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Home » Books » Science » Physics

Astronomical and Physical Researches

Made at Mr. Wilson's Observatory, Daramona, Westmeath (Classic Reprint)

By Unknown Author

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Format: Paperback, 186 pages
Published In: United States, 27 September 2015
Excerpt from Astronomical and Physical Researches: Made at Mr. Wilson's Observatory, Daramona, Westmeath In 1871 a small observatory was built in the garden of Daramona, and provided with a 12-inch equatorial reflecting telescope, by Sir Howard Grubb. There was also attached a small room which could be used for photography; it contained a small transit instrument which I made in the workshop, and a sidereal clock. Except a few photographs of the moon, taken with wet plates, and some experiments on solar radiation with thermo piles, little was done with this instrument. In 1881 I decided to build a new and large observatory, which would be attached to the house. A 24-inch silver-on-glass mirror, of 10 feet 6 inches focus, was ordered from Sir Howard Grubb, and it was erected on the old mounting. This was not found satisfactory, as the mounting was not stiff or heavy enough to carry the extra weight. In 1892 I decided to have the 24-inch mirror remounted by Sir Howard Grubb, and provided with his best form of driving clock and electrical control. The new mounting has given the greatest satisfaction. The position of the new observatory is, by the Ordnance Survey Map - Latitude 53 41' 12' N.Longitude 0 29 586 W. In 1889 a physical laboratory was built adjoining the observatory, and a photographic dark room for the development of the astronomical plates. Adjoining this room is also the workshop, which contains a 6-inch Whitworth screw-cutting lathe, a shaping machine, and a drilling machine. These tools are driven by a 11/2 N. H. P. Crossley Gas Engine. 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."
EAN: 9781331886105
ISBN: 1331886104
Publisher: Forgotten Books
Dimensions: 22.86 x 15.24 x 1.02 centimetres (0.25 kg)
Age Range: 15+ years
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