|
HNLMS K II
''K II'' was a unique patrol submarine of the Royal Netherlands Navy. The ship was built by ''Fijenoord'' shipyard in Rotterdam. The boat had a diving dept of . Service history The submarine was laid down in Rotterdam at the shipyard of ''Fijenoord'' on November 20, 1915. The launch took place on February 27, 1919. On March 28, 1922 ''K II'' was commissioned in the Dutch navy. On September 18, 1923 ''K II'' together with , and the submarine tender began their journey to the Dutch East Indies, the ships' theater of operations. On board ''K II '' was professor F.A. Vening Meinesz who conducted gravity measurements. He left the ship in Colombo. The ships where delayed when ''Pelikaan'' ran aground at Tunis. On December 11, 1923 the ships arrived at Sabang where they stayed until December 7. On December 7, they set sail for Tanjung Priok Tanjung Priok is a district of North Jakarta, Indonesia. It hosts the western part of the city's main harbor, the Port of Tanjung Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fijenoord
Fijenoord () was a shipbuilding company and machine factory in Rotterdam the Netherlands from 1823 to 1929. In 1929 it merged with Wilton to become Wilton-Fijenoord. Early years First ships and activities of the NSM In 1822 a number of businessmen and women and the engineer Gerhard Mauritz Roentgen. founded Van Vollenhoven, Dutilh en Co. In June 1823 ''De Nederlander'', the first Dutch steamboat (with English engines) started its service, which would become a line between Rotterdam and Antwerp. In 1824 the Nederlandsche Stoomboot Maatschappij (NSM, but also NSBM) was founded and succeeded to Van Vollenhoven, Dutilh en Co. Roentgen became one of its two executives. NSM was primarily a shipping line. Its first business activities consisted of founding a number of lines from Rotterdam to Antwerp, Veere, Nijmegen and Arnhem. The required ships and in particular their engines, were designed by Roentgen. The first hulls were built by other companies, but the steam engines were all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Submarines are referred to as ''boats'' rather than ''ships'' irrespective of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and they were adopted by several navies. They were first widely used during World War I (1914–1918), and are now used in many navy, navies, large and small. Military uses include attacking enemy surface ships (merchant and military) or other submarines, and for aircraft carrier protection, Blockade runner, blockade running, Ballistic missile submarine, nuclear deterrence, reconnaissance, conventio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Motor
An electric motor is an Electric machine, electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a Electromagnetic coil, wire winding to generate force in the form of torque applied on the motor's shaft. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy. Electric motors can be powered by direct current (DC) sources, such as from batteries, or rectifiers, or by alternating current (AC) sources, such as a power grid, Inverter (electrical), inverters or electrical generators. Electric motors may be classified by considerations such as power source type, construction, application and type of motion output. They can be powered by AC or DC, be Brushed motor, brushed or Brushless motor, brushless, single-phase, Two-phase electric power, two-p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Tube
A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboard surface vessels. Deck-mounted torpedo launchers are usually designed for a specific type of torpedo, while submarine torpedo tubes are general-purpose launchers, and are often also capable of deploying naval mine, mines and cruise missiles. Most modern launchers are standardized on a diameter for light torpedoes (deck mounted aboard ship) or a diameter for heavy torpedoes (underwater tubes), although other sizes of torpedo tube have been used: see Torpedo#Classes and diameters, Torpedo classes and diameters. Submarine torpedo tube A submarine torpedo tube is a more complex mechanism than a torpedo tube on a surface ship, because the tube has to accomplish the function of moving the torpedo from the normal atmospheric pressure within t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Netherlands Navy
The Royal Netherlands Navy ( nl, Koninklijke Marine, links=no) is the naval force of the Kingdom of the Netherlands. During the 17th century, the navy of the Dutch Republic (1581–1795) was one of the most powerful naval forces in the world and played an active role in the Anglo-Dutch Wars, the Franco-Dutch War, and wars against Spain and several other European powers. The Batavian Navy of the later Batavian Republic (1795–1806) and Kingdom of Holland (1806–1810) played an active role in the Napoleonic Wars, though mostly dominated by French interests. After the establishment of the modern Kingdom of the Netherlands, it served an important role in protecting Dutch colonial rule, especially in Southeast Asia, and would play a minor role in World War II, especially against the Imperial Japanese Navy. Since World War II, the Royal Netherlands Navy has taken part in expeditionary peacekeeping operations. Bases The main naval base is in Den Helder, North Holland. Secondary na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotterdam
Rotterdam ( , , , lit. ''The Dam on the River Rotte'') is the second largest city and municipality in the Netherlands. It is in the province of South Holland, part of the North Sea mouth of the Rhine–Meuse–Scheldt delta, via the ''"New Meuse"'' inland shipping channel, dug to connect to the Meuse first, but now to the Rhine instead. Rotterdam's history goes back to 1270, when a dam was constructed in the Rotte. In 1340, Rotterdam was granted city rights by William IV, Count of Holland. The Rotterdam–The Hague metropolitan area, with a population of approximately 2.7 million, is the 10th-largest in the European Union and the most populous in the country. A major logistic and economic centre, Rotterdam is Europe's largest seaport. In 2020, it had a population of 651,446 and is home to over 180 nationalities. Rotterdam is known for its university, riverside setting, lively cultural life, maritime heritage and modern architecture. The near-complete destruction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch East Indies
The Dutch East Indies, also known as the Netherlands East Indies ( nl, Nederlands(ch)-Indië; ), was a Dutch colony consisting of what is now Indonesia. It was formed from the nationalised trading posts of the Dutch East India Company, which came under the administration of the Dutch government in 1800. During the 19th century, the Dutch possessions and hegemony expanded, reaching the greatest territorial extent in the early 20th century. The Dutch East Indies was one of the most valuable colonies under European rule, and contributed to Dutch global prominence in spice and cash crop trade in the 19th to early 20th centuries. The colonial social order was based on rigid racial and social structures with a Dutch elite living separate from but linked to their native subjects. The term ''Indonesia'' came into use for the geographical location after 1880. In the early 20th century, local intellectuals began developing the concept of Indonesia as a nation state, and set the stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felix Andries Vening Meinesz
Felix Andries Vening Meinesz (30 July 1887 – 10 August 1966) was a Dutch geophysicist and geodesist. He is known for his invention of a precise method for measuring gravity (gravimetry). Thanks to his invention, it became possible to measure gravity at sea, which led him to the discovery of gravity anomalies above the ocean floor. He later attributed these anomalies to continental drift. He was a Fellow of the Royal Society. Biography Vening Meinesz's father, Sjoerd Anne Vening Meinesz, was mayor, first of Rotterdam, then of Amsterdam. Felix was born in The Hague grew up in a protected environment. In 1910 he graduated in civil engineering in Delft. The same year he started working for the Dutch gravity survey. In 1915 he wrote his dissertation on the defects of the gravimeters used at that time. Vening Meinesz then designed a new gravimeter, which the KNMI (Royal Dutch Meteorological Institute) built. The apparatus has two pendula of the same size hanging in a frame but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colombo
Colombo ( ; si, කොළඹ, translit=Koḷam̆ba, ; ta, கொழும்பு, translit=Koḻumpu, ) is the executive and judicial capital and largest city of Sri Lanka by population. According to the Brookings Institution, Colombo metropolitan area has a population of 5.6 million, and 752,993 in the Municipality. It is the financial centre of the island and a tourist destination. It is located on the west coast of the island and adjacent to the Greater Colombo area which includes Sri Jayawardenepura Kotte, the legislative capital of Sri Lanka, and Dehiwala-Mount Lavinia. Colombo is often referred to as the capital since Sri Jayawardenepura Kotte is itself within the urban/suburban area of Colombo. It is also the administrative capital of the Western Province and the district capital of Colombo District. Colombo is a busy and vibrant city with a mixture of modern life, colonial buildings and monuments. Due to its large harbour and its strategic position along th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunis
''Tounsi'' french: Tunisois , population_note = , population_urban = , population_metro = 2658816 , population_density_km2 = , timezone1 = CET , utc_offset1 = +01:00 , timezone1_DST = , utc_offset1_DST = , postal_code_type = Postal code , postal_code = 1xxx, 2xxx , area_code_type = Calling code , area_code = 71 , iso_code = TN-11, TN-12, TN-13 and TN-14 , blank_name_sec2 = geoTLD , blank_info_sec2 = .tn , website = , footnotes = Tunis ( ar, تونس ') is the capital and largest city of Tunisia. The greater metropolitan area of Tunis, often referred to as " Grand Tunis", has about 2,700,000 inhabitants. , it is the third-largest city in the Maghreb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabang, Indonesia
Sabang ( Jawoë: سابڠ) is a city in Aceh province, Indonesia consisting of Weh Island and several smaller islands off the northern tip of Sumatra. The administrative centre is located north of Banda Aceh. The city covers an area of and had a population of 43,391 in the 2020 census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2021 was 42,066.Badan Pusat Statistik, Jakarta, 2022. Sabang is known as the northernmost and westernmost city of Indonesia. It also has by far the smallest population of any city in Indonesia. History According to local mythology, the island of Weh was once connected to the mainland Sumatra. The island of Weh has been described as far as Ptolemy in 301 BC and was mentioned as "Golden Island". During early 11th and 12th centuries, the island was often visited by Arab and Indian traders who called the island "Shabag", which arguably was the origin of the city name. The settlement on the island was called by Acehnese "Ulee I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
