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Magnetism and Electricity (Classic Reprint)

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Magnetism and Electricity (Classic Reprint)

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Description

Excerpt from Magnetism and Electricity The most obvious character of magnetism is seen in the power of attracting masses of iron, which is displayed to a greater or less extent by magnetized bodies. This power of attracting iron was first observed by the ancients in an iron ore obtained from Magnesia in Asia Minor; hence the property was termed magnet ism, and when in more recent times its directive property was observed, the mineral itself was named the lead-stone or load stone. A steel bar if rubbed in one direction with the loadstone acquires similar properties; when poised horizontally, as may be done by supporting it upon a point, such a bar will take up a fixed position with regard to the poles of the earth; in this country it will point nearly north and south. The end of a magnetic bar which points towards the north is distinguished by a mark, and is hence often termed the marked end 0 the mag net. This peculiarity in the magnet of taking a fixed direction, renders it invaluable to the navigator. A magnetized needle attached to a card marked with the cardinal points, and properly poised, constitutes the mariner's compass. 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 technology 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.
Release date Australia
December 11th, 2018
Author
Audience
  • General (US: Trade)
Country of Publication
United Kingdom
Illustrations
140 Illustrations; Illustrations, black and white
Imprint
Forgotten Books
Pages
194
Publisher
Forgotten Books
Dimensions
152x229x10
ISBN-13
9781330043776
Product ID
23391657

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