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John Playfair
John Playfair FRSE, FRS (10 March 1748 – 20 July 1819) was a Church of Scotland minister, remembered as a scientist and mathematician, and a professor of natural philosophy at the University of Edinburgh. He is best known for his book ''Illustrations of the Huttonian Theory of the Earth'' (1802), which summarised the work of James Hutton. It was through this book that Hutton's principle of uniformitarianism, later taken up by Charles Lyell, first reached a wide audience. Playfair's textbook ''Elements of Geometry'' made a brief expression of Euclid's parallel postulate known now as Playfair's axiom. In 1783 he was a co-founder of the Royal Society of Edinburgh. He served as General Secretary to the society 1798–1819. Life Born at Benvie, slightly west of Dundee to Margaret Young (1719/20 – 1805) and Reverend James Playfair (died 1772), the kirk minister of Liff and Benvie. Playfair was educated at home until the age of 14, when he entered the University of St Andrews ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benvie, Forfarshire
Liff is a village in Angus, Scotland, situated west-northwest of Dundee on a south-facing slope north of the River Tay. It had a population of 568 in 2011. Surrounded by farmland, it has been described as 'haunted by wood pigeons and the scent of wild garlic' and having a 'wonderful view over the firth [of Tay]'. east lies the site of the former Royal Dundee Liff Hospital, now given over to private housing. Further east lie Camperdown, Dundee, Camperdown House and Park. south is House of Gray, a large eighteenth-century mansion house in the neoclassical style, currently standing empty. The village contains List of listed buildings in Liff And Benvie, Angus, twelve listed buildings, with others nearby. For several centuries the name Liff denoted a large area, not a village. It comprised the parish of Liff together with its united parishes of Benvie, Invergowrie, Logie, Dundee, Logie, and Lochee, and so included substantial parts of the city of Dundee. The village around th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Archive
The Internet Archive is an American 501(c)(3) organization, non-profit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including websites, Application software, software applications, music, audiovisual, and print materials. The Archive also advocates a Information wants to be free, free and open Internet. Its mission is committing to provide "universal access to all knowledge". The Internet Archive allows the public to upload and download digital material to its data cluster, but the bulk of its data is collected automatically by its web crawlers, which work to preserve as much of the public web as possible. Its web archiving, web archive, the Wayback Machine, contains hundreds of billions of web captures. The Archive also oversees numerous Internet Archive#Book collections, book digitization projects, collectively one of the world's largest book digitization efforts. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liff, Scotland
Liff is a village in Angus, Scotland, situated west-northwest of Dundee on a south-facing slope north of the River Tay. It had a population of 568 in 2011. Surrounded by farmland, it has been described as 'haunted by wood pigeons and the scent of wild garlic' and having a 'wonderful view over the firth f Tay. east lies the site of the former Royal Dundee Liff Hospital, now given over to private housing. Further east lie Camperdown House and Park. south is House of Gray, a large eighteenth-century mansion house in the neoclassical style, currently standing empty. The village contains twelve listed buildings, with others nearby. For several centuries the name Liff denoted a large area, not a village. It comprised the parish of Liff together with its united parishes of Benvie, Invergowrie, Logie, and Lochee, and so included substantial parts of the city of Dundee. The village around the church was known as Kirkton of Liff or simply the Kirkton. An ancient site in the v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Church Of Scotland
The Church of Scotland (CoS; ; ) is a Presbyterian denomination of Christianity that holds the status of the national church in Scotland. It is one of the country's largest, having 245,000 members in 2024 and 259,200 members in 2023. While membership in the church has declined significantly in recent decades (in 1982 it had nearly 920,000 members), the government Scottish Household Survey found that 20% of the Scottish population, or over one million people, identified the Church of Scotland as their religious identity in 2019. In the 2022 census, 20.4% of the Scottish population, or 1,108,796 adherents, identified the Church of Scotland as their religious identity. The Church of Scotland's governing system is Presbyterian polity, presbyterian in its approach, therefore, no one individual or group within the church has more or less influence over church matters. There is no one person who acts as the head of faith, as the church believes that role is the "Lord God's". As a pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Aberdeen
The University of Aberdeen (abbreviated ''Aberd.'' in List of post-nominal letters (United Kingdom), post-nominals; ) is a public university, public research university in Aberdeen, Scotland. It was founded in 1495 when William Elphinstone, Bishop of Aberdeen and Chancellor of Scotland, petitioned Pope Alexander VI on behalf of James IV, King of Scots to establish King's College, Aberdeen, King's College, making it one of Scotland's four Ancient universities of Scotland, ancient universities and the List of oldest universities in continuous operation, fifth-oldest university in the English-speaking world. Along with the universities of University of St Andrews, St Andrews, University of Glasgow, Glasgow, and University of Edinburgh, Edinburgh, the university was part of the Scottish Enlightenment during the 18th century. The university as it is currently constituted was formed in 1860 by a merger between King's College, Aberdeen, King's College and Marischal College, a second un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marischal College
Marischal College ( ) is a large granite building on Broad Street in the centre of Aberdeen in north-east Scotland, and since 2011 has been the headquarters of Aberdeen City Council. The building was constructed for and is on long-term lease from the University of Aberdeen, which still uses parts of the building to store its museum collections. Today, it provides corporate office space and public access to council services, adjacent to the Town House, the city's historic seat of local government. It is the second largest granite building in the world. The construction of the modern college building began in 1835, following the demolition of previous buildings on the site, and was completed in its present form in the early 1900s. Formerly the seat of the Marischal College and University of Aberdeen founded in 1593, the building was retained by the unified University of Aberdeen, which was created in 1860 by the merger of Marischal College and King's College, Aberdeen, King's Coll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edinburgh University
The University of Edinburgh (, ; abbreviated as ''Edin.'' in post-nominals) is a public research university based in Edinburgh, Scotland. Founded by the town council under the authority of a royal charter from King James VI in 1582 and officially opened in 1583, it is one of Scotland's four ancient universities and the sixth-oldest university in continuous operation in the English-speaking world. The university played a crucial role in Edinburgh becoming a leading intellectual centre during the Scottish Enlightenment and contributed to the city being nicknamed the " Athens of the North". The three main global university rankings ( ARWU, THE, and QS) place the University of Edinburgh within their respective top 40. It is a member of several associations of research-intensive universities, including the Coimbra Group, League of European Research Universities, Russell Group, Una Europa, and Universitas 21. In the fiscal year ending 31 July 2024, the university had a total ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liff, Angus
Liff is a village in Angus, Scotland, situated west-northwest of Dundee on a south-facing slope north of the River Tay. It had a population of 568 in 2011. Surrounded by farmland, it has been described as 'haunted by wood pigeons and the scent of wild garlic' and having a 'wonderful view over the firth [of Tay]'. east lies the site of the former Royal Dundee Liff Hospital, now given over to private housing. Further east lie Camperdown, Dundee, Camperdown House and Park. south is House of Gray, a large eighteenth-century mansion house in the neoclassical style, currently standing empty. The village contains List of listed buildings in Liff And Benvie, Angus, twelve listed buildings, with others nearby. For several centuries the name Liff denoted a large area, not a village. It comprised the parish of Liff together with its united parishes of Benvie, Invergowrie, Logie, Dundee, Logie, and Lochee, and so included substantial parts of the city of Dundee. The village around th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirk Minister
A Church of Scotland congregation is led by its minister and elders. Both of these terms are also used in other Christian denominations: see Minister (Christianity) and Elder (Christianity). This article discusses the specific understanding of their roles and functions in the Scottish Church. Terminology The Greek term , used in the New Testament as a designation for the leaders of the Early Church (e.g. Acts 11.30), has three different equivalents in English: ''elder'', ''presbyter'' and ''priest''. ''Priest'' is the oldest, a borrowing into Old English via Latin, ''elder'' (first attested 1526) is a translation of the underlying meaning of the Greek word, and ''presbyter'' (1597) is a learned correction of the loan-word. However, the semantics of ''priest'' are complicated by the fact that it is traditionally used also as the translation of a different New Testament Greek word, , which refers to those who perform sacrificial rites in the Jerusalem temple and in pagan t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dundee
Dundee (; ; or , ) is the List of towns and cities in Scotland by population, fourth-largest city in Scotland. The mid-year population estimate for the locality was . It lies within the eastern central Lowlands on the north bank of the Firth of Tay, which feeds into the North Sea. Under the name of Dundee City, it forms one of the 32 Council areas of Scotland, council areas used for local government in Scotland. Within the boundaries of the Shires of Scotland, historic county of Angus, Scotland, Angus, the city developed into a burgh in the late 12th century and established itself as an important east coast trading port. Rapid expansion was brought on by the Industrial Revolution, particularly in the 19th century when Dundee was the centre of the global jute industry. This, along with its other major industries, gave Dundee its epithet as the city of "jute, jam and journalism". With the decline of traditional industry, the city has adopted a plan to regenerate and reinvent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benvie
Benvie, is a hamlet and former parish and feudal barony in Angus, Scotland. The hamlet is situated on the Invergowrie Burn, northwest of Dundee Dundee (; ; or , ) is the List of towns and cities in Scotland by population, fourth-largest city in Scotland. The mid-year population estimate for the locality was . It lies within the eastern central Lowlands on the north bank of the Firt ..., surrounded by agricultural land. The parish was joined with the parish of Liff in 1758. The former parish church is in ruins and a Pictish cross-slab of the 9th Century stood in the churchyard. The feudal barony of Benvie was held by the Valognes family from the 12th century, until passing by the heiress Christina to the Maule family, in the 13th century. Populated places in Angus, Scotland Former church parishes of Scotland References *Frances Groome's Ordnance Gazetteer of Scotland, 1882-4. {{authority control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parallel Postulate
In geometry, the parallel postulate is the fifth postulate in Euclid's ''Elements'' and a distinctive axiom in Euclidean geometry. It states that, in two-dimensional geometry: If a line segment intersects two straight lines forming two interior angles on the same side that are less than two right angles, then the two lines, if extended indefinitely, meet on that side on which the angles sum to less than two right angles. This postulate does not specifically talk about parallel lines; it is only a postulate related to parallelism. Euclid gave the definition of parallel lines in Book I, Definition 23 just before the five postulates. ''Euclidean geometry'' is the study of geometry that satisfies all of Euclid's axioms, including the parallel postulate. The postulate was long considered to be obvious or inevitable, but proofs were elusive. Eventually, it was discovered that inverting the postulate gave valid, albeit different geometries. A geometry where the parallel postulate do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
