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Amateur Telescope Maker
''Amateur Telescope Making'' (''ATM'') is a series of three books edited by Albert G. Ingalls between 1926 and 1953 while he was an associate editor at ''Scientific American''. The books cover various aspects of telescope construction and observational technique, sometimes at quite an advanced level, but always in a way that is accessible to the intelligent amateur. The caliber of the contributions is uniformly high and the books have remained in constant use by both amateurs and professionals. The first volume was essentially a reprinting of articles written by Ingalls and Russell W. Porter for Ingalls's monthly column "The Backyard Astronomer" (later "The Amateur Scientist") in the 1920s. It also featured numerous drawings by Porter. The two later volumes contained chapters written by James Gilbert Baker, George Ellery Hale, George Willis Ritchey and others on topics ranging from lens grinding to monochromators to photoelectric photometry (astronomy), photometry. Much of the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Graham Ingalls
Albert Graham Ingalls (January 16, 1888–August 13, 1958) was an American scientific editor and amateur astronomer. Through his columns in ''Scientific American'', including " The Amateur Scientist", and his three-volume series ''Amateur Telescope Making'', Ingalls exerted a great influence on amateur astronomy and amateur telescope making in the United States. Biography Ingalls was born in Elmira, New York, an only child. In 1914 he graduated from Cornell University. He worked odd jobs, including telegraph operator, until enlisting in the New York National Guard and serving in France during World War I. In 1923 he became an editor at ''Scientific American'', an affiliation he maintained until his retirement in 1955. He later described his editorial duties as "obtaining articles, editing articles, finding the illustrations, writing the captions, reading the proof and, in general, being wet-nurse to six major articles each month." He started a regular column, "The Back Yard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springfield Mount
Springfield may refer to: * Springfield (toponym), the place name in general Places and locations Australia * Springfield, New South Wales (Central Coast) * Springfield, New South Wales (Snowy Monaro Regional Council) * Springfield, Queensland * Springfield, South Australia * Springfield, Tasmania, a locality * Springfield, Victoria (Shire of Buloke), in north-western Victoria * Springfield, Victoria (Macedon Ranges), in central Victoria Belize * Springfield, Belize Canada * Rural Municipality of Springfield, in Manitoba ** Springfield (provincial electoral district), an electoral division in Manitoba * Springfield Parish, New Brunswick ** Springfield, Kings County, New Brunswick, an unincorporated community * Springfield, Newfoundland and Labrador * Springfield, Nova Scotia * Springfield, Ontario * Springfield, Prince Edward Island Ireland * Springfield, a townland in County Offaly * Springfield, a townland in County Westmeath New Zealand * Springfield, New Zea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1937 Non-fiction Books
Events January * January 1 – Anastasio Somoza García becomes President of Nicaragua. * January 5 – Water levels begin to rise in the Ohio River in the United States, leading to the Ohio River flood of 1937, which continues into February, leaving 1 million people homeless and 385 people dead. * January 15 – Spanish Civil War: Second Battle of the Corunna Road ends inconclusively. * January 20 – Second inauguration of Franklin D. Roosevelt: Franklin D. Roosevelt is sworn in for a second term as President of the United States. This is the first time that the United States presidential inauguration occurs on this date; the change is due to the ratification in 1933 of the Twentieth Amendment to the United States Constitution. * January 23 – Moscow Trials: Trial of the Anti-Soviet Trotskyist Center – In the Soviet Union 17 leading Communists go on trial, accused of participating in a plot led by Leon Trotsky to overthrow Joseph Stalin's regime, and assassinate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1926 Non-fiction Books
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album ''Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipknot. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Frederick 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 Societ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John M
John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second Epistle of John, often shortened to 2 John * Third Epistle of John, often shortened to 3 John People * John the Baptist (died c. AD 30), regarded as a prophet and the forerunner of Jesus Christ * John the Apostle (lived c. AD 30), one of the twelve apostles of Jesus * John the Evangelist, assigned author of the Fourth Gospel, once identified with the Apostle * John of Patmos, also known as John the Divine or John the Revelator, the author of the Book of Revelation, once identified with the Apostle * John the Presbyter, a figure either identified with or distinguished from the Apostle, the Evangelist and John of Patmos Other people with the given name Religious figures * John, father of Andrew the Apostle and Saint Peter * Pope Joh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popular Astronomy (US Magazine)
''Popular Astronomy'' is an American magazine published by John August Media, LLC and hosted at TechnicaCuriosa.com for amateur astronomers. Prior to its revival in 2009, the title was published between 1893 and 1951. It was the successor to ''The Sidereal Messenger'', which was published from March 1882 to 1892. The first issue of ''Popular Astronomy'' appeared in September 1893. Each yearly volume of ''Popular Astronomy'' contained 10 issues, for a total of 59 volumes. The first editor, from 1893–1909, was William W. Payne of Carleton College, with Charlotte R. Willard as co-editor 1893–1905. Payne was followed by Herbert C. Wilson, who served in the post between 1909 and 1926. Dr. Curvin Henry Gingrich, Professor of Mathematics and Astronomy at Carleton, served as the final editor for the initial publication run, which ended with his sudden death (by heart attack) in 1951. Dr. Gingrich received a six page eulogy written by Dr. Frederick C. Leonard, in the August 1951 iss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sky And Telescope
''Sky & Telescope'' (''S&T'') is a monthly American magazine covering all aspects of amateur astronomy, including the following: *current events in astronomy and space exploration; *events in the amateur astronomy community; *reviews of astronomical equipment, books, and computer software; *amateur telescope making; and *astrophotography. The articles are intended for the informed lay reader and include detailed discussions of current discoveries, frequently by participating scientists. The magazine is illustrated in full color, with both amateur and professional photography of celestial sights, as well as tables and charts of upcoming celestial events. History ''Sky & Telescope'' was founded by Charles A Federer and his wife Helen Spence Federer and began publication at Harvard College Observatory in November 1941, as a result of the merger of the separate magazines, '' The Sky'' and '' The Telescope''. In 2005, Sky Publishing Corporation was acquired by New Track Media New is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Telescope Making (hobby)
''Amateur Telescope Making'' (''ATM'') is a series of three books edited by Albert G. Ingalls between 1926 and 1953 while he was an associate editor at ''Scientific American''. The books cover various aspects of telescope construction and observational technique, sometimes at quite an advanced level, but always in a way that is accessible to the intelligent amateur. The caliber of the contributions is uniformly high and the books have remained in constant use by both amateurs and professionals. The first volume was essentially a reprinting of articles written by Ingalls and Russell W. Porter for Ingalls's monthly column "The Backyard Astronomer" (later " The Amateur Scientist") in the 1920s. It also featured numerous drawings by Porter. The two later volumes contained chapters written by James Gilbert Baker, George Ellery Hale, George Willis Ritchey and others on topics ranging from lens grinding to monochromators to photoelectric photometry. Much of the information, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schmidt Camera
A Schmidt camera, also referred to as the Schmidt telescope, is a catadioptric astrophotographic telescope designed to provide wide fields of view with limited aberrations. The design was invented by Bernhard Schmidt in 1930. Some notable examples are the Samuel Oschin telescope (formerly Palomar Schmidt), the UK Schmidt Telescope and the ESO Schmidt; these provided the major source of all-sky photographic imaging from 1950 until 2000, when electronic detectors took over. A recent example is the Kepler space telescope exoplanet finder. Other related designs are the Wright camera and Lurie–Houghton telescope. Invention and design The Schmidt camera was invented by German–Estonian optician Bernhard Schmidt in 1930. Its optical components are an easy-to-make spherical primary mirror, and an aspherical correcting lens, known as a Schmidt corrector plate, located at the center of curvature of the primary mirror. The film or other detector is placed inside the camera, at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photometry (astronomy)
Photometry, from Greek '' photo-'' ("light") and '' -metry'' ("measure"), is a technique used in astronomy that is concerned with measuring the flux or intensity of light radiated by astronomical objects. This light is measured through a telescope using a photometer, often made using electronic devices such as a CCD photometer or a photoelectric photometer that converts light into an electric current by the photoelectric effect. When calibrated against standard stars (or other light sources) of known intensity and colour, photometers can measure the brightness or apparent magnitude of celestial objects. The methods used to perform photometry depend on the wavelength region under study. At its most basic, photometry is conducted by gathering light and passing it through specialized photometric optical bandpass filters, and then capturing and recording the light energy with a photosensitive instrument. Standard sets of passbands (called a photometric system) are defined to allow a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
