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Ictineu 3
''Ictineu 3'' is a manned submersible capable of reaching depths of 1,200 m (3,900 ft), which makes it the ninth deepest submersible, owned by ''Ictineu submarins SL''. Commissioned in 2013, the submersible can carry one pilot and two passengers during 10 hours using all the equipment. The small weight and dimensions of the submarine (4.8 x 1.9 x 3 m) allow the Ictineu 3 to be carried with a conventional truck without requiring special transportation. The main body is made of inox steel and, at the front, there is a large semi-spheric acrylic glass viewport of 1,200 mm diameter that provides a wide field of view. There are four brushless DC motors for propulsion and four more for manoeuvring, powered by li-ion batteries located outside the submersible for safety. Its applications range from submarine archaeology to industrial work, and it is specially designed to be easy to adapt it to new technology and equipment, having additional ports for wires, sensors and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeology
Archaeology or archeology is the scientific study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, architecture, biofacts or ecofacts, sites, and cultural landscapes. Archaeology can be considered both a social science and a branch of the humanities. It is usually considered an independent academic discipline, but may also be classified as part of anthropology (in North America – the four-field approach), history or geography. Archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. Archaeology is distinct from palaeontology, which is the study of fossil remains. Archaeology is particularly important for learning about prehistoric societies, for which, by definition, there are no written records. Prehistory includes over 99% of the human past, from the Paleolithic until the adven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germanischer Lloyd
The Germanischer Lloyd SE was a classification society based in the city of Hamburg, Germany. It ceased to exist as an independent entity in September 2013 as a result of its merger with Norway's DNV (Det Norske Veritas) to become DNV GL. Before the merger, as a technical supervisory organization, Germanischer Lloyd conducted safety surveys on more than 7,000 ships with over 100 Mio GT. Its technical and engineering services also included the mitigation of risks and assurance of technical compliance for oil, gas, and industrial installations, as well as wind energy parks. History On 16 March 1867, a group of 600 shipowners, shipbuilders and insurers met in the big hall of the Hamburg Stock Exchange on the occasion of the founding convention of Germanischer Lloyd. On behalf of the founding committee, the merchant and shipowner August Behn signed the statute of the young institution. The founding committee consisted of representatives of shipowners J. C. Godeffroy & Sohn, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Museum Of Barcelona
The Maritime Museum of Barcelona ( ca, Museu Marítim de Barcelona, MMB) is located in the building of '' Drassanes Reials de Barcelona'', the royal arsenal of Barcelona, dedicated to shipbuilding between the thirteenth century and eighteenth century. The first mention of these arsenals date from 1243 in a document indicating the boundaries of the city of Barcelona where it mentions its shipyard. It shows the history of the navigation from the early days together with the history of the Spanish Navy since the Catholic Monarchs, in the 15th century, up to the present. It also hosts several navigation instruments, weapons, portolans and paintings. The museum was declared Museum of National Interest by the Government of Catalonia. Building It is located inside ''Barcelona Royal Shipyard'' ( ca, Drassanes Reials de Barcelona; es, link=no, Atarazanas Reales de Barcelona) a shipyard and former military building of Gothic architecture placed at the Port Vell area of the Port of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcís Monturiol
Narcís Monturiol i Estarriol (; Narciso Monturiol Estarriol, in Spanish, 28 September 1819 – 6 September 1885) was a Spanish inventor, artist and engineer born in Figueres, Catalonia, Spain. He was the inventor of the first air-independent and combustion-engine-driven submarine. Biography Monturiol i Estarriol was born in the city of Figueres, Spain. He was the son of a cooper. Monturiol went to high school in Cervera and got a law degree in Mostoles in 1845. He solved the fundamental problems of underwater navigation. In effect, Monturiol invented the first fully functional engine-driven submarine. Monturiol never practiced law, instead turning his talents to writing and publishing, setting up a publishing company in 1846, the same year he married his wife Emilia. He produced a series of journals and pamphlets espousing his radical beliefs in feminism, pacifism, and utopian communism. He also founded the newspaper "''La Madre de Familia''", in which he promised "to defend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crowdfunding
Crowdfunding is the practice of funding a project or venture by raising money from a large number of people, typically via the internet. Crowdfunding is a form of crowdsourcing and alternative finance. In 2015, over was raised worldwide by crowdfunding. Although similar concepts can also be executed through mail-order subscriptions, benefit events, and other methods, the term crowdfunding refers to internet-mediated registries. This modern crowdfunding model is generally based on three types of actors – the project initiator who proposes the idea or project to be funded, individuals or groups who support the idea, and a moderating organization (the "platform") that brings the parties together to launch the idea. Crowdfunding has been used to fund a wide range of for-profit, entrepreneurial ventures such as artistic and creative projects, medical expenses, travel, and community-oriented social entrepreneurship projects. Although crowdfunding has been suggested to be highly li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degrees Of Freedom
Degrees of freedom (often abbreviated df or DOF) refers to the number of independent variables or parameters of a thermodynamic system. In various scientific fields, the word "freedom" is used to describe the limits to which physical movement or other physical processes are possible. This relates to the philosophical concept to the extent that people may be considered to have as much freedom as they are physically able to exercise. Applications Statistics In statistics, degrees of freedom refers to the number of variables in a statistic calculation that can vary. It can be calculated by subtracting the number of estimated parameters from the total number of values in the sample. For example, a sample variance calculation based on n samples will have n-1 degrees of freedom, because sample variance is calculated using the sample mean as an estimate of the actual mean. Mathematics In mathematics, this notion is formalized as the dimension of a manifold or an algebraic variety. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robotic Arm
A robotic arm is a type of mechanical arm, usually programmable, with similar functions to a human arm; the arm may be the sum total of the mechanism or may be part of a more complex robot. The links of such a manipulator are connected by joints allowing either rotational motion (such as in an articulated robot) or translational (linear) displacement. The links of the manipulator can be considered to form a kinematic chain. The terminus of the kinematic chain of the manipulator is called the end effector and it is analogous to the human hand. However, the term "robotic hand" as a synonym of the robotic arm is often proscribed. Types * Cartesian robot / Gantry robot: Used for pick and place work, application of sealant, assembly operations, handling machine tools and arc welding. It is a robot whose arm has three prismatic joints, whose axes are coincident with a Cartesian coordinator. * collaborative robot / Cobot: Cobot applications contrast with traditional industrial r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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