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Arch | |
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State | Bern |
Country | Switzerland |
Capital | |
Population | 1514 |
Postcode | 3296 |
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it.
Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof.
Oak | |
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State | |
Country | |
Capital | |
Population | 0 |
An oak is a tree or shrub in the genus Quercus (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably Lithocarpus (stone oaks), as well as in those of unrelated species such as Grevillea robusta (silky oaks) and the Casuarinaceae (she-oaks). The genus Quercus is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America contains the largest number of oak species, with approximately 90 occurring in the United States, while Mexico has 160 species of which 109 are endemic. The second greatest center of oak diversity is China, which contains approximately 100 species.
Porto Alegre (UK: , US: , local Portuguese: [ˈpoɾtu aˈlɛɡɾi] (listen); lit. '"Joyful...
Turku ( TOOR-koo; Finnish: [ˈturku] (listen); Swedish: Åbo [ˈǒːbʊ] (listen), Finland Swedish:...
Lhasa (Lhasa dialect: /ɬɛː˥˥.sa˥˥/; Standard Tibetan: ལྷ་ས, lit. 'Place of Gods') or Chengguan is...