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Moto Rumi
The Moto Rumi organisation was formed at the beginning of the twentieth century and originally supplied cast components to the textile machinery industry. At the outbreak of World War II, Rumi became involved in the manufacture of armaments, miniature submarines and torpedoes. After the end of the war in 1950, Rumi decided to get involved in the manufacture of lightweight motorcycles. It was also decided to base the powerplant on the horizontal twin two stroke unit of 125 cc capacity. In 1952, with the popularity of scooters, Rumi started manufacturing the Squirrel or Scoiottolo – a cast aluminum monocoque body with tubular swinging arm rear suspension and teleforks with 14 inch wheels and three gears. Subsequent models had a four speed gearbox and electric starter and were reputed to be the fastest scooters then in production. 1952 In 1952, Rumi was producing the "sports" and "super sport" motorcycle models (single and twin carburettor versions respectively). The "su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bergamo
Bergamo (; lmo, Bèrghem ; from the proto- Germanic elements *''berg +*heim'', the "mountain home") is a city in the alpine Lombardy region of northern Italy, approximately northeast of Milan, and about from Switzerland, the alpine lakes Como and Iseo and 70 km (43 mi) from Garda and Maggiore. The Bergamo Alps (''Alpi Orobie'') begin immediately north of the city. With a population of around 120,000, Bergamo is the fourth-largest city in Lombardy. Bergamo is the seat of the Province of Bergamo, which counts over 1,103,000 residents (2020). The metropolitan area of Bergamo extends beyond the administrative city limits, spanning over a densely urbanized area with slightly less than 500,000 inhabitants. The Bergamo metropolitan area is itself part of the broader Milan metropolitan area, home to over 8 million people. The city of Bergamo is composed of an old walled core, known as ''Città Alta'' ("Upper Town"), nestled within a system of hills, and the modern ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italy
Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical region. Italy is also considered part of Western Europe, and shares land borders with France, Switzerland, Austria, Slovenia and the enclaved microstates of Vatican City and San Marino. It has a territorial exclave in Switzerland, Campione. Italy covers an area of , with a population of over 60 million. It is the third-most populous member state of the European Union, the sixth-most populous country in Europe, and the tenth-largest country in the continent by land area. Italy's capital and largest city is Rome. Italy was the native place of many civilizations such as the Italic peoples and the Etruscans, while due to its central geographic location in Southern Europe and the Mediterranean, the country has also historicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, massa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke Cycle
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of the crankshaft. A four-stroke engine requires four strokes of the piston to complete a power cycle during two crankshaft revolutions. In a two-stroke engine, the end of the combustion stroke and the beginning of the compression stroke happen simultaneously, with the intake and exhaust (or scavenging) functions occurring at the same time. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the power band. Two-stroke engines have fewer moving parts than four-stroke engines. History The first commercial two-stroke engine involving cylinder compression is attributed to Scottish engineer Dugald Clerk, who patented his design in 1881. However, unlike most later two-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear Suspension
Suspension is the system of tires, tire air, springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two. Suspension systems must support both road holding/ handling and ride quality, which are at odds with each other. The tuning of suspensions involves finding the right compromise. It is important for the suspension to keep the road wheel in contact with the road surface as much as possible, because all the road or ground forces acting on the vehicle do so through the contact patches of the tires. The suspension also protects the vehicle itself and any cargo or luggage from damage and wear. The design of front and rear suspension of a car may be different. History An early form of suspension on ox-drawn carts had the platform swing on iron chains attached to the wheeled frame of the carriage. This system remained the basis for most suspension systems until the turn of the 19th century, although the iron c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automobile Self Starter
A starter (also self-starter, cranking motor, or starter motor) is a device used to rotate (crank) an internal-combustion engine so as to initiate the engine's operation under its own power. Starters can be electric, pneumatic, or hydraulic. The starter can also be another internal-combustion engine in the case, for instance, of very large engines, or diesel engines in agricultural or excavation applications. Internal combustion engines are feedback systems, which, once started, rely on the inertia from each cycle to initiate the next cycle. In a four-stroke engine, the third stroke releases energy from the fuel, powering the fourth (exhaust) stroke and also the first two (intake, compression) strokes of the next cycle, as well as powering the engine's external load. To start the first cycle at the beginning of any particular session, the first two strokes must be powered in some other way than from the engine itself. The starter motor is used for this purpose and it is not req ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rumi Formichini At Montlhéry
Jalāl al-Dīn Muḥammad Rūmī ( fa, جلالالدین محمد رومی), also known as Jalāl al-Dīn Muḥammad Balkhī (), Mevlânâ/Mawlānā ( fa, مولانا, lit= our master) and Mevlevî/Mawlawī ( fa, مولوی, lit= my master), but more popularly known simply as Rumi (30 September 1207 – 17 December 1273), was a 13th-century PersianRitter, H.; Bausani, A. "ḎJ̲alāl al-Dīn Rūmī b. Bahāʾ al-Dīn Sulṭān al-ʿulamāʾ Walad b. Ḥusayn b. Aḥmad Ḵh̲aṭībī." Encyclopaedia of Islam. Edited by: P. Bearman, Th. Bianquis, C.E. Bosworth, E. van Donzel and W.P. Heinrichs. Brill, 2007. Brill Online. Excerpt: "known by the sobriquet Mewlānā, persian poet and founder of the Mewlewiyya order of dervishes" poet, Hanafi faqih, Islamic scholar, Maturidi theologian and Sufi mystic originally from Greater Khorasan in Greater Iran. Rumi's influence transcends national borders and ethnic divisions: Iranians, Tajiks, Turks, Greeks, Pashtuns, other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ride Height
Ride height or ground clearance is the amount of space between the base of an automobile tire and the lowest point of the automobile (typically the axle); or, more properly, to the shortest distance between a flat, level surface, and the lowest part of a vehicle other than those parts designed to contact the ground (such as tires, tracks, skis, etc.). Ground clearance is measured with standard vehicle equipment, and for cars, is usually given with no cargo or passengers. Function Ground clearance is a critical factor in several important characteristics of a vehicle. For all vehicles, especially cars, variations in clearance represent a trade-off between handling, ride quality, and practicality. A higher ride height and ground clearance means that the wheels have more vertical room to travel and absorb road shocks. Also, the car is more capable of being driven on roads that are not level, without the scraping against surface obstacles and possibly damaging the chassis and un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compression Ratio
The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it is measured two ways: the static compression ratio, calculated based on the relative volumes of the combustion chamber and the cylinder when the piston is at the bottom of its stroke, and the volume of the combustion chamber when the piston is at the top of its stroke. The dynamic compression ratio is a more advanced calculation which also takes into account gasses entering and exiting the cylinder during the compression phase. Effect and typical ratios A high compression ratio is desirable because it allows an engine to extract more mechanical energy from a given mass of air–fuel mixture due to its higher thermal efficiency. This occurs because internal combustion engines are heat engines, and higher compression ratios permit the same combustion temperature t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autodrome De Linas-Montlhéry
Autodrome de Montlhéry (established 4 October 1924) is a motor racing circuit, officially called L’autodrome de Linas-Montlhéry, owned by Utac, located south-west of the small town of Montlhéry about south of Paris. History Industrialist Alexandre Lamblin hired René Jamin to design the oval shaped track for up to vehicles at . It was initially called Autodrome Parisien, and had especially high banking. A road circuit was added in 1925. The first race there, the 1925 French Grand Prix, was held on 26 July 1925 and organised by The Automobile Club de France Grand Prix. It was a race in which Robert Benoist in a Delage won; Antonio Ascari died in an Alfa Romeo P2. The Grand Prix revisited the track in 1927 and each year between 1931 and 1937. In 1939 the track was sold to the government, deprived of maintenance, and again sold to ''Union technique de l’automobile et du cycle'' (UTAC) in December 1946. The last certification for racing was gained in 2001. Motorc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrome Plating
Chrome plating (less commonly chromium plating) is a technique of electroplating a thin layer of chromium onto a metal object. A chrome-plated item is called ''chrome''. The chromed layer can be decorative, provide corrosion resistance, ease of cleaning, or increase surface hardness. Sometimes, a less expensive imitator of chrome may be used for aesthetic purposes. Process Chrome plating a component typically includes these stages: * Degreasing to remove heavy soiling * Manual cleaning to remove all residual traces of dirt and surface impurities * Various pretreatments depending on the substrate * Placement into the chrome plating vat, where it is allowed to warm to solution temperature * Application of plating current for the required time to attain the desired thickness There are many variations to this process, depending on the type of substrate being plated. Different substrates need different etching solutions, such as hydrochloric, hydrofluoric, and sulfuric acids. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Italian Companies
Italy is a unitary parliamentary republic in Europe with the third largest nominal GDP in the Eurozone and the eighth largest in the world. As an advanced economy the country also has the sixth worldwide national wealth and it is ranked third for its central bank gold reserve. Italy has a very high level of human development and it is sixth in the world for life expectancy. The country plays a prominent role in regional and global economic, military, cultural and diplomatic affairs, and it is both a regional power"'' Operation Alba may be considered one of the most important instances in which Italy has acted as a regional power, taking the lead in executing a technically and politically coherent and determined strategy.''" See Federiga Bindi, ''Italy and the European Union'' (Washington, D.C.: Brookings Institution Press, 2011), p. 171. and a great power. ("''The United States is the sole world's superpower. France, Italy, Germany and the United Kingdom are great powers''") ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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