The Astrophysical Journal, 1901, Vol. 14 (Classic Reprint) PDF Download

Author: American Astronomical Society
Publisher: Forgotten Books
ISBN: 9780266157298
Category : Science
Languages : en
Pages : 444

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Book Description
Excerpt from The Astrophysical Journal, 1901, Vol. 14 Let.us consider two arcs which are alike except that a larger current runs through the first than through the second. Since the secondary causes of radiation go hand in hand with the electrical cause, we may expect the first arc to have a spectrum which is uniformly brighter from one end to the other than that of the second arc. With the exception of a slight variation, probably due to conduction losses, this is just what is always observed, and confirms the secondary character of the Chemical and thermal causes of radiation. If these causes were not dependent upon the electrical causes, we might possibly get an arc which would give only a flame spectrum, or an arc which would give only a Spark spectrum. Let us now suppose that we run the same current through both the similar arcs, and suppose that in some way we reduce the chemical action going on in the second arc. What differ ence may we expect to observe in them? 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.