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L2
L2, L2, L02, L II, L.2 or L-2 may refer to: Astronomy * L2 point, second Lagrangian point in a two body orbiting system * L2 Puppis, star which is also known as HD 56096 * Advanced Telescope for High Energy Astrophysics, a proposed X-ray telescope Biology * Haplogroup L2 (mtDNA) in human genetics * ATC code L02 ''Endocrine therapy'', a subgroup of the Anatomical Therapeutic Chemical Classification System * the second lumbar vertebrae of the vertebral column in human anatomy * the second larval stage in the ''Caenorhabditis elegans'' worm development Computing * L2 cache, the Level-2 CPU cache in a computer * Layer 2 of the OSI model, in computer networking * L2 (operating system), or Liedtke 2 (a.k.a. EUMEL/ELAN), a persistent microkernel operating system developed by German computer scientist Jochen Liedtke * L2 (programming language) * ISO/IEC 8859-2 (Latin-2), an 8-bit character encoding Entertainment * L2 (music group), an American pop duo * '' L2: Empuraan'', a 202 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
L2 Point
In celestial mechanics, the Lagrange points (; also Lagrangian points or libration points) are points of equilibrium for small-mass objects under the gravitational influence of two massive orbiting bodies. Mathematically, this involves the solution of the restricted three-body problem. Normally, the two massive bodies exert an unbalanced gravitational force at a point, altering the orbit of whatever is at that point. At the Lagrange points, the gravitational forces of the two large bodies and the centrifugal force balance each other. This can make Lagrange points an excellent location for satellites, as orbit corrections, and hence fuel requirements, needed to maintain the desired orbit are kept at a minimum. For any combination of two orbital bodies, there are five Lagrange points, L1 to L5, all in the orbital plane of the two large bodies. There are five Lagrange points for the Sun–Earth system, and five ''different'' Lagrange points for the Earth–Moon system. L1, L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lumines II
is a 2006 puzzle video game developed by Q Entertainment for the PlayStation Portable (PSP). It was released in November 2006 in the PAL region and North America by Buena Vista Games, and in February 2007 in Japan by Bandai Namco Games. The objective of the game is to move and rotate 2×2 blocks to form colored squares of the same color. Points are awarded to the player when the Time Line erases the colored squares. It serves as a direct sequel to '' Lumines: Puzzle Fusion'', expanding on previous modes from its predecessor and adding new modes such as Mission mode, Skin Edit mode, and Sequencer. ''Lumines II'' utilizes songs from its predecessor and introduces music videos as background skins from Japanese music artists and mainstream American music artists such as New Order, Missy Elliot, and Beck. When developing the game, game producer Tetsuya Mizuguchi intended to make the game have a different atmosphere than its predecessor and wanted to include more songs. Mizuguchi fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GPS Signals
GPS signals are broadcast by Global Positioning System satellites to enable satellite navigation. Using these signals, receivers on or near the Earth's surface can determine their Position, Velocity and Time (PVT). The GPS satellite constellation is operated by the 2nd Space Operations Squadron (2SOPS) of Space Delta 8, United States Space Force. GPS signals include ranging signals, which are used to measure the distance to the satellite, and navigation messages. The navigation messages include ephemeris data which are used both in trilateration to calculate the position of each satellite in orbit and also to provide information about the time and status of the entire satellite constellation, called the almanac. There are four GPS signal specifications designed for civilian use. In order of date of introduction, these are: L1 C/A, L2C, L5 and L1C. L1 C/A is also called the ''legacy signal'' and is broadcast by all currently operational satellites. L2C, L5 and L1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sterling Submachine Gun
The Sterling submachine gun is a British submachine gun (SMG). It was tested by the British Army in 1944–1945, but did not start to replace the Sten until 1953. A successful and reliable design, it remained standard issue in the British Army until 1994, when it began to be replaced by the L85A1, a bullpup assault rifle. History In 1944, the British General Staff issued a specification for a new submachine gun to replace the Sten. It stated that the new weapon should weigh no more than six pounds (2.7 kg), should fire 9×19mm Parabellum ammunition, have a rate of fire of no more than 500 rounds per minute, and be sufficiently accurate to allow five consecutive shots (fired in semi-automatic mode) to be placed inside a one-foot-square (30 cm × 30 cm) target at a distance of . To meet the new requirement, George William Patchett, the chief designer at the Sterling Armaments Company of Dagenham, submitted a sample weapon of new design in early 1944. The fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
L109
The HG 85 (''Hand Granate M1985'') is a round fragmentation hand grenade designed for the Swiss Armed Forces, and is still produced by RUAG Ammotec in Switzerland. HG 85 is the internal designation of the Swiss Army The Swiss Armed Forces (; ; ; ; ) are the military and security force of Switzerland, consisting of land and air service branches. Under the country's militia system, regular soldiers constitute a small part of the military and the rest are ... and replaced the HG 43 from World War II. On detonation, the steel body containing of TNT releases around 1,800 fragments, weighing on average . United Kingdom, UK grenade range safety data suggests the L109 (see-#Variants, Variants ) and by extension all live versions – may represent a danger at ranges up to . It is primarily intended for use during urban warfare, fighting in built-up areas, trench clearing, and wood clearing. It is effective against unprotected personnel up to away, and protected personnel up to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
