The idea of using latitudes and longitudes on a map has existed since the 3rd century B. About a century later, people learned that longitude had a relation to the local time of a place. The system of a latitude and longitude grid helped people navigate by land and by sea. It is possible to keep latitude and longitude straight by using their spelling.
When organizing latitude and longitude alphabetically, latitude comes first, and longitude last. This is the same as horizontal and vertical. First Known Use of longitude 15th century, in the meaning defined at sense 1a. History and Etymology for longitude Middle English, from Latin longitudin-, longitudo , from longus. Learn More About longitude. Time Traveler for longitude The first known use of longitude was in the 15th century See more words from the same century.
Style: MLA. English Language Learners Definition of longitude. Kids Definition of longitude. Get Word of the Day daily email! Test Your Vocabulary. Can you spell these 10 commonly misspelled words? Turnpike: In a Sentence. Titular: In a Sentence. Tachycardia: In a Sentence. Double Jeopardy: In a Sentence.
Terra Firma: In a Sentence. Red herring: In a Sentence. Helter Skelter: In a Sentence. Prev Word Next Word. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. According to him, the Rha is a tributary of an interior sea, formed from the confluence of two great rivers, the sources of which are separated by twenty degrees of longitude , but it is scarcely possible to judge from his statements how far the Sla y s had by that time succeeded in penetrating into the basin of the Volga.
Arago was elected a member of the Board of Longitude immediately afterwards, and contributed to each of its Annuals, for about twenty-two years, important scientific notices on astronomy and meteorology and occasionally on civil engineering, as well as interesting memoirs of members of the Academy.
After great suffering Hsiian Tsang reached Igu, the seat of a Turkish principality, and pursued his way along the southern foot of the T'ian-shan, which he crossed by a glacier pass vividly described in the longitude of Lake Issyk-kul. From Manyanga the frontier was to follow the Congo up to Stanley Pool, the median line of Stanley Pool, and the Congo again "up to a point to be settled above the river Licona-Nkundja," from which point a line was to be drawn to the 17th degree of longitude east of Greenwich, following as closely as possible the water-parting of the Licona-Nkundja basin.
At the date of the issue of the circular the agreements with France and Portugal had partially defined the boundaries of the Free State on the lower river, and the 30th degree of longitude east of Greenwich was recognized as the limit of its extension eastwards. After each name are given the longitude , latitude, "climate," spelling, and then observations generally taken from earlier authors.
Longitude of ascending node The treatise on "Mechanics" in Lardner's Cyclopaedia was partly written by him; and his interest in more purely astronomical questions was evidenced by two communications to the Astronomical Society's Memoirs for - the one on an observation of Saturn's outer ring, the other on a method of determining longitude by means of lunar eclipses.
In the question of finding the longitude at sea, which had been looked upon as an important one for several years, was brought into prominence by a petition presented to the House of Commons by a number of captains of Her Majesty's ships and merchant ships and of London merchants.
He stated that for determining the longitude at sea there had been several projects, true in theory but difficult to execute. The report ran " that it is the opinion of this committee that a reward be settled by parliament upon such person or persons as shall discover a more certain and practicable method of ascertaining the longitude than any yet in practice; and the said reward be proportioned to the degree Hof exactness to which the said method shall reach.
He was chosen a member of the Institute at its formation, and returning to Paris became a member of the Board of Longitude. This angle is called the Longitude , Right Ascension or Azimuth of the body, in the various systems of co-ordinates.
It is our system of defining the position of a point on the earth's surface by its latitude and longitude. But in every case, if at a certain time t, the actual planet has a certain longitude , it is certain that at a very short interval dt before or after t, the fictitious planet will have this same longitude.
The computations are, as a general rule, simpler, and the algebraic expressions less complex, than when the computations of the longitude itself are calculated. They were published by the Board of Longitude , together with his solar tables, in Its amount varies a fraction of a minute for the same date, from year to year and from one longitude to another, on the same day.
Longitude moved east and west from the prime meridian. One of the big problems of the day was being able to determine the longitude at sea. The Astronomical Almanac reports the ecliptic longitude of the object in decimal degrees. West longitude This is the geographic West longitude of the location for which to perform the calculations.
Tuva lies between 89 degrees and degrees east longitude , and 49 and 53 degrees north latitude. Today we crossed the line in west longitude Sunday. A body known as the Board of longitude was set up to administer and judge the longitude prize. For this is where the Earth's prime meridian, the line of zero degrees longitude , originates. The meridian of that place, from which the longitude is reckoned, is called the first meridian. The English reckon the longitude from the meridian of London, and the French now reckon it from the meridian of Paris.
This method of observation was very successfully employed, under Seeliger at Munich, in an extensive series of meridian observations, and, under the auspices of the Geodetic Institute at Potsdam, in telegraphic longitude operations. It was the ambition of Ptolemy to describe and represent accurately the surface of the oekumene, for which purpose he took immense trouble to collect all existing determinations of the latitude of places, all estimates of longitude , and to make every possible rectification in the estimates of distances by land or sea.
It consisted essentially in the adoption of Delauny's final numerical expressions for longitude , latitude and parallax, with a symbolic term attached to each number, the value of which was to be determined by substitution in the equations of motion. The arid nature of the trans-Caspian deserts has proved an insuperable obstacle to those rigorous methods of geodetic survey which distinguish Russian methods in Europe, so that Russian geography in central Asia is dependent on other means than that of direct measurement for the co-ordinate values in latitude and longitude for any given point.
There was also added an advertisement from him and William Whiston concerning a method for discovering the longitude , which it seems they had published about half a year before. The first white settlers found great numbers of buffaloes, deer, elks, geese, ducks, turkeys and partridges, also many bears, panthers, lynx, wolves, foxes, beavers, otters, minks, musk-rats, rabbits, squirrels, raccoons, woodchucks, opossums and A I.
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