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9TP
9TP (code for pl, dziewięciotonowy polski - "9-tonne Polish") was a Polish light tank of early World War II era. A development of the earlier 7TP tank, it was to replace its predecessor in Polish service in 1940. Due to the outbreak of the war, only a limited number of early prototypes and development versions took part in battles of the Invasion of Poland. The name of the tank was coined after World War II, technically the modified 7TP tanks were probably to retain the old designation regardless of the modifications. Alternative names include the "", that is a "reinforced 7TP". Development In the 1930s the Polish Army and the state-owned Państwowe Zakłady Inżynierii (PZInż) corporation worked on numerous modern medium tank designs that were to replace the 7TP as the main tank in Polish service, such as 10TP and 14TP. While 7TP was relatively modern and much superior to its German equivalents, the German Panzer I and Panzer II, it was based on the ageing Vickers 6-Ton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7TP Tank
The 7TP (''siedmiotonowy polski'' - 7-tonne Polish) was a Polish light tank of the Second World War. It was developed from the British Vickers 6-ton. A standard tank of the Polish Army during the 1939 Invasion of Poland, its production did not exceed 150 vehicles. Its chassis was used as the base for the C7P artillery tractor. Design The 7TP was the Polish development of the British Vickers 6-ton Mark E tank licence. Comparing to Vickers, the main new features of 7TP were: a better, more reliable and powerful diesel engine, a 37 mm anti-tank gun, thicker armour (17 mm instead of 13 mm on the front), modified ventilation, the Gundlach tank periscope, and a radio. About 132 tanks were produced between 1935 and the outbreak of the war, plus four iron prototypes. The designation 7TP meant "7 Tonne, Polish" (in fact its weight increased to 9 tonnes after the initial prototype). Although 7TP is often claimed to be the world's first (production) diesel-powered tank, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saurer CT1D
Adolph Saurer AG was a Swiss manufacturer of embroidery and textile machines, trucks and buses under the Saurer and Berna (beginning in 1929) brand names. Based in Arbon, Switzerland, the firm was active between 1903 and 1982. Their vehicles were widely used across mainland Europe, particularly in the interwar period. History In 1853 Franz Saurer (1806–1882) from Veringenstadt, Germany established an iron foundry for household goods near the Swiss town of Sankt Gallen. Eastern Switzerland was a center for both embroidery and embroidery machine development. About 1850 Franz Rittmeyer built the first practical, satin stitch embroidery machine, known as the '' Handstickmaschine''. Several Swiss companies began building and improving these machines, and their heyday lasted from roughly 1865 until the end of the century. Two of Franz Saurer's sons – Anton and Adolf - were aware of this invention, saw an opportunity, and began building hand embroidery machines in their fat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7 TP
7 (seven) is the natural number following 6 and preceding 8. It is the only prime number preceding a cube. As an early prime number in the series of positive integers, the number seven has greatly symbolic associations in religion, mythology, superstition and philosophy. The seven Classical planets resulted in seven being the number of days in a week. It is often considered lucky in Western culture and is often seen as highly symbolic. Unlike Western culture, in Vietnamese culture, the number seven is sometimes considered unlucky. It is the first natural number whose pronunciation contains more than one syllable. Evolution of the Arabic digit In the beginning, Indians wrote 7 more or less in one stroke as a curve that looks like an uppercase vertically inverted. The western Ghubar Arabs' main contribution was to make the longer line diagonal rather than straight, though they showed some tendencies to making the digit more rectilinear. The eastern Arabs developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II Light Tanks
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of many parts. In '' scientific cosmology'' the world or universe is commonly defined as " e totality of all space and time; all that is, has been, and will be". '' Theories of modality'', on the other hand, talk of possible worlds as complete and consistent ways how things could have been. ''Phenomenology'', starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In ''philosophy of mind'', the world is commonly contrasted with the mind as that which is represented by the mind. ''T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Tanks Of The Interwar Period
Light or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). In physics, the term "light" may refer more broadly to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. The primary properties of light are intensity, propagation direction, frequency or wavelength spectrum and polarization. Its speed in a vacuum, 299 792 458 metres a second (m/s), is one of the fundamental constants of nature. Like all types of electromagnetic radiation, visible light propagates by massless elementary particles called photons that represents the quanta of electromagnetic field, and can be analyzed as both waves and particl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siege Of Warsaw (1939)
The siege of Warsaw in 1939 was fought between the Polish Warsaw Army ( pl, Armia Warszawa) garrisoned and entrenched in Warsaw and the invading German Army.Zaloga, S.J., 2002, ''Poland 1939'', Oxford: Osprey Publishing Ltd., It began with huge aerial bombardments initiated by the Luftwaffe starting on September 1, 1939 following the Nazi invasion of Poland. Land fighting started on September 8, when the first German armored units reached the Wola district and south-western suburbs of the city. Despite German radio broadcasts claiming to have captured Warsaw, the initial enemy attack was repelled and soon afterwards Warsaw was placed under siege. The siege lasted until September 28, when the Polish garrison, commanded under General Walerian Czuma, officially capitulated. The following day approximately 140,000 Polish troops left the city and were taken as prisoners of war. On October 1 the Wehrmacht entered Warsaw, which started a period of German occupation that lasted un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modlin Fortress
Modlin Fortress ( pl, Twierdza Modlin) is one of the largest 19th-century fortresses in Poland. It is located in the town of Nowy Dwór Mazowiecki in district Modlin on the Narew river, approximately 50 kilometers north of Warsaw. It was originally constructed by the French from 1806 to 1812. History The strategic importance of the area limited by the Vistula, Bug, Wkra and Narew was known to various armies throughout the ages. The first fortified stronghold was built in Zakroczym by the Piast dynasty in the 11th century. However, first modern fortified position was built there in 1656 by the Swedish armies during The Deluge. The so-called ''Bugskansen'' was a star-shaped fortified military camp, located probably close to the confluence of the Narew and the Vistula, at the so-called ''Swedish Island''. The camp was also guarding a wooden bridge over the Vistula prior to the battle of Zakroczym and served as the main supply depot of the Swedish army during the battle of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Habich
Edward Jan Habich ( es, Eduardo de Habich) (31 January 1835, Warsaw – 31 October 1909, Lima, Peru) was a Polish engineer and mathematician. In 1876, he founded the National University of Engineering ( es, Universidad Nacional de Ingeniería), a renowned engineering school in Lima, Peru. He was a member of the Peruvian Geographic Society and an Honorary Citizen of Peru. In his native Poland he took part in the January Uprising against the Russian Empire in 1863. Burial Edward Jan Habich is buried at the Cementerio Presbítero Matías Maestro The Cementerio Presbítero Matías Maestro is a cemetery in Lima, the capital city of Peru. It is also a museum, though attempts to make it a museum exclusively have failed. The architectural styles of the mausoleums found within are broad ran ..., Lima, Peru. Gallery Eduardo de Habich bust in Lima, Peru.jpg, Bust of Edward Jan Habich at the National University of Engineering in Lima, Peru Lima_peru_presbitero_habich_2.jpg, Sarco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grille (car)
In automotive engineering, a grille covers an opening in the body of a vehicle to allow air to enter or exit. Most vehicles feature a grille at the front of the vehicle to protect the radiator and engine. Merriam-Webster describes grilles as "a grating forming a barrier or screen; especially: an ornamental one at the front end of an automobile." The word 'grille' is commonly misspelled as 'grill' which instead refers to the cooking method. Other common grille locations include below the front bumper, in front of the wheels (to cool the brakes), in the cowl for cabin ventilation, or on the rear deck lid (in rear engine vehicles). Grilles evolved from previously installed gravel shields that were designed to protect exposed radiators typically used on cars until the early 1930s. Design The front fascia of a motor vehicle has an important role in attracting buyers. The principal function of the grille is to admit cooling air to the car's radiator. However, the look of the vehicle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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