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Bernhard Walther
Bernhard Walther (1430June 19, 1504) was a German merchant, Renaissance humanism, humanist and astronomer based in Nuremberg, Germany. Walther was born in Memmingen, and was a man of large means, which he devoted to scientific pursuits. When Regiomontanus settled in Nuremberg in 1471, they worked in collaboration to build an observatory and a printing press. After the death of Regiomontanus in 1476 at Rome, Walther bought his instruments, after Hans von Dorn, commissioned by the Hungarian king, had failed to come to an agreement with the council of Nuremberg. Walther continued to observe the planets until his death in Nuremberg. His house, purchased in 1509 by Albrecht Dürer, is today a museum. Astronomy Walther amplified on the effects of refraction in altering the apparent location of the heavenly bodies, and substituted Venus for the Moon as a connecting-link between observations of the Sun and stars. As a result, his observations are the most precise prior to those of Tycho B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuremberg Duererhaus F N
Nuremberg ( ; german: link=no, Nürnberg ; in the local East Franconian dialect: ''Nämberch'' ) is the second-largest city of the German state of Bavaria after its capital Munich, and its 518,370 (2019) inhabitants make it the 14th-largest city in Germany. On the Pegnitz River (from its confluence with the Rednitz in Fürth onwards: Regnitz, a tributary of the River Main) and the Rhine–Main–Danube Canal, it lies in the Bavarian administrative region of Middle Franconia, and is the largest city and the unofficial capital of Franconia. Nuremberg forms with the neighbouring cities of Fürth, Erlangen and Schwabach a continuous conurbation with a total population of 800,376 (2019), which is the heart of the urban area region with around 1.4 million inhabitants, while the larger Nuremberg Metropolitan Region has approximately 3.6 million inhabitants. The city lies about north of Munich. It is the largest city in the East Franconian dialect area (colloquially: "Franconian" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Revolutionibus Orbium Coelestium
''De revolutionibus orbium coelestium'' (English translation: ''On the Revolutions of the Heavenly Spheres'') is the seminal work on the heliocentric theory of the astronomer Nicolaus Copernicus (1473–1543) of the Polish Renaissance. The book, first printed in 1543 in Nuremberg, Holy Roman Empire, offered an alternative model of the universe to Ptolemy's geocentric system, which had been widely accepted since ancient times. History Copernicus initially outlined his system in a short, untitled, anonymous manuscript that he distributed to several friends, referred to as the ''Commentariolus''. A physician's library list dating to 1514 includes a manuscript whose description matches the ''Commentariolus'', so Copernicus must have begun work on his new system by that time. Most historians believe that he wrote the ''Commentariolus'' after his return from Italy, possibly only after 1510. At this time, Copernicus anticipated that he could reconcile the motion of the Earth with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1430 Births
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143 may refer to: *143 (number), a natural number *AD 143, a year of the 2nd century AD *143 BC, a year of the 2nd century BC * ''143'' (EP), a 2013 EP by Tiffany Evans * ''143'' (album), a 2015 album by Bars and Melody * ''143'' (2004 film), a 2004 Indian Telugu film * ''143'' (2022 film), a 2022 Indian Marathi film *''143'', a song by Set It Off from their 2009 EP, ''Calm Before the Storm'' *"1-4-3 (I Love You)", a 2013 song by Henry Lau *143 (West Midlands) Brigade *143 Records, record label of producer David Foster * KiYa 143, a locomotive type See also * List of highways numbered 143 The following highways are numbered 143: Canada * Prince Edward Island Route 143 * Quebec Route 143 Costa Rica * National Route 143 (Costa Rica), National Route 143 Germany * Bundesautobahn 143 Japan * Japan National Route 143 * Fukuoka Pref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Christian Poggendorff
Johann Christian Poggendorff (29 December 1796 – 24 January 1877), was a German physicist born in Hamburg. By far the greater and more important part of his work related to electricity and magnetism. Poggendorff is known for his electrostatic motor which is analogous to Wilhelm Holtz's electrostatic machine. In 1841 he described the use of the potentiometer for measurement of electrical potentials without current draw. Biography Poggendorf had apprenticed himself to an apothecary in Hamburg, and when twenty-two began to earn his living as an apothecary's assistant at Itzehoe. Ambition and a strong inclination towards a scientific career led him to throw up his business and move to Berlin, where he entered Humboldt University in 1820. Here his abilities were speedily recognized, and in 1823 he was appointed meteorological observer to the Academy of Sciences. Even at this early period he had conceived the idea of founding a physical and chemical scientific journal, and the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudolf Wolf
Johann Rudolf Wolf (7 July 1816 – 6 December 1893) was a Swiss astronomer and mathematician best known for his research on sunspots. Wolf was born in Fällanden, near Zurich. He studied at the universities of Zurich, Vienna, and Berlin. Encke was one of his teachers. Wolf became professor of astronomy at the University of Bern in 1844 and director of the Bern Observatory in 1847. In 1855 he accepted a chair of astronomy at both the University of Zurich and the Federal Institute of Technology in Zurich. Wolf was greatly impressed by the discovery of the sunspot cycle by Heinrich Schwabe and he not only carried out his own observations, but he collected all the available data on sunspot activity back as far as 1610 and calculated a period for the cycle of 11.1 years. In 1848 he devised a way of quantifying sunspot activity. The Wolf number The Wolf number (also known as the relative sunspot number or Zürich number) is a quantity that measures the number of sunspots and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abraham Gotthelf Kästner
Abraham Gotthelf Kästner (27 September 1719 – 20 June 1800) was a German mathematician and epigrammatist. He was known in his professional life for writing textbooks and compiling encyclopedias rather than for original research. Georg Christoph Lichtenberg was one of his doctoral students, and admired the man greatly. He became most well known for his epigrammatic poems. The crater Kästner on the Moon is named after him. Life Kästner was the son of law professor Abraham Kästner. He married Anna Rosina Baumann in 1757 after a 12-year engagement. She died on 4 March 1758, less than a year later, of a lung disease. Later Kästner had a daughter Catharine with his cleaning lady. Kästner studied law, philosophy, physics, mathematics and metaphysics in Leipzig from 1731, and was appointed a Notary in 1733. He gained his habilitation from the University of Leipzig in 1739, and lectured there in mathematics, philosophy, logic and law, becoming an associate professor in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Friedrich Weidler
Johann Friedrich Weidler (13 April 1691 in Großneuhausen – 13 November 1755 in Wittenberg) was a German astronomer and mathematician. Biography He was a professor of mathematics at University of Wittenberg and a fellow of the Royal Society. In 1727 he moved to Basel, returning in 1746 to teach again at the University of Wittenberg His ''Historia Astronomiae sive de Ortu et Progressu Astronomiae. Liber Singularis'', published in Wittenberg in 1741, was the first, complete history of astronomy, also appreciated by Lalande. He also wrote texts on mathematics and hydraulics Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counte .... References Works * External links 1691 births 1755 deaths 18th-century German mathematicians 18th-century German astronomers Fellows of the Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Philipp Von Wurzelbaur
Johann Philipp von Wurzelbauer (also spelled Wurzelbaur, Wurzelbau, Wurtzelbaur, Wurtzelbau) (28 September 1651 – 21 July 1725) was a German astronomer. Biography A native of Nuremberg, Wurzelbauer was a merchant who became an astronomer. As a youth, he was keenly interested in mathematics and astronomy but had been forced to earn his living as a merchant. He married twice: his first marriage was to Maria Magdalena Petz (1656–1713), his second to Sabina Dorothea Kress (1658–1733). Petz bore him six children. He first published a work concerning his observations on the great comet of 1680, and initially began his work at a private castle-observatory on Spitzenberg 4 owned by Georg Christoph Eimmart (completely destroyed during World War II), the director of Nuremberg's painters' academy. Wurzelbauer was 64 when he began this second career, but proved himself to be an able assistant to Eimmart. A large quadrant from his days at Eimmart's observatory still survives. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Friedrich Apelt
Ernst Friedrich Apelt (3 March 1812 in Reichenau, Saxony – 27 October 1859 in Oppelsdorf, Upper Lusatia, Saxony) was a German philosopher and entrepreneur. He was a student of Jakob Friedrich Fries, succeeding him at the University of Jena. He was the principal contributor to the ''Abhandlungen der Fries'sche Schule'', which he founded with Matthias Jakob Schleiden. He was also one of the early scholars of the life and work of Johannes Kepler, a precursor of Alexandre Koyré Alexandre Koyré (, ; born Alexandr Vladimirovich (or Volfovich) Koyra (russian: Александр Владимирович (Вольфович) Койра); 29 August 1892 – 28 April 1964), also anglicized as Alexander Koyre, was a Fren ....His son Otto Friedrich Apelt made important contributions to the debate on the nature of the categories of Aristotle.Venanzio Raspa, ''Otto Apelt: La dottrina delle categorie di Aristotle,''Quodlibet 2020 pp.74-81. Works *''Metaphysik'' (1857) Notes Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean Sylvain Bailly
Jean Sylvain Bailly (; 15 September 1736 – 12 November 1793) was a French astronomer, mathematician, freemason, and political leader of the early part of the French Revolution. He presided over the Tennis Court Oath, served as the mayor of Paris from 1789 to 1791, and was ultimately guillotined during the Reign of Terror. Scientific career Born in Paris, Bailly was the son of Jacques Bailly, an artist and supervisor of the Louvre, and the grandson of Nicholas Bailly, also an artist and court painter. As a child he originally intended to follow in his family's footsteps and pursue a career in the arts. He became deeply attracted to science, however, particularly astronomy, by the influence of Nicolas de Lacaille. An excellent student with a "particularly retentive memory and inexhaustible patience",Stephens, p. 51. he calculated an orbit for the next appearance of Halley's Comet (in 1759), and correctly reduced Lacaille's observations of 515 stars. He participated in the constru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Étienne Montucla
Jean-Étienne Montucla (5 September 1725 – 18 December 1799) was a French mathematician and historian. Montucla was born at Lyon, France. In 1754 he published an anonymous treatise on quadrature, ''Histoire des recherches sur la quadrature du cercle''. Montucla's deep interest in history of mathematics became apparent with his publication of ''Histoire des Mathématiques'', the first part appearing in 1758. According to George Sarton, the ''Histoire'' is :a history of the mathematical sciences, and might almost be called a history of science from the mathematical angle, even as many histories of medicine are to some extent histories of science written from the medical angle. He was appointed intendant-secretary of Grenoble in 1758, secretary to the expedition for colonizing Cayenne in 1764, and chief architect and censor-royal for mathematical books in 1765. In 1778 he re-edited Jacques Ozanam's ''Recreations mathématiques'', afterwards published in English by Charles Hutto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Andreas Will
Georg may refer to: * ''Georg'' (film), 1997 *Georg (musical), Estonian musical * Georg (given name) * Georg (surname) George is a surname of Irish, English, Welsh, South Indian Christian, Middle Eastern Christian (usually Lebanese), French, or Native American origin. The German form is Georg. Notable people with the surname include: *Allan George (born 1999), Amer ... * , a Kriegsmarine coastal tanker See also * George (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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