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In J. R. R. Tolkien's fantasy writings, Isengard (/ ˈ aɪ z ən ɡ ɑːr d /) is a large fortress in Nan Curunír, the Wizard's Vale, in the western part of Middle-earth.In the fantasy world, the name of the fortress is described as a translation of Angrenost, a word in Tolkien's elvish language, Sindarin, a compound of two Old English words: īsen and ġeard, meaning "enclosure of iron".
The definition of a closed loop control system according to the British Standards Institution is "a control system possessing monitoring feedback, the deviation signal formed as a result of this feedback being used to control the action of a final control element in such a way as to tend to reduce the deviation to zero."
The name "Taj Mahal" is of Urdu origin, and believed to be derived from Arabic and Persian, with the words tāj mahall meaning "crown" (tāj) "palace" (mahall). [ 4 ] [ 5 ] [ 6 ] Abdul Hamid Lahori , in his book from 1636 Padshahnama , refers to the Taj Mahal as rauza -i munawwara ( Perso-Arabic : روضه منواره , rawdah-i munawwarah ...
Copper-silver ionization is an effective process to control Legionella in potable water distribution systems found in health facilities, hotels, nursing homes, and most large buildings. However, it is not intended for cooling towers because of pH levels greater than 8.6, that cause ionic copper to precipitate.
Stanford University professor Umran Inan told Popular Science that weather-control conspiracy theories were "completely uninformed," explaining that "there's absolutely nothing we can do to disturb the Earth's [weather] systems. Even though the power HAARP radiates is very large, it's minuscule compared with the power of a lightning flash—and ...
Calais remained under English control until its recapture by France in 1558. During World War II , the town was virtually razed to the ground: in May 1940, it was a strategic bombing target of the invading German forces who took it during the siege of Calais .
The Tokyo Skytree in Tokyo, Japan has been the tallest tower since 2012.. This list includes extant structures that fulfill the engineering definition of a tower: "a tall human structure, always taller than it is wide, for public or regular operational access by humans, but not for living in or office work, and which is self-supporting or free-standing, meaning no guy-wires for support."
Mecca has been referred to by many names. As with many Arabic words, its etymology is obscure. [24] Widely believed to be a synonym for Makkah, it is said to be more specifically the early name for the valley located therein, while Muslim scholars generally use it to refer to the sacred area of the city that immediately surrounds and includes the Ka'bah.