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1874 Transit Of Venus Expedition To Campbell Island
The 1874 Transit of Venus Expedition to Campbell Island was an astronomical expedition by French scientists to observe the 9 December 1874 transit of Venus on subantarctic Campbell Island in the Southern Ocean some 600 km south of New Zealand. It was one of several such scientific expeditions from various countries sent around the world to observe the rare astronomical event. Preparation The expedition was conducted under the auspices of the French Academy of Sciences which established a committee to plan the operation. A year before the transit was due, the French naval frigate FRWS ''Vire'', based at Nouméa and commanded by Captain J. Jacquemart, visited the island from 28 November to 25 December 1873. The officers and crew of the ship made a thorough survey of the coastline and set up a platform for astronomical equipment on the headland between Camp Cove and Garden Cove in Perseverance Harbour and cleared a path to the beach. They also planted a garden with potat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campbell Island Map
Campbell may refer to: People Surname * Campbell (surname), includes a list of people with surname Campbell Given name * Campbell Brown (footballer), an Australian rules footballer * Campbell Brown (journalist) (born 1968), American television news reporter and anchor * Campbell Cowan Edgar (1870–1938), Scottish Egyptologist and Secretary-General of the Egyptian Museum at Cairo * Campbell Jackson (born 1981), Northern Irish darts player * Campbell Johnstone (born 1980), New Zealand rugby union player * Campbell "Stretch" Miller (1910–1972), American sportscaster * Campbell Money (born 1960), Scottish footballer * Campbell Newman (born 1963), Australian politician * Campbell Scott (born 1961), American actor, director, and voice artist Places In Australia: * Campbell, Australian Capital Territory, a suburb of Canberra, Australia In Canada: * Campbell, Nova Scotia, on Cape Breton Island Nova Scotia * Campbell Branch Little Black River, South of Quebec, Canada (and Maine) * C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Corona
A corona ( coronas or coronae) is the outermost layer of a star's atmosphere. It consists of plasma. The Sun's corona lies above the chromosphere and extends millions of kilometres into outer space. It is most easily seen during a total solar eclipse, but it is also observable with a coronagraph. Spectroscopic measurements indicate strong ionization in the corona and a plasma temperature in excess of , much hotter than the surface of the Sun, known as the photosphere. The word ''corona'' is , in turn derived . History In 1724, French-Italian astronomer Giacomo F. Maraldi recognized that the aura visible during a solar eclipse belongs to the Sun, not to the Moon. In 1809, Spanish astronomer José JoaquÃn de Ferrer coined the term 'corona'. Based in his own observations of the 1806 solar eclipse at Kinderhook (New York), de Ferrer also proposed that the corona was part of the Sun and not of the Moon. English astronomer Norman Lockyer identified the first element unknown on E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Expeditions From France
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] |
History Of Astronomy
Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical, and astrological beliefs and practices of prehistory: vestiges of these are still found in astrology, a discipline long interwoven with public and governmental astronomy. It was not completely separated in Europe (see astrology and astronomy) during the Copernican Revolution starting in 1543. In some cultures, astronomical data was used for astrological prognostication. Early history Early cultures identified celestial objects with gods and spirits. They related these objects (and their movements) to phenomena such as rain, drought, seasons, and tides. It is generally believed that the first astronomers were priests, and that they understood celestial objects and events to be manifestations of the divine, hence early astronomy's connection to what is now called astrology. A 32,500-year-old carved ivory mammoth tusk could cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1874 In Science
The year 1874 in science and technology involved some significant events, listed below. Astronomy * December 9 – a transit of Venus across the Sun is observed in Muddapur, India, by an astronomical expedition led by Pietro Tacchini Chemistry * Per Teodor Cleve discovers that didymium is in fact two elements, now known as ''neodymium'' and ''praseodymium'' * C. R. Alder Wright synthetizes heroin * Othmar Zeidler synthesises DDT * Carl Schorlemmer publishe ''A Manual of Chemistry of the Carbon Compounds; or, Organic Chemistry'' * Jacobus van 't Hoff and Achille Le Bel independently propose that organic molecular models can be three-dimensional Exploration * February – the ''Challenger'' expedition provides geological evidence for the existence of the continent of Antarctica History of science * John William Draper publishes ''History of the Conflict between Religion and Science'' Mathematics * Georg Cantor's paper, "" ("On a Property of the Collection of All Real Algeb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Expeditions
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the Hydrosphere, hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . ''Encyclopædia Britannica, Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the Land and water hemispheres, Water Hemisphere and the Western Hemisphere, as well as the Pole of inaccessibility#Oceanic pole of ina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transit Of Venus
frameless, upright=0.5 A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and a superior planet, becoming visible against (and hence obscuring a small portion of) the solar disk. During a transit, Venus can be seen from Earth as a small black dot moving across the face of the Sun. The duration of such transits is usually several hours (the transit of 2012 lasted 6 hours and 40 minutes). A transit is similar to a solar eclipse by the Moon. While the diameter of Venus is more than three times that of the Moon, Venus appears smaller, and travels more slowly across the face of the Sun, because it is much farther away from Earth. Transits of Venus are among the rarest of predictable astronomical phenomena. They occur in a pattern that generally repeats every 243 years, with pairs of transits eight years apart separated by long gaps of 121.5 years and 105.5 years. The periodicity is a reflection of the fact that the orbital periods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saigon
, population_density_km2 = 4,292 , population_density_metro_km2 = 697.2 , population_demonym = Saigonese , blank_name = GRP (Nominal) , blank_info = 2019 , blank1_name = – Total , blank1_info = US$61.7 billion , blank2_name = – Per capita , blank2_info = US$6,862 , blank3_name = GRP ( PPP) , blank3_info = 2019 , blank4_name = – Total , blank4_info = US$190.3 billion , blank5_name = – Per capita , blank5_info = US$21,163 , blank6_name = HDI (2020) , blank6_info = 0.795 ( 2nd) , area_code = 28 , area_code_type = Area codes , website = , timezone = ICT , utc_offset = +07:00 , postal_code_type = Postal code , postal_code = 700000–740000 , iso_code ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beijing
} Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 million residents. It has an administrative area of , the third in the country after Guangzhou and Shanghai. It is located in Northern China, and is governed as a municipality under the direct administration of the State Council with 16 urban, suburban, and rural districts.Figures based on 2006 statistics published in 2007 National Statistical Yearbook of China and available online at archive. Retrieved 21 April 2009. Beijing is mostly surrounded by Hebei Province with the exception of neighboring Tianjin to the southeast; together, the three divisions form the Jingjinji megalopolis and the national capital region of China. Beijing is a global city and one of the world's leading centres for culture, diplomacy, politics, finance, busi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagasaki
is the capital and the largest city of Nagasaki Prefecture on the island of Kyushu in Japan. It became the sole port used for trade with the Portuguese and Dutch during the 16th through 19th centuries. The Hidden Christian Sites in the Nagasaki Region have been recognized and included in the UNESCO World Heritage List. Part of Nagasaki was home to a major Imperial Japanese Navy base during the First Sino-Japanese War and Russo-Japanese War. Near the end of World War II, the American atomic bombings of Hiroshima and Nagasaki made Nagasaki the second and, to date, last city in the world to experience a nuclear attack (at 11:02 am, August 9, 1945 'Japan Standard Time (UTC+9)'). , the city has an estimated population of 407,624 and a population density of 1,004 people per km2. The total area is . History Nagasaki as a Jesuit port of call The first contact with Portuguese explorers occurred in 1543. An early visitor was Fernão Mendes Pinto, who came from Sagres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Caledonia
) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign state , subdivision_name = , established_title = Annexed by France , established_date = 24 September 1853 , established_title2 = Overseas territory , established_date2 = 1946 , established_title3 = Nouméa Accord , established_date3 = 5 May 1998 , official_languages = French , regional_languages = , capital = Nouméa , coordinates = , largest_city = capital , demonym = New Caledonian , government_type = Devolved parliamentary dependency , leader_title1 = President of France , leader_name1 = Emmanuel Macron , leader_title2 = President of the Government , leader_name2 = Louis Mapou , leader_title3 = President of the Congress , leader_name3 = Roch Wamytan , leader_title4 = High Commissioner , leader_name4 = Patrice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ÃŽle Saint-Paul
Île Saint-Paul (Saint Paul Island) is an island forming part of the French Southern and Antarctic Lands (''Terres australes et antarctiques françaises'', TAAF) in the Indian Ocean, with an area of . The island is located about south of the larger Île Amsterdam (), northeast of the Kerguelen Islands, and southeast of Réunion. It is an important breeding site for seabirds. A scientific research cabin on the island is used for scientific or ecological short campaigns, but there is no permanent population. It is under the authority of a senior administrator on Réunion. Geography Île Saint-Paul is a volcanic island with triangular in shape that measures no more than at its widest point. It is the top of an active volcano; the volcano last erupted in 1793 (from its SW Flank), and is rocky with steep cliffs on the east side. The thin stretch of rock that used to close off the crater collapsed in 1780, admitting the sea through a channel; the entrance is only a few meters d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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