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The apparent lightness of its dome may be attributed to both even lighting and the unusual lack of pendentives, with the dome on its circular entablature above eight columns instead. [165] Its use of bulbous domes on the lantern and side towers was also unusual in Italy, where bulbous domes remained rare. [101]
The hemispherical dome is a surface formed by the rotation around a vertical axis of a semicircle. Like other "rotational domes" formed by the rotation of a curve around a vertical axis, hemispherical domes have circular bases and horizontal sections and are a type of "circular dome" for that reason.
A tholos (pl.: tholoi; from Ancient Greek θόλος, meaning "conical roof" [1] or "dome"), in Latin tholus (pl.: tholi), is a form of building that was widely used in the classical world. It is a round structure with a circular wall and a roof, usually built upon a couple of steps (a podium), and often with a ring of columns supporting a ...
A rotunda (from Latin rotundus) is any roofed building with a circular ground plan, and sometimes covered by a dome. It may also refer to a round room within a building (an example being the one below the dome of the United States Capitol in Washington, D.C.). The Pantheon in Rome is perhaps the most famous, and is the most influential rotunda.
In architecture, a pendentive is a constructional device permitting the placing of a circular dome over a square room or of an elliptical dome over a rectangular room. [1] The pendentives, which are triangular segments of a sphere, taper to points at the bottom and spread at the top to establish the continuous circular or elliptical base needed for a dome. [2]
An oculus (from Latin oculus ' eye '; pl.: oculi) is a circular opening in the center of a dome or in a wall. Originating in classical architecture, it is a feature of Byzantine and Neoclassical architecture. A horizontal oculus in the center of a dome is also called opaion (from Ancient Greek ὀπαῖον ' (smoke) hole '; pl.: opaia).
First dome with a polygonal ground plan [3] 1227 16.9 × 21.0 55.4 × 68.9 St. Gereon's Basilica: Cologne, Germany Elliptical dome. Largest dome to be constructed in the Occident in the years between the construction of Hagia Sophia's dome in 563 and the completion of Florence Cathedral in 1436. [60] 1405 18.2 60 Mausoleum of Khoja Ahmed Yasavi
A dome is a feature in structural geology where a circular part of the Earth's surface has been pushed upward, tilting the pre-existing layers of earth away from the center. In technical terms, it consists of symmetrical anticlines that intersect each other at their respective apices .