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Artificial Islands
An artificial island is an island that has been constructed by people rather than formed by natural means. Artificial islands may vary in size from small islets reclaimed solely to support a single pillar of a building or structure to those that support entire communities and cities. Early artificial islands included floating structures in still waters or wooden or megalithic structures erected in shallow waters (e.g. crannógs and Nan Madol discussed below). In modern times artificial islands are usually formed by land reclamation, but some are formed by the incidental isolation of an existing piece of land during canal construction (e.g. Donauinsel, Ko Kret, and much of Door County, Wisconsin), or flooding of valleys resulting in the tops of former knolls getting isolated by water (e.g., Barro Colorado Island). One of the world's largest artificial islands, René-Levasseur Island, was formed by the flooding of two adjacent reservoirs. History Despite a popular image o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flevoland By Sentinel-2, 2018-06-30
Flevoland () is the twelfth and youngest Provinces of the Netherlands, province of the Netherlands, established in 1986, when the southern and eastern Flevopolders, together with the Noordoostpolder, were merged into one provincial entity. It is in the centre of the country in the former Zuiderzee, which was turned into the freshwater IJsselmeer by the closure of the Afsluitdijk in 1932. Almost all of the land belonging to Flevoland was Land reclamation, reclaimed in the 1950s and 1960s while splitting the Markermeer and Bordering lakes from the IJsselmeer. As to dry land, it is the smallest province of the Netherlands at , but not gross land as that includes much of the waters of the fresh water lakes (meres) mentioned. The province has a population of 423,021 as of January 2020 and consists of six List of municipalities of the Netherlands, municipalities. Its capital is Lelystad and its most populous city is Almere, which forms part of the Randstad and has grown to become the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
