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ephemeris
ephemeris (pl., ephemerides), table listing the position of one or more celestial bodies for each day of the year. The French publication Connaissance de Temps is the oldest of the national astronomical ephemerides, founded in 1679. The Nautical Almanac and Astronomical Ephemeris (usually... Read more |
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United States Naval Observatory
Naval Observatory USNO one of the oldest scientific agencies in the United States, established in 1830 as the U.S. Navy Depot of Charts and Instruments, responsible for the Navy's chronometers, charts, and other navigational equipment. Over the years its mission expanded to include a full range of... Read more |
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Weston
Weston town (1990 pop. 10,200), Middlesex co., E Mass., W of Boston; settled c.1642, set off from Watertown and inc. 1713. The town is mainly residential. Regis College, the Weston Observatory of Boston College, and many 18th-century buildings are there.... Read more |
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Greenwich
Greenwich , outer borough (1991 pop. 200,800) of Greater London, SE England, on the Thames River. Manufactures include telephone equipment and underwater cable. The system of geographic longitude and time-keeping worked out at the famous Royal Observatory there have become standard in most countries... Read more |
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dispute
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Webster-Ashburton Treaty
Webster-Ashburton Treaty Aug., 1842, agreement concluded by the United States, represented by Secretary of State Daniel Webster, and Great Britain, represented by Alexander Baring, 1st Baron Ashburton. The treaty settled the Northeast Boundary Dispute , which had caused serious conflicts, such as... Read more |
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British Indian Ocean Territory
British Indian Ocean Territory archipelago, c.1,180 mi (1,900 km), NE of Mauritius, in the central Indian Ocean. The islands, which form the Chagos Archipelago and are located on the southern end of a chain of sea mounts that also includes Lakshadweep and the Maldives , were administered by ... Read more |
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Royal Naval Air Service
Royal Naval Air Service. When the Royal Flying Corps was founded in 1912 it had a military and naval wing. The latter soon adopted the name Royal Naval Air Service, which was officially recognized in July 1914. It then possessed 39 aircraft, 52 seaplanes, and 7 airships. Their main responsibility... Read more |
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Ashburton treaty
Ashburton treaty, 1842. After the War of 1812, relations between Britain and the USA remained difficult, with a number of problems including border disputes in Maine. In 1841 when Peel took office, the situation was bad enough to call for naval deployments in case of war. Peel dispatched Lord ... Read more |
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Einstein Observatory
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