Spain the Kingdom of Spain, is a country located in Europe. Its continental European territory is situated on the Iberian Peninsula, its territory includes two archipelagoes: the Canary Islands off the coast of Africa, the Balearic Islands in the Mediterranean Sea. The African enclaves of Ceuta, Peñón de Vélez de la Gomera make Spain the only European country to have a physical border with an African country. Several small islands in the Alboran Sea are part of Spanish territory; the country's mainland is bordered to the south and east by the Mediterranean Sea except for a small land boundary with Gibraltar. With an area of 505,990 km2, Spain is the largest country in Southern Europe, the second largest country in Western Europe and the European Union, the fourth largest country in the European continent. By population, Spain is the fifth in the European Union. Spain's capital and largest city is Madrid. Modern humans first arrived in the Iberian Peninsula around 35,000 years ago. Iberian cultures along with ancient Phoenician, Greek and Carthaginian settlements developed on the peninsula until it came under Roman rule around 200 BCE, after which the region was named Hispania, based on the earlier Phoenician name Spn or Spania.
At the end of the Western Roman Empire the Germanic tribal confederations migrated from Central Europe, invaded the Iberian peninsula and established independent realms in its western provinces, including the Suebi and Vandals. The Visigoths would forcibly integrate all remaining independent territories in the peninsula, including Byzantine provinces, into the Kingdom of Toledo, which more or less unified politically and all the former Roman provinces or successor kingdoms of what was documented as Hispania. In the early eighth century the Visigothic Kingdom fell to the Moors of the Umayyad Islamic Caliphate, who arrived to rule most of the peninsula in the year 726, leaving only a handful of small Christian realms in the north and lasting up to seven centuries in the Kingdom of Granada; this led to many wars during a long reconquering period across the Iberian Peninsula, which led to the creation of the Kingdom of Leon, Kingdom of Castile, Kingdom of Aragon and Kingdom of Navarre as the main Christian kingdoms to face the invasion.
Following the Moorish conquest, Europeans began a gradual process of retaking the region known as the Reconquista, which by the late 15th century culminated in the emergence of Spain as a unified country under the Catholic Monarchs. Until Aragon had been an independent kingdom, which had expanded toward the eastern Mediterranean, incorporating Sicily and Naples, had competed with Genoa and Venice. In the early modern period, Spain became the world's first global empire and the most powerful country in the world, leaving a large cultural and linguistic legacy that includes more than 570 million Hispanophones, making Spanish the world's second-most spoken native language, after Mandarin Chinese. During the Golden Age there were many advancements in the arts, with world-famous painters such as Diego Velázquez; the most famous Spanish literary work, Don Quixote, was published during the Golden Age. Spain hosts the world's third-largest number of UNESCO World Heritage Sites. Spain is a secular parliamentary democracy and a parliamentary monarchy, with King Felipe VI as head of state.
It is a major developed country and a high income country, with the world's fourteenth largest economy by nominal GDP and sixteenth largest by purchasing power parity. It is a member of the United Nations, the European Union, the Eurozone, the Council of Europe, the Organization of Ibero-American States, the Union for the Mediterranean, the North Atlantic Treaty Organization, the Organisation for Economic Co-operation and Development, Organization for Security and Co-operation in Europe, the Schengen Area, the World Trade Organization and many other international organisations. While not an official member, Spain has a "Permanent Invitation" to the G20 summits, participating in every summit, which makes Spain a de facto member of the group; the origins of the Roman name Hispania, from which the modern name España was derived, are uncertain due to inadequate evidence, although it is documented that the Phoenicians and Carthaginians referred to the region as Spania, therefore the most accepted etymology is a Semitic-Phoenician one.
Down the centuries there have been a number of accounts and hypotheses: The Renaissance scholar Antonio de Nebrija proposed that the word Hispania evolved from the Iberian word Hispalis, meaning "city of the western world". Jesús Luis Cunchillos argues that the root of the term span is the Phoenician word spy, meaning "to forge metals". Therefore, i-spn-ya would mean "the land where metals are forged", it may be a derivation of the Phoenician I-Shpania, meaning "island of rabbits", "land of rabbits" or "edge", a reference to Spain's location at the end of the Mediterranean. The word in question means "Hyrax" due to Phoenicians confusing the two animals. Hispania may derive from the poetic use of the term Hesperia, reflecting the Greek perception of Italy as a "western land" or "land of the setting sun" (Hesperia
Formula One is the highest class of single-seater auto racing sanctioned by the Fédération Internationale de l'Automobile and owned by the Formula One Group. The FIA Formula One World Championship has been one of the premier forms of racing around the world since its inaugural season in 1950; the word "formula" in the name refers to the set of rules to which all participants' cars must conform. A Formula One season consists of a series of races, known as Grands Prix, which take place worldwide on purpose-built circuits and on public roads; the results of each race are evaluated using a points system to determine two annual World Championships: one for drivers, the other for constructors. Drivers must hold valid Super Licences, the highest class of racing licence issued by the FIA; the races must run on tracks graded "1", the highest grade-rating issued by the FIA. Most events occur in rural locations on purpose-built tracks, but several events take place on city streets. Formula One cars are the fastest regulated road-course racing cars in the world, owing to high cornering speeds achieved through the generation of large amounts of aerodynamic downforce.
The cars underwent major changes in 2017, allowing wider front and rear wings, wider tyres, resulting in cornering forces closing in on 6.5g and top speeds of up to 375 km/h. As of 2019 the hybrid engines are limited in performance to a maximum of 15,000 rpm and the cars are dependent on electronics—although traction control and other driving aids have been banned since 2008—and on aerodynamics and tyres. While Europe is the sport's traditional base, the championship operates globally, with 11 of the 21 races in the 2018 season taking place outside Europe. With the annual cost of running a mid-tier team—designing and maintaining cars, transport—being US$120 million, Formula One has a significant economic and job-creation effect, its financial and political battles are reported, its high profile and popularity have created a major merchandising environment, which has resulted in large investments from sponsors and budgets. On 8 September 2016 Bloomberg reported that Liberty Media had agreed to buy Delta Topco, the company that controls Formula One, from private-equity firm CVC Capital Partners for $4.4 billion in cash and convertible debt.
On 23 January 2017 Liberty Media confirmed the completion of the acquisition for $8 billion. The Formula One series originated with the European Grand Prix Motor Racing of the 1930s; the formula is a set of rules. Formula One was a new formula agreed upon after World War II during 1946, with the first non-championship races being held that year. A number of Grand Prix racing organisations had laid out rules for a world championship before the war, but due to the suspension of racing during the conflict, the World Drivers' Championship was not formalised until 1947; the first world championship race was held at Silverstone, United Kingdom in 1950. A championship for constructors followed in 1958. National championships existed in the UK in the 1960s and 1970s. Non-championship Formula One events were held for many years, but due to the increasing cost of competition, the last of these occurred in 1983. On 26 November 2017, Formula One unveiled its new logo, following the 2017 season finale in Abu Dhabi during the Abu Dhabi Grand Prix at Yas Marina Circuit.
The new logo replaced F1's iconic'flying one', the sport's trademark since 1993. After a hiatus in European motor racing brought about by the outbreak of World War II in 1939, the first World Championship for Drivers was won by Italian Giuseppe Farina in his Alfa Romeo in 1950, narrowly defeating his Argentine teammate Juan Manuel Fangio. However, Fangio won the title in 1951, 1954, 1955, 1956, 1957, his streak interrupted by two-time champion Alberto Ascari of Ferrari. Although the UK's Stirling Moss was able to compete he was never able to win the world championship, is now considered to be the greatest driver never to have won the title. Fangio, however, is remembered for dominating Formula One's first decade and has long been considered the "Grand Master" of Formula One; this period featured teams managed by road car manufacturers Alfa Romeo, Mercedes-Benz, Maserati. The first seasons were run using pre-war cars like Alfa's 158, they were front-engined, with narrow tyres and 1.5-litre supercharged or 4.5-litre aspirated engines.
The 1952 and 1953 World Championships were run to Formula Two regulations, for smaller, less powerful cars, due to concerns over the paucity of Formula One cars available. When a new Formula One, for engines limited to 2.5 litres, was reinstated to the world championship for 1954, Mercedes-Benz introduced the advanced W196, which featured innovations such as desmodromic valves and fuel injection as well as enclosed streamlined bodywork. Mercedes drivers won the championship for two years, before the team withdrew from all motorsport in the wake of the 1955 Le Mans disaster. An era of British dominance was ushered in by Mike Hawthorn and Vanwall's championship wins in 1958, although Stirling Moss had been at the forefront of the sport without securing the world title. Between Hawthorn, Jim Clark, Jackie Stewart, John Surtees and Graham Hill, British drivers won nine Drivers' Championships and British teams won fourteen Constructors' Championsh
The axle track in automobiles and other wheeled vehicles which have two or more wheels on an axle, is the distance between the centerline of two roadwheels on the same axle. In a case of the axle with dual wheels, the centerline in the middle of the dual wheel is used for the axle track specification. In a vehicle with two axles, this is expressed as "front track" and "rear track"; however the front wheels and/or rear wheels on either side of a vehicle do not have to be mounted on the same axle for the distance that they are apart to be called the "track". In the case of a rail wheelset the "track" is called "wheel gauge" and is measured from wheel flange reference line to wheel flange reference line wheels of any rail car or tram. Continuous track. Wheelbase – the distance between the front and rear axles Brauer, K.: "All Lined Up Retrieved on 2009-06-04
Michelin is a French tyre manufacturer based in Clermont-Ferrand in the Auvergne région of France. It is the second largest tyre manufacturer in the world after Bridgestone and larger than both Goodyear and Continental. In addition to the Michelin brand, it owns the BFGoodrich, Tigar, Riken and Uniroyal tyre brands. Michelin is notable for its Red and Green travel guides, its roadmaps, the Michelin stars that the Red Guide awards to restaurants for their cooking, for its company mascot Bibendum, colloquially known as the Michelin Man. Michelin's numerous inventions include the pneurail and the radial tyre. Michelin manufactures tyres for space shuttles, automobiles, heavy equipment and bicycles. In 2012, the Group produced 166 million tyres at 69 facilities located in 18 countries. In 1889 two brothers, Édouard Michelin and André Michelin, ran a rubber factory in Clermont-Ferrand, France. One day, a cyclist turned up at the factory; the tyre was glued to the rim, it took over three hours to remove and repair the tyre, which needed to be left overnight to dry.
The next day, Édouard Michelin took the repaired bicycle into the factory yard to test. After only a few hundred metres, the tyre failed. Despite the setback, Édouard was enthusiastic about the pneumatic tyre, he and his brother worked on creating their own version, one that did not need to be glued to the rim. Michelin was incorporated on 28 May 1889. In 1891 Michelin took out its first patent for a removable pneumatic tyre, used by Charles Terront to win the world's first long distance cycle race, the 1891 Paris–Brest–Paris. In the 1920s and 1930s, Michelin operated large rubber plantations in Vietnam. Conditions at these plantations led to the famous labour movement Phu Rieng Do. In 1934, Michelin introduced a tyre which, if punctured, would run on a special foam lining, a design now known as a run-flat tyre. Michelin developed and patented a key innovation in tyre history, the 1946 radial tyre, exploited this technological innovation to become one of the worlds leading tyre manufacturers; the radial was marketed as the "X" tyre.
It was developed with Citroën 2CV in mind. Michelin had bought the then-bankrupt Citroën in the 1930s; because of its superiority in handling and fuel economy, use of this tyre spread throughout Europe and Asia. In the U. S. the outdated bias-ply tyre persisted, with market share of 87% in 1967. In 1966, Michelin partnered with Sears to produce radial tyres under the Allstate brand and was selling 1 million units annually by 1970. In 1968, Michelin opened its first North American sales office, was able to grow that market for its products rapidly. In 1968, Consumer Reports, an influential American magazine, acknowledged the superiority of the radial construction, setting off a rapid decline in Michelin's competitor technology. In the U. S. the radial tyre now has a market share of 100%. In addition to the private label and replacement tyre market, Michelin scored an early OEM tyre win in North America, when it received the contract for the 1970 Continental Mark III, the first American car with radial tyres fitted as standard.
In 1989, Michelin acquired the merged tyre and rubber manufacturing divisions of the American firms B. F. Goodrich Company and Uniroyal, Inc. from Clayton, Dubilier & Rice. Uniroyal Australia had been bought by Bridgestone in 1980; this purchase included the Norwood, North Carolina manufacturing plant which supplied tyres to the U. S. Space Shuttle Program. Michelin controls 90% of Taurus Tyre in Hungary, as well as Kormoran, a Polish brand; as of 1 September 2008, Michelin is again the world's largest tyre manufacturer after spending two years as number two behind Bridgestone. Michelin produces tyres in France, Spain, the USA, the UK, Brazil, Japan and several other countries. On 15 January 2010, Michelin announced the closing of its Ota, Japan plant, which employs 380 workers and makes the Michelin X-Ice tyre. Production of the X-Ice will be moved to Europe, North America, elsewhere in Asia. Michelin participated in MotoGP from 1972 to 2008, they introduced radial construction to MotoGP in 1984, multi-compound tyres in 1994.
They achieved 360 victories in 36 years, from 1993 to 2006, the world championship had gone to a rider on Michelins. In 2007, Casey Stoner on Bridgestone tyres won the world championship in dominating fashion, Valentino Rossi and other top riders complained that Michelins were inferior. Rossi wanted Bridgestones for the 2008 season. In 2008, Michelin committed errors of judgment in allocating adequate tyres for some of the race weekends. Dani Pedrosa's team switched to Bridgestones in the midst of the season, a unusual move that caused friction between Honda Racing Corporation and their sponsor Repsol YPF. Other riders expressed concerns and it seemed that Michelin might not have any factory riders for the 2009 season, leading to rumours that Michelin would withdraw from the series altogether. Dorna and the FIM announced that a control tyre would be imposed on MotoGP for the 2009 season and Michelin did not enter a bid ending its participation in the series at the end of 2008. Mi
A manual transmission known as a manual gearbox, a standard transmission or colloquially in some countries as a stick shift, is a type of transmission used in motor vehicle applications. It uses a driver-operated clutch engaged and disengaged by a foot pedal or hand lever, for regulating torque transfer from the engine to the transmission. A conventional 5-speed manual transmission is the standard equipment in a base-model vehicle, while more expensive manual vehicles are equipped with a 6-speed transmission instead; the number of forward gear ratios is expressed for automatic transmissions as well. Manual transmissions feature a driver-operated clutch and a movable gear stick. Most automobile manual transmissions allow the driver to select any forward gear ratio at any time, but some, such as those mounted on motorcycles and some types of racing cars, only allow the driver to select the next-higher or next-lower gear; this type of transmission is sometimes called a sequential manual transmission.
In a manual transmission, the flywheel is attached to the engine's crankshaft and spins along with it. The clutch disc is in between the pressure plate and the flywheel, is held against the flywheel under pressure from the pressure plate; when the engine is running and the clutch is engaged, the flywheel spins the clutch plate and hence the transmission. As the clutch pedal is depressed, the throw out bearing is activated, which causes the pressure plate to stop applying pressure to the clutch disk; this makes the clutch plate stop receiving power from the engine, so that the gear can be shifted without damaging the transmission. When the clutch pedal is released, the throw out bearing is deactivated, the clutch disk is again held against the flywheel, allowing it to start receiving power from the engine. Manual transmissions are characterized by gear ratios that are selectable by locking selected gear pairs to the output shaft inside the transmission. Conversely, most automatic transmissions feature epicyclic gearing controlled by brake bands and/or clutch packs to select gear ratio.
Automatic transmissions that allow the driver to manually select the current gear are called manumatics. A manual-style transmission operated by computer is called an automated transmission rather than an automatic though no distinction between the two terms need be made. Contemporary automobile manual transmissions use four to six forward gear ratios and one reverse gear, although consumer automobile manual transmissions have been built with as few as two and as many as seven gears. Transmissions for heavy trucks and other heavy equipment have 8 to 25 gears so the transmission can offer both a wide range of gears and close gear ratios to keep the engine running in the power band. Operating aforementioned transmissions use the same pattern of shifter movement with a single or multiple switches to engage the next sequence of gear selection. French inventors Louis-Rene Panhard and Emile Levassor are credited with the development of the first modern manual transmission, they demonstrated their three-speed transmission in 1894 and the basic design is still the starting point for most contemporary manual transmissions.
This type of transmission offered multiple gear ratios and, in most cases, reverse. The gears were engaged by sliding them on their shafts, which required careful timing and throttle manipulation when shifting, so the gears would be spinning at the same speed when engaged; these transmissions are called sliding mesh transmissions or sometimes crash boxes, because of the difficulty in changing gears and the loud grinding sound that accompanied. Newer manual transmissions on 4+-wheeled vehicles have all gears mesh at all times and are referred to as constant-mesh transmissions, with "synchro-mesh" being a further refinement of the constant mesh principle. In both types, a particular gear combination can only be engaged when the two parts to engage are at the same speed. To shift to a higher gear, the transmission is put in neutral and the engine allowed to slow down until the transmission parts for the next gear are at a proper speed to engage; the vehicle slows while in neutral and that slows other transmission parts, so the time in neutral depends on the grade and other such factors.
To shift to a lower gear, the transmission is put in neutral and the throttle is used to speed up the engine and thus the relevant transmission parts, to match speeds for engaging the next lower gear. For both upshifts and downshifts, the clutch is released; some drivers use the clutch only for starting from a stop, shifts are done without the clutch. Other drivers will depress the clutch, shift to neutral engage the clutch momentarily to force transmission parts to match the engine speed depress the clutch again to shift to the next gear, a process called double clutching. Double clutching is easier to get smooth, as speeds that are close but not quite matched need to speed up or slow down only transmission parts, whereas with the clutch engaged to the engine, mismatched speeds are fighting the rotational inertia and power of the engine. Though automobile and light truck transmissions are now universally synchronized, transmissions for heavy trucks and machinery, motor
In automotive engineering, a longitudinal engine is an internal combustion engine in which the crankshaft is oriented along the long axis of the vehicle, front to back. This type of motor is used for rear-wheel drive cars, except for some Audi and SAAB models equipped with longitudinal engines in front wheel drive. In front-wheel drive cars a transverse engine is used. Trucks have longitudinal engines with rear-wheel drive. For motorcycles, the use of a particular type depends on the drive: in case of a chain or belt drive a transverse engine is used, with shaft drives a longitudinal engine. Longitudinal engines in motorcycles do have one disadvantage: the "tipping point" of the crankshaft tilts along the entire motorcycle to a greater or lesser degree when accelerating; this is resolved by having other components, such as the generator and the gearbox, rotate in the opposite direction to the crankshaft. Most larger, "premium" vehicles use this engine orientation, both front and rear wheel driven, because powerful engines such as the inline-6 and 90° big-bore V8 are too long to fit in a FF transverse engine bay, while most mainstream modern vehicles use front wheel drive along with a transverse engine arrangement.
Cars with longitudinal engines have a smaller minimum turning circle than those with transverse engines. This is because there is more space to the sides of the engine, allowing deeper wheel arches so the front wheels are able to turn through a greater angle; this is a list of typical examples of types of engines which can be placed in motor vehicles: in-line or straight engine — where two, four, five and eight cylinders are placed in a single plane. V engine — where two, six, ten, twelve, or sixteen cylinders are placed in two separate planes, looking like a "V" when viewed from the end of the crankshaft. Flat or boxer engine — where two, six or more cylinders are arranged in two diametrically horizontally opposed planes. W engine — where two vee engines are siamesed together, where at eight, twelve or sixteen cylinders are arranged in four separate planes
Monocoque structural skin, is a structural system where loads are supported through an object's external skin, similar to an egg shell. The word monocoque is a French term for "single shell" or "single hull". First used in boats, a true monocoque carries both tensile and compressive forces within the skin and can be recognised by the absence of a load-carrying internal frame. Few metal aircraft can be regarded as pure monocoques, as they use a metal shell or sheeting reinforced with frames riveted to the skin, but most of the wooden aircraft are described as monocoques though they incorporate frames. By contrast, a semi-monocoque is a hybrid combining a tensile stressed skin and a compressive structure made up of longerons and ribs or frames. Other semi-monocoques, not to be confused with true monocoques, include vehicle unibodies, which tend to be composites, inflatable shells or balloon tanks, both of which are pressure stabilised; the term is misused as a marketing term for structures built up from hollow components.
Early aircraft were constructed using frames of wood or steel tubing, which could be covered with fabric such as Irish linen or cotton. The fabric made a minor structural contribution in tension but none in compression and was there for aerodynamic reasons only. By considering the structure as a whole and not just the sum of its parts, monocoque construction integrated the skin and frame into a single load-bearing shell with significant improvements to strength and weight. To make the shell, thin strips of wood were laminated into a three dimensional shape. One of the earliest examples was the Deperdussin Monocoque racer in 1912, which used a laminated fuselage made up of three layers of glued poplar veneer, which provided both the external skin and the main load-bearing structure; this produced a smoother surface and reduced drag so that it was able to win most of the races it was entered into. This style of construction was further developed in Germany by LFG Roland using the patented Wickelrumpf form licensed by them to Pfalz Flugzeugwerke who used it on several fighter aircraft.
Each half of the fuselage shell was formed over a male mold using two layers of plywood strips with fabric wrapping between them. The early plywood used was prone to damage from delamination. While all-metal aircraft such as the Junkers J 1 had appeared as early as 1915, these were not monocoques but added a metal skin to an underlying framework; the first metal monocoques were built by Claudius Dornier. He had to overcome a number of problems, not least was the quality of aluminium alloys strong enough to use as structural materials, which formed layers instead of presenting a uniform material. After failed attempts with several large flying boats in which a few components were monocoques, he built the Zeppelin-Lindau V1 to test out a monocoque fuselage. Although it crashed, he learned a lot from its construction; the Dornier-Zeppelin D. I was built in 1918 and although too late for operational service during the war was the first all metal monocoque aircraft to enter production. In parallel to Dornier, Zeppelin employed Adolf Rohrbach, who built the Zeppelin-Staaken E-4/20, which when it flew in 1920 became the first multi-engined monocoque airliner, before being destroyed under orders of the Inter-Allied Commission.
At the end of WWI, the Inter-Allied Technical Commission published details of the last Zeppelin-Lindau flying boat showing its monocoque construction. In the UK, Oswald Short built a number of experimental aircraft with metal monocoque fuselages starting with the 1920 Short Silver Streak in an attempt to convince the air ministry of its superiority over wood. Despite advantages, aluminium alloy monocoques would not become common until the mid 1930s as a result of a number of factors, including design conservatism and production setup costs. Short would prove the merits of the construction method with a series of flying boats, whose metal hulls didn't absorb water as the wooden hulls did improving performance. In the United States, Northrop was a major pioneer, introducing techniques used by his own company and Douglas with the Northrop Alpha. In motor racing, the safety of the driver depends on the car body which must meet stringent regulations and only a few cars have been built with monocoque structures.
An aluminum alloy monocoque chassis was first used in the 1962 Lotus 25 Formula 1 race car and McLaren was the first to use carbon-fiber-reinforced polymers to construct the monocoque of the 1981 McLaren MP4/1. In 1992 the McLaren F1 became the first production car with a carbon-fiber monocoque; the term monocoque is misapplied to unibody cars. Commercial car bodies are never true monocoques but instead use the unibody system, which uses box sections and tubes to provide most of the strength of the vehicle, while the skin adds little strength or stiffness; some armoured fighting vehicles use a monocoque structure with a body shell built up from armour plates, rather than attaching them to a frame. This reduces weight for a given amount of armour. Examples include the German TPz Fuchs and RG-33. French industrialist and engineer Georges Roy attempted in the 1920s to improve on the bicycle-inspired motorcycle frames of the day, which lacked rigidity; this limited their handling and therefore performance.
He applied for a patent in 1926, at the 1929 Paris Automotive Show unveiled his new motorcycle, the Art-Deco styled 1930 Majestic. Its new type of monocoque body solved the p