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Wilhelm Bauer
Wilhelm Bauer (; 23 December 1822 – 20 June 1875) was a German marine engineer and inventor who built several hand-powered submarines. Biography Wilhelm Bauer was born in Dillingen in the Kingdom of Bavaria. His father was a sergeant in a Bavarian cavalry regiment. After an apprenticeship as a wood turner, Bauer also joined the army. Working as an artillery engineer, he witnessed the German/Danish war for Schleswig-Holstein between 1848 and 1851. Seeing how the Prussian coast was easily blockaded by the Danish navy, Bauer quickly developed a plan to build a new type of submersible ship to help break the blockade. He began studying hydraulics and ship construction. However, before his studies could get very far, the troops of the German Confederation decided to withdraw and surrendered Schleswig-Holstein to Denmark. However, Bauer was determined to realize his plan and left the Bavarian Army to join the forces of Schleswig-Holstein. It proved very hard for Bauer, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dillingen An Der Donau
Dillingen an der Donau (; officially Dillingen a.d.Donau; ) is a Town#Germany, town in Swabia (Bavaria), Swabia, Bavaria, Germany. It is the administrative center of the district of Dillingen (district), Dillingen. Besides the town of Dillingen proper, the municipality encompasses the villages of Donaualtheim, Fristingen, Hausen, Kicklingen, Schretzheim and Steinheim. Schretzheim is notable for its 6th to 7th century Alemannic cemetery, 630 row graves in an area of 100 by 140 metres. History The counts of Dillingen ruled from the 10th to the 13th century; in 1258 the territory was turned over to the Prince-Bishop, Prince Bishops of Augsburg. After the Protestant Reformation, Reformation, the Prince-Bishopric of Augsburg, prince-bishops of Augsburg moved to the Catholic city of Dillingen and made it one of the centers of the Catholic Reformation, Counter-Reformation. In 1800, during the War of the Second Coalition, the armies of the French First Republic, under command of Jean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulics
Hydraulics () is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of Power (physics), power by the use of pressure, pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and they cover concepts such as pipe Volumetric flow rate, flow, dam design, fluidics, and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. ''Free surface hydraulics'' is the branch of hydraulics dealing with free surface flow, such as occurring in rivers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kiel
Kiel ( ; ) is the capital and most populous city in the northern Germany, German state of Schleswig-Holstein. With a population of around 250,000, it is Germany's largest city on the Baltic Sea. It is located on the Kieler Förde inlet of the Bay of Kiel and lies in the southeast of the Jutland Peninsula, on the mouth of the Schwentine River, approximately northeast of Hamburg. The world's busiest artificial waterway, the Kiel Canal, has a terminus in Kiel's Holtenau district. This canal connects the Baltic to the North Sea, with its other end in Brunsbüttel. Most of Kiel is part of Holstein. The boroughs north of the Schwentine also belong to Wagria, while those north of the Kiel Canal are historically part of Southern Schleswig. Kiel is one of Germany's major maritime centres, known for a variety of international sailing events, including the annual Kiel Week, which is the biggest sailing event in the world. Kiel is also known for the Kiel mutiny, Kiel Mutiny, when sailors re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gutta Percha
Gutta-percha is a tree of the genus '' Palaquium'' in the family Sapotaceae, which is primarily used to create a high-quality latex of the same name. The material is rigid, naturally biologically inert, resilient, electrically nonconductive, and thermoplastic, most commonly sourced from ''Palaquium gutta''; it is a polymer of isoprene which forms a rubber-like elastomer. The word "gutta-percha" comes from the plant's name in Malay: translates as 'sticky gum' and () is the name of a less-sought-after gutta tree. The western term therefore is likely a derivative amalgamation of the original native names. Description ''Palaquium gutta'' trees are tall and up to in trunk diameter. The leaves are evergreen, alternate or spirally arranged, simple, entire, long, glossy green above, and often yellow or glaucous below. The flowers are produced in small clusters along the stems, each flower with a white corolla with four to seven (mostly six) acute lobes. The fruit is an ovoid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howaldtswerke
Howaldtswerke-Deutsche Werft GmbH (often abbreviated HDW) is a German shipbuilding company, headquartered in Kiel. It is part of the ThyssenKrupp Marine Systems (TKMS) group, owned by ThyssenKrupp. The Howaldtswerke shipyard was founded in Kiel in 1838 and merged with Hamburg-based Deutsche Werft to form Howaldtswerke-Deutsche Werft (HDW) in 1968. The company's shipyard was formerly used by Friedrich Krupp Germaniawerft until the end of World War II. History HDW was founded October 1, 1838 in Kiel by engineer August Howaldt and entrepreneur under the name ''Maschinenbauanstalt und Eisengießerei Schweffel & Howaldt'' (Machine Factory and Iron Foundry Schweffel & Howaldt), initially building boilers. The first steam engine for naval purposes was built in 1849 for ''Von der Tann'', a gunboat for the small navy of Schleswig-Holstein. In 1850, the company built an early submarine, ''Brandtaucher'', designed by Wilhelm Bauer. It had been intended to build the boat in Rendsburg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Howaldt
August Ferdinand Howaldt (23 October 1809 – 4 August 1883) was a German engineer and ship builder. The German sculptor Georg Ferdinand Howaldt was his brother. Biography Born in Braunschweig, the son of the silversmith David Ferdinand Howaldt, with whom he got his first practice working in metal, Howaldt made an apprenticeship in Hamburg and became a ''practical mechanicus''. In 1838 he moved to Kiel, where he married Emma Diederichsen. In Kiel he founded together with the Kiel entrepreneur the "Maschinenbauanstalt Schweffel & Howaldt", a company initially building boilers for industry and the new railroad companies in between Hamburg and Kiel and agricultural machinery for the surrounding estates in Holstein. In 1849 Schweffel & Howaldt built its first steam engine for naval purposes for the ''Von der Tann'', a gunboat for the small navy of Schleswig-Holstein, and the '' Brandtaucher'', the first German incendiary diver or submarine designed by Wilhelm Bauer. The ''Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brutus De Villeroi
Brutus de Villeroi (1794 – 1874) was a French engineer of the 19th century, born Brutus Amédée Villeroi (he added the aristocratic "de" in his later years) in the city of Tours and soon moved to Nantes, who developed some of the first operational submarines, and the first submarine of the United States Navy, the ''Alligator'', in 1862. Life Brutus Amédée Villeroi was the son of François Villeroi, a poet and a printer in Tours (France). The family moved to Nantes in 1799, after the closing of the printing house in which his father worked.Jimenes, Rémi. "François Villeroi, typographe-poète" in François Villeroi, ''La muse typographique. Vers inédits de l'imprimerie nantaise sous l'Empire et la Restauration'', Bassac, Plein Chant, 2021, p. 13-29 Brutus began his career as a music and mathematics teacher. In the 1820, he taught flute, horn, guitar, draughtsmanship and mathematics in Nantes, Tréguier (1821) and Saint-Brieuc (1823). In 1821, he filed a patent for his f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Alligator (1862)
USS ''Alligator'', the fourth United States Navy ship of that name, is the first known U.S. Navy submarine, and was active during the American Civil War (the first American underwater vehicle was during the Revolutionary War, and was operated by the Continental Army, vice Navy, in 1776 against British vessels in New York harbor). During the Civil War the Confederate States Navy would also build its own submarine, . ''Alligator'' Junior Brutus de Villeroi was a French engineer, inventor, and ship designer. Well-regarded in France where he had designed many diving ships, he immigrated to the United States in 1856, where he continued his work in shipbuilding. One of his ships was a salvage ship built in 1859. This ship was later retroactively dubbed the "''Alligator'' Junior" (or ''Alligator Jr.'') due to serving as something of a prototype for the ''Alligator''. It was around 30–35 feet long, a mere 44 inches in diameter, iron-hulled, and weighed several tons. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sub Marine Explorer
''Sub Marine Explorer'' is a submersible built between 1863 and 1866 by Julius H. Kroehl and Ariel Patterson in Brooklyn, New York for the Pacific Pearl Company. It was hand powered and had an interconnected system of a high-pressure air chamber or compartment, a pressurized working chamber for the crew, and water ballast tanks. Problems with decompression sickness and overfishing of the pearl beds led to the abandonment of ''Sub Marine Explorer'' in Panama in 1869 despite publicized plans to shift the craft to the pearl beds of Baja California. Construction ''Sub Marine Explorer'' had an external high air pressure chamber which was filled with compressed air at a pressure of up to by a steam pump mounted on an external support vessel. Water ballast tanks were flooded to make the vessel submerge. Pressurized air was then released into the vessel to build up enough pressure so it would be possible to open two hatches on the underside, while keeping water out. This meant t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julius H
Julius may refer to: People * Julius (name), a masculine given name and surname (includes a list of people with the name) * Julius (nomen), the name of a Roman family (includes a list of Ancient Romans with the name) ** Julius Caesar (100–44 BC), Roman military and political leader and one of the most influential men of classical antiquity * Julius (judge royal) (fl. before 1135), noble in the Kingdom of Hungary * Julius, Count of Lippe-Biesterfeld (1812–1884), German noble * Julius, Duke of Brunswick-Lüneburg (1528–1589), German noble Arts and entertainment * Julius (''Everybody Hates Chris''), a character from the American sitcom * "Julius" (song), by Phish, 1994 Other uses * Julius (chimpanzee), a chimpanzee at Kristiansand Zoo and Amusement Park in Norway * Julius (month), the month of the ancient Roman calendar originally called ''Quintilis'' and renamed for Julius Caesar * Julius (restaurant) Julius (also known as Julius's or Julius' Bar) is a tavern at 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Mine
A naval mine is a self-contained explosive weapon placed in water to damage or destroy surface ships or submarines. Similar to anti-personnel mine, anti-personnel and other land mines, and unlike purpose launched naval depth charges, they are deposited and left to wait until, depending on their fuzing, they are triggered by the approach of or contact with any vessel. Naval mines can be used offensively, to hamper enemy shipping movements or lock vessels into a harbour; or defensively, to create "safe" zones protecting friendly sea lanes, harbours, and naval assets. Mines allow the minelaying force commander to concentrate warships or defensive assets in mine-free areas giving the adversary three choices: undertake a resource-intensive and time-consuming minesweeping effort, accept the casualties of challenging the minefield, or use the unmined waters where the greatest concentration of enemy firepower will be encountered. Although international law requires signatory nations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Ship
A fire ship or fireship is a large wooden vessel set on fire to be used against enemy ships during a ramming attack or similar maneuver. Fireships were used to great effect against wooden ships throughout naval military history up until the advent of metal-hulled ships; they could also serve a considerable function in shock and awe strategies to harm the morale of enemy crews. Ships used for fireship tactics were typically purpose-built or retrofitted from surplus or obsolete vessels, either of which could be filled with gunpowder or other combustibles before a battle, but could also be improvised from warships in active combat purposely set on fire during engagements, such as if a vessel expended its munitions or had some other reason to be abandoned in battle. Specialized fire ships included the massive Dutch hellburners, also called "explosion ships", which were fitted with large explosive stores designed to detonate upon contact with the enemy. Fireships were used to gre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
