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On the Difference of Longitude, Vol. 24 (Classic Reprint): Between the Observatories of Brussels and Greeenwich, as Determined by Galvanic Signals: ... by Galvanic Signals (Classic Reprint) - Tapa blanda
Sinopsis
A historic exploration of how scientists measured the difference in longitude between Brussels and Greenwich using galvanic signals.
This work presents the methods, calculations, and careful testing behind a landmark 19th‑century experiment. It outlines how signals, clocks, and instrument checks were used to determine longitude, assess errors, and produce reliable results. The text emphasizes transparency in procedure, offering readers a clear view of the scientific process from data collection to final conclusions.
- Describes galvanic signaling and its role in time and longitude measurements
- Shows how instrumental and clock errors were identified and corrected
- Explains how results are averaged across days and methods to reach a final value
- Highlights the importance of observer consistency and methodological detail for accuracy
Ideal for readers of the history of science, astronomy, and navigation who value a precise, method‑driven account of early longitude work.
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Reseña del editor
Excerpt from On the Difference of Longitude, Vol. 24: Between the Observatories of Brussels and Greeenwich, as Determined by Galvanic Signals
I. On the Diference of Longitude between the Observatories of Brussels and Greenwich, as determined by Galvanic Signals. By G. B. Airy, Esq. Astronomer Royal.
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 On the Difference of Longitude, Vol. 24: Between the Observatories of Brussels and Greeenwich, as Determined by Galvanic Signals
The increasing importance of galvanic communication in the operations of observing astronomy, and the completion of the line of submarine telegraph from the South Foreland to Sangatte, induced me, in the winter of 1851, to solicit the sanction of the Lords Commissioners of the Admiralty for the establishment of a galvanic system at the Royal Observatory of Greenwich, and of wires connecting it with the principal telegraph-offices in London. Their Lordships were pleased immediately to grant the necessary authority; and the Directors and Officers of the South Eastern Railway Company, and of the Electric Telegraph Company, gave every assistance in their power. The wires were, in consequence, laid in the summer of 1852. Although (in consequence of a change in the relations of the telegraph companies) these wires were not used, as was at first contemplated, for communication with the Continent; yet their establishment was of great importance, as giving me communication with all parts of Britain, and as enabling me to make.the proper arrangements for satisfactory use of galvanic communication by any system of wires.
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.
"Sobre este título" puede pertenecer a otra edición de este libro.
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On the Difference of Longitude, Vol. 24 (Classic Reprint)
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Paperback. Condición: New. Print on Demand. This book comprehensively details a longitude determination project using galvanic signals between the observatories of Brussels and Greenwich. The project involved collaboration between astronomers in both locations, with signals sent via telegraph wires, marking a significant advancement in the use of technology for astronomical observations. The author provides extensive data from the observations, including instrumental errors, clock corrections, and signal observation times, allowing readers to delve into the intricacies of the methodology. The project's primary goal was to establish the difference in longitude between the two observatories accurately, which was achieved through multiple nights of signal exchange and careful analysis of the data. Beyond its historical significance, the book offers valuable insights into the challenges and techniques of longitude determination in the mid-19th century. It showcases the meticulous nature of astronomical observations and the importance of international collaboration in scientific endeavors. The detailed account of the project provides a valuable resource for astronomers, historians of science, and anyone interested in the evolution of astronomical techniques. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781332272914_0
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On the Difference of Longitude, Vol 24 Between the Observatories of Brussels and Greeenwich, as Determined by Galvanic Signals Classic Reprint
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On the Difference of Longitude, Vol. 24: Between the Observatories of Brussels and Greeenwich, as Determined by Galvanic Signals (Classic Reprint)
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On the Difference of Longitude, Vol. 24: Between the Observatories of Brussels and Greeenwich, as Determined by Galvanic Signals (Classic Reprint)
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Paperback. Condición: Brand New. 38 pages. 8.94x5.94x0.24 inches. This item is printed on demand. Nº de ref. del artículo: zk1332272916
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On the Difference of Longitude, Vol. 24 : Between the Observatories of Brussels and Greeenwich, as Determined by Galvanic Signals (Classic Reprint)
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ISBN 13: 9781332272914
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