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Storm Oil
Storm oil is described as nearly water-insoluble oil acting as a surfactant, and has been used since ancient times to smooth ocean waves. It has been historically employed to facilitate sea rescues and improve navigational safety, involving pouring the oil onto the ocean surface to reduce wave intensity. The nearly immiscible spilled oil acts as a surfactant, accumulating on the surface, and as waves locally stretch or compress, it leads to a concentration gradient inducing tangential shear forces leading to extra dissipation and damping. The phenomena were later discovered and scientifically explored by figures such as Benjamin Franklin, John William Strutt, 3rd Baron Rayleigh, Lord Rayleigh, and Agnes Pockels, collectively deepening the scientific knowledge of surface tension and wave dynamics. Description Steamships and Lifeboat (shipboard), lifeboats from many countries were required to carry them until the end of the 20th century. The United States Maritime Service Training M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PSM V43 D519 Heaped Oil Creates Increased Surface Tension To Prevent Wave Formation
PSM, an acronym, may refer to: Organizations * Pakistan School Muscat, a Pakistani co-educational institute in Oman * Palestine Solidarity Movement, a student organization in the United States * Panhellenic Socialist Movement, a centre-left party in Greece * Parti Socialiste Mauricien, a political party in Mauritius, founded by Harish Boodhoo * Parti Sosialis Malaysia, a socialist political party in Malaysia * Sepaktakraw Association of Malaysia (; PSM), a national governing body in Malaysia * Photographic Society of Madras, a not for profit organisation involved in promoting photography, in Chennai * PlayStation: The Official Magazine, a magazine originally known as PlayStation Magazine or PSM * Ponce School of Medicine, a post-graduate medical school located in Ponce, Puerto Rico * Power Systems Manufacturing, a subsidiary of Alstom, specializing in aftermarket gas turbine servicing for power generating industry. * ''Poznańska Spółdzielnia Mieszkaniowa'', a housing cooperativ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aristotle
Aristotle (; 384–322 BC) was an Ancient Greek philosophy, Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, and the arts. As the founder of the Peripatetic school of philosophy in the Lyceum (classical), Lyceum in Athens, he began the wider Aristotelianism, Aristotelian tradition that followed, which set the groundwork for the development of modern science. Little is known about Aristotle's life. He was born in the city of Stagira (ancient city), Stagira in northern Greece during the Classical Greece, Classical period. His father, Nicomachus (father of Aristotle), Nicomachus, died when Aristotle was a child, and he was brought up by a guardian. At around eighteen years old, he joined Plato's Platonic Academy, Academy in Athens and remained there until the age of thirty seven (). Shortly after Plato died, Aristotle left Athens and, at the request ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Navigation
The history of navigation, or the history of seafaring, is the art of directing vessels upon the open sea through the establishment of its position and course by means of traditional practice, geometry, astronomy, or special instruments. Many peoples have excelled as seafarers, prominent among them the Austronesians ( Islander Southeast Asians, Malagasy, Islander Melanesians, Micronesians, and Polynesians), the Harappans, the Phoenicians, the Iranians, the ancient Greeks, the Romans, the Arabs, the ancient Indians, the Norse, the Chinese, the Venetians, the Genoese, the Hanseatic Germans, the Portuguese, the Spanish, the English, the French, the Dutch, and the Danes. Antiquity Indo-Pacific Navigation in the Indo-Pacific began with the maritime migrations of the Austronesians from Taiwan who spread southwards into Island Southeast Asia and Island Melanesia during a period between 3000 and 1000 BC. Their first long-distance voyaging was the colonization of Micr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Office Of Response And Restoration
The Office of Response and Restoration (OR&R) is a program office of the National Ocean Service and a natural resource trustee that protects the coastal environment from oil and hazardous material releases and restores damage caused by such releases. Oil and Chemical Spill Response The Office of Response and Restoration's (OR&R) interdisciplinary scientific spill team responds to oil and chemical spills and other emergencies, providing critical advice for federal response efforts. Scientists forecast the movement and behavior of spilled oil and chemicals, evaluate the risk to natural resources, recommend appropriate cleanup actions, and initiate natural resource damage assessments. OR&R strengthens the nation's response capabilities by conducting research, monitoring impacted areas, developing software products and technical guidance, and conducting preparedness activities through training and event simulation. OR&R also represents the Department of Commerce on the National Respo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Strutt, 4th Baron Rayleigh
Robert John Strutt, 4th Baron Rayleigh (28 August 1875 – 13 December 1947) was a British peer and physicist. He discovered "active nitrogen" and was the first to distinguish the glow of the night sky. Early life and education Strutt was born at Terling Place, the family home near Witham, Essex, the eldest son of John William Strutt, 3rd Baron Rayleigh and his wife Evelyn Georgiana Mary (). He was thus a nephew of Arthur Balfour and of Eleanor Mildred Sidgwick. He was educated at Eton College and Trinity College, Cambridge, where he initially read mathematics, but changed after two terms to Natural Sciences.A. C. Egerton, 'Strutt, Robert John, fourth Baron Rayleigh (1875–1947)', rev. Isobel Falconer He became a research student in physics at the Cavendish Laboratory under J. J. Thomson, whose biography he subsequently wrote. His work at this time was on discharge of electricity through gases, including early work on x-rays and electrons. He wrote one of the first book ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society
The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, recognising excellence in science, supporting outstanding science, providing scientific advice for policy, education and public engagement and fostering international and global co-operation. Founded on 28 November 1660, it was granted a royal charter by Charles II of England, King Charles II and is the oldest continuously existing scientific academy in the world. The society is governed by its Council, which is chaired by the society's president, according to a set of statutes and standing orders. The members of Council and the president are elected from and by its Fellows, the basic members of the society, who are themselves elected by existing Fellows. , there are about 1,700 fellows, allowed to use the postnominal title FRS (Fellow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Pringle (physician)
Sir John Pringle, 1st Baronet (10 April 1707 – 18 January 1782) was a Scottish physician who has been described as the "father of military medicine" alongside Ambroise Paré and Jonathan Letterman. Biography Youth and early career John Pringle was the youngest son of Sir John Pringle, 2nd Baronet, of Stichill, Roxburghshire (1662–1721), by his spouse Magdalen (d. December 1739), daughter of Sir Gilbert Eliott, 3rd Baronet, of Stobs. He was educated at St Andrews, at Edinburgh, and at Leiden. In 1730 he graduated with a degree of Doctor of Physic at the last-named university, where he was an intimate friend of Gerard van Swieten and Albrecht von Haller. He settled in Edinburgh at first as a physician, but between 1733 and 1744 was also Professor of Moral Philosophy at Edinburgh University. In 1742 he became physician to the Earl of Stair, then commanding the British army in Flanders. About the time of the battle of Dettingen in Bavaria in June 1743, when the Brit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Brownrigg
William Brownrigg ( – 6 January 1800) was an English physician and scientist who practised at Whitehaven in Cumberland. While there, Brownrigg carried out experiments that earned him the Copley Medal in 1766 for his work on carbonic acid gas. He was the first person to recognise platinum as a new element. He was created a Fellow of the Royal Society. Early life and education He was born at High Close Hall near Plumbland, the son of local gentry, George Brownrigg. William's mother, Mary Brownrigg, was from Ireland. William was educated in Latin and Greek by a local clergyman from the age of 13 and by the age of 15 was an apprentice to an apothecary in Carlisle. Then followed two years studying under a surgeon in London before going to Leiden where he studied under Boerhaave, 's Gravesande, van Royen and Albinus. He graduated in 1737 with his thesis "De Praxi Medica Ineunda" – about the environment where the clinician practises medicine. He gained the degree of Doctor of M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derwentwater
Derwentwater, or Derwent Water, is a lake in the Lake District in North West England, immediately south of Keswick, Cumbria, Keswick. It is in the unitary authority of Cumberland (unitary authority), Cumberland within the ceremonial county of Cumbria. It is the third largest lake by area, after Windermere and Ullswater. It has a length of , a maximum width of , and an area of . Its primary inflow and outflow is the River Derwent, Cumbria, River Derwent, which also flows through Bassenthwaite Lake before reaching the Irish Sea at Workington. There are several islands within the lake, one of which is inhabited. Derwentwater is a place of considerable scenic value. It is surrounded by hills (known locally as fells), and many of the slopes facing Derwentwater are extensively wooded. A regular passenger launch operates on the lake, taking passengers between various landing stages. There are seven lakeside marinas, the most popular stops being Keswick, Portinscale and the Lodore Fall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whaling
Whaling is the hunting of whales for their products such as meat and blubber, which can be turned into a type of oil that was important in the Industrial Revolution. Whaling was practiced as an organized industry as early as 875 AD. By the 16th century, it had become the principal industry in the Basque coastal regions of Spain and France. The whaling industry spread throughout the world and became very profitable in terms of trade and resources. Some regions of the world's oceans, along the animals' migration routes, had a particularly dense whale population and became targets for large concentrations of whaling ships, and the industry continued to grow well into the 20th century. The depletion of some whale species to near extinction led to the banning of whaling in many countries by 1969 and to an international cessation of whaling as an industry in the late 1980s. Archaeological evidence suggests the earliest known forms of whaling date to at least 3000 BC, practiced by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliny The Elder
Gaius Plinius Secundus (AD 23/24 79), known in English as Pliny the Elder ( ), was a Roman Empire, Roman author, Natural history, naturalist, and naval and army commander of the early Roman Empire, and a friend of the Roman emperor, emperor Vespasian. He wrote the encyclopedic (''Natural History''), a comprehensive thirty-seven-volume work covering a vast array of topics on human knowledge and the natural world, which became an editorial model for encyclopedias. He spent most of his spare time studying, writing, and investigating natural and geographic phenomena in the field. Among Pliny's greatest works was the twenty-volume ''Bella Germaniae'' ("The History of the German Wars"), which is Lost literary work, no longer extant. ''Bella Germaniae'', which began where Aufidius Bassus' ''Libri Belli Germanici'' ("The War with the Germans") left off, was used as a source by other prominent Roman historians, including Plutarch, Tacitus, and Suetonius. Tacitus may have used ''Bella Ger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Oil
Fish oil is oil derived from the tissues of oily fish. Fish oils contain the omega−3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), precursors of certain eicosanoids that are known to reduce inflammation in the body and improve hypertriglyceridemia. There has been a great deal of controversy in the 21st century about the role of fish oil in cardiovascular disease, with recent meta-analyses reaching different conclusions about its potential impact. The fish used as sources do not actually produce omega−3 fatty acids. Instead, the fish accumulate the acids by consuming either microalgae or prey fish that have accumulated omega−3 fatty acids. Fatty predatory fish like sharks, swordfish, tilefish, and albacore tuna may be high in omega−3 fatty acids, but due to their position at the top of the food chain, these species may also accumulate toxic substances through biomagnification. For this reason, the United States Environmental Protection Age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
