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1739 In Science
The year 1739 in science and technology involved some significant events. Earth sciences * Plinian eruption of Mount Tarumae volcano in Japan. Exploration * January 1 – Bouvet Island is discovered by French explorer Jean-Baptiste Charles Bouvet de Lozier in the South Atlantic Ocean. Mathematics * Leonhard Euler solves the general homogeneous linear ordinary differential equation with constant coefficients. * Euler invents the tonnetz (German for "tone-network"), a conceptual lattice diagram that shows a two-dimensional tonal pitch space created by the network of relationships between musical pitches in just intonation. Physics * Émilie du Châtelet publishes ''Dissertation sur la nature et la propagation du feu''. Awards * Copley Medal: Stephen Hales Societies * June 2 – The Royal Swedish Academy of Sciences is founded in Stockholm by Linnaeus, Mårten Triewald and others. Births * November 14 – William Hewson, English surgeon, anatomist and physiologist, "father ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acta Eruditorum - I Alfabeti Etruschi, 1739 – BEIC 13462574
Acta or ACTA may refer to: Institutions * Anti-Counterfeiting Trade Agreement, an intellectual property trade agreement * Administrative Council for Terminal Attachments, a standards organization for terminal equipment such as registered jacks * Alameda Corridor Transportation Authority, in southern California * American Council of Trustees and Alumni, an education organization * Atlantic County Transportation Authority, a transportation agency in Atlantic County, New Jersey * Australian Community Television Alliance, an industry association representing community television licensees in Australia Science and technology * Acta, the transactions (proceedings) of an academic field, a learned society, or an academic conference * Acta (software), early outliner software * Activin A, mammalian protein * ACTA1, actin alpha 1 (skeletal muscle), human protein * ACTA2, actin alpha 2 (smooth muscle), human protein * Actin assembly-inducing protein, motility protein in the bacterium ''Listeri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Just Intonation
In music, just intonation or pure intonation is a musical tuning, tuning system in which the space between notes' frequency, frequencies (called interval (music), intervals) is a natural number, whole number ratio, ratio. Intervals spaced in this way are said to be pure, and are called just intervals. Just intervals (and chords created by combining them) consist of tones from a single harmonic series (music), harmonic series of an implied fundamental frequency, fundamental. For example, in the diagram, if the notes G3 and C4 (labelled 3 and 4) are tuned as members of the harmonic series of the lowest C, their frequencies will be 3 and 4 times the fundamental frequency. The interval ratio between C4 and G3 is therefore 4:3, a just fourth (music), fourth. In Western musical practice, bowed instruments such as violins, violas, cellos, and double basses are tuned using pure fifths or fourths. In contrast, keyboard instruments are rarely tuned using only pure intervals—the desire fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1817 In Science
The year 1817 in science and technology involved some significant events, listed below. Biology * Georges Cuvier publishes ''Le Règne Animal''. Chemistry * Discovery of cadmium by Friedrich Stromeyer. * Discovery of lithium by Johann Arfvedson. * Discovery of selenium by Jöns Jakob Berzelius. * Pierre-Joseph Pelletier and Joseph Bienaimé Caventou isolate chlorophyll and emetine. * Leopold Gmelin begins publication of his ''Handbuch der theoretischen Chemie''. Medicine * First cholera pandemic (1817–24) originates in Bengal, reaching Calcutta by September. * James Parkinson publishes An Essay on the Shaking Palsy', describing "paralysis agitans", the condition which will become known as Parkinson's disease. Technology * March – Ackermann steering geometry invented by Georg Lankensperger. * June 12 – German inventor Karl Drais drives his dandy horse ("Draisine" or ''Laufmaschine''), the earliest form of bicycle, in Mannheim. * July 10 – David Brewster patents the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrialist
A business magnate, also known as an industrialist or tycoon, is a person who is a powerful entrepreneur and investor who controls, through personal enterprise ownership or a dominant shareholding position, a firm or industry whose goods or services are widely consumed. Etymology and history The term ''magnate'' derives from the Latin word (plural of ), meaning 'great man' or 'great nobleman'. The term ''mogul'' is an English corruption of , Farsi, Persian or Arabic for 'Mongol'. It alludes to emperors of the Mughal Empire in Early modern India, Early Modern India, who possessed great power and storied riches capable of producing wonders of opulence, such as the Taj Mahal. The term ''tycoon'' derives from the Japanese language, Japanese word , which means 'great lord', used as a title for the . The word entered the English language in 1857 with the return of Matthew C. Perry, Commodore Perry to the United States. US President Abraham Lincoln was humorously referred to as ''th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Samuel Du Pont De Nemours
Pierre Samuel du Pont de Nemours ( , ; 14 December 1739 – 7 August 1817) was a French-American writer, economist, publisher and government official. During the French Revolution, he, his two sons and their families migrated to the United States. His son Éleuthère Irénée du Pont was the founder of E. I. du Pont de Nemours and Company. He was the patriarch and progenitor of one of the United States's most successful and wealthiest business dynasties of the 19th and 20th centuries. Early life and family Pierre du Pont was born on 14 December 1739, the son of Samuel du Pont and Anne Alexandrine de Montchanin. His father was a watchmaker and French Protestant, or Huguenot. His mother was a descendant of an impoverished minor noble family from Burgundy. Du Pont married Nicole-Charlotte Marie-Louise le Dée de Rencourt in 1766, also of a minor noble family. They had three sons: Victor Marie (1767–1827), a manufacturer and politician; Paul François (December 1769â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1774 In Science
The year 1774 in science and technology involved some significant events. Astronomy * Johann Elert Bode discovers the galaxy Messier 81. * Joseph Louis Lagrange, Lagrange publishes a paper on the motion of the nodes of a planet's orbit. Biology * Italians, Italian physicist Abbé Bonaventura Corti publishes ''Osservazioni microscopiche sulla tremella e sulla circulazione del fluido in una pianta acquajuola'' in Lucca, including his discovery of cyclosis in plant cells. * French people, French physician Antoine-Augustin Parmentier, Antoine Parmentier publishes ''Examen chymique des pommes de terres'' in Paris, analysing the nutritional value of the potato. Chemistry * August 1 – Joseph Priestley, working at Bowood House, Wiltshire, England, isolates oxygen in the form of a gas, which he calls "dephlogisticated air". * Antoine Lavoisier publishes his first book, a literature review on the composition of air, ''Opuscules physiques et chimiques''. * Carl Wilhelm Scheele discove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Hewson (surgeon)
William Hewson (14 November 1739 – 1 May 1774) was a British surgery, surgeon, anatomy, anatomist and physiology, physiologist who has been referred to as the "father of haematology". Biography Born in Hexham, Northumberland, Hewson initially studied in 1753 at the Newcastle Infirmary, Newcastle upon Tyne (which later became the Royal Victoria Infirmary) under its founder Richard Lambert (surgeon), Richard Lambert and much later in the winter of 1761/1762 in Edinburgh and was a student, and later an assistant, of William Hunter (anatomist), William Hunter. In 1768 he was elected to the American Philosophical Society, he was awarded the Copley Medal in 1769, and elected to the Royal Society in 1770. His major contribution was in isolating fibrin, a key protein in the blood coagulation process. His Copley work came when he showed the existence of lymph vessels in animals and explained their function by hypothesizing the existence of a human lymphatic system. He also demonstrated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MÃ¥rten Triewald
MÃ¥rten Triewald Fellow of the Royal Society, FRS (18 November 1691 – 8 August 1747), sometimes referred to as MÃ¥rten Triewald the Younger, was a Swedish merchant, engineer and amateur physicist. MÃ¥rten Triewald was the son of MÃ¥rten Triewald the Elder, a farrier and anchorsmith of German origin. Triewald's mercantile activities took him to London where he attended lectures in Newtonian Experimental Philosophy given by John Theophilus Desaguliers and with whom he later corresponded. In 1716 Triewald was employed as an inspector at a coal mine in Newcastle upon Tyne, Newcastle, where he studied mechanics and the steam engines used there, and made improvements to them. He returned to Sweden in 1726 and at Dannemora mine and built a steam engine there under the designation "fire and air machine" (''eld- och luftmachin'' in archaic Swedish). This steam engine is believed to be the first steam engine in Sweden that was put to practical and industrial use. In 1728 and 1729 Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern Taxonomy (biology), taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was the son of a curate and was born in Råshult, in the countryside of Småland, southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stockholm
Stockholm (; ) is the Capital city, capital and List of urban areas in Sweden by population, most populous city of Sweden, as well as the List of urban areas in the Nordic countries, largest urban area in the Nordic countries. Approximately 1 million people live in the Stockholm Municipality, municipality, with 1.6 million in the Stockholm urban area, urban area, and 2.5 million in the Metropolitan Stockholm, metropolitan area. The city stretches across fourteen islands where Mälaren, Lake Mälaren flows into the Baltic Sea. Outside the city to the east, and along the coast, is the island chain of the Stockholm archipelago. The area has been settled since the Stone Age, in the 6th millennium BC, and was founded as a city in 1252 by Swedish statesman Birger Jarl. The city serves as the county seat of Stockholm County. Stockholm is the cultural, media, political, and economic centre of Sweden. The Stockholm region alone accounts for over a third of the country's Gros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Swedish Academy Of Sciences
The Royal Swedish Academy of Sciences () is one of the Swedish Royal Academies, royal academies of Sweden. Founded on 2 June 1739, it is an independent, non-governmental scientific organization that takes special responsibility for promoting natural sciences and mathematics and strengthening their influence in society, whilst endeavouring to promote the exchange of ideas between various disciplines. The goals of the academy are: * To be a forum where researchers meet across subject boundaries, * To offer a unique environment for research, * To provide support to younger researchers, * To reward outstanding research efforts, * To communicate internationally among scientists, * To advance the case for science within society and to influence research policy priorities * To stimulate interest in mathematics and science in school, and * To disseminate and popularize scientific information in various forms. Every year, the academy awards the Nobel Prizes in Nobel Prize in Physics, phy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephen Hales
Stephen Hales (17 September 16774 January 1761) was an English clergyman who made major contributions to a range of scientific fields including botany, pneumatic chemistry and physiology. He was the first person to measure blood pressure. He also invented several devices, including a ventilation (architecture), ventilator, a pneumatic trough and a surgical forceps for the removal of bladder stones. In addition to these achievements, he was a Philanthropy, philanthropist and wrote a popular tract on Alcohol intoxication, alcoholic intemperance. Life Stephen Hales was born in Bekesbourne, Kent, England. He was the sixth son of Thomas Hales, heir to Baronetcy of Beakesbourne and Brymore School, Brymore, and his wife, Mary (née Wood), and was one of twelve or possibly thirteen children.Clark-Kennedy, A. E. ''Stephen Hales, D.D., F.R.S.: An eighteenth century biography''. Cambridge University Press, 1929. Thomas Hales (died 1692) predeceased his father, Sir Robert Hales, 1st Baronet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
