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1821 In Science
The year 1821 in science and technology involved some significant events, listed below. Astronomy * Johann Franz Encke calculates that Comet Encke has a periodic orbit, the second comet after Comet Halley for which this has been discovered. * Alexis Bouvard detects irregularities in the orbit of Uranus. Biology * Swedish mycologist Elias Magnus Fries begins publication of '' Systema Mycologicum'', a key work in the modern taxonomy of mushrooms. * William Jackson Hooker publishes ''Flora Scotica; or, A description of Scottish plants''. * Prideaux John Selby begins publication of ''Illustrations of British Ornithology'', the first set of life-sized illustrations of British birds. Chemistry * John Kidd describes the properties of the substance which he calls '' naphthaline''. * Pierre Jean Robiquet, Joseph Bienaimé Caventou and Pierre Joseph Pelletier isolate caffeine. Geography and exploration * January 28 – Russian explorer Fabian Gottlieb von Bellingshausen discovers Alexand ... [...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] |
John Kidd (chemist)
John Kidd (10 September 1775 – 7 September 1851) was an English physician, chemist and geologist who took a leading role in Oxford's "scientific awakening" in the early years of the nineteenth century. Biography Kidd was born in Westminster, the son of a naval officer, and was educated at Christ Church, Oxford. He became reader in chemistry at Oxford in 1801, and in 1803 was elected the first Aldrichian Professor of Chemistry. He then voluntarily gave courses of lectures on mineralogy and geology. These were delivered in the dark chambers under the Ashmolean Museum, where William Conybeare, William Buckland, Charles Daubeny and others gained their first lessons in geology. Kidd was a popular and instructive lecturer, and through his efforts the geological chair, first held by Buckland, was established. Kidd's two geological publications — his ''Outlines of Mineralogy'' (1809) and ''Geological Essay on the Imperfect Evidence in Support of a Theory of the Earth'' (1815) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Parry (explorer)
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] |
Société De Géographie
The Société de Géographie (; ), is the world's oldest geographical society. It was founded in 1821 as the first Geographic Society. Since 1878, its headquarters have been at 184 Boulevard Saint-Germain, Paris. The entrance is marked by two gigantic caryatids representing ''Land'' and ''Sea''. It was here, in 1879, that the construction of the Panama Canal was decided. History The Geographical Society was founded at a meeting on 15 December 1821 in the Paris Hôtel de Ville. Among its 217 founders were some of the greatest scientific names of the time, including Pierre-Simon Laplace (the Society's first president), Georges Cuvier, Charles Pierre Chapsal, Vivant Denon, Joseph Fourier, Gay-Lussac, Claude Louis Berthollet, Alexander von Humboldt, Champollion, and François-René de Chateaubriand. Most of the men who had accompanied Bonaparte in his Egyptian expedition were members: Edme-François Jomard, Conrad Malte-Brun, Jules Dumont d'Urville, Jules Paul Benjamin Delessert, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nathaniel Palmer
Nathaniel Brown Palmer (August 8, 1799June 21, 1877) was an American seal hunter, explorer, sailing captain, and ship designer. He gave his name to Palmer Land, Antarctica, which he explored in 1820 on his sloop ''Hero''. He was born in Stonington, Connecticut, and was a descendant of Walter Palmer, one of the town's founders. Sealing career and Antarctic exploration During the 1810s the hides of Antarctic Ocean seals were highly valued as items for trade with China. Palmer served as second mate on board s first voyage, during which she became the first American vessel known to reach the South Shetland Islands. As a skilled and fearless seal hunter, Palmer achieved his first command at the early age of 21. His vessel, a diminutive sloop named , was only in length. Palmer steered southward in ''Hero'' at the beginning of the Antarctic summer of 1820–1821. Aggressively searching for new seal rookeries south of Cape Horn, on November 17, 1820, Palmer and his men became the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Powell (sealer)
George Powell (1794–1824) was an English sealer, explorer and amateur naturalist. He captained three sealing expeditions to the Antarctic Ocean between 1818 and 1822. Powell was born in London. During his first expedition, in 1818 and 1819, he captained the sloop ''Dove'' and visited South Georgia and Kerguelen Islands. His second expedition, captaining ''Eliza'', lasted from 1819 until 1821, during which time he visited the Falkland Islands and the South Shetland Islands. In 1821 and 1822 he took both ''Dove'', which he captained, and ''Eliza'', captained by John Wright, on another sealing expedition to the South Shetland Islands, for which he produced a very fine chartL. Ivanov and N. Ivanova. Sealing period. In''The World of Antarctica''.Generis Publishing, 2022. pp. 78-84. based on his own observations of the north coast of the group and the observations of others for the southern coast. On 6 December 1821, he co-discovered the South Orkney Islands along with American N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Orkney Islands
The South Orkney Islands are a group of islands in the Southern Ocean, about north-east of the tip of the Antarctic Peninsula''Antarctica: Secrets of the Southern Continent'' p. 122 David McGonigal, 2009 and south-west of . They have a total area of about . The islands are claimed both by Britain (as part of the since 1962, previously as a [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Island
Alexander Island, which is also known as Alexander I Island, Alexander I Land, Alexander Land, Alexander I Archipelago, and Zemlja Alexandra I, is the largest island of Antarctica. It lies in the Bellingshausen Sea west of Palmer Land, Antarctic Peninsula from which it is separated by Marguerite Bay and George VI Sound. The George VI Ice Shelf entirely fills George VI Sound and connects Alexander Island to Palmer Land. The island partly surrounds Wilkins Sound, which lies to its west.Stewart, J. (2011) ''Antarctic An Encyclopedia'' McFarland & Company Inc, New York. 1776 pp. . Alexander Island is about long in a north–south direction, wide in the north, and wide in the south. Alexander Island is the second-largest uninhabited island in the world, after Devon Island. History Alexander Island was discovered on January 28, 1821, by a Russian expedition under Fabian Gottlieb von Bellingshausen, who named it Alexander I Land for the reigning Tsar Alexander I of Russia. Wha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fabian Gottlieb Von Bellingshausen
Fabian Gottlieb Thaddeus von Bellingshausen (russian: Фадде́й Фадде́евич Беллинсга́узен, translit=Faddéy Faddéevich Bellinsgáuzen; – ) was a Russian naval officer, cartographer and explorer, who ultimately rose to the rank of admiral. He participated in the first Russian circumnavigation of the globe, and subsequently became a leader of another circumnavigation expedition that discovered the continent of Antarctica. Like Otto von Kotzebue and Adam Johann von Krusenstern, Bellingshausen belonged to the cohort of prominent Baltic German navigators who helped Russia launch its naval expeditions. Bellingshausen was born on Osel Island. He started his service in the Russian Baltic Fleet, and after distinguishing himself joined the first Russian circumnavigation of the Earth in 1803–1806, serving on the merchant ship ''Nadezhda'' under the captaincy of Adam Johann von Krusenstern. After the journey, he published a collection of maps of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caffeine
Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class. It is mainly used recreationally as a cognitive enhancer, increasing alertness and attentional performance. Caffeine acts by blocking binding of adenosine to the adenosine A1 receptor, which enhances release of the neurotransmitter acetylcholine. Caffeine has a three-dimensional structure similar to that of adenosine, which allows it to bind and block its receptors. Caffeine also increases cyclic AMP levels through nonselective inhibition of phosphodiesterase. Caffeine is a bitter, white crystalline purine, a methylxanthine alkaloid, and is chemically related to the adenine and guanine bases of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). It is found in the seeds, fruits, nuts, or leaves of a number of plants native to Africa, East Asia and South America, and helps to protect them against herbivores and from competition by preventing the germination of nearby seeds, as well as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Joseph Pelletier
Pierre-Joseph Pelletier (, , ; 22 March 1788 – 19 July 1842) was a French chemist and pharmacist who did notable research on vegetable alkaloids, and was the co-discoverer with Joseph Bienaimé Caventou of quinine, caffeine, and strychnine. He was also a collaborator and co-author with Polish chemist Filip Walter. See also * Joseph Bienaimé Caventou Joseph Bienaimé Caventou (30 June 1795 – 5 May 1877) was a French pharmacist. He was a professor at the École de Pharmacie (School of Pharmacy) in Paris. He collaborated with Pierre-Joseph Pelletier in a Parisian laboratory located behind an ... * Filip Nariusz Walter References Further reading * Scientists from Paris 1788 births 1842 deaths French Roman Catholics 19th-century French chemists French biochemists Members of the French Academy of Sciences {{france-chemist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Bienaimé Caventou
Joseph Bienaimé Caventou (30 June 1795 – 5 May 1877) was a French pharmacist. He was a professor at the École de Pharmacie (School of Pharmacy) in Paris. He collaborated with Pierre-Joseph Pelletier in a Parisian laboratory located behind an apothecary. He was a pioneer in the use of mild solvents to isolate a number of active ingredients from plants, making a study of alkaloids from vegetables. Among their successes were the isolation of the following compounds: Quinine sulfate later proved to be an important remedy for the disease malaria. Quinine is the active anti-malarial ingredient in the bark of cinchona tree. Neither of the partners chose to patent their discovery of this compound, releasing it for everybody to use. In 1823 they discovered nitrogen in alkaloid compounds. Other compounds they discovered include colchicine and veratrine. The crater Caventou on the Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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