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Limelight (also known as Drummond light or calcium light) [1] is a non-electric type of stage lighting that was once used in theatres and music halls. An intense illumination is created when a flame fed by oxygen and hydrogen is directed at a cylinder of quicklime ( calcium oxide ), [ 2 ] due to a combination of incandescence and ...
These developments mostly took place in the Middle East, Central Asia, Al-Andalus, and North Africa, and later in the Far East and India. It closely parallels the genesis of other Islamic sciences in its assimilation of foreign material and the amalgamation of the disparate elements of that material to create a science with Islamic characteristics.
The earliest surviving rectangular coordinate map is dated to the 13th century and is attributed to Hamdallah al-Mustaqfi al-Qazwini, who based it on the work of Suhrāb. The orthogonal parallel lines were separated by one degree intervals, and the map was limited to Southwest Asia and Central Asia .
The Limes Arabicus was a desert frontier of the Roman Empire, running north from its start in the province of Arabia Petraea.It ran northeast from the Gulf of Aqaba for about 1,500 kilometers (930 mi) at its greatest extent, reaching northern Syria and forming part of the wider Roman limes system.
Thus, a new balance of power was established in the Middle East among Medes, Lydians, Babylonians, and, far to the south, Egyptians. At his death, Cyaxares controlled vast territories: all of Anatolia to the Halys, the whole of western Iran eastward, perhaps as far as the area of modern Tehran, and all of south-western Iran, including Fars.
Map of the Middle East between North Africa, Southern Europe, Central Asia, and Southern Asia Middle East map of Köppen climate classification. The Middle East (term originally coined in English language) [note 1] is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq.
Limes (Latin; sg., pl.: limites) is a term used primarily for the Germanic border defence or delimiting system of ancient Rome marking the borders of the Roman Empire. [1] [2] The term has been extended in modern times to refer to the frontier defences in other parts of the empire, such as in the east and in Africa.
By the middle of the 12th century, the use of drums with windows beneath the domes allowed in more light. Octagonal drums were preferred. Examples include the church of La Dorat [ fr ] in the Limousin region and the Church of Saint-Léonard-de-Noblat [ fr ] . [ 128 ]