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Half-tracks Of Germany
A half-track is a civilian or military vehicle with wheels at the front for steering and continuous tracks at the back to propel the vehicle and carry most of the load. A half-track combines the soft-ground traction of a tank with the handling of a wheeled vehicle. Performance The main advantage of a half-track over a fully-wheeled vehicle is that its tracks reduce the pressure on any given area of the ground by spreading the vehicle's weight over a larger area, giving it greater mobility over soft terrain like mud and snow. A further advantage is that it does not require either the complex steering mechanism of a fully tracked vehicle or skill in tracked steering, relying instead on a familiar steering wheel connected to its front wheels to direct the vehicle; maneuverability is augmented in some cases by track braking tied to the steering wheel. The main disadvantage is the increased maintenance to maintain track tension, and the reduced life span of tracks (up to 10,000&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1931 Citroën Autochenille P17 Croisière Jaune Photo 2
Events January * January 2 – South Dakota native Ernest Lawrence invents the cyclotron, used to accelerate particles to study nuclear physics. * January 4 – German pilot Elly Beinhorn begins her flight to Africa. * January 22 – Sir Isaac Isaacs is sworn in as the first Australian-born Governor-General of Australia. * January 25 – Mohandas Gandhi is again released from imprisonment in India. * January 27 – Pierre Laval forms a government in France. * January 30 – Charlie Chaplin comedy drama film ''City Lights'' receives its public premiere at the Los Angeles Theater with Albert Einstein as guest of honor. Contrary to the current trend in cinema, it is a silent film, but with a score by Chaplin. Critically and commercially successful from the start, it will place consistently in lists of films considered the best of all time. February * February 4 – Soviet leader Joseph Stalin gives a speech calling for rapid industrialization, arguing that only strong indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Revolution
The Russian Revolution was a period of Political revolution (Trotskyism), political and social revolution, social change in Russian Empire, Russia, starting in 1917. This period saw Russia Dissolution of the Russian Empire, abolish its monarchy and adopt a socialist form of government following two successive revolutions and Russian Civil War, a civil war. It can be seen as the precursor for Revolutions of 1917–1923, other revolutions that occurred in the aftermath of World War I, such as the German Revolution of 1918–1919. The Russian Revolution was a key events of the 20th century, key event of the 20th century. The Russian Revolution was inaugurated with the February Revolution in 1917, in the midst of World War I. With the German Empire inflicting defeats on the front, and increasing logistical problems causing shortages of bread and grain, the Russian Army was losing morale, with large scale mutiny looming. Officials were convinced that if Tsar Nicholas II abdicated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery
Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons were developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower. Originally, the word "artillery" referred to any group of soldiers primarily armed with some form of manufactured weapon or armour. Since the introduction of gunpowder and cannon, "artillery" has largely meant cannon, and in contemporary usage, usually refers to Shell (projectile), shell-firing Field gun, guns, howitzers, and Mortar (weapon), mortars (collectively called ''barrel artillery'', ''cannon artil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tractor
A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a Trailer (vehicle), trailer or machinery such as that used in agriculture, mining or construction. Most commonly, the term is used to describe a farm vehicle that provides the power and traction to mechanization, mechanize agricultural tasks, especially (and originally) tillage, and now many more. List of agricultural machinery, Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanised. Etymology The word ''tractor'' was taken from Latin, being the Agent (grammar), agent noun of ''trahere'' "to pull". The first recorded use of the word meaning "an engine or vehicle for pulling wagons or plows" occurred in 1896, from the earlier term "traction engine, traction motor" (1859). National variations In the United Kingdom, UK, Republic of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery Tractor In France Vosges Spring 1915
Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons were developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower. Originally, the word "artillery" referred to any group of soldiers primarily armed with some form of manufactured weapon or armour. Since the introduction of gunpowder and cannon, "artillery" has largely meant cannon, and in contemporary usage, usually refers to Shell (projectile), shell-firing Field gun, guns, howitzers, and Mortar (weapon), mortars (collectively called ''barrel artillery'', ''cannon artil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linn Tractor
The Linn tractor is a heavy duty civilian half-track or crawler tractor invented by Holman Harry Linn (born Holman Harry Flannery). Approximately 2,500 units were built in Morris (town), New York, Morris, New York, USA from 1916 to 1952. Development Prototypes Linn was a native of Maine and in his quest for a better machine to travel rural roads with his dog and pony show equipment gave up on a six-wheel-drive design by 1907 to have Alvin Orlando Lombard, Alvin Lombard, of Waterville, build a machine using the tracks off a Lombard Steam Log Hauler, and underslung gasoline engine and wheels on front. It was equipped with a ship-style cabin with living quarters and able to pull a string of wagons behind as well as supply electric lights for his circus. By 1909 this was replaced because of size with a single rear-tracked machine with standard wheeled front axle; however as Linn had become employed as a salesman, demonstrator and mechanic for Lombard a patent dispute erupted and Linn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circus
A circus is a company of performers who put on diverse entertainment shows that may include clowns, acrobats, trained animals, trapeze acts, musicians, dancers, hoopers, tightrope walkers, jugglers, magicians, ventriloquists, and unicyclists as well as other object manipulation and stunt-oriented artists. The term "circus" also describes the field of performance, training, and community which has followed various formats through its 250-year modern history. Although not the inventor of the medium, Newcastle-under-Lyme born Philip Astley is credited as the father of the modern circus. In 1768, Astley, a skilled equestrian, began performing exhibitions of trick horse riding in an open field called Ha'penny Hatch on the south side of the Thames River, England. In 1770, he hired acrobats, tightrope walkers, jugglers, and a clown to fill in the pauses between the equestrian demonstrations and thus chanced on the format which was later named a "circus". Performances deve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterville, Maine
Waterville is a city in Kennebec County, Maine, United States, on the west bank of the Kennebec River. A college town, the city is home to Colby College, a New England Small College Athletic Conference, NESCAC college, and Thomas College. As of the 2020 United States census, 2020 census the population was 15,828. Along with Augusta, Maine, Augusta, Waterville is one of the principal cities of the Augusta-Waterville, ME Micropolitan Statistical Area. History The area now known as Waterville was once inhabited by the Canibas tribe of the Abenaki people. Called "Taconnet" after Chief Taconnet, the main village was located on the east bank of the Kennebec River at its confluence with the Sebasticook River at what is now Winslow, Maine, Winslow. Known as "Ticonic" by British colonization of the Americas, English settlers, it was burned in 1692 during King William's War, after which the Canibas tribe abandoned the area. Fort Halifax (Maine), Fort Halifax was built by General John Wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alvin Lombard
''Alvin'' (DSV-2) is a crewed deep-ocean research submersible owned by the United States Navy and operated by the Woods Hole Oceanographic Institution (WHOI) of Woods Hole, Massachusetts. The original vehicle was built by General Mills' Electronics Group in Minneapolis, Minnesota. Named to honor the prime mover and creative inspiration for the vehicle, Allyn Vine, ''Alvin'' was commissioned on June 5, 1964. The submersible is launched from the deep submergence support vessel , which is also owned by the U.S. Navy and operated by WHOI. The submersible has made more than 5,200 dives, carrying two scientists and a pilot, observing the lifeforms that must cope with super-pressures and move about in total darkness, as well as exploring the wreck of ''Titanic''. Research conducted by ''Alvin'' has been featured in nearly 2,000 scientific papers. Design ''Alvin'' was designed as a replacement for bathyscaphes and other less maneuverable oceanographic vehicles. Its more nimble desig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lombard Steam Log Hauler
The term Lombard refers to people or things related to Lombardy, a region in northern Italy. History and culture * Lombards, a Germanic tribe * Lombardic language, the Germanic language spoken by the Lombards * Lombards of Sicily, a linguistic minority living in Sicily, southern Italy * Lombard League, a medieval alliance of some 30 cities in Northern Italy * Lombard language, a Gallo-Italic language spoken in Northern Italy and southern Switzerland ** Old Lombard, the form of the Lombard language from the 13th and 14th centuries * Lombardic capitals, a decorative lettering style originally used in medieval manuscripts Businesses * ICICI Lombard, an insurance company in India * Le Lombard (or Editions Lombard), a Belgian comic book publisher * Lombard Bank, a bank in Malta * Lombard North Central, a finance house in the United Kingdom Places ;France * Lombard, Doubs, a commune of the Doubs ''département'' * Lombard, Jura, a commune of the Jura ''département'' ;Un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
