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Opel Laubfrosch
The Opel 4 PS, popularly known as the Laubfrosch ( treefrog), is a small two-seater car introduced by the auto maker Opel early in 1924. Subsequently, various versions of the little Laubfrosch were produced until it was replaced by the Opel 1.2 litre. Initially introduced as the Opel 4/12 PS, and manufactured at Opel's Rüsselsheim plant, this was the first German car to be assembled on a Ford inspired production line. It was aimed at the lower end of the German auto market, and clearly intended, by the standards of the day, for volume production: it sold well, with 119,484 produced by the time Laubfrosch production ended in June 1931. The name The official name referred to the fact that the car's engine size gave it a 4 tax horsepower ''(Steuer-PS)'' rating. Where a two figure name is used, as in 4/12, the second number is the claimed actual horsepower. The origins of the Laubfrosch soubriquet are not entirely clear, but may refer to the fact that Opel painted all the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opel
Opel Automobile GmbH (), usually shortened to Opel, is a German automobile manufacturer which has been a subsidiary of Stellantis since 16 January 2021. It was owned by the American automaker General Motors from 1929 until 2017 and the PSA Group prior to its merger with Fiat Chrysler Automobiles to form Stellantis in 2021. Most of the Opel lineup is marketed under the Vauxhall Motors, Vauxhall brand in the United Kingdom since the 1980s. Some Opel vehicles were badge engineering, badge-engineered in Australia under the Holden brand until 2020, in North America and China under the Buick, Saturn Corporation, Saturn (until 2010), and Cadillac brands, and in South America under the Chevrolet brand. Opel traces its roots to a sewing machine manufacturer founded by Adam Opel in 1862 in Rüsselsheim am Main. The company began manufacturing bicycles in 1886 and produced its first automobile in 1899. With the Opel RAK program, the world's first rocket program, under the leadership of F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermosiphon
A thermosiphon (or thermosyphon) is a device that employs a method of passive heat transfer, heat exchange based on natural convection, which circulates a fluid without the necessity of a mechanical pump. Thermosiphoning is used for circulation of liquids and volatile gases in heating and cooling applications such as heat pumps, water heaters, boilers and furnaces. Thermosiphoning also occurs across air temperature gradients such as those occurring in a wood-fire chimney or solar chimney. This circulation can either be open-loop, as when the substance in a holding tank is passed in one direction via a heated transfer tube mounted at the bottom of the tank to a distribution point — even one mounted above the originating tank — or it can be a vertical closed-loop circuit with return to the original container. Its purpose is to simplify the transfer of liquid or gas while avoiding the cost and complexity of a conventional pump. Simple thermosiphon Natural convection of the liq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1930s Cars
Year 193 ( CXCIII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius (or, less frequently, year 946 ''Ab urbe condita''). The denomination 193 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 1 – Year of the Five Emperors: The Roman Senate chooses Publius Helvius Pertinax, against his will, to succeed the late Commodus as Emperor. Pertinax is forced to reorganize the handling of finances, which were wrecked under Commodus, to reestablish discipline in the Roman army, and to suspend the food programs established by Trajan, provoking the ire of the Praetorian Guard. * March 28 – Pertinax is assassinated by members of the Praetorian Guard, who storm the imperial palace. The Empire is auctioned off; Marcus Didius Julianus the highest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cars Introduced In 1924
A car, or an automobile, is a motor vehicle with wheels. Most definitions of cars state that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people rather than cargo. There are around one billion cars in use worldwide. The French inventor Nicolas-Joseph Cugnot built the first steam-powered road vehicle in 1769, while the Swiss inventor François Isaac de Rivaz designed and constructed the first internal combustion-powered automobile in 1808. The modern car—a practical, marketable automobile for everyday use—was invented in 1886, when the German inventor Carl Benz patented his Benz Patent-Motorwagen. Commercial cars became widely available during the 20th century. The 1901 Oldsmobile Curved Dash and the 1908 Ford Model T, both American cars, are widely considered the first mass-produced and mass-affordable cars, respectively. Cars were rapidly adopted in the US, where they replaced horse-drawn carriages. In Europe and other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedans
A sedan (American English) or saloon (British English) is a passenger car in a three-box configuration with separate compartments for an engine, passengers, and cargo. The first recorded use of ''sedan'' in reference to an automobile body occurred in 1912. The name derives from the 17th-century litter known as a sedan chair, a one-person enclosed box with windows and carried by porters. Variations of the sedan style include the close-coupled sedan, club sedan, convertible sedan, fastback sedan, hardtop sedan, notchback sedan, and sedanet. Definition A sedan () is a car with a closed body (i.e., a fixed metal roof) with the engine, passengers, and cargo in separate compartments. This broad definition does not differentiate sedans from various other car body styles. Still, in practice, the typical characteristics of sedans are: * a B-pillar (between the front and rear windows) that supports the roof; * two rows of seats; * a three-box design with the engine at the front and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convertibles
A convertible or cabriolet () is a passenger car that can be driven with or without a roof in place. The methods of retracting and storing the roof vary across eras and manufacturers. A convertible car's design allows an open-air driving experience, with the ability to provide a roof when required. A potential drawback of convertibles is their reduced structural rigidity (requiring significant engineering and modification to counteract the side effects of almost completely removing a car's roof). The majority of convertible roofs are of a folding construction framework with the actual top made from cloth or other fabric. Other types of convertible roofs include retractable hardtops (often constructed from metal or plastic) and detachable hardtops (where a metal or plastic roof is manually removed and often stored in the trunk). Terminology Other terms for convertibles include cabriolet, cabrio, drop top, drophead coupé, open two-seater, open top, rag top, soft top, spid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opel Vehicles
Opel Automobile GmbH (), usually shortened to Opel, is a German automobile manufacturer which has been a subsidiary of Stellantis since 16 January 2021. It was owned by the American automaker General Motors from 1929 until 2017 and the PSA Group prior to its merger with Fiat Chrysler Automobiles to form Stellantis in 2021. Most of the Opel lineup is marketed under the Vauxhall Motors, Vauxhall brand in the United Kingdom since the 1980s. Some Opel vehicles were badge engineering, badge-engineered in Australia under the Holden brand until 2020, in North America and China under the Buick, Saturn Corporation, Saturn (until 2010), and Cadillac brands, and in South America under the Chevrolet brand. Opel traces its roots to a sewing machine manufacturer founded by Adam Opel in 1862 in Rüsselsheim am Main. The company began manufacturing bicycles in 1886 and produced its first automobile in 1899. With the Opel RAK program, the world's first rocket program, under the leadership of F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citroën Type A
The Citroën Type A was produced from June 1919 to December 1921 in Paris, France. It was the first car Citroën made. 24,093 were built. Origins During World War I, André Citroën was producing ammunition. As early as 1917, Citroën investigated the development of a light car of the medium range, under the direction of Jules Salomon. The car Under the designation ''10 HP Type A'' the car had a water-cooled 1327 cc four-cylinder engine and an output of . Its maximum speed was 65 km/h (40 mph). The chassis had inverted quarter elliptic springs at the front and double quarter elliptics at the rear. Braking was on the rear wheels only controlled by a hand lever with a foot pedal operated transmission brake. The chassis was made in two lengths and could carry a variety of coachwork. The long chassis was available as Torpedo (four-seat tourer), Torpedo Sport, Conduite Intérieure,Conduite Intérieure = carrosserie entièrement fermée - ie saloon/sedan car body. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
André Citroën
André-Gustave Citroën (; 5 February 1878 – 3 July 1935) was a French industrialist and the founder of French automaker Citroën. He is also remembered for his application of double helical gears. Life and career Born in Paris in 1878, André-Gustave Citroen was the fifth and last child of Jewish parents, diamond merchant Levie Citroen and Masza Amelia Kleinman. He was a cousin of the British philosopher Sir A. J. Ayer (the only son of his aunt Reine). The Citroen family descended from a grandfather in the Netherlands who had been a greengrocer and seller of tropical fruit, and had taken the surname of , Dutch for "lime man"; his son however changed it to (), which in Dutch means "lemon". In 1873 the family moved to Paris; upon arrival, the French was added to the surname (reputedly by one of André's teachers), changing to . His father died by suicide when André was six years old (presumably after failure in a business venture in a diamond mine in South Africa). It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Motors
General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. The company is most known for owning and manufacturing four automobile brands: Chevrolet, Buick, GMC (marque), GMC, and Cadillac, each a separate division of GM. By total sales, it has continuously been the largest automaker in the United States, and was the List of manufacturers by motor vehicle production, largest in the world for 77 years before losing the top spot to Toyota in 2008. General Motors operates manufacturing plants in eight countries. In addition to its four core brands, GM also holds interests in Chinese brands Baojun and SAIC-GM-Wuling, Wuling via SAIC-GM-Wuling, SAIC-GM-Wuling Automobile. GM further owns GM Defense, a namesake defense vehicles division which produces military vehicles for the United States government and military, the vehicle safety, security, and information ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflation Adjustment
In economics, nominal value refers to value measured in terms of absolute money amounts, whereas real value is considered and measured against the actual goods or services for which it can be exchanged at a given time. Real value takes into account inflation and the value of an asset in relation to its purchasing power. In macroeconomics, the real gross domestic product compensates for inflation so economists can exclude inflation from growth figures, and see how much an economy actually grows. Nominal GDP would include inflation, and thus be higher. Commodity bundles, price indices and inflation A commodity bundle is a sample of goods, which is used to represent the sum total of goods across the economy to which the goods belong, for the purpose of comparison across different times (or locations). At a single point of time, a commodity bundle consists of a list of goods, and each good in the list has a market price and a quantity. The market value of the good is the market ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Rentenmark
The Rentenmark (; RM) was a currency issued on 15 November 1923 to stop the hyperinflation of 1922 and 1923 in Weimar Germany, after the previously used Papiermark had become almost worthless. It was subdivided into 100 ''Rentenpfennig'' and was replaced in 1924 by the Reichsmark. History After the Occupation of the Ruhr in early 1923 by French and Belgian troops, referred to as the ''Ruhrkampf'', the German government of Wilhelm Cuno reacted by announcing a policy of passive resistance. This caused the regional economy of the Ruhr, the industrial heartland of Germany, to almost stop. The occupation authorities reacted to strikes and sabotage with arrests and deportations. Those displaced and left without income by the ''Ruhrkampf'' and their families fell back on public income support. Tax revenues plunged as economic activity slowed. The government covered its need for funds mainly by printing money. As a result, inflation spiked and the Papiermark went into freefall on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
