Author: W. G. McMillan
Publisher: Forgotten Books
ISBN: 9780267915385
Category : Technology & Engineering
Languages : en
Pages : 736
Book Description
Excerpt from Journal of the Institution of Electrical Engineers, Late the Society of Telegraph-Engineers and Electricians, Vol. 32: Including Original Communications on Telegraphy and Electrical Science; May, 1903 Mr. M. Solomon: I should like to add a few remarks to what has yeti-0mm already been said on the Nernst lamp, especially with reference to Professor Ayrton's comments on the candle-power curves shown by Mr. Drake. Of course one does not always get such good results as these, especially so good as those in the curve in Fig. A, which repre sents the mean result of tests on three lamps. That curve does drop a certain amount, and the curve in Fig. B drops rather more, but perhaps the average curve obtained with the commercial lamp of to-day drops more than either. Still I would point out one fact with reference to judging the performance of the lamps by those which one sees burning in shops, namely that in the first part of the curve there is a very marked drop in candle-power from about 130 to 110. My experience is that there is always a drop corresponding to that, though not perhaps always so great, and sometimes a little greater. The result is that after the first 50 hours the light from a Nernst lamp seems to change a good deal in colour on account of this first drop. The light is a very white one at first and remains white during the whole life, but one notices a considerable difference in shade if two lamps, one new and one 50 hours old, are observed side by side. But after that drop the candle-power remains fairly steady, as shown by the curve, which is quite a typical one. When the curve drops Off sharply towards the end it is a sign that the lamp is about to fail. 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.
Journal of the Institution of Electrical Engineers, Late the Society of Telegraph-Engineers and Electricians, Vol. 32
Author: W. G. McMillan
Publisher: Forgotten Books
ISBN: 9780267915385
Category : Technology & Engineering
Languages : en
Pages : 736
Book Description
Excerpt from Journal of the Institution of Electrical Engineers, Late the Society of Telegraph-Engineers and Electricians, Vol. 32: Including Original Communications on Telegraphy and Electrical Science; May, 1903 Mr. M. Solomon: I should like to add a few remarks to what has yeti-0mm already been said on the Nernst lamp, especially with reference to Professor Ayrton's comments on the candle-power curves shown by Mr. Drake. Of course one does not always get such good results as these, especially so good as those in the curve in Fig. A, which repre sents the mean result of tests on three lamps. That curve does drop a certain amount, and the curve in Fig. B drops rather more, but perhaps the average curve obtained with the commercial lamp of to-day drops more than either. Still I would point out one fact with reference to judging the performance of the lamps by those which one sees burning in shops, namely that in the first part of the curve there is a very marked drop in candle-power from about 130 to 110. My experience is that there is always a drop corresponding to that, though not perhaps always so great, and sometimes a little greater. The result is that after the first 50 hours the light from a Nernst lamp seems to change a good deal in colour on account of this first drop. The light is a very white one at first and remains white during the whole life, but one notices a considerable difference in shade if two lamps, one new and one 50 hours old, are observed side by side. But after that drop the candle-power remains fairly steady, as shown by the curve, which is quite a typical one. When the curve drops Off sharply towards the end it is a sign that the lamp is about to fail. 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.
Publisher: Forgotten Books
ISBN: 9780267915385
Category : Technology & Engineering
Languages : en
Pages : 736
Book Description
Excerpt from Journal of the Institution of Electrical Engineers, Late the Society of Telegraph-Engineers and Electricians, Vol. 32: Including Original Communications on Telegraphy and Electrical Science; May, 1903 Mr. M. Solomon: I should like to add a few remarks to what has yeti-0mm already been said on the Nernst lamp, especially with reference to Professor Ayrton's comments on the candle-power curves shown by Mr. Drake. Of course one does not always get such good results as these, especially so good as those in the curve in Fig. A, which repre sents the mean result of tests on three lamps. That curve does drop a certain amount, and the curve in Fig. B drops rather more, but perhaps the average curve obtained with the commercial lamp of to-day drops more than either. Still I would point out one fact with reference to judging the performance of the lamps by those which one sees burning in shops, namely that in the first part of the curve there is a very marked drop in candle-power from about 130 to 110. My experience is that there is always a drop corresponding to that, though not perhaps always so great, and sometimes a little greater. The result is that after the first 50 hours the light from a Nernst lamp seems to change a good deal in colour on account of this first drop. The light is a very white one at first and remains white during the whole life, but one notices a considerable difference in shade if two lamps, one new and one 50 hours old, are observed side by side. But after that drop the candle-power remains fairly steady, as shown by the curve, which is quite a typical one. When the curve drops Off sharply towards the end it is a sign that the lamp is about to fail. 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.
Journal of the Society of Telegraph Engineers and of Electricians
Author:
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 1264
Book Description
Includes the Society's list of officers, members, and associates.
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 1264
Book Description
Includes the Society's list of officers, members, and associates.
Catalogue
Author: Bernard Quaritch (Firm)
Publisher:
ISBN:
Category : Antiquarian booksellers
Languages : en
Pages : 1028
Book Description
Publisher:
ISBN:
Category : Antiquarian booksellers
Languages : en
Pages : 1028
Book Description
Journal
Author:
Publisher:
ISBN:
Category : Electricity
Languages : en
Pages : 774
Book Description
Includes annual report of its council (1941-48, in pt. 1).
Publisher:
ISBN:
Category : Electricity
Languages : en
Pages : 774
Book Description
Includes annual report of its council (1941-48, in pt. 1).
Journal of the Society of Telegraph Engineers and of Electricians
Author: Society of Telegraph Engineers and Electricians
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 622
Book Description
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 622
Book Description
Supplement to the Catalogue of Books in the Library of the University of Sydney
Author:
Publisher:
ISBN:
Category : Bibliography
Languages : en
Pages : 168
Book Description
Publisher:
ISBN:
Category : Bibliography
Languages : en
Pages : 168
Book Description
Catalogue of the Wheeler Gift of Books, Pamphlets and Periodicals in the Library of the American Institute of Electrical Engineers
Author: American Institute of Electrical Engineers. Library
Publisher: Oak Knoll Press
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 492
Book Description
Publisher: Oak Knoll Press
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 492
Book Description
Journal of the Society of Telegraph Engineers
Author: Society of Telegraph Engineers
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 492
Book Description
Includes the Society's list of officers, members, and associates.
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 492
Book Description
Includes the Society's list of officers, members, and associates.
Journal of the Society of Telegraph Engineers and of Electricians
Author:
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 654
Book Description
Includes the Society's list of officers, members, and associates.
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 654
Book Description
Includes the Society's list of officers, members, and associates.
History of Technology
Author: Graham Hollister-Short
Publisher: Bloomsbury Publishing
ISBN: 1350018503
Category : Technology & Engineering
Languages : en
Pages : 256
Book Description
The technical problems confronting different societies and periods, and the measures taken to solve them form the concern of this annual collection of essays. Volumes contain technical articles ranging widely in subject, time and region, as well as general papers on the history of technology. In addition to dealing with the history of technical discovery and change, History of Technology also explores the relations of technology to other aspects of life -- social, cultural and economic -- and shows how technological development has shaped, and been shaped by, the society in which it occurred.
Publisher: Bloomsbury Publishing
ISBN: 1350018503
Category : Technology & Engineering
Languages : en
Pages : 256
Book Description
The technical problems confronting different societies and periods, and the measures taken to solve them form the concern of this annual collection of essays. Volumes contain technical articles ranging widely in subject, time and region, as well as general papers on the history of technology. In addition to dealing with the history of technical discovery and change, History of Technology also explores the relations of technology to other aspects of life -- social, cultural and economic -- and shows how technological development has shaped, and been shaped by, the society in which it occurred.