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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 Motor Company, Ford inspired Mass production, production production line, 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#Germany, 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 n ... [...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, a predecessor of Stellantis, from 2017 until 2021. Opel vehicles are sold in the United Kingdom as Vauxhall Motors, Vauxhall. Some Opel vehicles were badge engineering, badge-engineered in Australia under the Holden brand until 2020 and in North America and China under the Buick, Saturn Corporation, Saturn, and Cadillac brands. 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 Fritz von Opel, the company played an important role in the history of aviation and spaceflight: Various land speed records were a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermosiphon
Thermosiphon (or thermosyphon) is a method of passive 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 utilized 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 liquid starts when heat transfer to the liquid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1930s Cars
Year 193 ( CXCIII) was a common year starting on Monday (link will display the full calendar) 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cars Introduced In 1924
A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarded as the birth year of the car, when German inventor Carl Benz patented his Benz Patent-Motorwagen. Cars became widely available during the 20th century. One of the first cars affordable by the masses was the 1908 Model T, an American car manufactured by the Ford Motor Company. Cars were rapidly adopted in the US, where they replaced animal-drawn carriages and carts. In Europe and other parts of the world, demand for automobiles did not increase until after World War II. The car is considered an essential part of the developed economy. Cars have controls for driving, parking, passenger comfort, and a variety of lights. Over the decades, additional features and controls have been added to vehicles, making them progressively more complex. These i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedans
A sedan 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 the word "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/sedanette. 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, but 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 the car ... [...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 among 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 effects of 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, spider, and spyder. Consistenc ... [...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, a predecessor of Stellantis, from 2017 until 2021. Opel vehicles are sold in the United Kingdom as Vauxhall. Some Opel vehicles were badge-engineered in Australia under the Holden brand until 2020 and in North America and China under the Buick, Saturn, and Cadillac brands. 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 Fritz von Opel, the company played an important role in the history of aviation and spaceflight: Various land speed records were achieved, and the world's first rocket-powered flight ... [...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 remembered chiefly for the make of car named after him, but also for his application of double helical gears. Life and career Born in Paris in 1878, André-Gustave Citroën was the fifth and last child of Jewish parents, diamond merchant Levie Citroën and Masza Amelia Kleinman. He was a cousin of the British philosopher Sir A. J. Ayer (the only son of his aunt Reine). The Citroën family moved to Paris in 1873. Upon arrival, the French ''tréma'' was added to the Dutch surname (reputedly by one of André's teachers), changing Citroen to Citroën. Citroen comes from a grandfather in the Netherlands who had been a greengrocer and seller of tropical fruit, and had taken the surname of ''Limoenman'', Dutch for "lime man"; his son however changed it to ''Citroen'', which in Dutch means "lemon". His father died by suicide when André was six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Motors
The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and was the largest in the world for 77 years before losing the top spot to Toyota in 2008. General Motors operates manufacturing plants in eight countries. Its four core automobile brands are Chevrolet, Buick, GMC (automobile), GMC, and Cadillac. It also holds interests in Chinese brands Wuling Motors and Baojun as well as DMAX (engines), DMAX via joint ventures. Additionally, GM also owns the BrightDrop delivery vehicle manufacturer, GM Defense, a namesake Defense vehicles division which produces military vehicles for the United States government and military; the vehicle safety, security, and information services provider OnStar; the auto parts company ACDelco, a GM Financial, namesake financial lending service; and majority ownership in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflation Adjustment
In economics, nominal value is measured in terms of money, whereas real value is measured against goods or services. A real value is one which has been adjusted for inflation, enabling comparison of quantities as if the prices of goods had not changed on average; therefore, changes in real value exclude the effect of inflation. In contrast, a nominal value has not been adjusted for inflation, and so changes in nominal value reflect at least in part the effect of inflation but will not hold the same purchasing power. 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 price times the quantity at that poin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Rentenmark
The Rentenmark (; RM) was a currency issued on 15 October 1923 to stop the hyperinflation of 1922 and 1923 in Weimar Germany, after the previously used "paper" Mark 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 the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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