Amazonas may refer to:
Amazonas State (Spanish: Estado Amazonas, IPA: [esˈtaðo amaˈsonas]) is one of the 23 states (estados) into which Venezuela is divided. It covers nearly a fifth of the area of Venezuela, but has less than 1% of Venezuela's total population.
The state capital is Puerto Ayacucho. The capital until the early 1900s was San Fernando de Atabapo. Although named after the Amazon River, most of the state is drained by the Orinoco River. Amazonas State covers a total surface area of 176,899 km² and, in 2007, had a population of 142,200. Its density is of 0.8 inhabitants per km².
Amazonas has Venezuela's highest proportion of indigenous peoples of Venezuela; these make up only around 1.5% of the population nationwide, but the proportion is nearly 50% in Amazonas.
The territory covered by present-day Amazonas was previously part of the Guayana Province, a Province of the Spanish Empire (from 1585) and later of Venezuela (until 1864, when the Provinces of Venezuela were replaced by the States of Venezuela, following the Federal War). Amazonas was created as a state in 1994, having been a Federal Territory since 1864.
Department of Amazonas (Spanish: Departamento del Amazonas, Spanish pronunciation: [amaˈsonas]) is a department of Colombia in the south of the country. It is the largest department in area while also having the 3rd smallest population. Its capital is Leticia. Its name comes from the Amazon River that drains much in the department and the rainforest that covers a large part of the department.
The department name comes from the name of the Amazon River. The river was named by the Spanish explorer Francisco de Orellana (1511 - 1546), who, on his voyage of exploration, said he was attacked by "fierce females" looked like Amazons of the Greek mythology, however, the existence of a female warrior tribe in that time hasn’t been demonstrated and it is possible that they were long-haired Native American warriors who impressed the conqueror who called the jungle and the river with the name of Amazon.
The following ethnic groups are found in the department: Bora, Cocama, Macuna, Mirana, Okaina, Ticunas, Tucano, Uitoto, Yagua and Yucuna, among others. These groups are more than 5,000 years old.
In geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, "eight angles") is an eight-sided polygon or 8-gon.
A regular octagon has Schläfli symbol {8} and can also be constructed as a quasiregular truncated square, t{4}, which alternates two types of edges. A truncated octagon, t{8} is a hexadecagon, t{16}.
The sum of all the internal angles of any octagon is 1080°. As with all polygons, the external angles total 360°.
If squares are constructed all internally or all externally on the sides of an octagon, then the midpoints of the segments connecting the centers of opposite squares form a quadrilateral that is both equidiagonal and orthodiagonal (that is, whose diagonals are equal in length and at right angles to each other).
The midpoint octagon of a reference octagon has its eight vertices at the midpoints of the sides of the reference octagon. If squares are constructed all internally or all externally on the sides of the midpoint octagon, then the midpoints of the segments connecting the centers of opposite squares themselves form the vertices of a square.
The Main Building at University College London, includes the Octagon, Quad, Cloisters, Main Library, Flaxman Gallery and the Wilkins Building. The North Wing, South Wing, Chadwick Building and Pearson Building are also considered part of the main UCL building.
In 1827, a year after the founding of UCL, construction of the Main Building began on the site of the old Carmarthen Square. The Octagon Building is a term used for the whole of the Main Building, but more appropriately for a central part of it. At the centrepiece of the building is an ornate dome, which is visible throughout the immediate area. The Octagon was designed by the Architect William Wilkins, who also designed the National Gallery. The original plans by Wilkins called for a U-shaped enclosure around the Quad (square). Funds, however, ran out in 1829 with only the Portico and Dome finished. Wilkins original plans were not to be completed until the 20th century: The Main Building was finally finished in 1985, 158 years since the foundations were laid, with a formal opening ceremony by Queen Elizabeth II of the United Kingdom.
Octagon is the second studio album by Dilate, released on June 24, 1997 by Hypnotic Records.
All music composed by Victor Wulf.
Adapted from the Octagon liner notes.