Morass
Morass may refer to: *Marsh, a wetland * Morass (set theory), an infinite combinatorial structure *The Morass, former name of Inundation, Gibraltar * Palais Morass, a historic building in Heidelberg, Germany, which houses the Kurpfälzisches Museum The Kurpfälzisches Museum (Palatinate Museum) is a museum of art and archaeology in Heidelberg, Germany. It is located in the Palais Morass. It was founded in the late 1870s, when the city of Heidelberg purchased the private collection of the ... * ''Morass'' (film), a 1922 German silent film {{disambiguation ...
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Morass (set Theory)
In axiomatic set theory, a mathematical discipline, a morass is an infinite combinatorial structure, used to create "large" structures from a "small" number of "small" approximations. They were invented by Ronald Jensen for his proof that cardinal transfer theorems hold under the axiom of constructibility. A far less complex but equivalent variant known as a simplified morass was introduced by Velleman, and the term morass is now often used to mean these simpler structures. Overview Whilst it is possible to define so-called gap-''n'' morasses for ''n'' > 1, they are so complex that focus is usually restricted to the gap-1 case, except for specific applications. The "gap" is essentially the cardinal difference between the size of the "small approximations" used and the size of the ultimate structure. A (gap-1) morass on an uncountable regular cardinal ''κ'' (also called a (''κ'',''1'')-morass) consists of a tree of height ''κ'' + 1, with the top level h ...
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Inundation, Gibraltar
The Inundation was a flooded and fortified area of ground on the sandy isthmus between Spain and Gibraltar, created by the British in the 18th century to restrict access to the territory as part of the fortifications of Gibraltar. It was originally a marshy area known as the Morass at the far south-western end of the isthmus, occupying the area adjacent to the north-western flank of the Rock of Gibraltar.#Hughes, Hughes & Migos, p. 267 The Morass was dug out and expanded to create an artificial lake which was further obstructed by iron and wooden obstacles in the water. Two small fortifications on either side controlled access to Gibraltar. The only road to and from the town ran along a narrow causeway between the Inundation and the sea which was enfiladed by batteries mounted on the lower slopes of the Rock.#Landmann, Landmann, "Gibraltar" The Inundation existed for about 200 years before it was infilled and built over after the Second World War. Creation of the Inundation Prior ...
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Kurpfälzisches Museum
The Kurpfälzisches Museum (Palatinate Museum) is a museum of art and archaeology in Heidelberg, Germany. It is located in the Palais Morass. It was founded in the late 1870s, when the city of Heidelberg purchased the private collection of the artist and art historian Charles de Graimberg. Collections Archaeology Findings from the Lower Neckar Valley, including a facsimile of the lower jaw of ''Homo heidelbergensis'' discovered in Mauer; Roman artefacts; a life-sized reconstruction of the mithraeum of Heidelberg; and items dating from Heidelberg's period as the Electoral Palatinate residence. Paintings Works from the 15th to the 20th century, including portraits of historic Heidelberg figures (Frederick V, Elizabeth Charlotte, Perkeo); religious works by Rogier van der Weyden and Lucas Cranach the Elder; 17th century Dutch still lifes; 18th century rococo pictures; 19th century works by Carl Rottmann, Anselm Feuerbach and Wilhelm Trübner; and 20th century works by Alexan ...
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Marsh
A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found at the edges of lakes and streams, where they form a transition between the aquatic and terrestrial ecosystems. They are often dominated by grasses, rushes or reeds. If woody plants are present they tend to be low-growing shrubs, and the marsh is sometimes called a carr. This form of vegetation is what differentiates marshes from other types of wetland such as swamps, which are dominated by trees, and mires, which are wetlands that have accumulated deposits of acidic peat. Marshes provide habitats for many kinds of invertebrates, fish, amphibians, waterfowl and aquatic mammals. This biological productivity means that marshes contain 0.1% of global sequestered terrestrial carbon. Moreover, they have an outsized influence on climate resi ...
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Palais Morass
Palais () may refer to: * Dance hall, popularly a ''palais de danse'', in the 1950s and 1960s in the UK * ''Palais'', French for palace **Grand Palais, the Grand Palais des Champs-Elysées **Petit Palais, an art museum in Paris * Palais River in the French ''département'' of Deux-Sèvres * Palais Theatre, historic cinema ("picture palace") in Melbourne, Australia *Richard Palais (born 1931), American mathematician *Le Palais, a commune in Morbihan departement, France See also *Palais Royal (other) * Palai (other) * Palace (other) * Palas (other) A palas is that part of a medieval imperial palace or castle which contains the great hall and other prestigious state rooms. Palas may also refer to: Places * Palas, Iran, a village in Iran * Palas, a former commune, nowadays a neighbourhood in ...