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Yamal (icebreaker)
''Yamal'' () is a Russian nuclear-powered icebreaker operated by Atomflot (formerly by the Murmansk Shipping Company). She is named after the Yamal Peninsula in Northwest Siberia; the name means ''End of the Land'' in Nenets. Laid down in Leningrad in 1986, and commissioned in October 1992, after the breakup of the Soviet Union, she filled her designed role of keeping shipping lanes open and also carried passengers on Arctic excursions. In July 1994 ''Yamal'' took an excursion to the North Pole, with the NSF (National Science Foundation – US), to celebrate the official maiden voyage. While at the exact North Pole (verified by GPS & Inmarsat satellite coordinates) the crew and passengers celebrated with a barbeque – the ambient temperature was (wind gusts were measured at ). Because of the ship 90/90 coordinates the ship captain (Smirnov) organized a swimming party with Will Rountree (US) being recorded as the first person to ever swim there (21 July 1994) – water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icebreaking
An icebreaker is a special-purpose ship or boat designed to move and navigate through ice-covered waters, and provide safe waterways for other boats and ships. Although the term usually refers to ice-breaking ships, it may also refer to smaller vessels, such as the icebreaking boats that were once used on the canals of the United Kingdom. For a ship to be considered an icebreaker, it requires three traits most normal ships lack: a strengthened hull, an ice-clearing shape, and the power to push through sea ice. Icebreakers clear paths by pushing straight into frozen-over water or pack ice. The bending strength of sea ice is low enough that the ice breaks usually without noticeable change in the vessel's trim. In cases of very thick ice, an icebreaker can drive its bow onto the ice to break it under the weight of the ship. A buildup of broken ice in front of a ship can slow it down much more than the breaking of the ice itself, so icebreakers have a specially designed hull to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Pole-36
North Pole-36 (') was the 36th Russian manned drifting station, primarily used for Arctic research from September 2008 until August 2009. History The station was opened on September 7, 2008. The primary objective of the station was to improve the quality of weather forecasts and to study global processes of climate change. Work was carried out on environment monitoring, and research in the fields of meteorology, oceanology, glaciology, and aerology was carried out. The expedition consisted of 18 polar explorers, several dogs, and more than 150 tons of cargo. The station-master was Yuri Katraev. NP-36 station settled down on a piece of sea ice that was approximately across. At the moment of disembarkation the station was in "the Hollow of submariners" between Wrangel Island and the North Pole. The vessel '' Akademik Fyodorov'' carried out the delivery of the expedition to the ice. The station was removed with the nuclear icebreaker NS ''Yamal'' in the Arctic Ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel Laying
Laying the keel or laying down is the formal recognition of the start of a shipbuilding, ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one of the four specially celebrated events in a ship's life; the others are Ceremonial ship launching, launching, Ship commissioning, commissioning, and Ship decommissioning, decommissioning. Earlier, the event recognized as the keel laying was the initial placement of the central timber making up the backbone of a vessel, called the keel. As steel ships replaced wooden ones, the central timber gave way to a central steel beam. Modern ships are most commonly built in a series of pre-fabricated, complete hull sections rather than around a single keel. The event recognized as the keel laying is the first joining of modular components, or the lowering of the first module into place in the building dock. It is now often called "keel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zodiac (boat)
Zodiac Nautic, formerly Zodiac Marine & Pool, then Zodiac Marine, is a French company known for their inflatable boats. Originating as an airship company, the boating division was split off from the aerospace-focused Zodiac Group in 2007. In France, "''zodiac''" has become a genericized trademark for an inflatable boat. History Origins, and as part of the Zodiac Group Zodiac originated with the ''Société française de ballons dirigeables et d’aviation Zodiac'' (Zodiac airships and aviation French company), which specialized in the production of airships. In the late 1930s, one of its engineers, Pierre Debroutelle, invented one of the first prototypes of inflatable boats. In 1937, the Aéronavale, the French Naval Air Force, commissioned several boats from Zodiac. The company started marketing to the general public in 1949. Zodiac received publicity in late 1952 after Alain Bombard made a crossing of the Atlantic in a production model of a Zodiac inflatable boat called ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. Types of friction include dry, fluid, lubricated, skin, and internal -- an incomplete list. The study of the processes involved is called tribology, and has a history of more than 2000 years. Friction can have dramatic consequences, as illustrated by the use of friction created by rubbing pieces of wood together to start a fire. Another important consequence of many types of friction can be wear, which may lead to performance degradation or damage to components. It is known that frictional energy losses account for about 20% of the total energy expenditure of the world. As briefly discussed later, there are many different contributors to the retarding force in friction, ranging from asperity deformation to the generation of charges and changes in local structure. When two bodies in contact move relative to each other, due to these variou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymer
A polymer () is a chemical substance, substance or material that consists of very large molecules, or macromolecules, that are constituted by many repeat unit, repeating subunits derived from one or more species of monomers. Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in everyday life. Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental to biological structure and function. Polymers, both natural and synthetic, are created via polymerization of many small molecules, known as monomers. Their consequently large molecular mass, relative to small molecule compound (chemistry), compounds, produces unique physical property, physical properties including toughness, high rubber elasticity, elasticity, viscoelasticity, and a tendency to form Amorphous solid, amorphous and crystallization of polymers, semicrystalline structures rath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double Hull
A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some distance inboard, typically by a few feet, which forms a redundant barrier to seawater in case the outer hull is damaged and leaks. The space between the two hulls is sometimes used for storage of ballast water. Double hulls are a more extensive safety measure than double bottoms, which have two hull layers only in the bottom of the ship but not the sides. In low-energy collisions, double hulls can prevent flooding beyond the penetrated compartment. In high-energy collisions, however, the distance to the inner hull is not sufficient and the inner compartment is penetrated as well. Double hulls or double bottoms have been required in all passenger ships for decades as part of the Safety Of Life At Sea or SOLAS Convention. Uses Double hul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewis Gordon Pugh
Lewis William Gordon Pugh, OIG, (born 5 December 1969) is a British-South African endurance swimmer and ocean advocate. Dubbed the "Sir Edmund Hillary of swimming", he is the first person to complete a long-distance swim in every ocean of the world, and he frequently swims in vulnerable ecosystems to draw attention to their plight. Pugh is known for undertaking the first swim across the North Pole in 2007 with the aim of highlighting the melting of the Arctic sea ice. In 2010 he swam across a glacial lake on Mount Everest, to draw attention to the melting of the glaciers in the Himalayas and the impact the reduced water supply would have on peace in the region. In 2018 he swam the full length of the English Channel to call for 30% of the world's oceans to be protected by 2030. Pugh was named a Young Global Leader by the World Economic Forum in 2010 and the United Nations appointed him as the first UN Patron of the Oceans in 2013. In 2016 Pugh played a role in creating the lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Captain
A sea captain, ship's captain, captain, master, or shipmaster, is a high-grade licensed mariner who holds ultimate command and responsibility of a merchant vessel. The captain is responsible for the safe and efficient operation of the ship, including its seaworthiness, safety and security, cargo operations, navigation, crew management, and legal compliance, and for the persons and cargo on board. Duties and functions The captain ensures that the ship complies with local and international laws and complies also with company and flag state policies. The captain is ultimately responsible, under the law, for aspects of operation such as the safe navigation of the ship, its cleanliness and seaworthiness, safe handling of all cargo, management of all personnel, inventory of ship's cash and stores, and maintaining the ship's certificates and documentation. One of a shipmaster's particularly important duties is to ensure compliance with the vessel's security plan, as required by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Science Foundation
The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National Institutes of Health. With an annual budget of about $9.9 billion (fiscal year 2023), the NSF funds approximately 25% of all federally supported basic research conducted by the List of American institutions of higher education, United States' colleges and universities. In some fields, such as mathematics, computer science, economics, and the social sciences, the NSF is the major source of federal backing. NSF's director and deputy director are appointed by the president of the United States and Advice and consent, confirmed by the United States Senate, whereas the 24 president-appointed members of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Pole
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where the Earth's rotation, Earth's axis of rotation meets its surface. It is called the True North Pole to distinguish from the North magnetic pole, Magnetic North Pole. The North Pole is by definition the northernmost point on the Earth, lying antipode (geography), antipodally to the South Pole. It defines geodetic latitude 90° North, as well as the direction of true north. At the North Pole all directions point south; all lines of longitude converge there, so its longitude can be defined as any degree value. No time zone has been assigned to the North Pole, so any time can be used as the local time. Along tight latitude circles, counterclockwise is east and clockwise is west. The North Pole is at the center of the Northern Hemisphere. The nearest land is usually said to be Kaffeklubben Island, off the northern coast of Greenland about away, though ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
