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O.21 , with a zero in place of the letter O
{{Letter-Number Combination Disambiguation ...
O21 may refer to: * ''O21'' (film), a 2014 Pakistani action thriller film * Hoopa Airport in Humboldt County, California, United States * , of the Royal Netherlands Navy ** , a submarine of this class * O21 scale, a model railway scale * Otoyol 21, a motorway in Turkey * Oxygen-21, an isotope of oxygen * Thomas-Morse O-21, an observation aircraft of the United States Army Air Corps See also *021 (other) 021 is an area code used for cities in many countries. 021 may also refer to: *Codex Campianus Codex Campianus is designated as "M" or "021" in the Gregory-Aland cataloging system and as "ε 72" in the Von Soden system. It is a Greek uncial ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O21 (film)
''O21'' (or ''Operation 21'' formerly ''The Extortionist'') is a 2014 Cinema of Pakistan, Pakistani spy film, spy thriller film, directed by Jamshed Mahmood Raza, Jami, and Summer Nicks and produced by Zeba Bakhtiar and her son Azaan Sami Khan. It is the first spy action thriller movie from Pakistan. The film, produced by One Motion Pictures, is based on a screenplay by Summer Nicks. Zeba Bakhtiar is the film’s executive producer and the lead roles are played by Aamina Sheikh, winner of the best actress prize at the New York International Film Festival, the renowned actor Shaan Shahid who has received accolades through countless Pakistani blockbusters, most recently ''Waar''. ''O21'' is the 576th feature film of Shaan's career. Plot outline Abdullah (Ayub Khoso), after 30 years of war in Afghanistan, wants to save his country from another 50 years of corporate warfare. He works with his Pakistani ally Kashif Siddiqui (Shaan Shahid) to save the two neighboring countries from f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoopa Airport
Hoopa Airport is a public airport located on Airport Road next to the Trinity River, one mile (1.6 km) southeast of Hoopa, serving Humboldt County, California, United States. It is mostly used for general aviation. Facilities Hoopa Airport covers 40 acres and has one runway: * Runway 14/32: 2,325 x 50 ft (709 x 15 m), surface: asphalt Asphalt, also known as bitumen (, ), is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term ... References * External links Airports in Humboldt County, California {{California-airport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O21 Scale
O, or o, is the fifteenth letter and the fourth vowel letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''o'' (pronounced ), plural ''oes''. History Its graphic form has remained fairly constant from Phoenician times until today. The name of the Phoenician letter was '' ʿeyn'', meaning "eye", and indeed its shape originates simply as a drawing of a human eye (possibly inspired by the corresponding Egyptian hieroglyph, cf. Proto-Sinaitic script). Its original sound value was that of a consonant, probably , the sound represented by the cognate Arabic letter ع ''ʿayn''. The use of this Phoenician letter for a vowel sound is due to the early Greek alphabets, which adopted the letter as O "omicron" to represent the vowel . The letter was adopted with this value in the Old Italic alphabets, including the early Latin alphabet. In Greek, a variation of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Narrow Gauge Model Railway Scales
__FORCETOC__ Railway modelling has long used a variety of scales and gauges to represent its models of real subjects. In most cases, gauge and scale are chosen together, so as to represent Stephenson standard gauge. By choosing a smaller gauge than this for a particular scale, the model represents a narrow-gauge example. Such gauge and scale combinations are of course used for the deliberate modelling of particular narrow-gauge subjects, where the choice of subject is behind the choice of combination. Narrow-gauge modelling has also become especially popular from the purely modelling aspects: it combines a conveniently visible large scale that is easier to work on, with a narrow model gauge that allows tighter radius curves and so fits layouts into smaller spaces. This has been a particular reason in Europe where, houses being generally smaller than in the US, there is rarely space for 0 gauge and even 00 gauge is restricted in the size of curves. At times, particularly in the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otoyol 21
Otoyol 21 ( en, Motorway 21), abbreviated as O-21, a.k.a. Ankara-Tarsus Otoyolu ( en, Ankara-Tarsus Motorway), is a completed toll motorway in the Central Anatolia and Mediterranean regions in Turkey. Currently, it is connecting Otoyol 20 from Gölbaşı, Ankara with the Adana-Mersin Motorway O-51 at Tarsus in Mersin Province. On its full length, it is part of the European E90. The last part of the highway opened on 16 December 2020. Exit list See also * List of highways in Turkey The three types of intercity roads in Turkey • Motorways are controlled-access highways that are officially named '' Otoyol''. But it isn't uncommon that people in Turkey call them ''Otoban'' (referring to Autobahn) as this types of roads en ... References External links Exit list of O-21 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxygen-21
There are three known stable isotopes of oxygen (8O): , , and . Radioactive isotopes ranging from to have also been characterized, all short-lived. The longest-lived radioisotope is with a half-life of , while the shortest-lived isotope is with a half-life of (though the half-lives of the neutron-unbound and are still unknown). List of isotopes , - , , style="text-align:right" , 8 , style="text-align:right" , 3 , , [] , proton emission, 2p , , (3/2−) , , , - , , style="text-align:right" , 8 , style="text-align:right" , 4 , , , 2p , , 0+ , , , - , rowspan=2, , rowspan=2 style="text-align:right" , 8 , rowspan=2 style="text-align:right" , 5 , rowspan=2, , rowspan=2, , β+ () , , rowspan=2, (3/2−) , rowspan=2, , rowspan=2, , - , β+p () , , - , , style="text-align:right" , 8 , style="text-align:right" , 6 , , , β+ , , 0+ , , , - , , style="text-align:right" , 8 , style="text-align:right" , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas-Morse O-21
The Thomas-Morse O-19 was an American observation biplane built by the Thomas-Morse Aircraft Company for the United States Army Air Corps. Development The O-19 was based on the earlier Thomas-Morse O-6 biplane. It was a conventional two-seat biplane of metal construction with fabric-covered wings and tail surfaces. The design was evaluated with a number of different engine installations and the type was ordered into production as the O-19B with a Pratt & Whitney R-1340-7 Wasp radial engine. Variants ;XO-19 :Improved version of the XO-6 with a Pratt & Whitney R-1340-3 engine, one built. ;YO-20 :Similar to the XO-19 with a Pratt & Whitney R-1690-1 engine, one built. ;XO-21 :Similar to the XO-19 with a Curtiss H-1640-1 engine, one built, later re-engined as the XO-21A. ;XO-21A :The XO-21 fitted with a Wright R-1750-1 engine. ;O-19 :Service evaluation aircraft with a Pratt & Whitney R-1340-9, two built. ;O-19A :O-19 without the 88 US Gallon main fuel tank, one built. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
