|
Sveinn Pálsson
Sveinn Pálsson (25 April 1762 – 24 April 1840) was an Icelandic physician and a naturalist who carried out systematic observations of Icelandic glaciers in the 1790s. He also observed volcanoes and wildlife throughout his homeland. He studied medicine and natural science in Copenhagen (1787–1791) before spending four years travelling around Iceland and studying nature. He described his research in Ferðabók (Travel Journal) and in addition, wrote ''Jöklarit'' (Glacier Treatise) and ''Eldrit'' (Volcano Treatise). Sveinn also wrote extensively about medicine. Biography He was the first person to propose the theory that glaciers move under their own weight, like viscous material. He focused on glacial sediments, melt-water rivers and floods, and the effects of subglacial volcanism. His conclusions concerned significant findings in regards to formation and dynamics of glaciers. His treatise "''Draft of a Physical, Geographical, and Historical Description of Icelandic Ice M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sveinn Pálsson
Sveinn Pálsson (25 April 1762 – 24 April 1840) was an Icelandic physician and a naturalist who carried out systematic observations of Icelandic glaciers in the 1790s. He also observed volcanoes and wildlife throughout his homeland. He studied medicine and natural science in Copenhagen (1787–1791) before spending four years travelling around Iceland and studying nature. He described his research in Ferðabók (Travel Journal) and in addition, wrote ''Jöklarit'' (Glacier Treatise) and ''Eldrit'' (Volcano Treatise). Sveinn also wrote extensively about medicine. Biography He was the first person to propose the theory that glaciers move under their own weight, like viscous material. He focused on glacial sediments, melt-water rivers and floods, and the effects of subglacial volcanism. His conclusions concerned significant findings in regards to formation and dynamics of glaciers. His treatise "''Draft of a Physical, Geographical, and Historical Description of Icelandic Ice M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabbro
Gabbro () is a phaneritic (coarse-grained), mafic intrusive igneous rock formed from the slow cooling of magnesium-rich and iron-rich magma into a holocrystalline mass deep beneath the Earth's surface. Slow-cooling, coarse-grained gabbro is chemically equivalent to rapid-cooling, fine-grained basalt. Much of the Earth's oceanic crust is made of gabbro, formed at mid-ocean ridges. Gabbro is also found as plutons associated with continental volcanism. Due to its variant nature, the term ''gabbro'' may be applied loosely to a wide range of intrusive rocks, many of which are merely "gabbroic". By rough analogy, gabbro is to basalt as granite is to rhyolite. Etymology The term "gabbro" was used in the 1760s to name a set of rock types that were found in the ophiolites of the Apennine Mountains in Italy. It was named after Gabbro, a hamlet near Rosignano Marittimo in Tuscany. Then, in 1809, the German geologist Christian Leopold von Buch used the term more restrictively in his descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th-century Danish Physicians
The 18th century lasted from January 1, 1701 (Roman numerals, MDCCI) to December 31, 1800 (Roman numerals, MDCCC). During the 18th century, elements of Age of Enlightenment, Enlightenment thinking culminated in the American Revolution, American, French Revolution, French, and Haitian Revolution, Haitian Revolutions. During the century, History of slavery, slave trading and human trafficking expanded across the shores of the Atlantic Ocean, Atlantic, while declining in Russian Empire, Russia, Qing dynasty, China, and Joseon, Korea. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that Proslavery, supported slavery. The Industrial Revolution began during mid-century, leading to radical changes in Society, human society and the Natural environment, environment. Western historians have occasionally defined the 18th century otherwise for the purposes of their work. For example, the "short" 18th cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th-century Icelandic People
The 18th century lasted from January 1, 1701 ( MDCCI) to December 31, 1800 ( MDCCC). During the 18th century, elements of Enlightenment thinking culminated in the American, French, and Haitian Revolutions. During the century, slave trading and human trafficking expanded across the shores of the Atlantic, while declining in Russia, China, and Korea. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that supported slavery. The Industrial Revolution began during mid-century, leading to radical changes in human society and the environment. Western historians have occasionally defined the 18th century otherwise for the purposes of their work. For example, the "short" 18th century may be defined as 1715–1789, denoting the period of time between the death of Louis XIV of France and the start of the French Revolution, with an emphasis on directly interconnected events. To historians who expand the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century Naturalists
The 19th (nineteenth) century began on 1 January 1801 (Roman numerals, MDCCCI), and ended on 31 December 1900 (Roman numerals, MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolitionism, abolished in much of Europe and the Americas. The Industrial Revolution, 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 Gunpowder empires, Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th-century Naturalists
The 18th century lasted from January 1, 1701 ( MDCCI) to December 31, 1800 ( MDCCC). During the 18th century, elements of Enlightenment thinking culminated in the American, French, and Haitian Revolutions. During the century, slave trading and human trafficking expanded across the shores of the Atlantic, while declining in Russia, China, and Korea. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that supported slavery. The Industrial Revolution began during mid-century, leading to radical changes in human society and the environment. Western historians have occasionally defined the 18th century otherwise for the purposes of their work. For example, the "short" 18th century may be defined as 1715–1789, denoting the period of time between the death of Louis XIV of France and the start of the French Revolution, with an emphasis on directly interconnected events. To historians who expand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icelandic Medical Doctors
Icelandic refers to anything of, from, or related to Iceland and may refer to: *Icelandic people *Icelandic language *Icelandic alphabet *Icelandic cuisine See also * Icelander (other) * Icelandic Airlines, a predecessor of Icelandair * Icelandic horse, a breed of domestic horse * Icelandic sheep, a breed of domestic sheep * Icelandic Sheepdog, a breed of domestic dog * Icelandic cattle Icelandic cattle ( is, íslenskur nautgripur ) are a breed of cattle native to Iceland. Cattle were first brought to the island during the Settlement of Iceland a thousand years ago. Icelandic cows are an especially colorful breed with a wide v ..., a breed of cattle * Icelandic chicken, a breed of chicken {{disambig Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1840 Deaths
__NOTOC__ Year 184 ( CLXXXIV) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Eggius and Aelianus (or, less frequently, year 937 ''Ab urbe condita''). The denomination 184 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place China * The Yellow Turban Rebellion and Liang Province Rebellion break out in China. * The Disasters of the Partisan Prohibitions ends. * Zhang Jue leads the peasant revolt against Emperor Ling of Han of the Eastern Han Dynasty. Heading for the capital of Luoyang, his massive and undisciplined army (360,000 men), burns and destroys government offices and outposts. * June – Ling of Han places his brother-in-law, He Jin, in command of the imperial army and sends them to attack the Yellow Turban rebels. * Winter – Zha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1762 Births
Year 176 ( CLXXVI) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Proculus and Aper (or, less frequently, year 929 ''Ab urbe condita''). The denomination 176 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * November 27 – Emperor Marcus Aurelius grants his son Commodus the rank of ''Imperator'', and makes him Supreme Commander of the Roman legions. * December 23 – Marcus Aurelius and Commodus enter Rome after a campaign north of the Alps, and receive a triumph for their victories over the Germanic tribes. * The Equestrian Statue of Marcus Aurelius is made. It is now kept at Museo Capitolini in Rome (approximate date). Births * Fa Zheng, Chinese nobleman and adviser (d. 220) * Liu Bian, Chinese emperor of the Han Dynasty ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icelandic Literary Society
The Icelandic Literary Society (Hið Íslenzka Bókmenntafélag), founded in 1816, is a society dedicated to promoting and strengthening Icelandic language, literature and learning. The society was founded in 1816, when the Icelandic independence movement was in its infancy, at the instigation of Rasmus Rask and Árni Helgason. Its stated purpose was "to support and maintain the Icelandic language and literature, and the civilization and honor of the Icelandic nation, by the publication of books or by other means as circumstances would permit."Halldór Hermannsson, ''The Periodical Literature of Iceland Down to the Year 1874,'' ''Islandica'' XI (1918)p. 26 The first meeting of the Copenhagen branch was held on 13 April 1816, and the first meeting of the Reykjavík branch on 1 August 1816. Rask was the first president of the Copenhagen branch; the first president of the Reykjavík branch (until 1848) was Árni Helgason. Jón Sigurðsson, an Icelandic cultural hero, served as presiden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westman Islands
Vestmannaeyjar (, sometimes anglicized as Westman Islands) is a municipality and archipelago off the south coast of Iceland. The largest island, Heimaey, has a population of 4,414, most of whom live in the archipelago's main town, Vestmannaeyjabær. The other islands are uninhabited, although six have single hunting cabins. Vestmannaeyjar came to international attention in 1973 with the eruption of Eldfell volcano, which destroyed many buildings and forced a month-long evacuation of the entire population to mainland Iceland. Approximately one-fifth of the town was destroyed before the lava flow was halted by application of 6.8billion litres of cold sea water. Geography The Vestmannaeyjar archipelago is young in geological terms. The islands lie in the Southern Icelandic Volcanic Zone and have been formed by eruptions over the past 10,000–12,000 years. The volcanic system consists of 70–80 volcanoes both above and below the sea. Vestmannaeyjar comprises the following isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skeiðará
Skeiðará () is a relatively short glacier river (about 30 km long). It has its source on the glacier Skeiðarárjökull, one of the southern arms of the Vatnajökull in the south of Iceland. In spite of its short length, this river has a bad reputation. It is especially feared because of the frequent glacier runs that can be fatal. In front of Skaftafell and Skeiðarárjökull, Skeiðará has formed the Skeiðarársandur, a black plain of lava sand and ashes crossed by a lot of small rivulets which covers the whole area between the park and the sea (about 40 km long and 5 to 10 km wide). In 1996, the latest of these glacier runs took place. It destroyed parts of Route 1 (the Ring Road). The bridge was damaged by floating ice boulders the size of houses. At the peak of this glacier run, 45,000 m3/s of water were coming down. No one was harmed, scientists having very carefully monitored the volcano Grímsvötn on Vatnajökull which caused the glacier run by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
