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V3 Cannon
The V-3 () was a German World War II large-caliber gun working on the multi-charge principle whereby secondary propellant charges are fired to add velocity to a projectile. Two full-size guns were built in the underground Fortress of Mimoyecques in northern France and permanently aimed at London, but they were rendered unusable by Allied bombing raids before completion. Two smaller guns were used to bombard Luxembourg from December 1944 to February 1945. The V-3 was also known as the ''Hochdruckpumpe'' ("High Pressure Pump", HDP for short), which was a code name intended to hide the real purpose of the project. It was also known as ''Fleißiges Lieschen'' ("Busy Lizzie"). (bottom of page) Description The gun used multiple propellant stages placed along the barrel's length in order to provide an additional boost. These were ignited by the hot gases that propelled the projectile as it passed them. Solid-fuel rocket boosters were used instead of explosive charges because of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Zalesie, Kamień County
Zalesie (; ) is a village in the administrative district of Gmina Międzyzdroje, within Kamień County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately south of Międzyzdroje, west of Kamień Pomorski, and north of the regional capital Szczecin Szczecin ( , , ; ; ; or ) is the capital city, capital and largest city of the West Pomeranian Voivodeship in northwestern Poland. Located near the Baltic Sea and the Poland-Germany border, German border, it is a major port, seaport, the la .... References Villages in Kamień County {{Kamień-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Azel Storrs Lyman
Azel, proper name, may refer to: *'' Azel: Panzer Dragoon RPG'', a 1998 video game *A descendant of Saul (I Chronicles 8:37; I Chronicles 9:43-44) Books of Chronicles *A variant spelling of Azal, a place name referred to in Zechariah 14:5 Book of Zechariah *One of the Four Devas, the Primary Antagonists of God Hand AzEl or Az-El may also refer to: *A type of Antenna Rotator An antenna rotator (or antenna rotor) is a device used to change the orientation (geometry), orientation, within the horizontal plane, of a directional antenna. Most Antenna (radio), antenna rotators have two parts, the rotator unit and the cont ... mounting (diminutive for Azimuth/Elevation) * ''Azel'' (album) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Röchling Shell
Röchling shells were bunker buster, bunker-busting artillery shells, developed by German engineer August Coenders during World War II, based on the theory of increasing the sectional density to improve penetration. Description The Sub-caliber ammunition, subcaliber shells made from chrome-vanadium steel were able to penetrate much more than of reinforced concrete roof before burying the shell through the floor and into earth. They resembled fin-stabilized arrow shells, but had a discarding flange acting as a driving band instead of fins. Despite high penetration, these shells had a low muzzle velocity, and thus a high dispersion, on range. As a result, they saw very limited use during World War II; only about 200 shells were ever fired even though 6,000 such shells were made for the very large howitzers like the 21 cm mortar. Röchling shells were developed for the 21 cm Mörser 18, a captured Canon de 340 modèle 1912 à berceau#World War II, French 34 cm railway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
August Coenders
August Coenders (1890 — 1974) was a German engineer working for Stahlwerke Becker AG during World War I, where he built a 20 mm antiaircraft gun. In the 1930s, he worked for several years in the UK, and in Putaux, France as well as at Oerlikon, Switzerland. In 1936 Hermann Röchling brought him to Wetzlar, Germany, where he worked at Röchling'sche Eisen und Stahlwerke GmbH during World War II . Cönders designed the Röchling shell that was tested in 1942 and 1943 against the Belgian Fort d'Aubin-Neufchâteau and the V-3 cannon. Very little is known of his life after the V-3 project. He was involved in the development of several firearm designs: submachine gun A submachine gun (SMG) is a magazine (firearms), magazine-fed automatic firearm, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to descri ..., machine gun, Röchling ''Volksgewehr'' and ''Volkssturmkarab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of cities in the European Union by population within city limits, fourth-most populous city in the European Union and the List of cities proper by population density, 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, Fashion capital, fashion, and gastronomy. Because of its leading role in the French art, arts and Science and technology in France, sciences and its early adoption of extensive street lighting, Paris became known as the City of Light in the 19th century. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an official estimated population of 12,271,794 inhabitants in January 2023, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Exposition Universelle (1878)
The 1878 Universal Exposition (, ), also known as the 1878 Paris Exposition, 1878 World Fair, or 1878 World Expo, was a world's fair held in Paris, French Third Republic, France, from 1 May to 10 November 1878, to celebrate the recovery of France after the 1870–71 Franco-Prussian War. It was the List of world expositions, third of ten major expositions held in the city between 1855 and 1937. Construction The buildings and the fairgrounds were somewhat unfinished on opening day, as political complications had prevented the French government from paying much attention to the exhibition until six months before it was due to open. However, efforts made in April were prodigious, and by 1 June, a month after the formal opening, the exhibition was finally completed. This exposition was on a far larger scale than any previously held anywhere in the world. It covered over , the main building in the Champ de Mars and the hill of Chaillot, occupying . The Gare du Champ de Mars was rebu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Michaux-Perreaux Steam Velocipede
The Michaux-Perreaux steam velocipede was a steam powered velocipede made in France some time from 1867 to 1871, when a small Louis-Guillaume Perreaux commercial steam engine was attached to a Pierre Michaux manufactured iron framed pedal bicycle. It is one of three motorcycles claimed to be the first motorcycle, along with the Roper steam velocipede of 1867 or 1868, and the internal combustion engine Daimler Reitwagen of 1885. Perreaux continued development of his steam cycle, and exhibited a tricycle version by 1884. The only Michaux-Perreaux steam velocipede made, on loan from the Musée de l'Île-de-France, Sceaux, Hauts-de-Seine, Sceaux, was the first machine viewers saw upon entering the Solomon R. Guggenheim Museum rotunda in The Art of the Motorcycle exhibition in New York in 1998. First motorcycle? Motoring author L. J. K. Setright commented that, "the simplest way to define a motorcycle is as a bicycle propelled by a heat engine; and if we accept this we must go on to adm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Louis-Guillaume Perreaux
Louis-Guillaume Perreaux (19 February 1816 – 5 April 1889) was a French inventor and engineer who submitted one of the first patents for a working motorcycle in 1869. Early life Perreaux was born in the village of Almenêches, in Normandy, France, on 19 February 1816. After attending elementary school in Almenêches he showed an early interest in engineering, inventing a cane gun (a type of walking stick with a gun concealed inside) at the age of 12. Perreaux was then sent to the Minor Seminary of Sees where he formed the ideas that were later published in his first book in 1877, the two-volume ''Lois de l'univers principe de la création'' (''Laws of the Universe''), which is now in the Bibliothèque Nationale in Paris. He secured a scholarship to the School of Arts and Crafts at Châlons-sur-Marne in 1836. Inventions Perreaux moved to Paris, where he began working on and patenting a range of inventions including a multi-chambered gun, a lock mechanism in 1841, a circular po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
RBL 7 Inch Armstrong Gun
The Armstrong RBL 7-inch gun, also known as the 110-pounder, was a heavy caliber Armstrong gun, an early type of rifled breechloader. William Armstrong's innovative combination of a rifled built-up gun with breechloading had proven suitable for small cannon. When it was applied to a 7-inch gun, it proved that the pressure caused by the explosive charge that was required to propel a 110-pound shot was too much for his breechloading system. Description The Armstrong "screw" breech mechanism used a heavy block inserted in a vertical slot in the barrel behind the chamber, with a large hollow screw behind it which was manually screwed tight against the block after loading. A metal cup on the front of the block, together with the pressure of the screw behind it, provided "obturation" and sealed the breech to prevent escape of gasses rearward on firing. The sliding-block was known as the "vent-piece", as the vent tube was inserted through it to fire the gun. In modern terms it was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Obturation
Obturation is the necessary barrel blockage or fit in a firearm or airgun created by a deformed soft projectile. A bullet or pellet made of soft material and often with a concave base will flare under the heat and pressure of firing, filling the bore and engaging the barrel's rifling. The mechanism by which an undersized soft-metal projectile enlarges to fill the barrel is, for hollow-base bullets, expansion from gas pressure within the base cavity and, for solid-base bullets, "upsetting"—the combined shortening and thickening that occurs when a malleable metal object is struck forcibly at one end. Obturation is achieved in shotgun shells (which have multiple pellets much smaller than the barrel bore) by placing a plastic wad or biodegradable card of the same diameter as the barrel between the propellant powder and the pellets. In a cartridge - such as a bullet or cased artillery shell - "obturation" is initiated by the action of a soft metallic cartridge case being pressed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Philadelphia
Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the United States, with a population of 1,603,797 in the 2020 United States census, 2020 census. The city is the urban core of the Philadelphia metropolitan area (sometimes called the Delaware Valley), the nation's Metropolitan statistical area, seventh-largest metropolitan area and ninth-largest combined statistical area with 6.245 million residents and 7.379 million residents, respectively. Philadelphia was founded in 1682 by William Penn, an English Americans, English Quakers, Quaker and advocate of Freedom of religion, religious freedom, and served as the capital of the Colonial history of the United States, colonial era Province of Pennsylvania. It then played a historic and vital role during the American Revolution and American Revolutionary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
