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Véronique (rocket)
Véronique was a French liquid-fuelled sounding rocket of the 1950s. It was the first liquid-fuel research rocket in Western Europe. Véronique was a French-led project that had its roots in the German V-2 rocket, and was partially developed by German scientists who had worked in Peenemünde. It was a successor to the cancelled Super V-2, the Véronique was built between 1950 and 1969 in several versions, of which the versions P2, P6 and R were only experimental models. They were made in Vernon, Eure. The name Veronique is a portmanteau of ''Vernon-électronique'', and is also a common French first name. On 20 February 1959, the first Véronique launch was performed, although it was recorded as a failure. One day later, the second launch took place, which attained an altitude of . The last Veronique-61 was launched on 31 May 1974. The programme was eclipsed by new rockets, such as the wholly indigenous Diamant launcher. History Background In the immediate aftermath of the Second ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algeria
) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , religion = , official_languages = , languages_type = Other languages , languages = Algerian Arabic (Darja) French , ethnic_groups = , demonym = Algerian , government_type = Unitary semi-presidential republic , leader_title1 = President , leader_name1 = Abdelmadjid Tebboune , leader_title2 = Prime Minister , leader_name2 = Aymen Benabderrahmane , leader_title3 = Council President , leader_name3 = Salah Goudjil , leader_title4 = Assembly President , leader_name4 = Ibrahim Boughali , legislature = Parliament , upper_house = Council of the Nation , lower_house ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sounding Rockets Of France
Sounding or soundings may refer to: *Sounding (archaeology), a test dig in archaeology * "Sounding" (''Justified''), an episode of the TV series ''Justified'' * ''Soundings'' (journal), an academic journal of leftist political thinking * ''Soundings'' (radio drama), science fiction radio drama series produced from 1985 to 1989 in Ottawa * ''Soundings'' (Williams), 2003 orchestral composition by John Williams * ''Soundings'' (Carter), 2005 orchestral composition by Elliott Carter *Sound (medical instrument), instruments for probing and dilating passages within the body **Urethral sounding, using sounds to increase the inner diameter of the urethra *Depth sounding, a measurement of depth within a body of water *Whale sounding, the act of diving by whales See also *Sound (other) *Sonde (other) * * *Sonar, use of sound propagation to navigate, communicate with or detect objects on or under water *Remote sensing, acquisition of information about an object or phenomen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Space Program
The French space program includes both commercial spaceflight, civil and military spaceflight activities. It is the third oldest national space program in the world, after the Soviet space program, Soviet (now Roscosmos, Russian) and Space policy of the United States, American space programs, and the largest space program in Europe. Background Space travel has long been a significant ambition in French culture. From the Gobelins Manufactory, Gobelins' 1664 tapestry representing a space rocket, to Jules Verne's 1865 novel ''From the Earth to the Moon'' and George Méliès' 1902 film ''A Trip to the Moon'', space and rocketry were present in French society long before the technological means appeared to allow the development of a space exploration program. During the late 18th century, Jean-François Pilâtre de Rozier, Jacques Charles and the Montgolfier brothers are seen as worldwide precursors and explorers of aeronautics, with the world record altitude then reached by a human a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregate (rocket Family)
The Aggregat series (German for "Aggregate") was a set of ballistic missile designs developed in 1933–1945 by a research program of Nazi Germany's Armed Forces (Wehrmacht). Its greatest success was the A4, more commonly known as the V-2. A1 (1933) The A1 was the first rocket design in the Aggregat series. It was designed in 1933 by Wernher von Braun in a German armed forces research program at Kummersdorf headed by Walter Dornberger. The A1 was the grandfather of most modern rockets. The rocket was long, in diameter, and had a takeoff weight of . The engine, designed by Arthur Rudolph, used a pressure-fed rocket propellant system burning ethanol and liquid oxygen, and produced 2.9 kN (660 lbf) of thrust for 16 seconds. The LOX tank was located within the fuel tank and insulated with a fiberglass material. The rocket was stabilized by a 3 axes gyroscope system in the nose, supplied by Kreiselgeräte G.m.b.H. The rocket could not be rotated for stability as with a b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Expendable Launch System
An expendable launch system (or expendable launch vehicle/ELV) is a launch vehicle that can be launched only once, after which its components are either destroyed during reentry or discarded in space. ELVs typically consist of several rocket stages that are discarded sequentially as their fuel is exhausted and the vehicle gains altitude and speed. As of 2022, most satellites and human spacecraft are currently launched on ELVs. ELVs are simpler in design than reusable launch systems and therefore may have a lower production cost. Furthermore, an ELV can use its entire fuel supply to accelerate its payload, offering greater payloads. ELVs are proven technology in widespread use for many decades. ELVs are usable only once, and therefore have a significantly higher per-launch cost than modern (post-STS) reusable vehicles. Current operators Arianespace China ISRO JAXA Roscosmos United States Several governmental agencies of the United States purchase ELV launches. NASA is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turpentine
Turpentine (which is also called spirit of turpentine, oil of turpentine, terebenthene, terebinthine and (colloquially) turps) is a fluid obtained by the distillation of resin harvested from living trees, mainly pines. Mainly used as a specialized solvent, it is also a source of material for organic syntheses. Turpentine is composed of terpenes, primarily the monoterpenes alpha- and beta-pinene, with lesser amounts of carene, camphene, dipentene, and terpinolene.Kent, James A. ''Riegel's Handbook of Industrial Chemistry'' (Eighth Edition) Van Nostrand Reinhold Company (1983) p.569 Mineral turpentine or other petroleum distillates are used to replace turpentine – although the constituent chemicals are very different. Etymology The word ''turpentine'' derives (via French and Latin), from the Greek word τερεβινθίνη ''terebinthine'', in turn the feminine form (to conform to the feminine gender of the Greek word, which means "resin") of an adjective (τερεβί ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subsidy
A subsidy or government incentive is a form of financial aid or support extended to an economic sector (business, or individual) generally with the aim of promoting economic and social policy. Although commonly extended from the government, the term subsidy can relate to any type of support – for example from NGOs or as implicit subsidies. Subsidies come in various forms including: direct (cash grants, interest-free loans) and indirect (tax breaks, insurance, low-interest loans, accelerated depreciation, rent rebates). Furthermore, they can be broad or narrow, legal or illegal, ethical or unethical. The most common forms of subsidies are those to the producer or the consumer. Producer/production subsidies ensure producers are better off by either supplying market price support, direct support, or payments to factors of production. Consumer/consumption subsidies commonly reduce the price of goods and services to the consumer. For example, in the US at one time it was cheaper to buy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wire-guidance
A wire-guided missile is a missile that is guided by signals sent to it via thin wires connected between the missile and its guidance mechanism, which is located somewhere near the launch site. As the missile flies, the wires are reeled out behind it (command guidance). This guidance system is most commonly used in anti-tank missiles, where its ability to be used in areas of limited line-of-sight make it useful, while the range limit imposed by the length of the wire is not a serious concern. The longest range wire-guided missiles in current use are limited to about . History Electrical wire guidance dates back to the early 20th century with an early example being the Lay Torpedo. A prototype ground-based electrical wire-guided torpedo was built by the Germans during World War II. The pair of deployed German guided air-delivered ordnance designs, the Fritz X and Henschel Hs 293, both used the ''Kehl-Straßburg'' radio guidance system for control. However, because the Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitric Acid
Nitric acid is the inorganic compound with the formula . It is a highly corrosive mineral acid. The compound is colorless, but older samples tend to be yellow cast due to decomposition into oxides of nitrogen. Most commercially available nitric acid has a concentration of 68% in water. When the solution contains more than 86% , it is referred to as ''fuming nitric acid''. Depending on the amount of nitrogen dioxide present, fuming nitric acid is further characterized as red fuming nitric acid at concentrations above 86%, or white fuming nitric acid at concentrations above 95%. Nitric acid is the primary reagent used for nitration – the addition of a nitro group, typically to an organic molecule. While some resulting nitro compounds are shock- and thermally-sensitive explosives, a few are stable enough to be used in munitions and demolition, while others are still more stable and used as pigments in inks and dyes. Nitric acid is also commonly used as a strong oxidizing agen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerosene
Kerosene, paraffin, or lamp oil is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as households. Its name derives from el, κηρός (''keros'') meaning "wax", and was registered as a trademark by Canadian geologist and inventor Abraham Gesner in 1854 before evolving into a generic trademark. It is sometimes spelled kerosine in scientific and industrial usage. The term kerosene is common in much of Argentina, Australia, Canada, India, New Zealand, Nigeria, and the United States, while the term paraffin (or a closely related variant) is used in Chile, eastern Africa, South Africa, Norway, and in the United Kingdom. The term lamp oil, or the equivalent in the local languages, is common in the majority of Asia and the Southeastern United States. Liquid paraffin (called mineral oil in the US) is a more viscous and highly refined product which is used as a laxative. Paraffin wax is a waxy solid extracted from pet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocket Motor
A rocket engine uses stored rocket propellants as the reaction mass for forming a high-speed propulsive jet of fluid, usually high-temperature gas. Rocket engines are reaction engines, producing thrust by ejecting mass rearward, in accordance with Newton's third law. Most rocket engines use the combustion of reactive chemicals to supply the necessary energy, but non-combusting forms such as cold gas thrusters and nuclear thermal rockets also exist. Vehicles propelled by rocket engines are commonly called rockets. Rocket vehicles carry their own oxidiser, unlike most combustion engines, so rocket engines can be used in a vacuum to propel spacecraft and ballistic missiles. Compared to other types of jet engine, rocket engines are the lightest and have the highest thrust, but are the least propellant-efficient (they have the lowest specific impulse). The ideal exhaust is hydrogen, the lightest of all elements, but chemical rockets produce a mix of heavier species, reducing the ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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