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Autor(en): 
  • Warner and Swasey Company
  • By Starlight and Moonlight with the Warner Swasey Prism Terrestrial Telescope: Some Easy Astronomical Observations (Classic Reprint) 
     

    (Buch)
    Dieser Artikel gilt, aufgrund seiner Grösse, beim Versand als 2 Artikel!


    Übersicht
     
    Lieferstatus:   i.d.R. innert 14-24 Tagen versandfertig
    Genre:  Naturwissensch., Medizin, Technik 
    ISBN:  9781330306093 
    EAN-Code: 
    9781330306093 
    Verlag:  Lulu Pr 
    Einband:  Kartoniert  
    Sprache:  English  
    Dimensionen:  H 232 mm / B 156 mm / D 8 mm 
    Gewicht:  94 gr 
    Seiten:  50 
    Bewertung: Titel bewerten / Meinung schreiben
    Inhalt:
    Excerpt from By Starlight and Moonlight With the Warner Swasey Prism Terrestrial Telescope: Some Easy Astronomical Observations

    The objective is 2 inches in diameter, clear aperture. Two eye-pieces are provided, magnifying respectively 25 and 50 diam eters. The telescope tube and the alt-azimuth mounting are made of aluminum. The folding tripod is of carefully selected ash. All are contained in a neat leather-covered carrying case; total weight only twelve pounds. Weight of telescope with its tripod and mounting, apart from case, but six and a half pounds.

    The high quality of its optical equipment, and the simplicity and adequacy of its mechanical provisions, make it superior to any similar telescope upon the market for the camper, the traveler, the motor-tourist, the surveyor, or the marksman upon the ri¿e-range. It is especially adapted for porch, seaside and general use.

    While thus designed strictly as a terrestrial telescope, its purchasers have also found it of much interest and value in the field of amateur astronomy. It is not presented as - in the tech nical sense - an astronomical telescope; and yet its quality is so superior that its efficiency is actually greater than that of many larger astronomical telescopes heretofore offered to the public. The ease with which it can be moved from place to place in the observation of moon and stars, its sharp definition and breadth of field, combined with the precision and steadiness with which the instrument may be pointed and controlled, have brought many expressions of satisfaction from those who having first purchased it as a terrestrial telescope have subsequently tested it in their observations of celestial objects. To respond to the interest and the demand thus indicated, and to illustrate, for beginners, some of the simple astronomical uses of the Warner Swasey Prism Terrestrial, this little booklet has been prepared.

    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.

      



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