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262 (number)
262 (two hundred ndsixty-two) is a natural number proceeded by the number 261 and followed by 263. It has the prime factorization 2·131. Mathematical properties There are four divisors of this number, the divisors being , , , and 262 itself, which makes it a semiprime. It is the sixth meandric number, and the ninth open meandric number. As it cannot be divided into the sum of the proper divisors of any number, it is the 17th untouchable number. As it eventually reaches 1 when replaced by the sum of the square of each digit, it is the 40th 10-happy number. As 262 is 262 backwards, it is a palindrome number. 262 was once the lowest number not to have its own Wikipedia page for more than three years since March 2017 when 261 was first created, this making it a candidate for the lowest uninteresting Number according to the definition given by Alex Bellos. In other fields 262 may refer to: * 262 AD, a calendar year * 262 BC, a calendar year * +262, a country calling cod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
261 (number)
261 (two hundred ndsixty-one) is a natural number proceeded by the number 260 and followed by 262. It has the prime factorization 32·29. Mathematical properties There are six divisors of this number, the divisors being , , , , , and 261 itself. 261 is a deficient number, since 261 is nonagonal number, unique period in base 2, and the number of possible unfolded tesseract patterns. 261 is a lucky number, as well as an odious number, meaning it has an odd number of 1's in its binary expansion, which is (with 3 ones in it). In other fields * 261 AD, a calendar year * 261 AM, a radio frequency * 261 BC, a calendar year * 261 Fearless, a non-profit organization started by Kathrine Switzer, who in 1967 wore bib number 261 when she became the first woman to run the Boston Marathon as a numbered entrant * +261, a country calling code; see telephone numbers in Madagascar * H.261, a video compression standard Military / Transportation * Flight 261, several airliner in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aérospatiale N 262
The Aérospatiale N 262 is a French twin-turboprop high-wing airliner built first by Nord Aviation (merged into Aérospatiale in 1970 in aviation, 1970). The aircraft was also known as the Nord 262. Design and development In 1957, the French aircraft manufacturer Max Holste began work on a twin-engined utility transport aircraft to replace the Douglas DC-3/C-47 Skytrain. The prototype, the Max Holste MH.250 Super Broussard, was powered by two Pratt & Whitney Wasp radial engines and first flew on 20 May 1959. A second prototype, the Nord 260, MH.260, powered by Turbomeca Bastan turboprop engines flew on 29 July 1960. In 1959, state-owned Nord Aviation (later merged with Sud Aviation and renamed Aérospatiale) signed an agreement with Max Holste to market and help produce the MH.260. Financial problems at Max Holste, however, led to Nord taking on the whole programme, with including further development of the aircraft, while Max Holste concentrated on the production of light airc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kosmos 262
Kosmos 262 (russian: Космос 262 meaning ''Cosmos 262''), also known as DS-U2-GF No.1, was a Soviet satellite which was launched in 1968 as part of the Dnepropetrovsk Sputnik programme. It was a spacecraft, which was built by the Yuzhnoye Design Bureau, and was used to study the Sun. A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 262 into low Earth orbit. The launch occurred at 09:45:01 UTC on 26 December 1968, and resulted in the successful insertion of the satellite into orbit. It took place from Site 86/4 at Kapustin Yar. Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1968-119A. The North American Aerospace Defense Command assigned it the catalogue number 03629. Kosmos 262 was the first satellite to study VUV (Vacuum Ultraviolet light). The satellite was also first to study soft X-Ray radiation from the stars, the Sun and the Earth's upper atmosphere. The craft used three 16-channel photomete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
262 Valda
Valda (minor planet designation: 262 Valda) is a main belt asteroid that was discovered by Austrian astronomer Johann Palisa on 3 November 1886 in Vienna. The name was proposed by Bettina von Rothschild.Schmadel, L. (2003:38). ''Dictionary of minor planet names''. Germany: Springer. Photometric observations of this asteroid from the Organ Mesa Observatory in Las Cruces, New Mexico, during 2010 gave a light curve In astronomy, a light curve is a graph of light intensity of a celestial object or region as a function of time, typically with the magnitude of light received on the y axis and with time on the x axis. The light is usually in a particular frequ ... with a period of 17.386 ± 0.001 hours and a brightness variation of 0.17 ± 0.02 magnitude. References External links The Asteroid Orbital Elements Database* * Background asteroids Valda Valda S-type asteroids (Tholen) 18861103 {{beltasteroid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NGC 262
NGC commonly refers to: * New General Catalogue of Nebulae and Clusters of Stars, a catalogue of deep sky objects in astronomy NGC may also refer to: Companies * NGC Corporation, name of US electric company Dynegy, Inc. from 1995 to 1998 * National Gas Company of Trinidad and Tobago, state-owned natural gas company in Trinidad and Tobago * National Grid plc, a former name of National Grid Electricity Transmission plc, the operator of the British electricity transmission system * Northrop Grumman Corporation, aerospace and defense conglomerate formed from the merger of Northrop Corporation and Grumman Corporation in 1994 * Numismatic Guaranty Corporation, coin certification company in the United States Other uses * National Gallery of Canada, art gallery founded in 1880 in Ottawa, Canada * National Geographic, documentary and reality television channel established in the United States in 2001 formerly called National Geographic Channel * Native Girls Code, US non-profit organisat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Acetate
Sodium acetate, CH3COONa, also abbreviated Na O Ac, is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses. Applications Biotechnological Sodium acetate is used as the carbon source for culturing bacteria. Sodium acetate is also useful for increasing yields of DNA isolation by ethanol precipitation. Industrial Sodium acetate is used in the textile industry to neutralize sulfuric acid waste streams and also as a photoresist while using aniline dyes. It is also a pickling agent in chrome tanning and helps to impede vulcanization of chloroprene in synthetic rubber production. In processing cotton for disposable cotton pads, sodium acetate is used to eliminate the buildup of static electricity. Concrete longevity Sodium acetate is used to mitigate water damage to concrete by acting as a concrete sealant, while also being environmentally benign and cheaper than the commonly used epoxy alternative for sealing concrete against water permeation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Acetate
Sodium acetate, CH3COONa, also abbreviated Na O Ac, is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses. Applications Biotechnological Sodium acetate is used as the carbon source for culturing bacteria. Sodium acetate is also useful for increasing yields of DNA isolation by ethanol precipitation. Industrial Sodium acetate is used in the textile industry to neutralize sulfuric acid waste streams and also as a photoresist while using aniline dyes. It is also a pickling agent in chrome tanning and helps to impede vulcanization of chloroprene in synthetic rubber production. In processing cotton for disposable cotton pads, sodium acetate is used to eliminate the buildup of static electricity. Concrete longevity Sodium acetate is used to mitigate water damage to concrete by acting as a concrete sealant, while also being environmentally benign and cheaper than the commonly used epoxy alternative for sealing concrete against water permeation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A-262
A-262 is an organophosphate nerve agent. It was developed in the Soviet Union under the FOLIANT program and is one of the group of compounds referred to as Novichok agents that were revealed by Vil Mirzayanov. Mirzayanov gives little specific information about A-262, stating that it is highly toxic but no figures are given to compare it to other related agents. It is reportedly a solid rather than a volatile liquid as with most nerve agents, and in order to weaponise it successfully, it had to be milled into a fine powder form that could be dispersed as a dust. Legal status A-262 is not specifically listed in the Annex on Chemicals of the Chemical Weapons Convention, and falls outside the general definitions covering other Novichok agents, even though it has a chemical structure similar to that of both A-232 (the example compound for schedule 1.A.14) and A-242 (the example compound for schedule 1.A.15). It would however be considered a "Toxic Chemical" under the catch-all provisio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hill 262
Battle of Hill 262, or the Mont Ormel ridge (elevation ), is an area of high ground above the village of Coudehard in Normandy that was the location of a bloody engagement in the final stages of the Battle of Falaise in the Normandy Campaign during the Second World War. By late summer 1944, the bulk of two German armies had become surrounded by the Allies near the town of Falaise. The Mont Ormel ridge, with its commanding view of the area, sat astride the only escape route still open to the Germans. Polish forces seized the northern height of the ridge on 19 August and held it until noon on 21 August, despite determined attempts by German units to overrun the position, contributing greatly to the Allied victory. The success of Operation Cobra provided the Allies with an opportunity to cut off and destroy most German forces west of the River Seine. American, British and Canadian armies converged on the area around Falaise, trapping the German 7th Army and elements of the 5th Panz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheel Arrangement
In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. Several notations exist to describe the wheel assemblies of a locomotive by type, position, and connections, with the adopted notations varying by country. Within a given country, different notations may also be employed for different kinds of locomotives, such as steam, electric, and diesel powered. Especially in steam days, wheel arrangement was an important attribute of a locomotive because there were many different types of layout adopted, each wheel being optimised for a different use (often with only some being actually "driven"). Modern diesel and electric locomotives are much more uniform, usually with all axles driven. Major notation schemes The main notations are the Whyte notation (based on counting the wheels), the AAR wheel arrangement notation (based on counting either the axles or the bogies), and the UIC classificat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-6-2
Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of two leading wheels, six coupled driving wheels and two trailing wheels. This arrangement is commonly called a Prairie. Overview The majority of American 2-6-2s were tender locomotives, but in Europe tank locomotives, described as , were more common. The first 2-6-2 tender locomotives for a North American customer were built by Brooks Locomotive Works in 1900 for the Chicago, Burlington and Quincy Railroad, for use on the Midwestern prairies. The type was thus nicknamed the Prairie in North American practice. This name was often also used for British locomotives with this wheel arrangement. As with the 2-10-2, the major problem with the 2-6-2 is that these engines have a symmetrical wheel layout, with the centre of gravity almost over the centre driving wheel. The reciprocation rods, when working near the centre of gravity, induce severe side-to-side nosing which results in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VMM-262
Marine Medium Tiltrotor Squadron 262 (VMM-262) is a United States Marine Corps tiltrotor squadron consisting of MV-22B Osprey tiltrotor aircraft. The squadron, known as the "Flying Tigers", is based at Marine Corps Air Station Futenma, Okinawa, Japan and falls under the command of Marine Aircraft Group 36 (MAG-36) and the 1st Marine Aircraft Wing (1st MAW). Mission Provide assault support transport of combat troops, supplies, and equipment during expeditionary, joint, or combined operations. Be prepared for short-notice, worldwide employment in support of Marine Air-Ground Task Force operations. History Early years Marine Medium Helicopter Squadron 262 was activated in September 1951 at Marine Corps Air Station Cherry Point, North Carolina and designated ''Marine Helicopter Transport Squadron 262'' (HMR-262). Although activated during the Korean War, the squadron remained on the U.S. east coast providing helicopter support for the Fleet Marine Force units of that area. In Febru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
