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NOAAS John N. Cobb (R 552)
NOAA Ship ''John N. Cobb'' (R 552) was a National Oceanic and Atmospheric Administration research vessel in commission from 1970 to 2008. She was named for John Nathan Cobb and was the oldest commissioned ship in the NOAA ships and aircraft, NOAA fleet when she was decommissioned, having previously served in the United States Department of the Interior′s Fish and Wildlife Service from 1950 to 1956 and in the United States Fish and Wildlife Service′s Bureau of Commercial Fisheries from 1956 to 1970 as US FWS ''John N. Cobb'' (FWS 1601). Construction and commissioning W. C. Nickum and Sons designed ''John N. Cobb'' based on a United States West Coast, West Coast purse-seiner design. The Fish and Wildlife Service (FWS) funded her construction using US$150,000 ifrom the sale of the FWS fisheries research vessel ''Washington'', and the Western Boatbuilding Company constructed her in Tacoma, Washington, Tacoma, Washington (state), Washington. She was Ceremonial ship launching, launc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compression (physics), compression; thus, the diesel engine is called a 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). Introduction Diesel engines work by compressing only air, or air combined with 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 air temperature inside the Cylinder (engine), cylinder so that atomised diesel fuel injected into the combustion chamber ignites. The torque a dies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceremonial Ship Launching
Ceremonial ship launching involves the performing of ceremonies associated with the process of transferring a vessel to the water. It is a nautical tradition in many cultures, dating back millennia, to accompany the physical process with ceremonies which have been observed as public celebration and a solemn blessing, usually but not always, in association with the launch itself. Ship launching imposes stresses on the ship not met during normal operation and in addition to the size and weight of the vessel represents a considerable engineering challenge as well as a public spectacle. The process also involves Sailors' superstitions, many traditions intended to invite good luck, such as baptism#Boats and ships, christening by breaking a sacrificial bottle of champagne over the bow (ship), bow as the ship is named aloud and launched. Methods There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching". The ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purse-seiner
Seine fishing (or seine-haul fishing; ) is a method of fishing that employs a surrounding net, called a seine, that hangs vertically in the water with its bottom edge held down by weights and its top edge buoyed by floats. Seine nets can be deployed from the shore as a beach seine, or from a boat. Boats deploying seine nets are known as seiners. Two main types of seine net are deployed from seiners: ''purse seines'' and ''Danish seines''. A seine differs from a gillnet, in that a seine encloses fish, where a gillnet directly snares fish. Etymology The word ''seine'' has its origins in the Old English ''segne'', which entered the language via Latin ''sagena'', from the original Greek σαγήνη ''sagēnē'' (a drag-net). History Seines have been used widely in the past, including by Stone Age societies. For example, the Māori used large canoes to deploy seine nets which could be over a kilometer long. The nets were woven from green flax, with stone weights and light wood or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States West Coast
The West Coast of the United States, also known as the Pacific Coast and the Western Seaboard, is the coastline along which the Western United States meets the North Pacific Ocean. The term typically refers to the contiguous U.S. states of California, Oregon, and Washington, but it occasionally includes Alaska and Hawaii in bureaucratic usage. For example, the U.S. Census Bureau considers both states to be part of a larger U.S. geographic division. Definition There are conflicting definitions of which states comprise the West Coast of the United States, but the West Coast always includes California, Oregon, and Washington as part of that definition. Under most circumstances, however, the term encompasses the three contiguous states and Alaska, as they are all located in North America. For census purposes, Hawaii is part of the West Coast, along with the other four states. ''Encyclopædia Britannica'' refers to the North American region as part of the Pacific Coast, including A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of The Interior
The United States Department of the Interior (DOI) is an United States federal executive departments, executive department of the Federal government of the United States, U.S. federal government responsible for the management and conservation of most federal lands and natural resources. It also administers programs relating to Native Americans in the United States, Native Americans, Alaska Natives, Native Hawaiians, territorial affairs, and insular areas of the United States, as well as programs related to historic preservation. About 75% of federal public land is managed by the department, with most of the remainder managed by the United States Department of Agriculture, Department of Agriculture's United States Forest Service, Forest Service. The department was created on March 3, 1849. It is headquartered at the Main Interior Building, located at 1849 C Street Northwest, Washington, D.C., NW in Washington, D.C. The department is headed by the United States Secretary of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NOAA Ships And Aircraft
The Office of Marine and Aviation Operations (OMAO) is a division of the National Oceanic and Atmospheric Administration (NOAA) which operates a wide variety of specialized ships and aircraft to carry out the environmental and scientific missions of NOAA. Administration NOAA′s Office of Marine and Aviation Operations (OMAO) operates NOAA′s aircraft and ships. OMAO also manages the NOAA Small Boat Program and the NOAA Diving Program, the latter having as part of its mission the job of ensuring a level of diving skill conducive to safe and efficient operations in NOAA-sponsored underwater activities. A National Oceanic and Atmospheric Administration Commissioned Officer Corps (NOAA Corps) rear admiral serves as both the director of the NOAA Corps and of OMAO. A NOAA Corps rear admiral (lower half) serves as the director of the Marine and Aviation Operations Centers. Manning and resource management NOAA's aircraft and ships are operated and managed by a combination of NOA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Nathan Cobb
John Nathan Cobb (February 20, 1868 – January 13, 1930) was an American author, naturalist, conservationist, canneryman, and educator. He attained a high position in academia without the benefit of a college education. In a career that began as a printer's aide for a newspaper, he worked as a stenographer and clerk, a newspaper reporter, a field agent for the U.S. Fish Commission (USFC) and its successor the U.S. Bureau of Fisheries, as an editor for a commercial fishing trade magazine of the Pacific Northwest, and as a supervisor for companies in the commercial fishing industry. He took photographs during his extensive travels documenting scenes and people. In 1919, Cobb was appointed the founding director of the College of Fisheries at the University of Washington (UW), the first such college established in the United States. Early life and education John Nathan Cobb was born in Oxford, New Jersey, on February 20, 1868, the son of Samuel Spencer Cobb (1842‒1921), a rai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Vessel
A research vessel (RV or R/V) is a ship or boat designed, modified, or equipped to carry out research at sea. Research vessels carry out a number of roles. Some of these roles can be combined into a single vessel but others require a dedicated vessel. Due to the demanding nature of the work, research vessels may be constructed around an icebreaker hull, allowing them to operate in polar waters. History The research ship had origins in the early voyages of exploration. By the time of James Cook's ''Endeavour'', the essentials of what today we would call a research ship are clearly apparent. In 1766, the Royal Society hired Cook to travel to the Pacific Ocean to observe and record the transit of Venus across the Sun. The ''Endeavour'' was a sturdy vessel, well designed and equipped for the ordeals she would face, and fitted out with facilities for her "research personnel", Joseph Banks. As is common with contemporary research vessels, ''Endeavour'' also carried out more t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Power
Electric power is the rate of transfer of electrical energy within a electric circuit, circuit. Its SI unit is the watt, the general unit of power (physics), power, defined as one joule per second. Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively. In common parlance, electric power is the production and delivery of electrical energy, an essential public utility in much of the world. Electric power is usually produced by electric generators, but can also be supplied by sources such as Electric battery, electric batteries. It is usually supplied to businesses and homes (as domestic mains electricity) by the electric power industry through an electrical grid. Electric power can be delivered over long distances by electric power transmission, transmission lines and used for applications such as Electric motor, motion, Electric light, light or Electric heat, heat with high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientist
A scientist is a person who Scientific method, researches to advance knowledge in an Branches of science, area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. Though Thales ( 624–545 BC) was arguably the first scientist for describing how cosmic events may be seen as natural, not necessarily caused by gods,Frank N. Magill''The Ancient World: Dictionary of World Biography'', Volume 1 Routledge, 2003 it was not until the 19th century in science, 19th century that the term ''scientist'' came into regular use after it was coined by the theologian, philosopher, and historian of science William Whewell in 1833. History The roles of "scientists", and their predecessors before the emergence of modern scientific disciplines, have evolved considerably over time. Scientists of different er ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engineer
Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while considering the limitations imposed by practicality, regulation, safety and cost. "Science is knowledge based on our observed facts and tested truths arranged in an orderly system that can be validated and communicated to other people. Engineering is the creative application of scientific principles used to plan, build, direct, guide, manage, or work on systems to maintain and improve our daily lives." The word ''engineer'' (Latin , the origin of the Ir. in the title of engineer in countries like Belgium, The Netherlands, and Indonesia) is derived from the Latin words ("to contrive, devise") and ("cleverness"). The foundational qualifications of a licensed professional engineer typically include a four-year Bachelor of Engineering, bache ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
