|
M-40 (Spain)
M40 or M-40 may refer to: Transportation * M40 motorway, a motorway in England * M-40 (Michigan highway), a state highway in Michigan, US * M40 (Cape Town), a Metropolitan Route in Cape Town, South Africa * M40 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa * M40 (Pietermaritzburg), a Metropolitan Route in Pietermaritzburg, South Africa * Autopista de Circunvalación M-40, a motorway in Madrid, Spain * BMW M40, a 1987 automobile piston engine * Charomskiy M-40, an aircraft engine * Volvo M40 transmission, an automobile transmission Science * Messier 40 (M40), a double star in the constellation Ursa Major * the 40th Mersenne prime Firearms and military equipment * M40 field protective mask, a United States military gas mask * M40 rifle, a sniper rifle * M40 Gun Motor Carriage, a United States self-propelled artillery vehicle * M40 recoilless rifle, an anti-tank gun * M/40 Automatic cannon, a Swedish heavy machine gun * Macchi M.40, a prototype 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M40 Motorway
The M40 motorway links London, Oxford and Birmingham in England, a distance of approximately . The motorway is dual three lanes except for junction 1A to junction 3 (which is dual four lanes) a short section in-between the exit and entry slip-roads at junction 4 (which is two lanes in both directions) and also between the slip-roads at junction 9 (in the southbound direction only). An Active Traffic Management system operates on the short section northbound from junction 16 ( A3400) to the M42. History London to Great Milton The motorway between London and Oxford was constructed in stages between 1967 and 1974. The first section opened in June 1967, from Handy Cross roundabout, High Wycombe to Stokenchurch (junctions 4–5). In 1969, extending in a southerly direction to Holtspur, Beaconsfield, a temporary junction 2 was opened,. The section bypassing Beaconsfield was built in 1971 and the section past Gerrards Cross to junction 1 was completed in 1973. In 1974, the motor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M40 Field Protective Mask
The M40 field protective mask was one of various protective masks used by the United States Armed Forces and its allies to protect from field concentrations of chemical and biological agents, along with radiological fallout particles. It is not effective in an Oxygen deficiency, oxygen deficient environment or against ammonia. History The M40 was the result of a program in the 1980s to develop a successor to the M17 gas mask, M17-series protective masks which had been in service with the US armed forces since 1959. The M40 was to be a return to conventional protective mask design with an external side-mounted filter canister, rather than the internal cheek filters of the M17, which were awkward to change, especially in a contaminated environment. The final prototype, the XM40, was approved for service and then designated the M40. The M40 was phased into service with the United States Army, U.S. Army and United States Marine Corps, Marine Corps in the mid-1990s, with another ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masters Athletics
Masters athletics is a class of the sport of athletics for athletes of over 35 years of age. The events include track and field, road running and cross country running. Competitors are bracketed into five-year age groups (which promotes fair competition). For international events the first age group is 35 to 39. Men as old as 105 and women in their 100s have competed in running, jumping and throwing events. Masters athletes are sometimes known as "veterans" and the European Masters Championships, for instance, is known as "Eurovets." This and other high level events including biennial World Championships cater largely to elite-level athletes, but many masters athletes are novices to athletics and enjoy the camaraderie offered by masters competition at the local, National and International level. Most National governing bodies for track and field hold annual Masters championships. Prestigious National meets such as the Penn Relays and the United States Olympic Trials (track and fie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SSh-40
The SSh-39 (russian: СШ-39) and SSh-40 (russian: СШ-40, both from стальной шлем, ''stal'noy shlem'', ) were two similar designs of steel combat helmet designed and used by the Soviet Union's Red Army. They were the main forms of helmet in use during World War II and had only superficial differences. SSh-39 The SSh-39 was of simple, more modern design, and was much easier to manufacture than the SSh-36. The SSh-39 would be the standard design for Soviet helmets for the next 29 years, with only minor changes occurring during that time. It is also the design for the helmet on the Tomb of the Unknown Soldier in Moscow. The helmet was produced primarily in three factories, the Stalingrad Tractor Factory (designated CT in the ink stamp), the Red October Factory (ЗКО) also in Stalingrad, and the Lysva Metallurgical Factory (LMZ). The first liner was an eight-finger leather liner, similar to those of the German M35 to M42 ''Stahlhelm'' designs. Next came a short p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macchi M
Aermacchi was an Italian aircraft manufacturer. Formerly known as Aeronautica Macchi, the company was founded in 1912 by Giulio Macchi at Varese in north-western Lombardy as Nieuport-Macchi, to build Nieuport monoplanes under licence for the Italian military. With a factory located on the shores of Lake Varese, the firm originally manufactured a series of Nieuport designs, as well as seaplanes. After World War II, the company began producing motorcycles as a way to fill the post-war need for cheap, efficient transportation. The company later specialised in civil and military pilot training aircraft. In July 2003, Aermacchi was integrated into the Finmeccanica Group (now Leonardo) as Alenia Aermacchi, which increased its shareholding to 99%. Military trainers Since the beginning, the design and production of military trainers have been the core business of Alenia Aermacchi. The products include: * SF-260, piston-engined or turboprop-powered screener/primary traine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M40 Recoilless Rifle
The M40 recoilless rifle is a portable, crew-served 105 mm recoilless rifle made in the United States. Intended primarily as an anti-tank weapon, it could also be employed in an antipersonnel role with the use of an antipersonnel-tracer flechette round. The bore was commonly described as being 106 mm caliber but is in fact 105 mm; the 106 mm designation was intended to prevent confusion with incompatible 105 mm ammunition from the failed M27. The air-cooled, breech-loaded, single-shot rifle fired fixed ammunition and was used primarily from a wheeled ground mount. It was designed for direct firing only, and sighting equipment for this purpose was furnished with each weapon, including an affixed spotting rifle. A limited number of M50 Ontos were built as a self-propelled light armored tracked anti-tank vehicle. They had six 106 mm M40 recoilless rifles as its main armament, which could be fired in rapid succession against a single target to guarantee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M40 Gun Motor Carriage
The 155 mm Gun Motor Carriage M40 was an American self-propelled artillery vehicle built on a widened and lengthened Medium Tank M4A3 chassis, but with a Continental engine and with HVSS (Horizontal Volute Spring Suspension), which was introduced at the end of the Second World War. Description Equipped with a 155 mm M2 gun, it was designed to replace the earlier M12 Gun Motor Carriage. Its prototype designation was the T38, but this was changed to the M40 in March 1945. A single pilot vehicle was used in the European Theatre in 1945 by the 991st Field Artillery Battalion, along with a related 8 inch Howitzer Motor Carriage T89, (later re-designated the M43 Howitzer Motor Carriage) which was sometimes also equipped with a 155 mm barrel.Hunnicutt - ''Sherman: A History of the American Medium Tank'', p 353-355, 570. A total of 311 out of a planned 600 were completed by the Pressed Steel Car Company before the end of the war, 24 of which were later converted into M43s. Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M40 Rifle
The M40 rifle is a bolt-action sniper rifle used by the United States Marine Corps. It has had four variants: the M40, M40A1, M40A3, and M40A5. The M40 was introduced in 1966. The changeover to the A1 model was completed in the 1970s, the A3 in the 2000s, and the A5 in 2009. Each M40 is built from a Remington Model 700 bolt-action rifle, and is modified by USMC armorers at Marine Corps Base Quantico, using components from a number of suppliers. New M40A5s are being built, and A1s are upgraded to A3s and A5s as they rotate into the armory for service and repair. The rifles have had many sub-variations in telescopic sights, and smaller user modifications. The M40A5 incorporates a detachable magazine and a threaded barrel to allow for the use of a sound suppressor or another muzzle device. The original M40 was a military type-classified version of the Remington 700; it was factory-made, and had a one-piece wooden stock. The M40A1 and A3 switched to fiberglass stocks made by McM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mersenne Prime
In mathematics, a Mersenne prime is a prime number that is one less than a power of two. That is, it is a prime number of the form for some integer . They are named after Marin Mersenne, a French Minim friar, who studied them in the early 17th century. If is a composite number then so is . Therefore, an equivalent definition of the Mersenne primes is that they are the prime numbers of the form for some prime . The exponents which give Mersenne primes are 2, 3, 5, 7, 13, 17, 19, 31, ... and the resulting Mersenne primes are 3, 7, 31, 127, 8191, 131071, 524287, 2147483647, ... . Numbers of the form without the primality requirement may be called Mersenne numbers. Sometimes, however, Mersenne numbers are defined to have the additional requirement that be prime. The smallest composite Mersenne number with prime exponent ''n'' is . Mersenne primes were studied in antiquity because of their close connection to perfect numbers: the Euclid–Euler theorem as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M-40 (Michigan Highway)
M-40 is a north–south state trunkline highway in the Lower Peninsula of the US state of Michigan. The highway runs from US Highway 12 (US 12) near the Indiana state line in Porter Township north through Paw Paw and Allegan to end in the outskirts of Holland. The current northern end is near Interstate 196 (I-196) at an intersection with US 31/ Business Loop I-196 (BL 196). In between, M-40 runs through mixed agricultural and forest lands and along lakes and rivers through Southwest Michigan. The trunkline was designated by July 1, 1919 along with the rest of the original state highway system along a route that is different that of today. South of Paw Paw, the original M-40 reached Niles and even the Indiana state line for a time. The northern end was extended in stages to Holland. The southern end was shifted in the 1970s, resulting in the current routing. Route description M-40 starts at an intersection with US 12 in rural Cass County. Running north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messier 40
The Motorola 68040 ("''sixty-eight-oh-forty''") is a 32-bit microprocessor in the Motorola 68000 series, released in 1990. It is the successor to the 68030 and is followed by the 68060, skipping the 68050. In keeping with general Motorola naming, the 68040 is often referred to as simply the '040 (pronounced ''oh-four-oh'' or ''oh-forty''). The 68040 was the first 680x0 family member with an on-chip Floating-Point Unit (FPU). It thus included all of the functionality that previously required external chips, namely the FPU and Memory Management Unit (MMU), which was added in the 68030. It also had split instruction and data caches of 4 kilobytes each. It was fully pipelined, with six stages. Versions of the 68040 were created for specific market segments, including the 68LC040, which removed the FPU, and the 68EC040, which removed both the FPU and MMU. Motorola had intended the EC variant for embedded use, but embedded processors during the 68040's time did not need the powe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
