Verwandte Artikel zu Spark Photography and Its Application to Some Problems...
Inhaltsangabe
Excerpt from Spark Photography and Its Application to Some Problems in Ballistics
Spark photography in which the illumination is provided by an electric spark of such short duration that a moving object appears stationary has many applications in the investigation of high-speed phenomena. The record obtained is not an image, no lens being used, but is simply the silhouette of objects between the light source and the photographic plate. Reference to previous work along similar lines will be made later in this paper.
Two distinct problems are presented in the photography of moving objects. One of these is the timing of the spark so that the desired epoch of the phenomenon under investigation may be photographed, and the other has to do with the duration of the spark. All of the photographs described in this paper were taken on plates not larger than 8 by 10 inches. A projectile moving at a speed of it./sec. Would be in front of such a plate, and, therefore, in a position to be photographed for only second. If the projectile is to be photo graphed within an inch of a predetermined position, the time of occurrence of the spark must be correlated with the position of the projectile to within second.
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.
Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.
Reseña del editor
Excerpt from Spark Photography and Its Application to Some Problems in Ballistics
Spark photography in which the illumination is provided by an electric spark of such short duration that a moving object appears stationary has many applications in the investigation of high-speed phenomena. The record obtained is not an image, no lens being used, but is simply the silhouette of objects between the light source and the photographic plate. Reference to previous work along similar lines will be made later in this paper.
Two distinct problems are presented in the photography of moving objects. One of these is the timing of the spark so that the desired epoch of the phenomenon under investigation may be photographed, and the other has to do with the duration of the spark. All of the photographs described in this paper were taken on plates not larger than 8 by 10 inches. A projectile moving at a speed of it./sec. Would be in front of such a plate, and, therefore, in a position to be photographed for only second. If the projectile is to be photo graphed within an inch of a predetermined position, the time of occurrence of the spark must be correlated with the position of the projectile to within second.
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.
Neu kaufen
Diesen Artikel anzeigen
EUR 18,87
EUR 0,88 für den Versand von USA nach Deutschland
Versandziele, Kosten & DauerWeitere beliebte Ausgaben desselben Titels
Suchergebnisse für Spark Photography and Its Application to Some Problems...
Beispielbild für diese ISBN
Spark Photography and Its Application to Some Problems in Ballistics (Classic Reprint)
Anbieter: PBShop.store US, Wood Dale, IL, USA
Verkäuferbewertung 5 von 5 Sternen
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Artikel-Nr. LW-9780282359652
Anzahl: 15 verfügbar
Beispielbild für diese ISBN
Spark Photography and Its Application to Some Problems in Ballistics (Classic Reprint)
Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes Königreich
Verkäuferbewertung 5 von 5 Sternen
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Artikel-Nr. LW-9780282359652
Anzahl: 15 verfügbar