This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
HO"i TO READ A ",TORKSHOP DRAWING WHU-JE no one looking at the figure on the left in Fig. 1 has any difficulty in recogniging it as the picture of a pulley, not everybody looking at the other two figllres would recognise t.hat they represent the same thing. It is a fact, however, and it is how a pulley would appear in a workshop drawing. But why should two figlues be drawn when one, apparently, would not only suffice, but besides would be more understandable? As a lnatter of fact it is en.sier, and therefore takes less time to draw the two figures to the right than the one to the left; and what is luuch 1110re ilnportant, it is only by --dravving the pulley as shown. in the two figures that its true shape and size can be ascertained. 'Vho could ten, by eXaInining the left-hand figure, that the pulley ig circular, except he knew it beforehand? It n1ight be narrower than it is high. rrrue, circles when viewed sideway appear oval, and' so it might be guessed that t
About the Publisher
Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.
Forgotten Books' Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the difficult to read text. Read books online for free at www.forgottenbooks.org
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.
Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.
Vendeur : Majestic Books, Hounslow, Royaume-Uni
Etat : New. Print on Demand. N° de réf. du vendeur 4934170
Quantité disponible : 4 disponible(s)
Vendeur : Books Puddle, New York, NY, Etats-Unis
Etat : New. Print on Demand. N° de réf. du vendeur 263995077
Quantité disponible : 4 disponible(s)
Vendeur : Biblios, Frankfurt am main, HESSE, Allemagne
Etat : New. PRINT ON DEMAND. N° de réf. du vendeur 183995087
Quantité disponible : 4 disponible(s)