|
1819 In Science
The year 1819 in science and technology involved some significant events, listed below. Astronomy and space science * Johann Franz Encke computes the orbit of Comet Encke, identifying it as periodic. * July 1 – Johann Georg Tralles discovers the Great Comet of 1819, (C/1819 N1). It is the first comet analyzed using polarimetry, by François Arago. Chemistry * Joseph Bienaimé Caventou and Pierre Joseph Pelletier isolate the alkaloid brucine from ''Strychnos nux-vomica''. Exploration * February 19 – Captain William Smith in British merchant brig ''Williams'' sights Williams Point, the northeast extremity of Livingston Island in the South Shetlands, the first land discovered south of latitude 60° S. * October 15 – Desolation Island in the South Shetland Islands of the Antarctic is discovered by Captain William Smith in the ''Williams''. * A British Arctic expedition under William Edward Parry comprising HMS ''Hecla'' and HMS ''Griper'' reaches longitude 112°51' W in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old. The earliest written records in the history of science come from Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age and later by the efforts of Byzantine Greek scholars who brought Greek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Shetland Islands
The South Shetland Islands are a group of Antarctic islands with a total area of . They lie about north of the Antarctic Peninsula, and between southwest of the nearest point of the South Orkney Islands. By the Antarctic Treaty of 1959, the islands' sovereignty is neither recognized nor disputed by the signatories and they are free for use by any signatory for non-military purposes. The islands have been claimed by the United Kingdom since 1908 and as part of the British Antarctic Territory since 1962. They are also claimed by the governments of Chile (since 1940, as part of the Antártica Chilena province) and Argentina (since 1943, as part of Argentine Antarctica, Tierra del Fuego Province). Several countries maintain research stations on the islands. Most of them are situated on King George Island, benefitting from the airfield of the Chilean base Eduardo Frei. There are sixteen research stations in different parts of the islands, with Chilean stations being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
René Laennec
René-Théophile-Hyacinthe Laennec (; 17 February 1781 – 13 August 1826) was a French physician and musician. His skill at carving his own wooden flutes led him to invent the stethoscope in 1816, while working at the Hôpital Necker. He pioneered its use in diagnosing various chest conditions. He became a lecturer at the Collège de France in 1822 and professor of medicine in 1823. His final appointments were that of head of the medical clinic at the Hôpital de la Charité and professor at the Collège de France. He went into a coma and subsequently died of tuberculosis on August 13, 1826 at age 45. Early life Laennec was born in Quimper (Brittany). His mother died of tuberculosis when he was five years old, and he went to live with his great-uncle the Abbé Laennec (a priest). As a child, Laennec became ill with lassitude and repeated instances of pyrexia. Laennec was also thought to have asthma. At the age of twelve, he proceeded to Nantes, where his uncle, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Bellas Greenough
George Bellas Greenough FRS FGS (18 January 1778 – 2 April 1855) was a pioneering English geologist. He is best known as a synthesizer of geology rather than as an original researcher. Trained as a lawyer, he was a talented speaker and his annual addresses as founding president of the Geological Society of London were influential in identifying and guiding contemporary geological research. He also courted controversy, after using his presidential address in 1834 to cast aspersions on a paper on great earthquakes by Maria Graham. Greenough advocated an empirical approach to the early science; his scepticism of theoretical thinking courted controversy amongst some contemporaries, especially his doubts of the usefulness of fossils in correlating strata. He compiled a geological map of England and Wales, published in 1820, and in the penultimate year of his life used similar methods to produce the first geological map of British India. Greenough characterised himself as follows: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northwest Passage
The Northwest Passage (NWP) is the sea route between the Atlantic and Pacific oceans through the Arctic Ocean, along the northern coast of North America via waterways through the Canadian Arctic Archipelago. The eastern route along the Arctic coasts of Norway and Siberia is accordingly called the Northeast Passage (NEP). The various islands of the archipelago are separated from one another and from Mainland Canada by a series of Arctic waterways collectively known as the Northwest Passages, Northwestern Passages or the Canadian Internal Waters. For centuries, European explorers, beginning with Christopher Columbus in 1492, sought a navigable passage as a possible trade route to Asia, but were blocked by North, Central, and South America, by ice, or by rough waters (e.g. Tierra del Fuego). An ice-bound northern route was discovered in 1850 by the Irish explorer Robert McClure. Scotsman John Rae explored a more southerly area in 1854 through which Norwegian Roald Amundsen f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longitude
Longitude (, ) is a geographic coordinate that specifies the east–west position of a point on the surface of the Earth, or another celestial body. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). Meridians are semicircular lines running from pole to pole that connect points with the same longitude. The prime meridian defines 0° longitude; by convention the International Reference Meridian for the Earth passes near the Royal Observatory in Greenwich, England on the island of Great Britain. Positive longitudes are east of the prime meridian, and negative ones are west. Because of the Earth's rotation, there is a close connection between longitude and time measurement. Scientifically precise local time varies with longitude: a difference of 15° longitude corresponds to a one-hour difference in local time, due to the differing position in relation to the Sun. Comparing local time to an absolute measure of time allows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Griper (1813)
HMS ''Griper'' was a of the British Royal Navy, built in 1813 by Mark Williams and John Davidson at Hythe.The ''Bold'' class were a revival of Sir William Rule's design of 1804. She participated in the 1819 expedition to the Arctic led by William Parry, made a voyage to Greenland and Norway in 1823, and took part in Parry's third expedition in 1824 as a support ship. Her crew in 1819, 1823, or 1824, qualified for the " Arctic Medal", which the Admiralty issued in 1857. She was eventually broken up in 1868. Early career ''Griper'' was commissioned in July 1813 under Commander Charles Mitchell. In February 1814 Commander Arthur M'Meekan replaced Mitchell. In 1817, ''Griper'' was at Chatham. She then underwent fitting as an exploration ship at Portsmouth between December 1818 and May 1819. Expedition to Northwest Passage (1819) Lieutenant Matthew Liddon recommissioned ''Griper'' in January 1819. She then sailed with William Edward Parry from London on 11 May 1819.''The Times ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Hecla (1815)
HMS ''Hecla'' was a Royal Navy launched in 1815. Like many other bomb vessels, she was named for a volcano, in this case Hekla in southern Iceland. She served at the Bombardment of Algiers in 1816. Subsequently, she took part in three expeditions to the Arctic. She then served as a survey vessel on the coast of West Africa until she was sold in 1831. She became a merchantman and in 1834 a Greenland whaler. She was wrecked in 1840. Ship history Commander William Popham commissioned ''Hecla'' for service in the Mediterranean. ''Hecla'' saw wartime service as part of the Anglo-Dutch fleet at the bombardment of Algiers on 27 August 1816. In 1847 the Admiralty authorised the award of the Naval General Service Medal with clasp "Algiers" to all surviving claimants from the battle. Arctic exploration In early 1819 she was converted to an Arctic exploration ship and made three journeys to the Arctic in search of the Northwest Passage, and made one attempt on the North Pole, all un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Edward Parry
Sir William Edward Parry (19 December 1790 – 8 July 1855) was an Royal Navy officer and explorer best known for his 1819–1820 expedition through the Parry Channel, probably the most successful in the long quest for the Northwest Passage, until it was finally negotiated by Roald Amundsen in 1906. In 1827, Parry attempted one of the earliest expeditions to the North Pole. He reached 82° 45' N, setting a record for human exploration Farthest North that stood for nearly five decades before being surpassed at 83° 20' N by Albert Hastings Markham in 1875. Early life Parry was born in Bath, Somerset, the son of Caleb Hillier Parry and Sarah Rigby. He was educated at King Edward's School. At the age of thirteen he joined the flagship of Admiral Sir William Cornwallis in the Channel fleet as a first-class volunteer, in 1806 became a midshipman, and in 1810 received promotion to the rank of lieutenant in the frigate ''Alexander'', which spent the ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic
The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), Finland, Iceland, Norway, Russia (Murmansk Oblast, Murmansk, Siberia, Nenets Autonomous Okrug, Nenets Okrug, Novaya Zemlya), Sweden and the United States (Alaska). Land within the Arctic region has seasonally varying snow and sea ice, ice cover, with predominantly treeless permafrost (permanently frozen underground ice) containing tundra. Arctic seas contain seasonal sea ice in many places. The Arctic region is a unique area among Earth's ecosystems. The cultures in the region and the Arctic indigenous peoples have adapted to its cold and extreme conditions. Life in the Arctic includes zooplankton and phytoplankton, fish and marine mammals, birds, land animals, plants and human societies. Arctic land is bordered by the subarctic. De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> René Laennec")
.svg "Click for more on -> Arctic")