Books with title A Course of Lectures on Electricity, Delivered Before the Society of Arts

Excerpt from Course of Lectures on Electricity: Delivered Before the Society of ArtsIn 1886 I was asked to give a course of lectures to the Society of Arts. Shorthand notes were taken of these lectures, and the first five lectures in the present volume are compiled from these notes, but with some alterations. The lectures were primarily intended for an intelligent audience, ignorant of electrical science, but anxious to obtain sufficient knowledge of the subject to be able to follow the progress now being made in the science. It is to such persons that the following pages may perhaps be useful. The sixth lecture is introduced with the object of showing the applications of the general principles to one department of practical engineering. It was originally delivered at the Electrical Exhibition at Philadelphia in 1884, at the request of the Franklin Institute.In the course of these pages it has been my object to present in clear language the fundamental facts which govern electrical phenomena, and in such a manner as will leave the reader nothing to unlearn.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Excerpt from A Course of Lectures on Electricity, Delivered Before the Society of ArtsSheet of glass. B. Silk rubber. C. Light metal ball on stiff fibre of shellac, suspended by a thread. If C has previously touched A it moves from A towards B. If it has touched B it moves from B towards A.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1891 Excerpt: ... proves rotation of the ether or of the molecules in the interior of magnetised bodies. We have now seen many connections between magnetic phenomena and purely mechanical motions; but, even at the risk of tiring you with the subject, I must draw your attention to another class of phenomena attendant upon the magnetisation of iron which was first discovered by Joule. He proved that when an iron bar is magnetised Fig. 10.--Bidwell'g apparatus. C is a coil of wire, It an iron rod working the lever, L, which has a fulcrum F The lengthening or shortening of the rod E is shoTM by the movements of a spot of light reflected from the mirror, M, on a pivot, P. its length is increased. It has been supposed by some that the cause is to be found in a greater length of the molecule of iron along its magnetic axis, so that when all the molecules are twisted so that their lengths all point one way the bar is lengthened. This view is rather weakened by the subsequent discovery of Mr. Shelford Bidwell, who has confirmed Joule's discovery so far as moderate magnetisation is concerned. But he finds that when the magnetisation is increased the bar ceases to expand, diminishes to its natural length, and with very powerful magnetising forces actually contracts to a considerable extent. As to the causes of these phenomena we are in darkness. But I feel confident that they are bound to tell us a great deal about the true physical meaning of magnetism. I consider myself fortunate in being able to show you with Mr. Bidwell's assistance the results which he has obtained. The apparatus used by him consists of a piece of iron rod fixed at the lower end, but pressing upwards on a lever. The long arm of that lever acts upon a mirror resting on a pivot, so that if the iron rod lengthens it...

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

This is a reproduction of a book published before 1923. This book may have occasional imperfections <br /> such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, <br /> or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, <br /> have elected to bring it back into print as part of our continuing commitment to the preservation of printed works <br /> worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. <br /> <br/><br/> <br /> ++++<br/> <br /> The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: <br /> <br/>++++ <br /> <br/><br/>&lt;title&gt; A Course Of Lectures On Electricity Delivered Before The Society Of Arts<br/><br/>&lt;author&gt; George Forbes<br/><br/>&lt;publisher&gt; Longmans, Green &amp; Co., 1891<br/><br/>&lt;subjects&gt; Science; Electricity; Electricity; Science / Electricity; Science / Electromagnetism; Science / Magnetism

Excerpt from Course of Lectures on Electricity: Delivered Before the Society of ArtsThe researches of our philosophers in a worthy manner is no easy task, and requires a special aptitude, and I have felt that to attempt such a work was a bold undertaking. Admirable works of this character on some of the sister sciences have already appeared; but in the science of electricity there has been a vacant space, which I have done my best to try to fill up. These lectures have no pretension to form an exhaustive treatise on electricity; but I trust they may be found to be a useful introduction'About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.

This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.