Electric Trains (Classic Reprint)
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| Versand: | 0.00 EUR Versandkostenfrei innerhalb von Deutschland |
| Partner: | buecher.de |
| Hersteller: | Forgotten Books (Hobart, Henry Metcalf) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from Electric Trains It is indicative of the rapid progress of the application of electricity to the propulsion of railway trains, that it is no longer possible, within the bounds of a single volume, to cover the entire subject with any approach to adequacy. Indeed, in limiting my programme to Electric Trains, I have still found the field too wide to be dealt with effectively, and I have consequently confined the treatment to Electric Trains for City and Suburban Service, thus purposely excluding the large and important subject of Electric Locomotives. Even with this restricted programme I have considered that it is impossible, without incurring the risk of diverting the reader´s attention from the logical development of my subject, to introduce much material descriptive of the apparatus comprised in the electrical equipment. I have endeavoured to make amends for this by including references to publications in which useful descriptive matter may be found. There is a dearth of published matter where a reader can find set forth coherent and simple descriptions of thoroughly practical methods of calculating the required energy for operating electric railways. I do not know of any work other than the present book in which the approximate estimation of the cost of the rolling stock of electrically-propelled motor-coaches and trains, proportioned for a given service, is worked out rationally and with the certainty of arriving at reliable results for the comparative purposes of preliminary estimates. Most of the interesting and valuable essays in these directions are too ponderous, and their authors have been hampered by the involved and cumbersome methods which they have employed. Although portions of these essays are of great value to those interested in electric railways, they are usually seriously overweighted with digressions of none too relevant a nature, and the methods set forth are needlessly complex. 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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