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Armagh Observatory
Armagh Observatory is an astronomical research institute in Armagh, Northern Ireland. Around 25 astronomers are based at the observatory, studying stellar astrophysics, the Sun, Solar System astronomy and Earth's climate. In 2018, Armagh Observatory was recognized for having 224 years of unbroken weather records. History The Observatory is located close to the centre of the city of Armagh, adjacent to the Armagh Planetarium in approximately of landscaped grounds known as the Armagh Astropark. It was founded in 1789 by The Most Rev. and Rt Hon. The 1st Baron Rokeby, Church of Ireland Lord Primate of All Ireland and Lord Archbishop of Armagh. In 1795 through 1797 Solar observations were made at Armagh, including measurements of sunspots. Ernst Julius Öpik (grandfather of Lembit Öpik MP) was based here for over 30 years and among his many contributions to astrophysics he wrote of the dangers of an asteroid impacting on the Earth. One of the observatory's directors, T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Hamilton (priest)
James Archibald Hamilton (1748–1815) FRIA, Irish cleric and astronomer, was born in the area of Athlone, Co. Westmeath, Ireland. Early life and family He was the son of Jane Girardot ary Jane Crommelin Girardot from a Huguenot family, and Colonel Gustavus Hamilton of Summerseat, Co. Meath, who died in 1754; Mrs.Hamilton later married Arthur Blennerhasset of Ballyseedy, Tralee, Co. Kerry and settled in Oak Park, Tralee. The year his father died, Hamilton moved from Athlone to attend the Royal School, Armagh, along with Rev. Arthur Grueber who became headmaster that year. He went to Trinity College, Dublin in 1765, developing interests in astronomy and science, and graduated with a B.A. in 1769. He married Jane Bunbury, probably sometime between 1770 and 1780 (union unrecorded). The couple had two daughters: Harriet, who was married c.1797 to Peter Holmes, and Jane, who was married in 1800 to Alexander Holmes. They also had two wards, Catherine and Juliana Tisdall. Career ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armagh
Armagh ( ; ga, Ard Mhacha, , "Macha's height") is the county town of County Armagh and a city in Northern Ireland, as well as a civil parish. It is the ecclesiastical capital of Ireland – the seat of the Archbishops of Armagh, the Primates of All Ireland for both the Roman Catholic Church and the Church of Ireland. In ancient times, nearby Navan Fort (''Eamhain Mhacha'') was a pagan ceremonial site and one of the great royal capitals of Gaelic Ireland. Today, Armagh is home to two cathedrals (both named after Saint Patrick) and the Armagh Observatory, and is known for its Georgian architecture. Although classed as a medium-sized town, Armagh was given city status in 1994 and Lord Mayoralty status in 2012, both by Queen Elizabeth II. It had a population of 14,777 people in the 2011 Census. History Foundation ''Eamhain Mhacha'' (or Navan Fort), at the western edge of Armagh, was an ancient pagan ritual or ceremonial site. According to Irish mytholog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Troughton
Edward Troughton FRS FRSE FAS (October 1753 – 12 June 1835) was a British instrument maker who was notable for making telescopes and other astronomical instruments. Life Troughton was born at Corney, Cumberland, the youngest of six children to Francis Troughton, a husbandman on a farm, and his wife, Mary Stable. Originally raised to tend animals, Edward went to London in 1773. He then served an apprenticeship with his uncle, John Troughton (b.c.1716) alongside his elder brother, also John Troughton, and in 1779 he became his business partner and soon established himself as the top maker of navigational, surveying and astronomical instruments in Britain. They were based at 136 Fleet Street in central London. Their shop was called the "Sign of the Orrery". In 1795 he delivered what is now known as the Troughton Equatorial telescope to the Armagh Observatory, a 2-inch aperture refractor telescope mounted equatorially, and its first major instrument since its founding in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael G
Michael may refer to: People * Michael (given name), a given name * Michael (surname), including a list of people with the surname Michael Given name "Michael" * Michael (archangel), ''first'' of God's archangels in the Jewish, Christian and Islamic religions * Michael (bishop elect), English 13th-century Bishop of Hereford elect * Michael (Khoroshy) (1885–1977), cleric of the Ukrainian Orthodox Church of Canada * Michael Donnellan (1915–1985), Irish-born London fashion designer, often referred to simply as "Michael" * Michael (footballer, born 1982), Brazilian footballer * Michael (footballer, born 1983), Brazilian footballer * Michael (footballer, born 1993), Brazilian footballer * Michael (footballer, born February 1996), Brazilian footballer * Michael (footballer, born March 1996), Brazilian footballer * Michael (footballer, born 1999), Brazilian footballer Rulers =Byzantine emperors= *Michael I Rangabe (d. 844), married the daughter of Emperor Nikephoros I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eric Mervyn Lindsay
Eric Mervyn Lindsay FRAS (26 January 1907 – 27 July 1974) was an Irish astronomer. He was born at The Grange near Portadown, County Armagh to Richard and Susan Lindsay. He was educated in Dublin at the King's Hospital School, then attended Queen's University, Belfast where he earned his BSc in 1928 and a MSc in 1929. He later went to Harvard University and was awarded a PhD in 1934. He then went to South Africa for a post-graduate astronomy studies, and on 20 May 1935 was married to Sylvia Mussells in Cape Town. He returned to Ireland in 1937 to become director of the Armagh Observatory. He remained the director of the observatory until his death of a sudden heart attack in 1974. SAO/NASA Astrophysics Data System (ADS), p. 215 He is more noted for his political influen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick William Archdall Ellison
Reverend William Frederick Archdall Ellison FRAS(28 April 1864 – 31 December 1936) was an Irish clergyman, Hebrew scholar, organist, avid amateur telescope maker, and, from 1918 to 1936, director of Armagh Observatory in Armagh, Northern Ireland. He was the father of Mervyn A. Ellison, the senior professor of the School of Cosmic Physics at Dunsink Observatory from 1958 to 1963. Biography Ellison came from a clerical family, his father Humphrey Eakins Ellison having been Dean of Ferns, County Wexford. He gained a sizarship of classics at Trinity College, Dublin in 1883, became a Scholar of the House in 1886 and graduated in 1887 with junior moderatorships in classics and experimental science. In 1890 he took Holy Orders and moved to England, where he became the Curate of Tudhoe and Monkwearmouth. In 1894 he took his MA and BD degrees and in the following year won the Elrington Theological Prize. In 1899 he returned to Ireland to become secretary of the Sunday School Soci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Louis Emil Dreyer
John Louis Emil Dreyer (13 February 1852 – 14 September 1926) was a Danish astronomer who spent most of his career working in Ireland. He spent the last decade of his life in Oxford, England. Life Dreyer was born in Copenhagen. His father, Lieutenant General John Christopher Dreyer, was the Danish Minister for War and the Navy. When he was 14 he became interested in astronomy and regularly visited Hans Schjellerup at the Copenhagen observatory. He was educated in Copenhagen, taking an MA in 1872. While the same university later awarded him a PhD, in 1874. But in 1874, at the age of 22, he went to Parsonstown, Ireland. There he worked as the assistant of Lord Rosse (the son and successor of the Lord Rosse who built the Leviathan of Parsonstown telescope). During 1878 he moved to Dunsink, the site of the Trinity College Observatory of Dublin University to work for Robert Stawell Ball. In 1882 he relocated again, this time to Armagh Observatory, where he served as Director ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Romney Robinson
John Thomas Romney Robinson FRS FRSE (23 April 1792 – 28 February 1882), usually referred to as Thomas Romney Robinson, was a 19th-century Irish astronomer and physicist. He was the longtime director of the Armagh Astronomical Observatory, one of the chief astronomical observatories in the UK of its time. He is remembered as inventor of the 4-cup anemometer. Biography Robinson was born at St Anne's in Dublin, the son of the English portrait painter Thomas Robinson (d. 1810) and his wife, Ruth Buck (d. 1826). He was educated at Belfast Academy then studied Divinity at Trinity College Dublin, where he was elected a Scholar in 1808, graduating BA in 1810 and obtaining a fellowship in 1814, at the age of 22. He was for some years a deputy professor of natural philosophy (physics) at Trinity. Having been also ordained as an Anglican priest while at Trinity, he obtained the church livings of the Anglican Church at Enniskillen and at Carrickmacross in 1824. In 1823, now a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speculum Metal
Speculum metal is a mixture of around two-thirds copper and one-third tin, making a white brittle alloy that can be polished to make a highly reflective surface. It was used historically to make different kinds of mirrors from personal grooming aids to optical devices until it was replaced by more modern materials such as metal-coated glass mirrors. Speculum metal mixtures usually contain two parts copper to one part tin along with a small amount of arsenic, although there are other mixtures containing silver, lead, or zinc. This is about twice the proportion of tin to copper typically used in bronze alloys. Archaeologists and others prefer to call it "high-tin bronze", although this broad term is also used for other alloys such as bell metal, which is typically around 20% tin. Large speculum metal mirrors are hard to manufacture, and the alloy is prone to tarnish, requiring frequent re-polishing. However, it was the only practical choice for large mirrors in high-precision op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunshine Recorder
A sunshine recorder is a device that records the amount of sunshine at a given location or region at any time. The results provide information about the weather and climate as well as the temperature of a geographical area. This information is useful in meteorology, science, agriculture, tourism, and other fields. It has also been called a heliograph. There are two basic types of sunshine recorders. One type uses the sun itself as a time-scale for the sunshine readings. The other type uses some form of clock for the time scale. Older recorders required a human observer to interpret the results; recorded results might differ among observers. Modern sunshine recorders use electronics and computers for precise data that do not depend on a human interpreter. Newer recorders can also measure the global and diffuse radiation. External links Komoka Sunrecorder Current Images Sunshine recorders A sunshine recorder is a device that records the amount of sunshine at a given locat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mural Circle
A mural is any piece of graphic artwork that is painted or applied directly to a wall, ceiling or other permanent substrate. Mural techniques include fresco, mosaic, graffiti and marouflage. Word mural in art The word ''mural'' is a Spanish adjective that is used to refer to what is attached to a wall. The term ''mural'' later became a noun. In art, the word mural began to be used at the beginning of the 20th century. In 1906, Dr. Atl issued a manifesto calling for the development of a monumental public art movement in Mexico; he named it in Spanish ''pintura mural'' (English: ''wall painting''). In ancient Roman times, a mural crown was given to the fighter who was first to scale the wall of a besieged town. "Mural" comes from the Latin ''muralis'', meaning "wall painting". History Antique art Murals of sorts date to Upper Paleolithic times such as the cave paintings in the Lubang Jeriji Saléh cave in Borneo (40,000-52,000 BP), Chauvet Cave in Ardèche department of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Earnshaw
Thomas Earnshaw (4 February 1749 in Ashton-under-Lyne – 1 March 1829 in London) was an English watchmaker who, following John Arnold's earlier work, further simplified the process of marine chronometer production, making them available to the general public. He is also known for his improvements to the transit clock at the Royal Greenwich Observatory in London and his invention of a chronometer escapement and a form of bimetallic compensation balance.Thomas Earnshaw at Encyclopædia Britannica Online. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
