips vertically. When the rth pole of a magnet is brought near the like pole of a magnetic needle the latter is repelled when the south or opposite pole of the magnet is brought near, the needle is attracted towards it. Like poles are repelled, and unlike poles are attracted. If the earth's axis were lengthened rth wards, it would almost pass through the pole-star a bright star, named Polaris, in the Little Bear group of stars. This star is always almost due rth of the observer, and so serves as a point by which to steer. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art techlogy to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.