Cyclopedia of Applied Electricity, Vol. 1 of 7: A General Reference Work on Direct-Current Generators and Motors, Storage Batteries, Electrochemistry, ... Electric Lighting, Electric Railways, Power - Softcover

Society, American Technical

9781333119782: Cyclopedia of Applied Electricity, Vol. 1 of 7: A General Reference Work on Direct-Current Generators and Motors, Storage Batteries, Electrochemistry, ... Electric Lighting, Electric Railways, Power

Softcover

ISBN 10: 133311978X ISBN 13: 9781333119782

Verlag: Forgotten Books, 2018

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Excerpt from Cyclopedia of Applied Electricity, Vol. 1 of 7: A General Reference Work on Direct-Current Generators and Motors, Storage Batteries, Electrochemistry, Electric Wiring, Electrical Measurements, Electric Lighting, Electric Lighting, Electric Railways, Power Stations, Switchboards, Etc

NE of the simplest acts in modern life is switching on the electric current that gives light or power, or that.

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Excerpt from Cyclopedia of Applied Electricity, Vol. 1 of 7: A General Reference Work on Direct-Current Generators and Motors, Storage Batteries, Electrochemistry, Electric Wiring, Electrical Measurements, Electric Lighting, Electric Lighting, Electric Railways, Power Stations, Switchboards, Etc

It was also known to the ancients that artificial magnets may be made by stroking pieces of steel with natural magnets, but it was not until the twelfth century that the discovery was made that a sus pended magnet would assume a north-and-south position. Because of this property natural magnets came to be known as lodestones (leading stones), and magnets, either artificial or natural, began to be used for determining directions. The first mention of the use of a compass in Europe is in 1190. It is thought to have been introduced from China.

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.

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