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.
The equipment is now so nearly complete and the plan of investigation so definitely outlined that a brief description of some typical methods and results may be of service to the visitor and to the general reader interested in the progress of astrophysical research. OLD METHODS AND NEW. An observatory, like any other laboratory of research, may concentrate its attention upon either one of two widely different objects: the accumulation of great stores of data in existing departments of knowledge, or the opening up and exploration of new fields of investigation. In both cases extensive series of routine observations are required, but the point of view and the mode of attack are essentially different. In known fields, long since efficiently occupied, standard methods of observation and instruments obtainable from skilled makers are available for use. With the aid of such instruments and methods, perhaps modified and perfected in various details, observations of great precision and importance can be obtained.
(Typographical errors above are due to OCR software and don't occur in the book.)
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 aged text. Read books online for free at www.forgottenbooks.org
Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.
EUR 7,70 expédition depuis Etats-Unis vers France
Destinations, frais et délaisVendeur : Books Puddle, New York, NY, Etats-Unis
Etat : New. N° de réf. du vendeur 264007291
Quantité disponible : 4 disponible(s)
Vendeur : Biblios, Frankfurt am main, HESSE, Allemagne
Etat : New. PRINT ON DEMAND. N° de réf. du vendeur 184007281
Quantité disponible : 4 disponible(s)
Vendeur : Majestic Books, Hounslow, Royaume-Uni
Etat : New. Print on Demand. N° de réf. du vendeur 4889252
Quantité disponible : 4 disponible(s)