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Alexander Aubert
Alexander Aubert FRS FSA, (1730–1805), was an eminent English amateur astronomer and businessman. Life He was born at Austin Friars, London, 11 May 1730. The appearance of the Great Comet of 1744 gave him, then a schoolboy at Geneva, a permanent bias towards astronomy; but he diligently prepared for a mercantile career in counting-houses at Geneva, Leghorn, and Genoa, and visited Rome in the jubilee year (1750). Returning to London in 1751, he was in the following year taken into partnership by his father. In 1753 he became a director, and some years later governor, of the London Assurance Company. He was elected a fellow of the Royal Society in 1772, and of the Society of Antiquaries in 1784. In 1793 he received a diploma of admission to the St. Petersburg Academy of Sciences. He observed the transit of Venus of 3 June 1769 at Austin Friars, and that of Mercury, 4 May 1786(''Phil. Trans''. Lxxvii. 47) at an observatory built by him at Loampit Hill, near Deptford, and fur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Aubert From Eur Mag 34
Alexander is a male given name. The most prominent bearer of the name is Alexander the Great, the king of the Ancient Greek kingdom of Macedonia who created one of the largest empires in ancient history. Variants listed here are Aleksandar, Aleksander and Aleksandr. Related names and diminutives include Iskandar, Alec, Alek, Alex, Alexandre, Aleks, Aleksa and Sander; feminine forms include Alexandra, Alexandria, and Sasha. Etymology The name ''Alexander'' originates from the (; 'defending men' or 'protector of men'). It is a compound of the verb (; 'to ward off, avert, defend') and the noun (, genitive: , ; meaning 'man'). It is an example of the widespread motif of Greek names expressing "battle-prowess", in this case the ability to withstand or push back an enemy battle line. The earliest attested form of the name, is the Mycenaean Greek feminine anthroponym , , (/ Alexandra/), written in the Linear B syllabic script. Alaksandu, alternatively called ''Alakasandu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islington
Islington () is a district in the north of Greater London, England, and part of the London Borough of Islington. It is a mainly residential district of Inner London, extending from Islington's High Street to Highbury Fields, encompassing the area around the busy High Street, Upper Street, Essex Road (former "Lower Street"), and Southgate Road to the east. Modern definition Islington grew as a sprawling Middlesex village along the line of the Great North Road, and has provided the name of the modern borough. This gave rise to some confusion, as neighbouring districts may also be said to be in Islington. This district is bounded by Liverpool Road to the west and City Road and Southgate Road to the south-east. Its northernmost point is in the area of Canonbury. The main north–south high street, Upper Street splits at Highbury Corner to Holloway Road to the west and St. Paul's Road to the east. The Angel business improvement district (BID), an area centered around the Angel t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fellows Of The Society Of Antiquaries Of London
{{disambiguation ...
Fellows may refer to Fellow, in plural form. Fellows or Fellowes may also refer to: Places *Fellows, California, USA *Fellows, Wisconsin, ghost town, USA Other uses *Fellows Auctioneers, established in 1876. *Fellowes, Inc., manufacturer of workspace products *Fellows, a partner in the firm of English canal carriers, Fellows Morton & Clayton *Fellows (surname) See also *North Fellows Historic District, listed on the National Register of Historic Places in Wapello County, Iowa *Justice Fellows (other) Justice Fellows may refer to: * Grant Fellows (1865–1929), associate justice of the Michigan Supreme Court * Raymond Fellows (1885–1957), associate justice of the Maine Supreme Judicial Court {{disambiguation, tndis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fellows Of The Royal Society
Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the judges of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural knowledge, including mathematics, engineering science, and medical science". Fellowship of the Society, the oldest known scientific academy in continuous existence, is a significant honour. It has been awarded to many eminent scientists throughout history, including Isaac Newton (1672), Michael Faraday (1824), Charles Darwin (1839), Ernest Rutherford (1903), Srinivasa Ramanujan (1918), Albert Einstein (1921), Paul Dirac (1930), Winston Churchill (1941), Subrahmanyan Chandrasekhar (1944), Dorothy Hodgkin (1947), Alan Turing (1951), Lise Meitner (1955) and Francis Crick (1959). More recently, fellowship has been awarded to Stephen Hawking (1974), David Attenborough (1983), Tim Hunt (1991), Elizabeth Blackburn (1992), Tim Berners-Lee (2001), Venki Ramakrishnan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th-century English Businesspeople
The 18th century lasted from January 1, 1701 ( MDCCI) to December 31, 1800 ( MDCCC). During the 18th century, elements of Enlightenment thinking culminated in the American, French, and Haitian Revolutions. During the century, slave trading and human trafficking expanded across the shores of the Atlantic, while declining in Russia, China, and Korea. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that supported slavery. The Industrial Revolution began during mid-century, leading to radical changes in human society and the environment. Western historians have occasionally defined the 18th century otherwise for the purposes of their work. For example, the "short" 18th century may be defined as 1715–1789, denoting the period of time between the death of Louis XIV of France and the start of the French Revolution, with an emphasis on directly interconnected events. To historians who expand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Lewis (topographer)
Samuel Lewis may refer to: Politics * Samuel Lewis (politician) (1799–1854), American politician, Ohio Superintendent of Common Schools and Liberty Party candidate * Samuel A. Lewis (1831–1913), American politician and philanthropist * Samuel Lewis (barrister) (1843–1903), Sierra Leonean politician, lawyer, first African to be knighted * Samuel S. Lewis (1874–1959), Secretary of the Pennsylvania Department of Forest and Waters in 1951–1954 * Sam Lewis (trade unionist) (1901–1976), Australian trade unionist * Samuel W. Lewis (1930–2014), American diplomat * Samuel W. Lewis (politician), American politician * Samuel Lewis Navarro (born 1957), Vice President of Panama Other * Samuel Lewis, early South Australian stonemason who carved the cross on William Light's first memorial * Samuel Lewis (publisher) (c. 1782–1865), editor and publisher of topographical dictionaries and maps * Samuel Lewis (financier) (1837–1901), English money-lender and philanthropist * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daniel Lysons (antiquarian)
Daniel Lysons (1762–1834) was an English antiquarian and topographer, who published, amongst other works, the four-volume ''Environs of London'' (1792–96). He collaborated on several works with his antiquarian younger brother Samuel Lysons (1763–1819). Life The son of the Reverend Samuel Lysons (1730–1804) and Mary Peach Lysons of Rodmarton, Gloucestershire, Lysons studied at Bath Grammar School and St Mary Hall, Oxford, graduating MA in 1785, and followed in his father's footsteps to become a curate in Putney, west London from 1789 to 1800. While at Putney, Lysons began his survey of the area around London, in which he was encouraged by Horace Walpole, who appointed him as his chaplain. In 1800, he inherited the family estates at Hempsted, near Gloucester, from his uncle Daniel Lysons (1727–1800), and the following year married Sarah Hardy (c.1780–1808), with whom he had a son, Samuel. In 1813, he married Josepha Catherine Susanna Cooper (c.1781–1868). His daugh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Gentleman's Magazine
''The Gentleman's Magazine'' was a monthly magazine founded in London, England, by Edward Cave in January 1731. It ran uninterrupted for almost 200 years, until 1922. It was the first to use the term ''magazine'' (from the French ''magazine'', meaning "storehouse") for a periodical. Samuel Johnson's first regular employment as a writer was with ''The Gentleman's Magazine''. History The original complete title was ''The Gentleman's Magazine: or, Trader's monthly intelligencer''. Cave's innovation was to create a monthly digest of news and commentary on any topic the educated public might be interested in, from commodity prices to Latin poetry. It carried original content from a stable of regular contributors, as well as extensive quotations and extracts from other periodicals and books. Cave, who edited ''The Gentleman's Magazine'' under the pen name "Sylvanus Urban", was the first to use the term ''magazine'' (meaning "storehouse") for a periodical. Contributions to the magazi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philosophical Transactions Of The Royal Society
''Philosophical Transactions of the Royal Society'' is a scientific journal published by the Royal Society. In its earliest days, it was a private venture of the Royal Society's secretary. It was established in 1665, making it the first journal in the world exclusively devoted to science, and therefore also the world's longest-running scientific journal. It became an official society publication in 1752. The use of the word ''philosophical'' in the title refers to natural philosophy, which was the equivalent of what would now be generally called ''science''. Current publication In 1887 the journal expanded and divided into two separate publications, one serving the physical sciences ('' Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences'') and the other focusing on the life sciences ('' Philosophical Transactions of the Royal Society B: Biological Sciences''). Both journals now publish themed issues and issues resulting from pap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topham Beauclerk
Topham Beauclerk ( ; 22 December 1739 – 11 March 1780) was a celebrated wit and a friend of Dr Johnson and Horace Walpole. Life Topham Beauclerk was born on 22 December 1739, the only son of Lord Sidney Beauclerk and a great-grandson of King Charles II. He was christened on 19 January 1740 in St James's Church, Piccadilly, in Westminster. In 1744, Sidney Beauclerk died. The four-year-old Topham, and his widowed mother, Mary Beauclerk, moved to Upper Brook Street in London and lived there until 1753. Between 1753 and 1757, Topham Beauclerk probably attended Eton College (this is not completely certain as only his surname, Beauclerk, is noted in the college's register). It seems he did not live in the school as a boarder, but in the family home in nearby Windsor. In November 1757 he matriculated at Trinity College, Oxford, which had been attended by his father. His date of leaving is unknown, but he was still there in 1759, when he first met Samuel Johnson. Like most of his soc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassegrain Reflector
The Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas, the main characteristic being that the optical path folds back onto itself, relative to the optical system's primary mirror entrance aperture. This design puts the focal point at a convenient location behind the primary mirror and the convex secondary adds a telephoto effect creating a much longer focal length in a mechanically short system. In a symmetrical Cassegrain both mirrors are aligned about the optical axis, and the primary mirror usually contains a hole in the center, thus permitting the light to reach an eyepiece, a camera, or an image sensor. Alternatively, as in many radio telescopes, the final focus may be in front of the primary. In an asymmetrical Cassegrain, the mirror(s) may be tilted to avoid obscuration of the primary or to avoid the need for a hole in the primary mirror (or both). The classic Cassegrain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achromatic Lens
An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths (typically red and blue) into focus on the same plane. The most common type of achromat is the achromatic doublet, which is composed of two individual lenses made from glasses with different amounts of dispersion. Typically, one element is a negative (concave) element made out of flint glass such as F2, which has relatively high dispersion, and the other is a positive (convex) element made of crown glass such as BK7, which has lower dispersion. The lens elements are mounted next to each other, often cemented together, and shaped so that the chromatic aberration of one is counterbalanced by that of the other. In the most common type (shown), the positive power of the crown lens element is not quite equalled by the negative power of the flint lens element. Together they form a weak positive lens that will b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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