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The Indian Standard Time was adopted on 1 January 1906 during the British era with the phasing out of its precursor Madras Time (Railway Time), [2] and after Independence in 1947, the Union government established IST as the official time for the whole country, although Kolkata and Mumbai retained their own local time (known as Calcutta Time and Bombay Time) until 1948 and 1955, respectively. [3]
The Maidenhead Locator System (a.k.a. QTH Locator and IARU Locator) is a geocode system used by amateur radio operators to succinctly describe their geographic coordinates, which replaced the deprecated QRA locator, which was limited to European contacts. [1]
Ptolemy's map of the Mediterranean superimposed on a modern map, with Greenwich as the reference longitude. Ptolemy, in the 2nd century AD, based his mapping system on estimated distances and directions reported by travellers. Until then, all maps had used a rectangular grid with latitude and longitude as straight lines intersecting at right ...
It also analysed other sources of error, including the risk of parallax errors with some instruments; and faulty estimates of latitude and longitude on contemporary charts. In 1599–1600, Edward Wright's World Chart of 1599 was the first map under the Mercator projection drawn by an Englishman for English navigation.
Location of Nigeria Satellite image of Nigeria. Nigeria is a country in West Africa.It shares land borders with the Republic of Benin to the west, Chad and Cameroon to the east, and Niger to the north. [1]
Google Maps' location tracking is regarded by some as a threat to users' privacy, with Dylan Tweney of VentureBeat writing in August 2014 that "Google is probably logging your location, step by step, via Google Maps", and linked users to Google's location history map, which "lets you see the path you've traced for any given day that your ...
The national territory extends 4,397.53 kilometers (2,732 mi) from north to south (5°16'10" N to 33°45'03" S latitude), and 4,320.53 kilometers (2,685 mi) from east to west (34°47'35" W to 73°58'59" W longitude). [1] It spans four time zones, the westernmost of which is equivalent to Eastern Standard Time in the United States. [1]
If the direction of the second place be known, together with its difference either of longitude or of latitude from the first, the thread should be stretched in this direction and, the compasses being moved along it starting from the first place, the line parallel thereto can be imagined; this line, as soon as it reaches a point at the known ...