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1622 In Science
The year 1622 in science and technology involved some significant events. Mathematics * The slide rule is invented by William Oughtred (1574– 1660), an English mathematician, and later becomes the calculating tool of choice until the electronic calculator takes over in the early 1970s. Physiology and medicine * Gaspare Aselli discovers the lacteal vessels of the lymphatic system. * Flemish anatomist Giulio Casserio publishes ''Nova anatomia'' in Frankfurt, containing clear copperplate engravings of the human anatomy. Technology * February 22 – An English patent is granted for Dud Dudley's process for smelting iron ore with coke. Births * January 28 – Adrien Auzout, French astronomer (died 1691) * March 10 – Johann Rahn, Swiss mathematician (died 1676) * April 5 – Vincenzo Viviani, Italian mathematician and scientist (died 1703) * ''undated'' – Jean Pecquet, French anatomist (died 1674) Deaths * January 23 – William Baffin, English explorer and navigator ...
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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 ...
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Dud Dudley
Dudd (Dud) Dudley (1600–1684) was an English metallurgist, who fought on the Royalist side in the English Civil War as a soldier, military engineer, and supplier of munitions. He was one of the first Englishmen to smelt iron ore using coke. Background and early life Dudley was the illegitimate son of Edward Sutton, 5th Baron Dudley of Dudley Castle. Dudd was the fourth of Lord Dudley's eleven children by his 'concubine' Elizabeth, the daughter of William Tomlinson (she died 3 July 1629). Strictly, he was called Dudd Dudley otherwise Tomlinson. His eldest brother was Robert Dudley of Netherton Hall. Dudd married Eleanor Heaton, (1606–1675), on 12 October 1626, at St. Helen's Church, Worcester. Lord Dudley (though he had a legitimate son, and a granddaughter by him, as well as four legitimate daughters and numerous grandchildren) seemed to have attended to the up-bringing of his natural children by Elizabeth Tomlinson; he educated and provided for them. On the other hand, he f ...
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Italians
, flag = , flag_caption = The national flag of Italy , population = , regions = Italy 55,551,000 , region1 = Brazil , pop1 = 25–33 million , ref1 = , region2 = Argentina , pop2 = 20–25 million , ref2 = , region3 = United States , pop3 = 17-20 million , ref3 = , region4 = France , pop4 = 1-5 million , ref4 = , region5 = Venezuela , pop5 = 1-5 million , ref5 = , region6 = Paraguay , pop6 = 2.5 million , region7 = Colombia , pop7 = 2 million , ref7 = , region8 = Canada , pop8 = 1.5 million , ref8 = , region9 = Australia , pop9 = 1.0 million , ref9 = , region10 = Uruguay , pop10 = 1.0 million , r ...
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Vincenzo Viviani
Vincenzo Viviani (April 5, 1622 – September 22, 1703) was an Italian mathematician and scientist. He was a pupil of Torricelli and a disciple of Galileo."Viviani" article
in the


Biography

Vincenzo Viviani was born in Florence to the nobles Jacopo di Michelangelo Viviani and Maria Alamanno del Nente. While attending a Jesuit school Viviani studied the . Following the study of humanities, Viviani turned to mathematics. He ...
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1676 In Science
The year 1676 in science and technology involved some significant events. Astronomy * Summer – The Royal Greenwich Observatory, designed by Christopher Wren, is completed near London. * December 7 – Danish astronomer Ole Rømer measures the speed of light by observing the eclipses of Jupiter's moons, obtaining a speed of 140,000 miles per second (approximately 25% too slow). * Edmond Halley arrives on the island of Saint Helena, having left the University of Oxford, and sets up an astronomical observatory to catalogue stars from the Southern Hemisphere. Biology * Antony Van Leeuwenhoek discovers bacteria, observed with the microscope. * Francis Willughby's ''Ornithologiae'' is published by John Ray, the foundation of scientific ornithology. Medicine * William Briggs publishes an anatomy of the eye (the first in England), ''Ophthalmographia'', at Cambridge. * Thomas Sydenham publishes the textbook ', the enlarged 3rd edition of his '. Paleontology * The first fossilised b ...
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Mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History One of the earliest known mathematicians were Thales of Miletus (c. 624–c.546 BC); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales' Theorem. The number of known mathematicians grew when Pythagoras of Samos (c. 582–c. 507 BC) established the Pythagorean School, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman mathematician recorded by history was Hypati ...
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Swiss People
The Swiss people (german: die Schweizer, french: les Suisses, it, gli Svizzeri, rm, ils Svizzers) are the citizens of Switzerland or people of Swiss abroad, Swiss ancestry. The number of Swiss nationality law, Swiss nationals has grown from 1.7 million in 1815 to 8.7 million in 2020. More than 1.5 million Swiss citizens hold multiple citizenship. About 11% of citizens Swiss abroad, live abroad (0.8 million, of whom 0.6 million hold multiple citizenship). About 60% of those living abroad reside in the European Union (0.46 million). The largest groups of Swiss descendants and nationals outside Europe are found in the Swiss Americans, United States, Brazil and Swiss Canadian, Canada. Although the Switzerland as a federal state, modern state of Switzerland originated in 1848, the period of romantic nationalism, it is not a nation-state, and the Swiss are not a single ethnic group, but rather are a Confederation, confederacy (') or ' ("nation of will", "nation by choice", tha ...
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Johann Rahn
Johann Rahn (Latinised form Rhonius) (10 March 1622 – 25 May 1676) was a Swiss mathematician who is credited with the first use of the division sign, ÷ (a repurposed obelus variant) and the therefore sign, ∴. The symbols were used in ''Teutsche Algebra'', published in 1659. John Pell collaborated with Rahn in this book, which contains an example of the Pell equation. It is uncertain whether Rahn or Pell was responsible for introducing the symbols. Books Teutsche Algebra- Johann H. Rahn Literature *R. Acampora ''Johann Heinrich Rahn und seine Teutsche Algebra'', in R. Gebhardt (Herausgeber) ''Visier- und Rechenbücher der frühen Neuzeit'', Schriften des Adam-Ries-Bundes Annaberg-Buchholz 19, 2008, S. 163–178 * Moritz Cantor: Rahn, Johann Heinrich . In: General German Biography (ADB). Volume 27, Duncker & Humblot, Leipzig, 1888, pp. 174 f *Noel Malcolm, Jacqueline Stedall ''John Pell (1611–1685) and His Correspondence with Sir Charles Cavendish: The Mental World ...
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1691 In Science
The year 1691 in science and technology involved some significant events. Biology * Italian Jesuit scholar Filippo Bonanni publishes the results of his microscopic observations of invertebrates in ''Observationes circa Viventia, quae in Rebus non-Viventibus''. Mathematics * Gottfried Leibniz discovers the technique of separation of variables for ordinary differential equations. * Michel Rolle invents Rolle's theorem. Medicine * Anton Nuck's ''Adenographia curiosa et uteri foeminei anatome nova'' is published at Leiden, including a description of the canal of Nuck and a demonstration that the embryo is derived from the ovary and not the sperm. Technology * Edmond Halley devises a diving bell. * In music, the "equal temperament scale" used in modern music is developed by organist Andreas Werckmeister. Births * November 18 – Mårten Triewald, Sweden, Swedish mechanical engineer (died 1747 in science, 1747) Deaths * January 17 – Richard Lower (physician), Richard Lower, Engli ...
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Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, galaxies – in either observational astronomy, observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, Sun, solar astronomy, the Star formation, origin or stellar evolution, evolution of stars, or the galaxy formation and evolution, formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational astronomy, observational and theoretical astronomy, theoretical. Observational astronomers make direct observations of Astronomical object, celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate C ...
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French People
The French people (french: Français) are an ethnic group and nation primarily located in Western Europe that share a common French culture, history, and language, identified with the country of France. The French people, especially the native speakers of langues d'oïl from northern and central France, are primarily the descendants of Gauls (including the Belgae) and Romans (or Gallo-Romans, western European Celtic and Italic peoples), as well as Germanic peoples such as the Franks, the Visigoths, the Suebi and the Burgundians who settled in Gaul from east of the Rhine after the fall of the Roman Empire, as well as various later waves of lower-level irregular migration that have continued to the present day. The Norse also settled in Normandy in the 10th century and contributed significantly to the ancestry of the Normans. Furthermore, regional ethnic minorities also exist within France that have distinct lineages, languages and cultures such as Bretons in Brittany, Occi ...
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Adrien Auzout
Adrien Auzout ronounced in French somewhat like o-zoo(28 January 1622 – 23 May 1691) was a French astronomer. He was born in Rouen, France, the eldest child of a clerk in the court of Rouen. His educational background is unknown, although he may have attended the Jesuit college in Rouen. Adrien left for Paris during the 1640s, where he developed an interest in astronomy and became well known in academic circles. In 1664–1665 he made observations of comets, and argued in favor of their following elliptical or parabolic orbits (in this he was opposed by his rival Johannes Hevelius). Adrien was briefly a member of the Académie Royale des Sciences from 1666 to 1668 (he may have left due to a dispute) and a founding member of the Paris Observatory. He was elected a Fellow of the Royal Society of London in 1666. He then left for Italy and spent the next 20 years in that country, finally dying in Rome in 1691. Little is known about his activities during this last period. ...
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