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A0 (other)
A0, A-0, A0, or a0 may refer to: * 101 A0 and 103 A0, two versions of the German Heinkel Tourist moped * A0 paper size, an international ISO 216 standard paper size (841 × 1189 mm), which results in an area very close to 1 m2 * A0 highway (Zimbabwe), a highway which orbits Zimbabwe * A0, the lowest A (musical note) note on a standard piano * A0, a climbing grade * A00, Irregular chess openings code in the Encyclopaedia of Chess Openings * A00, an unofficial paper size twice the size of A0 paper size * A-0 Geyser, a geyser in Yellowstone National Park * A-0 System, an early compiler related tool developed for electronic computers * L'Avion, IATA airline designator for the French airline * Characters of type A0, an older term for algebraic Hecke characters * ''a''0, the accepted mathematical symbol for the Bohr radius * Haplogroup A00 and A0; see Y-chromosomal Adam and Haplogroup A (Y-DNA) * A0, a subdivision in stellar classification * A0, sometimes written as 0xA0, is the hex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AO (other)
AO, aO, Ao, or ao may refer to: Places * Ao (building) * Ao, Estonia, village in Väike-Maarja Parish, Lääne-Viru County, Estonia * Ao Line, commuter railway line in Hyōgo Prefecture, Japan * Ao River (Fujian), in China * Ao Station, railway station in the city of Ono, Hyōgo Prefecture, Japan * Aodu, capital of Shang dynasty, near Zhengzhou * Aoshima, Ehime, island in Japan * Aoshima, Miyazaki, island in Japan * Angola (ISO 3166-1 alpha-2 code AO) Arts and entertainment * Adults Only, an Entertainment Software Rating Board#Ratings, entertainment rating * AO Music (AOmusic), a world-music fusion group consisting of Jay Oliver, Miriam Stockley and others * Ao: The Last Hunter, a 2010 prehistoric drama movie * ''Eureka Seven: AO'', Japanese mecha anime television series * Lord Ao, a fictional deity in the ''Dungeons & Dragons'' universe * Annoying Orange, an American comedy web series Businesses and organizations * AO (originally American Optical Company) eyeglass lenses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplogroup A (Y-DNA)
Haplogroup A is a human Y-chromosome DNA haplogroup, which includes all living human Y chromosomes. Bearers of extant sub-clades of haplogroup A are almost exclusively found in Africa (or among the African diaspora), in contrast with haplogroup BT, bearers of which participated in the Out of Africa migration of early modern humans. The known branches of haplogroup A are A00, A0, A1a, and A1b1; these branches are only very distantly related, and are not more closely related to each other than they are to haplogroup BT. Origin Though there are terminological challenges to define it as a haplogroup, haplogroup A has come to mean "the foundational haplogroup" (viz. of contemporary human populations); it is not defined by any mutation, but refers to any haplogroup which is not descended from the haplogroup BT; in other words, it is defined by the absence of the defining mutation of that group (M91). By this definition, haplogroup A includes all mutations that took place betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messerschmitt Me 210
The Messerschmitt Me 210 was a German heavy fighter and ground-attack aircraft of World War II. Design started before the war, as a replacement for the Bf 110. The first examples were ready in 1939, but they proved to have unacceptably poor flight characteristics due to serious wing planform and fuselage design flaws. A large-scale operational testing program throughout 1941 and early 1942 did not cure the type's problems. The design entered limited service in 1942, but was soon replaced by the Messerschmitt Me 410 Hornisse, a further development of the Me 210. The failure of the Me 210's development program meant the ''Luftwaffe'' was forced to continue operating the Bf 110 after it had become outdated, despite mounting losses. Design and development Messerschmitt designers had started working on an upgrade of the Bf 110 in 1937, before the production version of the Bf 110 had even flown. In late 1938, the Bf 110 was just entering service, and the RLM started looking ahead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Junkers Ju 87
The Junkers Ju 87, popularly known as the "Stuka", is a German dive bomber and ground-attack aircraft. Designed by Hermann Pohlmann, it first flew in 1935. The Ju 87 made its combat debut in 1937 with the Luftwaffe's Condor Legion during the Spanish Civil War of 1936–1939 and served the Axis powers, Axis in World War II from beginning to end (1939–1945). The aircraft is easily recognisable by its inverted gull wings and fixed Aircraft fairing, spatted Landing gear, undercarriage. Upon the leading edges of its faired main gear legs were mounted ram-air Siren (alarm), sirens, officially called "Lärmgerät" (noise device), which became a propaganda symbol of German Aerial warfare, air power and of the so-called ''Blitzkrieg'' victories of 1939–1942, as well as providing Stuka pilots with audible feedback as to speed. The Stuka's design included several innovations, including automatic pull-up dive brakes under both wings to ensure that the aircraft recovered from its attac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henschel Hs 126
The Henschel Hs 126 was a twin-seat parasol wing reconnaissance and observation aircraft designed and produced by the German aircraft manufacturer Henschel. The Hs 126 that was derived from the Henschel Hs 122. The pilot was seated in a protected cockpit under the parasol wing and the gunner in an open rear cockpit. In the autumn of 1936, the first prototype made its maiden flight; it was soon followed by two more prototypes and a batch of pre-production aircraft. During early 1938, the Hs 126 underwent service evaluation; it was well received for its good short takeoff performance and low-speed flight characteristics, attributes that proved to be frequently useful during its operational history. The Hs 126 saw combat on numerous fronts, the first occasion being with the '' Legion Condor'' contingent that participated in the Spanish Civil War during the late 1930s. It was active on numerous fronts of the Second World War, by which point it had become the principal short ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinkel He 177
The Heinkel He 177 ''Greif'' (Griffin) was a long-range heavy bomber flown by the ''Luftwaffe'' during World War II. The introduction of the He 177 to combat operations was significantly delayed by problems both with the development of its engines and frequent changes to its intended role. Nevertheless, it was the only long-range, heavy bomber to become operational with the ''Luftwaffe'' during the conflict. The He 177 had Payload#Relationship of range and payload, a payload/range capability similar to that of four-engined heavy bombers used by the Allies in the Western Front (World War II), European theatre. Work on the design began in response to a 1936 requirement known as Bomber A, issued by the Ministry of Aviation (Nazi Germany), ''Reichsluftfahrtministerium'' (RLM) for a purely strategic bomber. Thus, the He 177 was intended originally to be capable of a sustained bombing campaign against Soviet Union, Soviet manufacturing capacity, Ural economic region, dee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siebel Si 204
The Siebel Si 204 is a small twin-engined transport and trainer aircraft developed in World War II. It was based on the Siebel Fh 104 Hallore. Originally designed in response to a German Ministry of Aviation (Nazi Germany), Ministry of Aviation development order for a small civil transport aircraft in 1938, it was eventually produced for the Luftwaffe. Development and production The Si 204 was planned as a small all-metal passenger aircraft with two crew and eight passengers for German airline Deutsche Luft Hansa (DLH). Development was initiated in 1938. The contractor was, as usual, the RLM, but the development was conducted in close collaboration between DLH and Siebel in Halle (Saale), Halle. After the beginning of the war, the aircraft was redesigned as a trainer aircraft with a full "stepless" glass cockpit, as had been initiated with the Heinkel He 111#He 111 P, He 111P in early 1938, with no separate flat windscreen for the pilot (much as almost all German bomber aircr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter HWK 509
The Walter HWK 109-509 was a German liquid-fuel bipropellant rocket engine that powered the Messerschmitt Me 163 Komet and Bachem Ba 349 aircraft. It was produced by Hellmuth Walter Kommanditgesellschaft (HWK) commencing in 1943, with licensed production by the Heinkel firm's facilities in Jenbach, Austria. Design and development Early versions of the Me 163 had been powered by an earlier design running on a "cold engine" fueled with Z-Stoff. This fuel tended to clog the jets in the combustion chamber, causing fluctuations in power and potentially explosions. Worse, however, was the fact that the engine could not be throttled, and when the aircraft leveled off after its climb to altitude it quickly accelerated to speeds that caused serious compressibility issues. The RLM demanded that a version be developed with a throttle. During this period Walter had also been working with a new fuel known as C-Stoff that gave off significant heat and was thus known as the "hot engine". C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bucharest Ring Motorway
The Bucharest Ring Motorway (or the Bucharest Belt Motorway, ), termed A0, is a motorway ring in construction around the city of Bucharest, the capital of Romania. It is intended to be the outer ring of the existing Bucharest Ring Road. It is split into two sections: the South Ring Motorway and the North Ring Motorway. It will have a total distance of 100.87 km and will be a motorway connection between the existing A1, A2 and A3 motorways. Sections South section The South Ring Motorway (51.3 km) was tendered as a concession contract in December 2012, that was supposed to be awarded in November 2013. Yet, a new tender was announced in July 2017, that shall be completed between the end of 2017 and the first half of 2018, with an estimated cost of 580 million euros. Construction works should take three years and a half to complete. It will run through the south of Bucharest, along the route of the Pan-European Corridor IV. A tender for a segment of 17.5 km (1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A0 Road (Sri Lanka)
The A0 is an List of A-Grade highways in Sri Lanka, A-Grade road in Sri Lanka. It connects Kollupitiya and Sri Jayawardenepura, the nation's capital. The highway passes through Rajagiriya. References {{SriLanka-road-stub Highways in Sri Lanka, A00 highway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Non-breaking Space
In word processing and digital typesetting, a non-breaking space (), also called NBSP, required space, hard space, or fixed space (in most typefaces, it is not of fixed width), is a space character that prevents an automatic line break at its position. In some formats, including HTML, it also prevents consecutive whitespace characters from collapsing into a single space. Non-breaking space characters with other widths also exist. Uses Despite having layout and uses similar to those of whitespace, it differs in contextual behavior. Non-breaking behavior Text-processing software typically assumes that an automatic line break may be inserted anywhere a space character occurs; a non-breaking space prevents this from happening (provided the software recognizes the character). For example, if the text "100 km" will not quite fit at the end of a line, the software ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stellar Classification
In astronomy, stellar classification is the classification of stars based on their stellar spectrum, spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a Prism (optics), prism or diffraction grating into a spectrum exhibiting the Continuum (spectrum), rainbow of colors interspersed with spectral lines. Each line indicates a particular chemical element or molecule, with the line strength indicating the abundance of that element. The strengths of the different spectral lines vary mainly due to the temperature of the photosphere, although in some cases there are true abundance differences. The ''spectral class'' of a star is a short code primarily summarizing the ionization state, giving an objective measure of the photosphere's temperature. Most stars are currently classified under the Morgan–Keenan (MK) system using the letters ''O'', ''B'', ''A'', ''F'', ''G'', ''K'', and ''M'', a sequence from the hottest (''O'' type) to the cool ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
