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John W. Sullivan
John W. Sullivan was an Irish-Canadian mathematician, astronomer, and explorer who took part in the Palliser Expedition in the 19th century. Biography Sullivan taught at the Royal Naval College in Greenwich, England. On the recommendation of fellow Naval College faculty member Edward Purcell, he became the astronomer and secretary on the Palliser Expedition that explored and surveyed what is now western Canada from 1857 to 1860. As part of his explorations, Sullivan described the Nakoda people, and was the first to record the Sarcee language. Legacy Mount Sullivan, a peak near Dease Lake (British Columbia) Dease Lake is a lake in the Stikine Plateau of the Northern Interior of British Columbia, Canada, located at the head of the Dease River, which flows north then northeast from the lake to join the Liard River. The community of Dease Lake, Bri ..., is named after Sullivan.. References 19th-century Irish mathematicians Canadian explorers Year of birth missing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History One of the earliest known mathematicians were Thales of Miletus (c. 624–c.546 BC); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales' Theorem. The number of known mathematicians grew when Pythagoras of Samos (c. 582–c. 507 BC) established the Pythagorean School, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman mathematician recorded by history was Hypati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, galaxies – in either observational astronomy, observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, Sun, solar astronomy, the Star formation, origin or stellar evolution, evolution of stars, or the galaxy formation and evolution, formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational astronomy, observational and theoretical astronomy, theoretical. Observational astronomers make direct observations of Astronomical object, celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explorer
Exploration refers to the historical practice of discovering remote lands. It is studied by geographers and historians. Two major eras of exploration occurred in human history: one of convergence, and one of divergence. The first, covering most of ''Homo sapiens'' history, saw humans moving out of Africa, settling in new lands, and developing distinct cultures in relative isolation. Early explorers settled in Europe and Asia; 14,000 years ago, some crossed the Ice Age land bridge from Siberia to Alaska, and moved southbound to settle in the Americas. For the most part, these cultures were ignorant of each other's existence. The second period of exploration, occurring over the last 10,000 years, saw increased cross-cultural exchange through trade and exploration, and marked a new era of cultural intermingling, and more recently, convergence. Early writings about exploration date back to the 4th millennium B.C. in ancient Egypt. One of the earliest and most impactful thinkers of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Naval College, Greenwich
The Royal Naval College, Greenwich, was a Royal Navy training establishment between 1873 and 1998, providing courses for naval officers. It was the home of the Royal Navy's staff college, which provided advanced training for officers. The equivalent in the British Army was the Staff College, Camberley, and the equivalent in the Royal Air Force was the RAF Staff College, Bracknell. History The Royal Naval College, Greenwich, was founded by an Order in Council dated 16 January 1873. The establishment of its officers consisted of a President, who was always a Flag Officer; a Captain, Royal Navy; a Director of Studies; and Professors of Mathematics, Physical Science, Chemistry, Applied Mechanics, and Fortification. It was to take in officers who were already Sub-Lieutenants and to operate as "the university of the Navy". The Director of Studies, a civilian, was in charge of an Academic Board, while the Captain of the College was a naval officer who acted as chief of staff. The Roy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenwich
Greenwich ( , ,) is a town in south-east London, England, within the ceremonial county of Greater London. It is situated east-southeast of Charing Cross. Greenwich is notable for its maritime history and for giving its name to the Greenwich Meridian (0° longitude) and Greenwich Mean Time. The town became the site of a royal palace, the Palace of Placentia from the 15th century, and was the birthplace of many Tudors, including Henry VIII and Elizabeth I. The palace fell into disrepair during the English Civil War and was demolished to be replaced by the Royal Naval Hospital for Sailors, designed by Sir Christopher Wren and his assistant Nicholas Hawksmoor. These buildings became the Royal Naval College in 1873, and they remained a military education establishment until 1998 when they passed into the hands of the Greenwich Foundation. The historic rooms within these buildings remain open to the public; other buildings are used by University of Greenwich and Trinity Laban C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain, which lies in the North Atlantic, and includes over 100 smaller islands, such as the Isles of Scilly and the Isle of Wight. The area now called England was first inhabited by modern humans during the Upper Paleolithic period, but takes its name from the Angles, a Germanic tribe deriving its name from the Anglia peninsula, who settled during the 5th and 6th centuries. England became a unified state in the 10th century and has had a significant cultural and legal impact on the wider world since the Age of Discovery, which began during the 15th century. The English language, the Anglican Church, and Engli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Canada
Western Canada, also referred to as the Western provinces, Canadian West or the Western provinces of Canada, and commonly known within Canada as the West, is a Canadian region that includes the four western provinces just north of the Canada–United States border namely (from west to east) British Columbia, Alberta, Saskatchewan and Manitoba. The people of the region are often referred to as "Western Canadians" or "Westerners", and though diverse from province to province are largely seen as being collectively distinct from other Canadians along cultural, linguistic, socioeconomic, geographic, and political lines. They account for approximately 32% of Canada's total population. The region is further subdivided geographically and culturally between British Columbia, which is mostly on the western side of the Canadian Rockies and often referred to as the " west coast", and the "Prairie Provinces" (commonly known as "the Prairies"), which include those provinces on the easter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nakoda (Stoney)
The Nakoda (also known as Stoney or ) are an Indigenous people in Western Canada and, originally, the United States. They used to inhabit large parts of what is now Alberta, Saskatchewan and Montana, but their reserves are now located in Alberta and in Saskatchewan, where they are scarcely differentiated from the Assiniboine. Through their language they are related to the Dakota and Lakota nations of the Great Plains and the Rocky Mountains, part of the large Sioux Nation. They refer to themselves in their own language as " Nakoda", meaning ''friend'', ''ally''. The name "Stoney" was given them by white explorers, because of their technique of using fire-heated rocks to boil broth in rawhide bowls. They are very closely related to the Assiniboine, who are also known as ''Stone Sioux'' (from the Ojibwe ). Alberta's Nakoda First Nation comprises three bands: Bearspaw, Chiniki and Wesley. The Stoney were "excluded" from Banff National Park between 1890 and 1920. In 2010 the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dease Lake (British Columbia)
Dease Lake is a lake in the Stikine Plateau of the Northern Interior of British Columbia, Canada, located at the head of the Dease River, which flows north then northeast from the lake to join the Liard River. The community of Dease Lake, British Columbia, formerly Dease Lake Post, is located at the south end of the lake, straddling a low pass which leads into the basin from the Tanzilla River, a tributary of the Stikine. The area around the lake was the focus of the Cassiar Gold Rush and numerous ghost towns and former settlement sites are scattered around its shores, including Laketon and Centre City. Dease Lake is the burial site and has a monument to English travelogue writer Warburton Pike. Name origin The lake was named in 1834 by John McLeod, a Chief Trader for the Hudson's Bay Company at the former Dease Lake Post, for Peter Warren Dease, superintendent of the New Caledonia Fur District from 1830 to 1834, who had served with the Franklin Expedition of 1825-27 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century Irish Mathematicians
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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