‎Comet‎

‎Webb Robyn; Comet Renee Photographer‎

‎Easy Delicious Diabetic Recipes‎

‎Oxmoor House 2003-01-01. Hardcover. New. Oxmoor House hardcover‎

Bookseller reference : 0848727673-11-14840483 ISBN : 0848727673 9780848727673

‎WOLFF CHRISTIAN. HALLEY'S COMET‎

‎"Astronomiae Cometiae Synopsis" 1705. A Synopsis of the Astronomy of Comets.‎

‎Leipzig Grosse & Gleditsch 1707. 4to. No wrappers. In: "Acta Eruditorum Anno MDCCVII" No V May-issue. Pp. 193-240 pp. a. 1 engraved plate. Wolff's paper: pp. 218-224. � First appearance of Christian Wolff's review-paper of Halley's famous memoir "Astronomiae Cometiae Synopsis" as it was published in the "Philosophical Transactions" in 1705. Wolff records how Halley used Newton's gravitation law to determine the orbits of comets and reprints Halley's 4 tables of comet-observations.<br><br>Edmond Halley in the Philosophical Transactions 1705 investigated the orbits of 24 comets or comet apparations and calculated the orbital elements of their orbits as approximated by parabola. In his paper written in Latin he finds that three of these comets of 1531 1607 and 1682 have very similar orbits and concludes that they probably were different apparitions of the same comet orbiting the Sun on a highly excentric elliptical orbit with a period of about 76 years perturbed by gravitational influences of the giant planets Jupiter and Saturn and predicts its return for 1758-1759. <br>All this was found to be correct the comet returned on schedule the first periodic comet to be identified. Consequently it was named "Comet Halley" also "1P" for it is the first discovered periodic comet. unknown‎

Bookseller reference : 45643

‎Young, Clarence; Moss, Sanford A.; Wendt, H.C.; Reid, Lewis S.; Geisse, John‎

‎Aviation Engineering (Magazine) - The Technical Journal of the Aeronautical Industry, May 1930 - The Comet Engine / Cabin Interiors‎

‎40 pages. Features: Engine Testing Laboratory - Aeronautics Branch installs three new torque stands - article with photos; Geared Centrifugal Superchargers for Aircraft Engines; Cabinet Interiors -article with photos; Copper and its Alloys in Motors and Aircraft; The Comet Engine - 7 cylinder radial air cooled engine with 165 HP; Aeronautics Branch will License Gliders; Los Angeles County promotional ad; New Aircraft - with photo inside the Ford Club plane; News of the Industry - with photos of Edward Macauley, L.W. Greve, and William Ganson Rose; New Developments; Nice Stromberg-Carlson ad on back cover with photo of C.E. Bolduc, radio technician of the Colonial Airlines, inspecting radio at Boston Airport; many more vintage ads. Unmarked with average wear. A sound vintage copy. Book‎

‎Zwack, George M‎

‎The Return of Halley's Comet and Popular Apprehensions. [By George M. Zwack]. Original edition.‎

‎Manila: Bureau of Printing 1910. 22 Seiten. 8° (17,5-22,5 cm). Orig.-Broschur. [Softcover / Paperback].‎

‎"When, after about seventy-six years, Halley's comet will again appear to the eye of man, neither the writer of these lines, nor the vast majority of those for whom they are written, will gaze upon its weird but harmless beauty - for us the end of the visible world will have come." - Cover and title page loosened. Previous owner's name on front cover. Pages browned. - Fair copy.‎

Bookseller reference : 3111353