William Sturgeon
Published: 2017-10-20
Total Pages: 510
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Excerpt from The Annals of Electricity, Magnetism, and Chemistry, Vol. 3: And Guardian of Experimental Science; July, 1838, to April, 1839 The bolts, water-tanks, guns, shot, stores, and engines, all' according to their size, positions, and distances (and, I may add, hardness or softness of their metals), must be taken into any mathematical calculation: and even were it possible to do this. The conclusions would but be correct for smooth water. For every time the ship pitched or rolled, the power of the centre of attraction would change; because, as above stated, the magnetic condition of iron depends on its position, as well as on its size and distance from the needle. Each time, therefore, it changed its position, with respect to the direction of the dipping needle, it would alter in its magnetic condition. 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.