Excerpt from The Photochronograph and Its Applications
The following account Of these experiments was given in the Woodstock Letters for October, 1889 (vol. 18, No. 3, page 402, Woodstock College Print, Woodstock, Md.)
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Paperback. Zustand: New. Print on Demand. This book presents an in-depth exploration of the photographic method used for recording transits of stars, a groundbreaking technique invented by the author. The method involved attaching a photographic plate to the eye end of a telescope and exposing it to the star's light as it passed the telescope's field of view. By timing the exposures with a sidereal clock, the author was able to capture precise measurements of the star's transit, a significant advancement in the field of astronomy. The book delves into the technical details of the photographic method, including the development of the photochronograph, a key apparatus that synchronized the photographic exposures with the clock. It also examines the challenges faced in obtaining accurate measurements, such as correcting for periodic and progressive errors in the micrometer screw, and the impact of atmospheric conditions and star characteristics on the quality of the photographic images. The author provides a comprehensive analysis of the results obtained using this method, including a discussion of the probable errors associated with the measurements and a comparison of the accuracy of the photographic method with other traditional techniques. The book concludes by emphasizing the significance of the photographic method in revolutionizing the field of astronomy, enabling astronomers to obtain more precise and reliable measurements of star transits, which has contributed to a deeper understanding of celestial mechanics and the universe. 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. Bestandsnummer des Verkäufers 9781334033155_0
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781334033155
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781334033155
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