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Mecca Time
Mecca Time was a proposed time standard that uses the line of longitude that goes through Mecca, Saudi Arabia (39°49′34″ E of the Greenwich Meridian) as its Prime Meridian. A clock based on this meridian would be at approximately UTC+02:39:18.3. The proposal was made by Sheikh Yusuf al-Qaradawi and other Muslim clerics meeting in Doha, Qatar on April 21, 2008 for a conference titled "Mecca: the Center of the Earth, Theory and Practice". Qatar conference The "Mecca: the Center of the Earth, Theory and Practice" conference was organized and attended by Muslim theologians and other religious officials from across the world. The Qatar meeting was the culmination of efforts to seek answers for scientific questions from the Qur'an and other Islamic scriptures – a trend called "Ijaz al-Qur'an" (''Miraculous nature of the Qur'an''). The conference promoted the belief that Islamic scripture also revealed scientific details, with Islamic scholars seeking to unearth and publicize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time Zone
A time zone is an area which observes a uniform standard time for legal, Commerce, commercial and social purposes. Time zones tend to follow the boundaries between Country, countries and their Administrative division, subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time. Each time zone is defined by a standard offset from Coordinated Universal Time (UTC). The offsets range from UTC−12:00 to UTC+14:00, and are usually a whole number of hours, but a few zones are offset by an additional 30 or 45 minutes, such as in Indian Standard Time, India and Nepal Time, Nepal. Some areas in a time zone may use a different offset for part of the year, typically one hour ahead during spring (season), spring and summer, a practice known as daylight saving time (DST). List of UTC offsets In the table below, the locations that use daylight saving time (DST) are listed in their UTC offset when DST is ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic North
The north magnetic pole, also known as the magnetic north pole, is a point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downward (in other words, if a magnetic compass needle is allowed to rotate in three dimensions, it will point straight down). There is only one location where this occurs, near (but distinct from) the geographic north pole. The Earth's Magnetic North Pole is actually considered the "south pole" in terms of a typical magnet, meaning that the north pole of a magnet would be attracted to the Earth's magnetic north pole. The north magnetic pole moves over time according to magnetic changes and flux lobe elongation in the Earth's outer core. In 2001, it was determined by the Geological Survey of Canada to lie west of Ellesmere Island in northern Canada at . It was situated at in 2005. In 2009, while still situated within the Canadian Arctic at , it was moving toward Russia at between per year. In 2013, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Meridians
A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, or , involve 5 itself. However, 4 is composite because it is a product (2 × 2) in which both numbers are smaller than 4. Primes are central in number theory because of the fundamental theorem of arithmetic: every natural number greater than 1 is either a prime itself or can be factorized as a product of primes that is unique up to their order. The property of being prime is called primality. A simple but slow method of checking the primality of a given number , called trial division, tests whether is a multiple of any integer between 2 and . Faster algorithms include the Miller–Rabin primality test, which is fast but has a small chance of error, and the AKS primality test, which always produce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Named Meridians
Named may refer to something that has been given a name. Named may also refer to: * named (computing), a widely used DNS server * Naming (parliamentary procedure) * The Named (band), an American industrial metal group In literature: * ''The Named'', a fantasy novel by Marianne Curley * The Named, a fictional race of prehistoric big cats, depicted in ''The Books of the Named'' series by Clare Bell See also * Name (other) * Names (other) Names are words or terms used for identification. Names may also refer to: * ''Names'' (EP), by Johnny Foreigner * ''Names'' (journal), an academic journal of onomastics * The Names (band), a Belgian post-punk band * ''The Names'' (novel), b ... * Naming (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Saudi Arabia
The history of Saudi Arabia as a nation state began with the emergence of the House of Saud, Al Saud dynasty in central Arabia in 1727 and the subsequent establishment of the Emirate of Diriyah. Pre-Islamic Arabia, the territory that constitutes modern Saudi Arabia, was the site of several ancient cultures and civilizations; the prehistory of Saudi Arabia shows some of the earliest traces of human activity in the world. The Major religious groups, world's second-largest religion, Islam, emerged in what is now Saudi Arabia. In the early 7th century, the Prophets and messengers in Islam, Islamic prophet Muhammad united the population of Arabia and created a single Islamic religious polity. Following his death in 632, his followers rapidly expanded the territory under Muslim rule beyond Arabia, Early Muslim conquests, conquering huge and unprecedented swathes of territory (from the Iberian Peninsula in the west to modern-day Pakistan in the east) in a matter of decades. Arab dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ottoman Empire
The Ottoman Empire (), also called the Turkish Empire, was an empire, imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Central Europe, between the early 16th and early 18th centuries. The empire emerged from a Anatolian beyliks, ''beylik'', or principality, founded in northwestern Anatolia in by the Turkoman (ethnonym), Turkoman tribal leader Osman I. His successors Ottoman wars in Europe, conquered much of Anatolia and expanded into the Balkans by the mid-14th century, transforming their petty kingdom into a transcontinental empire. The Ottomans ended the Byzantine Empire with the Fall of Constantinople, conquest of Constantinople in 1453 by Mehmed II. With its capital at History of Istanbul#Ottoman Empire, Constantinople (modern-day Istanbul) and control over a significant portion of the Mediterranean Basin, the Ottoman Empire was at the centre of interacti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Meridian Conference
The International Meridian Conference was a conference held in October 1884 in Washington, D.C., in the United States, to determine a prime meridian for international use. The conference was held at the request of President of the United States, U.S. President Chester A. Arthur. The subject to discuss was the choice of "a meridian to be employed as a common zero of longitude and standard of time reckoning throughout the world". It resulted in the recommendation of the Greenwich Meridian as the international standard for zero degrees longitude. Background By the 1870s there was pressure both to establish a prime meridian for worldwide navigation purposes and to unify local times for railway timetables. The first International Geographical Union, International Geographical Congress, held in Antwerp in 1871, passed a motion in favour of the use of the Prime meridian (Greenwich), Greenwich Meridian for (smaller scale) passage Nautical chart, charts, suggesting that it should become ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Declination
Magnetic declination (also called magnetic variation) is the angle between magnetic north and true north at a particular location on the Earth's surface. The angle can change over time due to polar wandering. Magnetic north is the direction that the north end of a magnetized compass needle points, which corresponds to the direction of the Earth's magnetic field lines. True north is the direction along a meridian towards the geographic North Pole. Somewhat more formally, Bowditch defines variation as "the angle between the magnetic and geographic meridians at any place, expressed in degrees and minutes east or west to indicate the direction of magnetic north from true north. The angle between magnetic and grid meridians is called grid magnetic angle, grid variation, or grivation." By convention, declination is positive when magnetic north is east of true north, and negative when it is to the west. '' Isogonic lines'' are lines on the Earth's surface along which the declination ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geomagnetic Field
Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun. The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo. The magnitude of Earth's magnetic field at its surface ranges from . As an approximation, it is represented by a field of a magnetic dipole currently tilted at an angle of about 11° with respect to Earth's rotational axis, as if there were an enormous bar magnet placed at that angle through the center of Earth. The North geomagnetic pole (Ellesmere Island, Nunavut, Canada) actually represents the South pole of Earth's magnetic field, and conversely the South geomagnetic pole correspon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Magnetic Pole
The north magnetic pole, also known as the magnetic north pole, is a point on the surface of Earth's Northern Hemisphere at which the Earth's magnetic field, planet's magnetic field points vertically downward (in other words, if a magnetic compass needle is allowed to rotate in three dimensions, it will point straight down). There is only one location where this occurs, near (but distinct from) the geographic north pole. The Earth's Magnetic North Pole is actually considered the "south pole" in terms of a typical magnet, meaning that the north pole of a magnet would be attracted to the Earth's magnetic north pole. The north magnetic pole moves over time according to magnetic changes and flux lobe Elongation (materials science), elongation in the Earth's outer core. In 2001, it was determined by the Geological Survey of Canada to lie west of Ellesmere Island in northern Canada at . It was situated at in 2005. In 2009, while still situated within the Canadian Arctic at , it was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabia Standard Time
UTC+03:00 is an identifier for a time offset from UTC of +03:00. In areas using this time offset, the time is three hours ahead of the Coordinated Universal Time (UTC). Following the ISO 8601 standard, a time with this offset would be written as, for example, 2019-02-08T23:36:06+03:00. As standard time (year-round) Principal cities: Istanbul, Moscow, Saint Petersburg, Doha, Riyadh, Baghdad, Nairobi, Dire Dawa, Addis Ababa, Manama, Sanaa, Aden, Minsk, Kuwait City, Asmara, Antananarivo, Kampala, Amman, Damascus Africa East Africa *Comoros *Djibouti *Eritrea *Ethiopia *France ** French Southern and Antarctic Lands *** Scattered Islands in the Indian Ocean **** Bassas da India, Europa Island and Juan de Nova Island **Mayotte *Kenya *Madagascar *Somalia *Somaliland *South Africa ** Prince Edward Islands *Tanzania *Uganda Antarctica *Some bases in Antarctica. See also Time in Antarctica. **Japan *** Showa Station Asia Arabia Standard Time Arabia Standard Time, or AST ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abraj Al Bait
The Clock Towers (, formerly known as ), is a State ownership, government-owned complex of seven skyscraper hotels in Mecca, Saudi Arabia. These towers are part of the Abdullah of Saudi Arabia#Domestic affairs, King Abdulaziz Endowment Project that aims to modernize the city in catering to its pilgrims. The central hotel tower, which is the Mecca Clock Royal Tower, is the fourth-tallest building and sixth-List of tallest freestanding structures, tallest freestanding structure in the world. According to Guinness World Records, the Makkah Tower is the tallest clock tower in the world, and the complex of seven building comprise the world's second most expensive building. The clock faces are the List of largest clock faces, largest in the world, and the top four floors of the clock tower house the Clock Tower Museum. The building complex is 300 metres away from the world's largest mosque and Islam's Holiest sites in Islam, most sacred site, the Great Mosque of Mecca. The developer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
