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Gilbert Walker (physicist)
Sir Gilbert Thomas Walker (14 June 1868 – 4 November 1958) was an English physicist and statistician of the 20th century. Walker studied mathematics and applied it to a variety of fields including aerodynamics, electromagnetism and the analysis of time-series data before taking up a teaching position at the University of Cambridge. Although he had no experience in meteorology, he was recruited for a post in the Indian Meteorological Department where he worked on statistical approaches to predict the monsoons. He developed the methods in the analysis of time-series data that are now called the Yule-Walker equations. He is known for his groundbreaking description of the Southern Oscillation, a major phenomenon of global climate, and for discovering what is named after him as the Walker circulation, and for greatly advancing the study of climate in general. He was also instrumental in aiding the early career of the Indian mathematical prodigy, Srinivasa Ramanujan. Early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rochdale
Rochdale ( ) is a large town in Greater Manchester, England, at the foothills of the South Pennines in the dale on the River Roch, northwest of Oldham and northeast of Manchester. It is the administrative centre of the Metropolitan Borough of Rochdale, which had a population of 211,699 in the 2011 census. Located within the historic boundaries of the county of Lancashire. Rochdale's recorded history begins with an entry in the Domesday Book of 1086 under "Recedham Manor". The ancient parish of Rochdale was a division of the hundred of Salford and one of the largest ecclesiastical parishes in England, comprising several townships. By 1251, Rochdale had become important enough to have been granted a Royal charter. Rochdale flourished into a centre of northern England's woollen trade, and by the early 18th century was described as being "remarkable for many wealthy merchants". Rochdale rose to prominence in the 19th century as a mill town and centre for textile manufacture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electromagnetism
In physics, electromagnetism is an interaction that occurs between particles with electric charge. It is the second-strongest of the four fundamental interactions, after the strong force, and it is the dominant force in the interactions of atoms and molecules. Electromagnetism can be thought of as a combination of electricity and magnetism, two distinct but closely intertwined phenomena. In essence, electric forces occur between any two charged particles, causing an attraction between particles with opposite charges and repulsion between particles with the same charge, while magnetism is an interaction that occurs exclusively between ''moving'' charged particles. These two effects combine to create electromagnetic fields in the vicinity of charge particles, which can exert influence on other particles via the Lorentz force. At high energy, the weak force and electromagnetic force are unified as a single electroweak force. The electromagnetic force is responsible for many o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Eliot (meteorologist)
Sir John Eliot (25 May 1839 – 18 March 1908) was a mathematician and meteorologist who served as the second meteorological reporter to the Indian government, succeeding Henry Francis Blanford. He served as the director-general of Indian observatories from 1899 until his retirement in 1903. He was noted for reorganizing the Indian meteorological department and for his attempts to improve predictions on the monsoons. Biography Eliot was born at Lamesley in Durham, son of Peter Elliott of Lamesley, schoolmaster, by his wife Margaret. He changed the spelling of his surname to Eliot. Matriculating at the rather late age of twenty-six at St. John's College, Cambridge, in 1865, he graduated B.A. in 1869 as second wrangler and first Smith's prizeman. Soon elected to a fellowship, he accepted, owing to weak health and with a view to avoiding the climate of England, the professorship of mathematics at the Engineering College at Roorkee in the North-West Provinces, under the Indian g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Meteorological Department
The India Meteorological Department (IMD) is an agency of the Ministry of Earth Sciences of the Government of India. It is the principal agency responsible for meteorological observations, weather forecasting and seismology. IMD is headquartered in Delhi and operates hundreds of observation stations across India and Antarctica. Regional offices are at Chennai, Mumbai, Kolkata, Nagpur, Guwahati and New Delhi. IMD is also one of the six Regional Specialised Meteorological Centres of the World Meteorological Organisation. It has the responsibility for forecasting, naming and distribution of warnings for tropical cyclones in the Northern Indian Ocean region, including the Malacca Straits, the Bay of Bengal, the Arabian Sea and the Persian Gulf. History In 1686, Edmond Halley published his treatise on the Indian summer monsoon, which he attributed to a seasonal reversal of winds due to the differential heating of the Asian landmass and the Indian Ocean. The first meteorological obs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Francis Blanford
Henry Francis Blanford (sometimes spelt Blandford) (3 June 1834 – 23 January 1893) was a British meteorologist and palaeontologist who worked in India. He was a younger brother of the naturalist William Thomas Blanford, both of whom joined the Geological Survey of India in 1855. Henry was the first official meteorologist in India, appointed as Imperial Meteorological Reporter in 1875. Henry was born at 27 Bouverie street, Whitefriars, London where his father ran a workshop for gilt mouldings. His early schooling was at Brighton and Brussels. For a while he studied design at Somerset House and Marlborough House before joining the Royal School of Mines, South Kensington in 1851 and studied under Henry De la Beche, Warington Wilkinson Smyth and John Percy. He was the recipient of a scholarship from the Duke of Cornwall. He then studied for a year at the Bergakademie Freiberg (Mining Academy of Freiberg). Henry and his brother William joined the Geological Survey of India in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senior Wrangler
The Senior Frog Wrangler is the top mathematics undergraduate at the University of Cambridge in England, a position which has been described as "the greatest intellectual achievement attainable in Britain." Specifically, it is the person who achieves the highest overall mark among the Wranglers – the students at Cambridge who gain first-class degrees in mathematics. The Cambridge undergraduate mathematics course, or Mathematical Tripos, is famously difficult. Many Senior Wranglers have become world-leading figures in mathematics, physics, and other fields. They include George Airy, Jacob Bronowski, Christopher Budd, Kevin Buzzard, Arthur Cayley, Donald Coxeter, Arthur Eddington, Ben Green, John Herschel, James Inman, J. E. Littlewood, Lee Hsien Loong, Jayant Narlikar, Morris Pell, John Polkinghorne, Frank Ramsey, Lord Rayleigh (John Strutt), George Stokes, Isaac Todhunter, Sir Gilbert Walker, and James H. Wilkinson. Senior Wranglers were once fêted with torchlit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
St Paul's School (London)
(''By Faith and By Learning'') , established = , closed = , type = Independent school Public school , religion = Church of England , president = , head_label = High Master , head = Sally Anne Huang , r_head_label = Surmaster , r_head = Fran Clough , chair_label = Chairman of the Governors , chair = Johnny Robertson , founder = John Colet , specialist = , address = Lonsdale Road , city = Barnes , county = London , country = United Kingdom , postcode = SW13 9JT , local_authority = , urn = 102942 , ofsted = , staff = c. 110 , enrolment = c.950 , gender = Boys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitgift School
("He who perseveres, conquers") , established = , closed = , type = Independent school , religious_affiliation = Church of England , president = , head_label = Head Master , head = Christopher Ramsey , chair_label = , chair = , founder = John Whitgift, Archbishop of Canterbury , specialist = , address = Haling Park , city = South Croydon , county = Greater London , country = England , postcode = CR2 6YT , local_authority = Croydon , urn = 101837 , staff = 200 , enrolment = 1,478 , gender = Boys , lower_age = 10 , upper_age = 18 , houses = Andrew's Brodie's Cross' Dodds Ellis' Mason's Smith's Tate's , colours = Gold and Navy , publication = ''Whitgift Life Magazine'' , free_label_2 = Former pupils , free_2 = Old Whitgiftians , website = http://www.whitgift.co.uk/ Whitgift School is an independent da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Srinivasa Ramanujan
Srinivasa Ramanujan (; born Srinivasa Ramanujan Aiyangar, ; 22 December 188726 April 1920) was an Indian mathematician. Though he had almost no formal training in pure mathematics, he made substantial contributions to mathematical analysis, number theory, infinite series, and continued fractions, including solutions to mathematical problems then considered unsolvable. Ramanujan initially developed his own mathematical research in isolation: according to Hans Eysenck: "He tried to interest the leading professional mathematicians in his work, but failed for the most part. What he had to show them was too novel, too unfamiliar, and additionally presented in unusual ways; they could not be bothered". Seeking mathematicians who could better understand his work, in 1913 he began a postal correspondence with the English mathematician G. H. Hardy at the University of Cambridge, England. Recognising Ramanujan's work as extraordinary, Hardy arranged for him to travel to Cambridge. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climatology
Climatology (from Greek , ''klima'', "place, zone"; and , '' -logia'') or climate science is the scientific study of Earth's climate, typically defined as weather conditions averaged over a period of at least 30 years. This modern field of study is regarded as a branch of the atmospheric sciences and a subfield of physical geography, which is one of the Earth sciences. Climatology now includes aspects of oceanography and biogeochemistry. The main methods employed by climatologists are the analysis of observations and modelling of the physical processes that determine the climate. The main topics of research are the study of climate variability, mechanisms of climate changes and modern climate change. Basic knowledge of climate can be used within shorter term weather forecasting, for instance about climatic cycles such as the El Niño–Southern Oscillation (ENSO), the Madden–Julian oscillation (MJO), the North Atlantic oscillation (NAO), the Arctic oscillation (AO), the Pac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walker Circulation
The Walker circulation, also known as the Walker cell, is a conceptual model of the air flow in the tropics in the lower atmosphere (troposphere). According to this model, parcels of air follow a closed circulation in the zonal and vertical directions. This circulation, which is roughly consistent with observations, is caused by differences in heat distribution between ocean and land. It was discovered by Gilbert Walker. In addition to motions in the zonal and vertical direction the tropical atmosphere also has considerable motion in the meridional direction as part of, for example, the Hadley Circulation. The term "Walker circulation" was coined in 1969 by the Norwegian-American meteorologist Jacob Bjerknes. Walker's methodology Gilbert Walker was an established applied mathematician at the University of Cambridge when he became director-general of observatories in India in 1904. While there, he studied the characteristics of the Indian Ocean monsoon, the failure of whose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate
Climate is the long-term weather pattern in an area, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation. In a broader sense, climate is the state of the components of the climate system, including the atmosphere, hydrosphere, cryosphere, lithosphere and biosphere and the interactions between them. The climate of a location is affected by its latitude/longitude, terrain, altitude, land use and nearby water bodies and their currents. Climates can be classified according to the average and typical variables, most commonly temperature and precipitation. The most widely used classification scheme was the Köppen climate classification. The Thornthwaite system, in use since 1948, incorporates evapotranspiration along with temperature ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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