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Sinan (crater)
Sinan is an impact crater on the planet Mercury, 134 kilometers in diameter. It is located northeast of the crater Yeats and southeast of the crater Li Po. It has one craterlet on the south-southwestern side of the crater floor, and it has a symmetrical pit slightly west of the center. Together with a smaller unnamed crater on its southern border, the crater Sinan forms a shape similar to that of the spade found in card games. The crater is named after Mimar Sinan, a 16th-century Turkish architect. The name was adopted by the International Astronomical Union The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreac ... in 1976. References Impact craters on Mercury {{Mercury-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MESSENGER
''MESSENGER'' was a NASA robotic space probe that orbited the planet Mercury between 2011 and 2015, studying Mercury's chemical composition, geology, and magnetic field. The name is a backronym for "Mercury Surface, Space Environment, Geochemistry, and Ranging", and a reference to the messenger god Mercury from Roman mythology. ''MESSENGER'' was launched aboard a Delta II rocket in August 2004. Its path involved a complex series of flybys – the spacecraft flew by Earth once, Venus twice, and Mercury itself three times, allowing it to decelerate relative to Mercury using minimal fuel. During its first flyby of Mercury in January 2008, ''MESSENGER'' became the second mission, after Mariner 10 in 1975, to reach Mercury. ''MESSENGER'' entered orbit around Mercury on March 18, 2011, becoming the first spacecraft to do so. It successfully completed its primary mission in 2012. Following two mission extensions, the spacecraft used the last of its maneuvering propellant to deo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mimar Sinan
Mimar Sinan ( ota, معمار سينان, translit=Mi'mâr Sinân, , ) ( 1488–1490 – 17 July 1588) also known as Koca Mi'mâr Sinân Âğâ, ("Sinan Agha (title), Agha the Grand Architect" or "Grand Sinan") was the chief Ottoman Empire, Ottoman architect ( tr, links=no, mimar) and civil engineer for sultans Suleiman the Magnificent, Selim II and Murad III. He was responsible for the construction of more than 300 major structures and other more modest projects, such as schools. His apprentices would later design the Sultan Ahmed Mosque in Istanbul and Stari Most in Mostar. The son of a stonemason, he received a technical education and became a military engineer. He rose rapidly through the ranks to become first an officer and finally a Janissary commander, with the honorific title of Sinan.Goodwin (2001), p. 87 He refined his architectural and engineering skills while on campaign with the Janissaries, becoming expert at constructing fortifications of all kinds, as well ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mariner 10 Image 0027241
A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship. The profession of the sailor is old, and the term ''sailor'' has its etymological roots in a time when sailing ships were the main mode of transport at sea, but it now refers to the personnel of all watercraft regardless of the mode of transport, and encompasses people who operate ships professionally, be it for a military navy or civilian merchant navy, as a sport or recreationally. In a navy, there may be further distinctions: ''sailor'' may refer to any member of the navy even if they are based on land; while Seaman (rank), ''seaman'' may refer to a specific enlisted rank. Professional mariners Seafarers hold a variety of professions and ranks, each of which carries unique responsibilities which are integral to the successful operation of an ocean-going vesse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain. Lunar impact craters range from microscopic craters on lunar rocks returned by the Apollo Program and small, simple, bowl-shaped depressions in the lunar regolith to large, complex, multi-ringed impact basins. Meteor Crater is a well-known example of a small impact crater on Earth. Impact craters are the dominant geographic features on many solid Solar System objects including the Moon, Mercury, Callisto, Ganymede and most small moons and asteroids. On other planets and moons that experience more active surface geological processes, such as Earth, Venus, Europa, Io and Titan, visible impact craters are less common because they become eroded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury (planet)
Mercury is the smallest planet in the Solar System and the closest to the Sun. Its orbit around the Sun takes 87.97 Earth days, the shortest of all the Sun's planets. It is named after the Roman god ' ( Mercury), god of commerce, messenger of the gods, and mediator between gods and mortals, corresponding to the Greek god Hermes (). Like Venus, Mercury orbits the Sun within Earth's orbit as an inferior planet, and its apparent distance from the Sun as viewed from Earth never exceeds 28°. This proximity to the Sun means the planet can only be seen near the western horizon after sunset or the eastern horizon before sunrise, usually in twilight. At this time, it may appear as a bright star-like object, but is more difficult to observe than Venus. From Earth, the planet telescopically displays the complete range of phases, similar to Venus and the Moon, which recurs over its synodic period of approximately 116 days. The synodic proximity of Mercury to Earth makes Mercury most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yeats (crater)
Yeats is an impact crater on the planet Mercury. The crater is named after William Butler Yeats, an Irish poet and dramatist. The name was adopted by the International Astronomical Union in 1976.''NASA World Wind'' 1.4. NASA Ames Research Center, 2007. The rim of Yeats is circular and intact, except where an indentation is made by a crater on the north side. It is bordered by a smaller, unnamed crater to the northwest. There is a scarp cutting across the crater which trends northeast. The central peak is complex, and there are hollows on the east and west sides of the peak. Yeats is located south of the crater Li Po and southwest of the crater Sinan Sinan (Arabic: سنان ''sinān'') is a name found in Arabic and Pre-Islamic Arabic inscriptions, Early Arabic, meaning ''spearhead''. The name may also be related to the Ancient Greek name Sinon. It was used as a male given name. Etymology Th .... File:Yeats crater EN1068705798M.jpg, Oblique view at low sun angle File:Ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Li Po (crater)
Li Po is a crater on Mercury. It has a diameter of 120 kilometers. Its name was adopted by the International Astronomical Union (IAU) in 1976. Li Po is named for the Chinese poet Li Bai Li Bai (, 701–762), also pronounced as Li Bo, courtesy name Taibai (), was a Chinese poet, acclaimed from his own time to the present as a brilliant and romantic figure who took traditional poetic forms to new heights. He and his friend Du F ..., who lived from 701 to 762. References Impact craters on Mercury Li Bai {{Mercury-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spades (suit)
Spades form one of the four suits of playing cards in the standard French deck. It is the same shape as the leaf symbol in German-suited cards but looks like a black heart turned upside down with a stalk at its base. It symbolises the pike or halberd, two medieval weapons. In French the suit of Spades is known as the ''Pique'' and in German as the ''Pik''. It corresponds to the suit of Leaves (''Laub'', ''Grün'', ''Schippen'' or, in Bavaria, ''Gras'') in the German suited playing cards. In Switzerland, the suit is known as ''Schuufle'' ("shovel") and in many German regions, e.g. the Rhineland as ''Schüppe/Schippe'' ("shovel"). In Bridge, Spades rank as the highest suit. In Skat and similar games, it is the second-highest suit. Name The French name for this suit, '' pique'' ("pike"), meant, in the 14th century, a weapon formed by an iron spike placed at the end of a pike. For playing cards, the term may have been coined by analogy with the Latin symbol from which it is d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turkish People
The Turkish people, or simply the Turks ( tr, Türkler), are the world's largest Turkic ethnic group; they speak various dialects of the Turkish language and form a majority in Turkey and Northern Cyprus. In addition, centuries-old ethnic Turkish communities still live across other former territories of the Ottoman Empire. Article 66 of the Turkish Constitution defines a "Turk" as: "Anyone who is bound to the Turkish state through the bond of citizenship." While the legal use of the term "Turkish" as it pertains to a citizen of Turkey is different from the term's ethnic definition, the majority of the Turkish population (an estimated 70 to 75 percent) are of Turkish ethnicity. The vast majority of Turks are Muslims and follow the Sunni and Alevi faith. The ethnic Turks can therefore be distinguished by a number of cultural and regional variants, but do not function as separate ethnic groups. In particular, the culture of the Anatolian Turks in Asia Minor has underlied and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded in 1919 and is based in Paris, France. The IAU is composed of individual members, who include both professional astronomers and junior scientists, and national members, such as professional associations, national societies, or academic institutions. Individual members are organised into divisions, committees, and working groups centered on particular subdisciplines, subjects, or initiatives. As of 2018, the Union had over 13,700 individual members, spanning 90 countries, and 82 national members. Among the key activities of the IAU is serving as a forum for scientific conferences. It sponsors nine annual symposia and holds a triannual General Assembly that sets policy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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