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1722 In Science
The year 1722 in science and technology involved some significant events. Chemistry * René Antoine Ferchault de Réaumur publishes his work on metallurgy, ''L'Art de convertir le fer forge en acier'', which describes how to convert iron into steel. Exploration * April 5 (Easter Sunday) – Jacob Roggeveen lands on Easter Island. Mathematics * Abraham de Moivre states de Moivre's formula, connecting complex numbers and trigonometry. Meteorology * A continuous series of weather records is begun in Uppsala by Anders Celsius; it will be maintained for at least 300 years. Physics * Willem 's Gravesande publishes experimental evidence that the formula for kinetic energy of a body in motion is E_k \propto \begin \end mv^2. Technology * October – In clockmaking, George Graham demonstrates that his experiments, begun in December 1721, with mercurial compensation of the pendulum result in greater accuracy in timekeeping under conditions of variable temperature. Births * May 11 – ... [...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] |
Clockmaking
A clockmaker is an artisan who makes and/or repairs clocks. Since almost all clocks are now factory-made, most modern clockmakers only repair clocks. Modern clockmakers may be employed by jewellers, antique shops, and places devoted strictly to repairing clocks and watches. Clockmakers must be able to read blueprints and instructions for numerous types of clocks and time pieces that vary from antique clocks to modern time pieces in order to fix and make clocks or watches. The trade requires fine motor coordination as clockmakers must frequently work on devices with small gears and fine machinery. Originally, clockmaker were master craftsmen who designed and built clocks by hand. Since modern clockmakers are required to repair antique, handmade or one-of-a-kind clocks for which parts are not available, they must have some of the design and fabrication abilities of the original craftsmen. A qualified clockmaker can typically design and make a missing piece for a clock without a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Barker (meteorologist)
Thomas Barker (1722 – 29 December 1809) was a Rutland squire who kept a detailed weather record at Lyndon Hall from 1736 to 1798. Life and work Thomas Barker was born at Lyndon Hall, Lyndon, Rutland, England in 1722. The son of Samuel Barker and grandson of William Whiston, he came from a distinguished local family, which had lived in Lyndon from the time of Henry VIII. He married Anne White, sister of Gilbert White the famous naturalist. The couple had five children, a son and four daughters. Thomas Barker was a vegetarian, having discovered in early childhood that his constitution was unsuited to the consumption of meat. Barker's meteorological records have proved a valuable resource for those researching the 18th century British climate, because of its early date for instrumental observations, its length and the meticulousness with which it was compiled. He recorded barometric pressure, temperature, clouds, wind and rainfall. (In the early years his thermometer was in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1793
The French Republic introduced the French Revolutionary Calendar starting with the year I. Events January–June * January 7 – The Ebel riot occurs in Sweden. * January 9 – Jean-Pierre Blanchard becomes the first to fly in a gas balloon in the United States. * January 13 – Nicolas Jean Hugon de Bassville, a representative of Revolutionary France, is lynched by a mob in Rome. * January 21 – French Revolution: After being found guilty of treason by the French National Convention, ''Citizen Capet'', Louis XVI of France, is guillotined in Paris. * January 23 – Second Partition of Poland: The Russian Empire and the Kingdom of Prussia partition the Polish–Lithuanian Commonwealth. * February – In Manchester, Vermont, the wife of a captain falls ill, probably with tuberculosis. Some locals believe that the cause of her illness is that a demon vampire is sucking her blood. As a cure, Timothy Mead burns the heart of a deceased person in f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eliza Lucas
Elizabeth "Eliza" Lucas Pinckney (December 28, 1722 May 27, 1793) transformed agriculture in colonial South Carolina, where she developed indigo as one of its most important cash crops. Its cultivation and processing as dye produced one-third the total value of the colony's exports before the Revolutionary War. Manager of three plantations, Pinckney had a major influence on the colonial economy. In the 20th century, Eliza Pinckney was the first woman to be inducted into South Carolina's Business Hall of Fame. Early life and education Elizabeth (known as Eliza) Lucas was born on December 28, 1722, on the island of Antigua, in the colony of the British Leeward Islands in the Caribbean. Lucas grew up on Poorest, one of her family's three sugarcane plantations on the island. She was the eldest child of Lieutenant Colonel George Lucas, of Dalzell's Regiment of Foot in the British Army, and Ann (probably Meldrum) Lucas. She had two brothers, Thomas, and George, and a younger sister M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
December 28
Events Pre-1600 * 418 – A papal conclave begins, resulting in the election of Pope Boniface I. * 457 – Majorian is acclaimed as Western Roman emperor. * 484 – Alaric II succeeds his father Euric and becomes king of the Visigoths. He establishes his capital at Aire-sur-l'Adour (Southern Gaul). * 893 – An earthquake destroys the city of Dvin, Armenia. *1065 – Edward the Confessor's Romanesque monastic church at Westminster Abbey is consecrated. *1308 – The reign of Emperor Hanazono of Japan begins. 1601–1900 * 1659 – The Marathas defeat the Adilshahi forces in the Battle of Kolhapur. *1768 – King Taksin's coronation achieved through conquest as a king of Thailand and established Thonburi as a capital. * 1795 – Construction of Yonge Street, formerly recognized as the longest street in the world, begins in York, Upper Canada (present-day Toronto). * 1832 – John C. Calhoun becomes the first Vice President of the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1809 In Science
The year 1809 in science and technology involved some significant events, listed below. Astronomy * Carl Friedrich Gauss publishes in Hamburg, introducing the Gaussian gravitational constant and containing an influential treatment of the least squares method. * S. D. Poisson publishes and in the ''Journal'' of the École Polytechnique, extending Lagrange's theory of planetary orbits. Biology * Jean-Baptiste Lamarck publishes ''Philosophie Zoologique'', outlining his theory of evolution. * Johann Heinrich Friedrich Link first describes ''Penicillium''. Geology * William Maclure publishes the first geological map of the United States with accompanying memoir. Mathematics * Louis Poinsot describes the two remaining Kepler-Poinsot polyhedra. Medicine * December 25 – American physician Ephraim McDowell performs the world's first ovariotomy, the removal of an ovarian tumor. * Philippe Pinel publishes accounts of what would later be regarded as schizophrenia. Technology * Febr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leopold Auenbrugger
Josef Leopold Auenbrugger or Avenbrugger (19 November 1722 – 17 May 1809), also known as Leopold von Auenbrugger, was an Austrian physician who invented percussion as a diagnostic technique. On the strength of this discovery, he is considered one of the founders of modern medicine. Biography Auenbrugger was a native of Graz in Styria, an Austrian province. His father, owner of the inn ''Zum Schwarzen Mohren'', gave his son every opportunity for an excellent preliminary education in his native town and then sent him to Vienna to complete his studies at the university. Auenbrugger was graduated as a physician at the age of 22 and then entered the Spanish Military Hospital of Vienna, where he spent 10 years. He found out that, by applying his ear to the patient and tapping lightly on the chest, one could assess the density of underlying tissues and organs. This technique of percussive diagnosis had its origins in testing the level of wine casks in the cellar of his father ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1789 In Science
The year 1789 in science and technology involved some significant events. Anatomy * Antonio Scarpa publishes ''Anatomicæ disquisitiones de auditu et olfactu'', a classic treatise on the hearing and olfactory organs. Astronomy * August 28 and September 17 – William Herschel discovers Saturn's moons Enceladus and Mimas, which he describes to the Royal Society of London on November 12. * Maximilian Hell establishes the constellations '' Tubus Hershelli Major'' and ''Minor'' in honour of Herschel's discovery of Uranus (constellations obsolete by 1930). Botany * Erasmus Darwin publishes his poem '' The Loves of the Plants'', a popular rendering of Linnaeus' works. * Antoine Laurent de Jussieu publishes Genera Plantarum: secundum ordines naturales disposita, juxta methodum in Horto regio parisiensi exaratam, anno M.DCC.LXXIV', providing a basis for the system of natural classification of flowering plants largely still in use. Chemistry * Antoine Lavoisier's '' Traité élémentair ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparative Anatomy
Comparative anatomy is the study of similarities and differences in the anatomy of different species. It is closely related to evolutionary biology and phylogeny (the evolution of species). The science began in the classical era, continuing in the early modern period with work by Pierre Belon who noted the similarities of the skeletons of birds and humans. Comparative anatomy has provided evidence of common descent, and has assisted in the classification of animals. History The first specifically anatomical investigation separate from a surgical or medical procedure is associated by Alcmaeon of Croton. Leonardo da Vinci made notes for a planned anatomical treatise in which he intended to compare the hands of various animals including bears. Pierre Belon, a French naturalist born in 1517, conducted research and held discussions on dolphin embryos as well as the comparisons between the skeletons of birds to the skeletons of humans. His research led to modern comparative anato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Netherlands
) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherlands , established_title2 = Act of Abjuration , established_date2 = 26 July 1581 , established_title3 = Peace of Münster , established_date3 = 30 January 1648 , established_title4 = Kingdom established , established_date4 = 16 March 1815 , established_title5 = Liberation Day (Netherlands), Liberation Day , established_date5 = 5 May 1945 , established_title6 = Charter for the Kingdom of the Netherlands, Kingdom Charter , established_date6 = 15 December 1954 , established_title7 = Dissolution of the Netherlands Antilles, Caribbean reorganisation , established_date7 = 10 October 2010 , official_languages = Dutch language, Dutch , languages_type = Regional languages , languages_sub = yes , languages = , languages2_type = Reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrus Camper
Petrus Camper FRS (11 May 1722 – 7 April 1789), was a Dutch physician, anatomist, physiologist, midwife, zoologist, anthropologist, palaeontologist and a naturalist in the Age of Enlightenment. He was one of the first to take an interest in comparative anatomy, palaeontology, and the facial angle. He was among the first to mark out an "anthropology," which he distinguished from natural history. He studied the orangutan, the Javan rhinoceros, and the skull of a mosasaur, which he believed was a whale. Camper was a celebrity in Europe and became a member of the Royal Society (1750), the Göttingen (1779), and Russian Academy of Sciences (1778), the Royal Society of Edinburgh (1783), the French (1786) and the Prussian Academy of Sciences (1788). He designed and constructed tools for his patients, and for surgeries. He was an amateur drawer, a sculptor, a patron of art and a conservative, royalist politician. Camper published some lectures containing an account of his craniome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
