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"Kim Dae-mun (fl. early 8th century) was a Silla historian. He was the governor of Hansan in 704. According to book 46, biography section of Samguk Sagi, he wrote several books. Kim Dae-moon was a noble from Jingol. The period of survival is believed to span the units of King Sinmoon, King Hyoso and King Seongdeok. Books * Tales from Gyerim (계림잡전, Gyerim is an old word for Silla) * Records of Hansan(한산기) * Biographies of Monks of the Ancient (고승전) * Book of Music (악본) * Annals of the Hwarang (Hwarang Segi) : A manuscript of Hwarang Segi was found in Gimhae, South Korea in 1980s, but its historical validity is not clear. None of these works survive today. See also * List of Korea-related topics * History of Korea * Unified Silla References Category:Silla people Category:Historians of Korea Category:8th-century historians "
"A yardang near Meadow, Texas () (USDA photo). Yardangs in the Qaidam Desert, Qinghai Province, China. A yardang is a streamlined protuberance carved from bedrock or any consolidated or semiconsolidated material by the dual action of wind abrasion by dust and sand, and deflation which is the removal of loose material by wind turbulence.Desert Processes Working Group: Yardangs Yardangs become elongated features typically three or more times longer than wide, and when viewed from above, resemble the hull of a boat. Facing the wind is a steep, blunt face that gradually gets lower and narrower toward the lee end. Yardangs are formed by wind erosion, typically of an originally flat surface formed from areas of harder and softer material. The soft material is eroded and removed by the wind, and the harder material remains. The resulting pattern of yardangs is therefore a combination of the original rock distribution, and the fluid mechanics of the air flow and resulting pattern of erosion. Names The word itself is of Turkic origin,"yardang." Webster's Third New International Dictionary, Unabridged. Merriam-Webster, 2002. web link"yardang." Dictionary.com Unabridged (v 1.1). Random House, Inc. 12 Mar. 2008. web link meaning ‘steep bank’, and was first introduced to the English- speaking world by the Swedish explorer Sven Hedin in 1903.Hedin, S.A. (1903) Central Asia and Tibet, 2 vols, pp. 608, New York and London: Charles Scribner and Sons In China, they are sometimes known as yadan from the Chinese adaptation of the Uyghur form of the same name.. Other names for them are "mud-lions",Ralph Bagnold, 1939.Farouk El-Baz, in an entry for "Yardangs of the Western Desert of Egypt" in The Geology of Egypt: An Annotated Bibliography (1984) (p. 374), writes, "Wind has sculpted the exceptional yardang, or mud lion, form." "mushroom rocks", "sphinx-like hills", "koukour" in Tunisia, and "kalut" (Persian for "ridge") in Iran. The massive features of mega-yardangs are called "ridges and corridors" (') in French. Description A yardang is formed in cohesive material.Goudie, A.S. 2007. Mega-yardangs: A global analysis. Geography Compass 1(1):65-81, Hedin first found the wind- sculptured "clay terraces" or yardangs in the dried up riverbed of the Kurruk- daria in Central Asia. However, yardangs can be found in most deserts across the globe.Blackwelder, E. 1930. "Yardang and zastruga". Science 72(1868):396-397. Depending upon the winds and the composition of the weakly indurated deposits of silt and sand from which they are carved, yardangs may form very unusual shapes — some resemble various objects or even people. Yardangs come in a large range of sizes, and are divided into three different categories: mega-yardangs, meso-yardangs, and micro-yardangs. Mega-yardangs can be several kilometers long and hundreds of meters high and are found in arid regions with strong winds; meso-yardangs are generally a few meters high and 10 to 15 meters long and are commonly found carved in semiconsolidated playa sediments and other soft granular materials; and micro-yardangs are only a few centimeters high. A large concentration of mega-yardangs occurs near the Tibesti Mountains in the central Sahara. There is a famous yardang at Hole in the Rock in Papago Park in Phoenix, Arizona, a rock formation with a roughly circular hole in it. Another yardang in Arizona is Window Rock, near the town of Window Rock. It is a 60-meter sandstone hill with a very large circular hole in the middle of it. Some geologists have suggested that the Great Sphinx of Egypt is an augmented yardang.Goodchild, J.G. 1898. Desert conditions in Britain. Transactions of the Geological Society of Glasgow 11(1):71-104. (See page 77) Yardangs in Lucus Planum (Mars) Pictures from Mars show that the yardang ridges occur on a massive scale there; some individual ridges are tens of kilometers long with intervening valleys nearly 1 km wide. Yardangs on Mars are typically found in the Amazonis region but the best ones are found in the equatorial region. Yardangs on Mars demonstrate that much of the eolian erosion is recent since they are sculpted in young geologic units. SAO/NASA ADS Astronomy Abstract Service: Yardangs on Mars Formation Yardangs are formed in environments where water is scarce and the prevailing winds are strong, uni-directional, and carry an abrasive sediment load. The wind cuts down low-lying areas into parallel ridges which gradually erode into separate hills that take on the unique shape of a yardang. This process yields a field of yardangs of roughly the same size, commonly referred to as a fleet due to their resemblance to the bottoms of ships. Alternatively, one can be formed by the migration of a dune that leaves behind a cemented core. As the process of formation continues, typically a trough will form around the base of the yardang. Most yardang fields are in sand-poor areas, but the associated troughs, especially in grooved terrain, may be invaded by sand. Sometimes this sand will accumulate to build shallow moats around the bottom. They are more commonly created from softer rock types like siltstone, sandstone, shale and limestone, but have also been observed in crystalline rocks such as schist and gneiss. See also * *, China * * References External links *Yardangs in Tithonium Chasma, Mars *Hole in the Rock *Window Rock *Yardangs, Desert Processes Working Group; Knowledge Sciences, Inc. * Category:Aeolian landforms Category:Geomorphology "
"Fairchild may refer to: Organizations * Fairchild Aerial Surveys, operated in cooperation with a subsidiary of Fairey Aviation Company * Fairchild Camera and Instrument * List of Sherman Fairchild companies, "Fairchild" companies * Fairchild Fashion Media * Fairchild Group, a Chinese-language media company in Canada ** Fairchild TV, a Cantonese-language television channel in Canada owned by the Fairchild Group * Fairchild-Hiller Corporation, U.S. aviation company ** Fairchild Aircraft, an aircraft manufacturer, division of Fairchild, also variously known as Fairchild-Hiller, Fairchild-Republic and Fairchild-Dornier ** Fairchild Aircraft Ltd. (Canada), a Canadian aircraft manufacturer ** Fairchild Industries, Inc. ; U.S. aviation company, successor to Fairchild Hiller Corporation ** Fairchild Corporation, U.S. aviation company, successor to Fairchild Industries * Fairchild Publications, Inc. * Fairchild Recording Equipment Corporation * Fairchild Semiconductor, an American semiconductor company * Fairchild Systems, U.S. defense contractor * Sherman Fairchild Foundation People * Fairchild (name) * Fairchild family, descendants of Thomas Fairchild (1610–1670), English nurseryman Places * Fairchild, Georgia * Fairchild, Wisconsin, a village located within the town of Fairchild * Fairchild (town), Wisconsin, a town that contains the village of Fairchild * Fairchild Air Force Base, Washington state, USA * Fairchild Beach, Heard Island, subantarctic waters * Fairchild Glacier, Washington state, USA * Fairchild Mountain, Colorado, USA * Fairchild Peak, Antarctica * Fairchild Tropical Botanic Garden, Coral Gables * Fairchilds, Texas * William R. Fairchild International Airport, Port Angeles, Washington state, USA Entertainment * FairChild (2007 videogame), a Japanese visual novel * The Fairchild Channel F, an early video game console Food * Fairchild (mango), a commercial mango cultivar originating in Panama * Fairchild tangerine Other * Fairchild Memorial Hall, Maxwell Air Force Base, Alabama, USA See also * Fair (disambiguation) * Child (disambiguation) * Fairchildren, semiconductor companies founded by people who left the Shockley Semiconductor Laboratory * Fairchildren (album), a 2015 album * Fairbairn * Fairchild House (disambiguation) * Fairchild and North-Eastern Railway * The Fairchild Challenge, environmental outreach program * Justice Fairchild (disambiguation) "