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Étienne Pascal
Étienne Pascal (; 2 May 1588 – 24 September 1651) was a French chief tax officer and the father of Blaise Pascal (1623–1662). Biography Pascal was born in Clermont to Martin Pascal, the treasurer of France, and Marguerite Pascal de Mons. He had three daughters, two of whom survived past childhood: Gilberte (1620–1687) and Jacqueline (1625–1661). His wife Antoinette Begon died in 1626. He was a tax official, lawyer, and a wealthy member of the '' petite noblesse'', who also had an interest in science and mathematics. He was trained in the law at Paris and received his law degree in 1610. That year, he returned to Clermont and purchased the post of counsellor for Bas-Auvergne, the area surrounding Clermont. In 1631, five years after his wife's death, Pascal moved with his children to Paris. They hired Louise Delfault, a maid who eventually became an instrumental member of the family. Pascal, who never remarried, decided to home-educate his children, who showed extr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clermont-Ferrand
Clermont-Ferrand (, , ; or simply ; ) is a city and Communes of France, commune of France, in the Auvergne-Rhône-Alpes regions of France, region, with a population of 147,284 (2020). Its metropolitan area () had 504,157 inhabitants at the 2018 census.Comparateur de territoire: Aire d'attraction des villes 2020 de Clermont-Ferrand (022), Unité urbaine 2020 de Clermont-Ferrand (63701), Commune de Clermont-Ferrand (63113) INSEE It is the Prefectures in France, prefecture (capital) of the Puy-de-Dôme departments of France, département. Olivier Bianchi is its current List of mayors of Clermont-Ferrand, mayor. Clermont-Ferrand sits on the plai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Baptiste Morin (mathematician)
Jean-Baptiste Morin (February 23, 1583 – November 6, 1656), also known by the Latinized name as Morinus, was a French mathematician, astrologer, and astronomer. Life and work Born in Villefranche-sur-Saône, in the Lyonnais, he began studying philosophy at Aix-en-Provence at the age of 16. He studied medicine at Avignon in 1611 and received his medical degree two years later. He was employed by the Bishop of Boulogne from 1613 to 1621 and was sent to Germany and Hungary during this time. He served the bishop as an astrologer and also visited mines and studied metals. He subsequently worked for the Duke of Luxembourg until 1629. Morin published a defense of Aristotle in 1624. He also worked in the field of optics, and continued to study in astrology. He worked with Pierre Gassendi on observational astronomy. In 1630, Morin was appointed professor of mathematics at the Collège Royal, a post he held until his death. A firm believer of the idea that the Earth remained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
17th-century French Judges
The 17th century lasted from January 1, 1601 (represented by the Roman numerals MDCI), to December 31, 1700 (MDCC). It falls into the early modern period of Europe and in that continent (whose impact on the world was increasing) was characterized by the Baroque cultural movement, the latter part of the Spanish Golden Age, the Dutch Golden Age, the French ''Grand Siècle'' dominated by Louis XIV, the Scientific Revolution, the world's first public company and megacorporation known as the Dutch East India Company, and according to some historians, the General Crisis. From the mid-17th century, European politics were increasingly dominated by the Kingdom of France of Louis XIV, where royal power was solidified domestically in the civil war of the Fronde. The semi-feudal territorial French nobility was weakened and subjugated to the power of an absolute monarchy through the reinvention of the Palace of Versailles from a hunting lodge to a gilded prison, in which a greatly expanded ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientists From Clermont-Ferrand
A scientist is a person who researches to advance knowledge in an area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. Though Thales ( 624–545 BC) was arguably the first scientist for describing how cosmic events may be seen as natural, not necessarily caused by gods,Frank N. Magill''The Ancient World: Dictionary of World Biography'', Volume 1 Routledge, 2003 it was not until the 19th century that the term ''scientist'' came into regular use after it was coined by the theologian, philosopher, and historian of science William Whewell in 1833. History The roles of "scientists", and their predecessors before the emergence of modern scientific disciplines, have evolved considerably over time. Scientists of different eras (and before them, natural philosophers, mathematicians, natur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1651 Deaths
Events January–March * January 1 – Charles II is crowned King of Scots at Scone ( his first crowning). * January 24 – Parliament of Boroa in Chile: Spanish and Mapuche authorities meet at Boroa, renewing the fragile peace established at the parliaments of Quillín, in 1641 and 1647. * February 22 – St. Peter's Flood: A first storm tide in the North Sea strikes the coast of Germany, drowning thousands. The island of Juist is split in half, and the western half of Buise is probably washed away. * March 4 – St. Peter's Flood: Another storm tide in the North Sea strikes the Netherlands, flooding Amsterdam. * March 6 – The town of Kajaani is founded by Count Per Brahe the Younger. * March 15 – Prince Aisin Gioro Fulin attains the age of 13 and becomes the Shunzhi Emperor of China, which had been governed by a regency since the death of his father Hong Taiji in 1643. * March 26 – The Spanish ship ''San José'', l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1588 Births
Events January–March * January 22 – Pope Sixtus V issues the papal bull '' Immensa aeterni Dei'', a major reorganization of the Roman Curia creating 15 congregations of cardinals, including the Congregation of the ''Index Librorum Prohibitorum'', the Church list of forbidden books; the Congregation of the Inquisition; and the Congregation of the Vatican Press. * January 24 – War of the Polish Succession: The Battle of Pitschen takes place at Pitschen (modern Byczyna in Poland) with Polish and Lithuanian troops commanded by the Polish hetman Jan Zamoyski defending against an invading Austrian force commanded by Maximilian III, Archduke of Austria. After his army is routed, Archduke Maximilian surrenders and is taken as a prisoner of war, and will be held for more than a year until his release is compelled by the intervention of Pope Sixtus V. * February 9 – The sudden death of Álvaro de Bazán, 1st Marquis of Santa Cruz, in the midst of pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limaçon
In geometry, a limaçon or limacon , also known as a limaçon of Pascal or Pascal's Snail, is defined as a roulette curve formed by the path of a point fixed to a circle when that circle rolls around the outside of a circle of equal radius. It can also be defined as the roulette formed when a circle rolls around a circle with half its radius so that the smaller circle is inside the larger circle. Thus, they belong to the family of curves called centered trochoids; more specifically, they are epitrochoids. The cardioid is the special case in which the point generating the roulette lies on the rolling circle; the resulting curve has a cusp. Depending on the position of the point generating the curve, it may have inner and outer loops (giving the family its name), it may be heart-shaped, or it may be oval. A limaçon is a bicircular rational plane algebraic curve of degree 4. History The earliest formal research on limaçons is generally attributed to Étienne Pascal, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longitude
Longitude (, ) is a geographic coordinate that specifies the east- west position of a point on the surface of the Earth, or another celestial body. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). Meridians are imaginary semicircular lines running from pole to pole that connect points with the same longitude. The prime meridian defines 0° longitude; by convention the International Reference Meridian for the Earth passes near the Royal Observatory in Greenwich, south-east London on the island of Great Britain. Positive longitudes are east of the prime meridian, and negative ones are west. Because of the Earth's rotation, there is a close connection between longitude and time measurement. Scientifically precise local time varies with longitude: a difference of 15° longitude corresponds to a one-hour difference in local time, due to the differing position in relation to the Sun. Comparing local time to an absol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claude Mydorge
Claude Mydorge (1585 – July 1647) was a French mathematician. His primary contributions were in geometry and physics. Mydorge served on a scientific committee (whose members included Pierre Hérigone and Étienne Pascal) set up to determine whether Jean-Baptiste Morin (mathematician), Jean-Baptiste Morin's scheme for determining longitude from the Moon's motion was practical. Works * * External links * 1585 births 1647 deaths 17th-century French mathematicians {{France-mathematician-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limaçon
In geometry, a limaçon or limacon , also known as a limaçon of Pascal or Pascal's Snail, is defined as a roulette curve formed by the path of a point fixed to a circle when that circle rolls around the outside of a circle of equal radius. It can also be defined as the roulette formed when a circle rolls around a circle with half its radius so that the smaller circle is inside the larger circle. Thus, they belong to the family of curves called centered trochoids; more specifically, they are epitrochoids. The cardioid is the special case in which the point generating the roulette lies on the rolling circle; the resulting curve has a cusp. Depending on the position of the point generating the curve, it may have inner and outer loops (giving the family its name), it may be heart-shaped, or it may be oval. A limaçon is a bicircular rational plane algebraic curve of degree 4. History The earliest formal research on limaçons is generally attributed to Étienne Pascal, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Hérigone
Pierre Hérigone (Latinized as Petrus Herigonius) (1580–1643) was a French mathematician and astronomer. Of Basque origin, Hérigone taught in Paris for most of his life. Works Only one work by Hérigone is known to exist: ''Cursus mathematicus, nova, brevi, et clara methodo demonstratus, per notas reales et universales, citra usum cujuscunque idiomatis intellectu faciles'' (published in Paris in six volumes from 1634 to 1637; second edition 1644), a compendium of elementary mathematics written in French and Latin. The work introduced a system of mathematical and logical notation. It has been said that "Hérigone introduced so many new symbols in this six-volume work that some suggest that the introduction of these symbols, rather than an effective mathematics text, was his goal." Florian Cajori has written that the work contains "a full recognition of the importance of notation and an almost reckless eagerness to introduce an exhaustive set of symbols..." Hérigone may have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of cities in the European Union by population within city limits, fourth-most populous city in the European Union and the List of cities proper by population density, 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, Fashion capital, fashion, and gastronomy. Because of its leading role in the French art, arts and Science and technology in France, sciences and its early adoption of extensive street lighting, Paris became known as the City of Light in the 19th century. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an official estimated population of 12,271,794 inhabitants in January 2023, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
