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Sarandib Planitia
Sarandib Planitia is a region of relatively un-cratered terrain on Saturn's moon Enceladus. It is located at 4.4° North Latitude, 298.0° West Longitude and is approximately 200 km across. From ''Voyager'' images, Sarandib Planitia is considered part of either the ridged plains unit ( Kargel and Pozio 1996) or smooth plains unit ( Rothery 1999) of Enceladus, thought to be the youngest terrain on Enceladus. In more recent (and higher resolution) ''Cassini'' images, Sarandib is resolved into a region of relatively low ridges, with a band of rifted terrain cutting through the middle from northwest to southeast. In addition, a series of long-wavelength compression ridges are seen in the western portion of Sarandib Planitia, reminiscent of banded terrain on Europa, like Astypalaea Linea. Only ~20 craters larger than 1 kilometer across (the largest only 4.5 kilometers across) have been found in Sarandib, demonstrating the youthful age of the region. Sarandib Planitia is boun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voyager 2
''Voyager 2'' is a space probe launched by NASA on August 20, 1977, to study the outer planets and interstellar space beyond the Sun's heliosphere. As a part of the Voyager program, it was launched 16 days before its twin, ''Voyager 1'', on a trajectory that took longer to reach gas giants Jupiter and Saturn but enabled further encounters with ice giants Uranus and Neptune. ''Voyager 2'' remains the only spacecraft to have visited either of the ice giant planets. ''Voyager 2'' was the fourth of five spacecraft to achieve Solar escape velocity, which allowed it to leave the Solar System. ''Voyager 2'' successfully fulfilled its primary mission of visiting the Jovian system in 1979, the Saturnian system in 1981, Uranian system in 1986, and the Neptunian system in 1989. The spacecraft is now in its extended mission of studying interstellar space. It has been operating for as of ; , it has reached a distance of from Earth. The probe entered interstellar space on November 5, 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilometer
The kilometre ( SI symbol: km; or ), spelt kilometer in American English, is a unit of length in the International System of Units (SI), equal to one thousand metres (kilo- being the SI prefix for ). It is now the measurement unit used for expressing distances between geographical places on land in most of the world; notable exceptions are the United States and the United Kingdom where the statute mile is the unit used. The abbreviations k or K (pronounced ) are commonly used to represent kilometre, but are not recommended by the BIPM. A slang term for the kilometre in the US, UK, and Canadian militaries is ''klick''. Pronunciation There are two common pronunciations for the word. # # The first pronunciation follows a pattern in English whereby metric units are pronounced with the stress on the first syllable (as in kilogram, kilojoule and kilohertz) and the pronunciation of the actual base unit does not change irrespective of the prefix (as in centimetre, millimetre, na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabian Nights
''One Thousand and One Nights'' ( ar, أَلْفُ لَيْلَةٍ وَلَيْلَةٌ, italic=yes, ) is a collection of Middle Eastern folk tales compiled in Arabic during the Islamic Golden Age. It is often known in English as the ''Arabian Nights'', from the first English-language edition (), which rendered the title as ''The Arabian Nights' Entertainment''. The work was collected over many centuries by various authors, translators, and scholars across West, Central and South Asia, and North Africa. Some tales trace their roots back to ancient and medieval Arabic, Egyptian, Sanskrit, Persian, and Mesopotamian literature. Many tales were originally folk stories from the Abbasid and Mamluk eras, while others, especially the frame story, are most probably drawn from the Pahlavi Persian work ( fa, هزار افسان, lit. ''A Thousand Tales''), which in turn relied partly on Indian elements. Common to all the editions of the ''Nights'' is the framing device of the story o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urdu Language
Urdu (;"Urdu" ''Random House Webster's Unabridged Dictionary''. ur, , link=no, ) is an Indo-Aryan languages, Indo-Aryan language spoken chiefly in South Asia. It is the Languages of Pakistan, national language and ''lingua franca'' of Pakistan, where it is also an official language alongside English language, English. In India, Urdu is an Eighth Schedule to the Constitution of India, Eighth Schedule language whose status and cultural heritage is recognized by the Constitution of India; Quote: "The Eighth Schedule recognizes India's national languages as including the major regional languages as well as others, such as Sanskrit and Urdu, which contribute to India's cultural heritage. ... The original list of fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persian Language
Persian (), also known by its endonym Farsi (, ', ), is a Western Iranian language belonging to the Iranian branch of the Indo-Iranian subdivision of the Indo-European languages. Persian is a pluricentric language predominantly spoken and used officially within Iran, Afghanistan, and Tajikistan in three mutually intelligible standard varieties, namely Iranian Persian (officially known as ''Persian''), Dari Persian (officially known as ''Dari'' since 1964) and Tajiki Persian (officially known as ''Tajik'' since 1999).Siddikzoda, S. "Tajik Language: Farsi or not Farsi?" in ''Media Insight Central Asia #27'', August 2002. It is also spoken natively in the Tajik variety by a significant population within Uzbekistan, as well as within other regions with a Persianate history in the cultural sphere of Greater Iran. It is written officially within Iran and Afghanistan in the Persian alphabet, a derivation of the Arabic script, and within Tajikistan in the Tajik alphabet, a der ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabic
Arabic (, ' ; , ' or ) is a Semitic languages, Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walter de Gruyter GmbH & Co. KG, Berlin/Boston, 2011. Having emerged in the 1st century, it is named after the Arabs, Arab people; the term "Arab" was initially used to describe those living in the Arabian Peninsula, as perceived by geographers from ancient Greece. Since the 7th century, Arabic has been characterized by diglossia, with an opposition between a standard Prestige (sociolinguistics), prestige language—i.e., Literary Arabic: Modern Standard Arabic (MSA) or Classical Arabic—and diverse vernacular varieties, which serve as First language, mother tongues. Colloquial dialects vary significantly from MSA, impeding mutual intelligibility. MSA is only acquired through formal education and is not spoken natively. It is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serendib (old Name)
Sri Lanka ( si, ශ්රී ලංකා, Śrī Lankā; ta, சிறி லங்கா / இலங்கை, Ilaṅkai), officially the Democratic Socialist Republic of Sri Lanka, is an island country in the northern Indian Ocean which has been known under various names over time. ''Lanka'' ''Lak-vaesiyaa'' in Sinhala means an inhabitant of the island of Lanka. ''Lak-diva'' in E'lu (old Sinhala) means the island of Lanka. Another traditional Sinhala name for Sri Lanka was ''Lakdiva'', with ''diva'' also meaning "island". A further traditional name is ''Lakbima''. ''Lak'' in both cases is derived again from ''Lanka''. The same name could have been adopted in Tamil as ''Ilankai;'' the Tamil language commonly adds "i" before initial "l". The Sanskrit epic ''Ramayana'' mentioned it ''Lanka'' and the abode of King Ravan. The name of Sri Lanka was introduced in the context of the Sri Lankan independence movement, pushing for the independence of British Ceylon during the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harran Sulci
Harran Sulci is a region of grooved terrain on the surface of Saturn's moon Enceladus. The feature is centered at 26.7° North Latitude, 237.6° West Longitude and is approximately 276 kilometers long. Harran Sulci bounds Diyar Planitia to the north and east. Using ''Voyager 2'' images, Kargel and Pozio (1996) characterized Harran Sulci as consisting of sinuous "mountainous ridges" 1-1.5 km in height, and lying within relative topographic lows. Kargel and Pozio (1996) suggested that they might be fold belts, similar to North America's Appalachian Mountains. Recent images by the '' Cassini'' spacecraft show of Harran Sulci at much higher resolution than in the ''Voyager 2'' images. The feature has a convex cross-section with numerous ridges running down the length of the feature. Like Samarkand Sulci, tall scarps facing the feature separate the surrounding cratered terrain to the north, and Diyar Planitia to the south, from Harran Sulci. Near the western end of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diyar Planitia
Diyar Planitia is a region of relatively un-cratered terrain on Saturn's moon Enceladus. Its location is 0.5° North Latitude, 239.7° West Longitude while its being approximately 311 km across. Images from the '' Voyager'' probes could not resolve whether Diyar Planitia is part of the ridged plains unit of Enceladus ( Kargel and Pozio 1996) or the smooth plains unit ( Rothery 1999), which is thought to be the youngest terrain on the moon. The more recent (and higher resolution) '' Cassini'' images show that Diyar is a region of relatively low, north-south trending ridges, with several younger fractures cutting across the region along the same trend. Very few impact craters have been found in Diyar, demonstrating the youthful age of the region. Diyar Planitia is bounded on the north and east by a band of grooved terrain named Harran Sulci. Given the similarity in the spatial relationship between the Sarandib Planitia and Samarkand Sulci, it is likely that the formation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samarkand Sulci
Samarkand Sulci is a region of grooved terrain on the surface of Saturn's moon Enceladus. The feature is centered at 30.5° North Latitude, 326.8° West Longitude, and is approximately 383 kilometers long. Samarkand Sulci consists of three parts. The southern and eastern extensions bound Sarandib Planitia on its western and northern sides, respectively. The northern portions extends into a region of cratered terrain. Using ''Voyager 2'' images, Kargel and Pozio (1996) found that the northern and southern/eastern extensions of this feature are likely distinct features with different origins and ages. The portions surrounding Sarandib Planitia were characterized as sinuous "mountainous ridges" 1-1.5 km in height, and lying within relative topographic lows. Kargel and Pozio (1996) suggested that they might be fold belts, similar to North America's Appalachian Mountains. The northern portion of Samarkand Sulci was found to consist of linear fractures, suggesting that rathe ... [...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] |
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, and southeast of the Arabian Sea; it is separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with India and Maldives. Sri Jayawardenepura Kotte is its legislative capital, and Colombo is its largest city and financial centre. Sri Lanka has a population of around 22 million (2020) and is a multinational state, home to diverse cultures, languages, and ethnicities. The Sinhalese are the majority of the nation's population. The Tamils, who are a large minority group, have also played an influential role in the island's history. Other long established groups include the Moors, the Burghers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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