Inhaltsangabe
Excerpt from Text-Book on Solid Jr. Or Descriptive Geometry, Vol. 1 of 2
Projection. The problems of Descriptive Geometry are best solved by means of the method of projections which we shall now consider.
When an Object is seen by the eye of an individual, rays of light come from all the visible points Of that Object, and converge towards a point within the eye. Now suppose that a flat piece of glass is placed between the Object and the eye of the spectator, and that each ray of light, in passing through the glass from the object to the eye leaves a mark on its surface of the same colour and tint as the part of the object from which the ray came, a picture would be produced on the surface of the glass; and if the Object were now removed.
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.
Reseña del editor
Excerpt from Text-Book on Solid Jr. or Descriptive Geometry, Vol. 1 of 2
The Author, in writing this text-book, has endeavoured to meet the wants of both, elementary and advanced students, and he believes that it will be found to contain all the descriptive geometry which is usually required by engineering and architectural draughtsmen. But while making the book comprehensive, and illustrating it fully, it has not been made of an inconvenient size for use in large classes.
The treatment of the subject in this work is slightly different from that in any existing books. The problems are stated in a more comprehensive way, and are made to include more cases than is usual with other writers. After the statement of the problem follows the general solution, which is usually given without reference to any particular example Next comes the application of the problem to one or more examples. In many cases the student may not fully understand the general solution of a problem until he has worked out the example which illustrates it. The advantage of this mode of treatment is, that it is more systematic, and enables the student to get a more intelligent and comprehensive grasp of the subject. After working the examples and mastering the general solution of a problem, the student is better able to cope with any fresh examples which may come before him, than if he had learned the subject from examples only.
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.
„Über diesen Titel“ kann sich auf eine andere Ausgabe dieses Titels beziehen.
