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Abraham Sharp
Abraham Sharp (1653 – 18 July 1742) was an English mathematician and astronomer. Life Sharp was born in Horton Hall in Little Horton, Bradford, the son of well-to-do merchant John Sharp and Mary (née Clarkson) Sharp and was educated at Bradford Grammar School. In 1669 he became a merchant's apprentice before becoming a schoolmaster in Liverpool and subsequently a bookkeeper in London. His wide knowledge of mathematics and astronomy attracted Flamsteed's attention and it was through Flamsteed that Sharp was invited, in 1688, to enter the Greenwich Royal Observatory. There he did notable work, improving instruments and showing great skill as a calculator, publishing ''Geometry Improved'' and logarithmic tables. Sharp calculated pi to 72 decimal places using an arctan sequence, briefly holding the record until John Machin calculated 100 digits in 1706. He returned to Little Horton in 1694. When the Atlas Coelestis – the largest star map at the time was published – it c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Horton
Little Horton (population 17,368 - 2001 UK census) is a ward in the City of Bradford Metropolitan District Council in the county of West Yorkshire, England, named after the de Horton family, who were once Lords of the Manor. The population at the 2011 Census was 21,547. As well as the area of Little Horton, the electoral ward includes the area of West Bowling, Marshfields and the Canterbury housing estate. Introduction Little Horton is located on gently sloping land to the southeast of Bradford. The area has an ancient history and is a pre-industrial settlement. It was originally an area of farmland, but the soil was so poor that arable crop farming was nearly impossible, making manufacturing and trade the keystone of the economy. The place-name ''Horton'' is a common one in England. It derives from Old English ''horu'' 'dirt' and ''tūn'' 'settlement, farm, estate', presumably meaning 'farm on muddy soil'. The ‘Little’ part of the title only refers to the fact that ‘L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas Coelestis
The ''Atlas Coelestis'' is a star atlas published posthumously in 1729, based on observations made by the First Astronomer Royal, John Flamsteed. The ''Atlas'' – the largest that ever had been published and the first comprehensive telescopic star catalogue and companion celestial atlas – contains 26 maps of the major constellations visible from Greenwich, with drawings made in the Rococo style by James Thornhill. It also presents two planispheres designed by Abraham Sharp. History The first stellar atlas based in telescopic observations, the ''Atlas Coelestis'' was published only ten years after the death of Flamsteed, by his widow, assisted by Joseph Crosthwait and Abraham Sharp. It was preceded by the opus "Stellarum inerrantium Catalogus Britannicus" (or simply "British Catalogue", published in 1725, with 2919 stars). One of Flamsteed's main motivations to produce the ''Atlas'', was to correct the representation of the figures of the constellations, as made by Baye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
17th-century English Mathematicians
The 17th century lasted from January 1, 1601 ( 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 royal court could be more easily k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientists From Bradford
A scientist is a person who conducts scientific research 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 (circa 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. In modern times, many scientists have advanced degrees in an area of science and pursue careers in various sectors of the economy such as academia, industry, government, and nonprofit environments.'''' History The roles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1742 Deaths
Year 174 ( CLXXIV) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gallus and Flaccus (or, less frequently, year 927 ''Ab urbe condita''). The denomination 174 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Empress Faustina the Younger accompanies her husband, Marcus Aurelius, on various military campaigns and enjoys the love of the Roman soldiers. Aurelius gives her the title of ''Mater Castrorum'' ("Mother of the Camp"). * Marcus Aurelius officially confers the title ''Fulminata'' ("Thundering") to the Legio XII Fulminata. Asia * Reign in India of Yajnashri Satakarni, Satavahana king of the Andhra. He extends his empire from the center to the north of India. By topic Art and Science * ''Meditations'' by Marcus Aurelius is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1653 Births
Events January–March * January 3 – By the Coonan Cross Oath, the Eastern Church in India cuts itself off from colonial Portuguese tutelage. * January– The Swiss Peasant War begins after magistrates meeting at Lucerne refuse to hear from a group of peasants who have been financially hurt by the devaluation of the currency issued from Bern. * February 2 – New Amsterdam (later renamed New York City) is incorporated. * February 3 – Cardinal Mazarin returns to Paris from exile. * February 10 – Swiss peasant war of 1653: Peasants from the Entlebuch valley in Switzerland assemble at Heiligkreuz to organize a plan to suspend all tax payments to the authorities in the canton of Lucerne, after having been snubbed at a magisterial meeting in Lucerne. More communities in the canton join in an alliance concluded at Wolhusen on February 26. * February – The Morning Star Rebellion (''Morgonstjärneupproret'') of peasants breaks out in Swede ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synodic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharp (crater)
image:Sharp crater 4158 h2 4158 h3.jpg, 240px, Lunar Orbiter 4 image Sharp is a Lunar craters, lunar impact crater located to the west of the Sinus Iridum bay of the Mare Imbrium, beyond the Montes Jura range. To the southwest is the crater Mairan (crater), Mairan. Because of its location and foreshortening, Sharp appears elliptical from the earth. Sharp is surrounded by a rugged region of mountains and rises. Ridges are joined to the north and south ends of the rim. The crater has a low central peak at the midpoint of the floor. Between Sharp and Sharp A is an unnamed sinuous rille. The more distant Rima Sharp is located on the Mare Frigoris to the northwest. Satellite craters By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Sharp. References * * * * * * * * * * * * {{refend Impact craters on the Moon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Scheemakers
Peter Scheemakers or Pieter Scheemaeckers II or the Younger (10 January 1691 – 12 September 1781) was a Flemish sculptor who worked for most of his life in London. His public and church sculptures in a classicist style had an important influence on the development of modern sculpture in England.Peter Scheemakers at online Encyclopædia Britannica Scheemakers is perhaps best known for executing the -designed memorial to which was erected in |
Bradford Cathedral
Bradford Cathedral, or the Cathedral Church of St Peter, is an Anglican cathedral in Bradford, West Yorkshire, England, one of three co-equal cathedrals in the Diocese of Leeds alongside Ripon and Wakefield. Its site has been used for Christian worship since the 7th century, when missionaries based in Dewsbury evangelised the area. For many centuries it was the parish church of St Peter and achieved cathedral status in 1919. The cathedral is a Grade I listed building. Background The first church on the site was believed to have been built in Anglo-Saxon times and fell into ruin during the Norman Invasion in 1066. A second church was built around 1200. The first mention of the parish of Bradford as distinct from being part of the parish of Dewsbury appears in the register of the Archbishop of York in 1281. Alice de Lacy, widow of Edmund de Lacy, one of the descendants of Ilbert de Lacy, gave a grant to the parish of Bradford that is recorded in the register of the Arch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jesse Ramsden
Jesse Ramsden FRS FRSE (6 October 1735 – 5 November 1800) was a British mathematician, astronomical and scientific instrument maker. His reputation was built on the engraving and design of dividing engines which allowed high accuracy measurements of angles and lengths in instruments. He produced instruments for astronomy that were especially well known for maritime use where they were needed for the measurement of latitudes and for his surveying instruments which were widely used for cartography and land survey both across the British Empire and outside. An achromatic eyepiece that he invented for telescopes and microscopes continues to be known as the Ramsden eyepiece. Life Ramsden was born at Salterhebble, Halifax, West Riding of Yorkshire, England the son of Thomas Ramsden, an innkeeper and his wife Abigail née Flather. Having attended the free school at Halifax from 1744 to 1747, he was sent at the age of twelve to his maternal uncle, Mr Craven, in the North Riding, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planisphere
In astronomy, a planisphere () is a star chart analog computing instrument in the form of two adjustable disks that rotate on a common pivot. It can be adjusted to display the visible stars for any time and date. It is an instrument to assist in learning how to recognize stars and constellations. The astrolabe, an instrument that has its origins in Hellenistic astronomy, is a predecessor of the modern planisphere. The term ''planisphere'' contrasts with ''armillary sphere'', where the celestial sphere is represented by a three-dimensional framework of rings. Description A planisphere consists of a circular star chart attached at its center to an opaque circular overlay that has a clear elliptical window or hole so that only a portion of the sky map will be visible in the window or hole area at any given time. The chart and overlay are mounted so that they are free to rotate about a common axis. The star chart contains the brightest stars, constellations and (possibly) deep- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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