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Image from page 108 of “Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an
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Title: Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress ..
Year: 1899 (1890s)
Authors: Boyd, James Penny, 1836-1910
Subjects: Progress Inventions
Publisher: Philadelphia, Pa., A. J. Holman & Co
Contributing Library: The Library of Congress
Digitizing Sponsor: Sloan Foundation
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gton is now nightly engaged inmapping the relative positions of Rheaand Iapetus, the fifth and eighth satel-lites of Saturn, with the intention ofsecuring a new and final determinationof the mass of that planet, which hasbeen heretofore reckoned as one 3492dof the sun. The twelve-inch telescopeis chiefly employed in studying cometsand asteroids, and on Thursday even-ings is at the service of the public. Inthe year 1S98, 3778 observations weremade with the nine-inch transit circle, for which two men were detailed,with the services of five computers. A transit circle and an altazimuth instrument, each turned out of solidsteel, have recently been added to the equipment, and are of a workmanshipthat compares favorably with anything ever manufactured in Europe. It isasserted that the latter instrument will give more accurate measurements oideclination than a transit circle, which is an innovation on long-cherishedideas. Professor Simon Newcomb, of the United States Navy, is about to issue7
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PROFESSOR WTT/LTAM HAltKNESSAstronomical Director U. S. Niivsil Observatory, Washington, D. C. 98 TRIUMPHS AND WONDERS OF THE XIXth CENTURY new tables of Mars, Uranus, and Neptune, and a Catalogue of FundamentalStars for the Epoch 1900. During the year 1898 three thousand copies ofthe American Nautical Almanac were published. This is but an illustrationof the scientific labor accomplished at this busy hive of industry. Duringthe year this observatory issued to the navy 230 chronometers, 200 sextantsand octants, and 1400 other nautical instruments of value. XI. STAR MAPS AND CATALOGUES. In the year 128 b. c. Hipparchus put out a catalogue of 1025 starsobserved at Rhodes. Twenty such works succeeded this up to the year1801, when Lalande, of Paris, brought out a list of 47,390 stars. It will beremembered that few stars have names, except those known to the Arabiansof old, but are designated by their positions in the heavens. It is customaryto refer to them by their declinations and right
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PictionID:56246506 – Catalog:14_039097 – Title:GD/Astronautics Details: Legital Computer with J. McLeod and Dr. Defares Date: 07/19/1961 – Filename:14_039097.JPG – – Image from the Convair/General Dynamics Astronautics Atlas Negative Collection. The processing, cataloging and digitization of these images has been made possible by a generous National Historical Publications and Records grant from the National Archives and Records Administration—Please Tag these images so that the information can be permanently stored with the digital file.—Repository: San Diego Air and Space Museum
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