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Bevan Sharpless
Bevan Percival Sharpless (August 2, 1904 – October 28, 1950) was an American astronomer, best known for his 1944 discovery that the orbit of Phobos was decaying. Early life Sharpless was born to Ethel Mae Bevan and Albert Wayne Sharpless on August 2, 1904, in Chester Heights, Pennsylvania, the only child of the marriage. He attended Swarthmore High School then Swarthmore College, graduating in 1926 with an A.B. degree in mathematics. In 1923, he traveled with a group from the college to Yerbanis, Mexico to witness an eclipse of September 10, 1923, and again to New Haven, Connecticut, to observe the solar eclipse of January 24, 1925. He married Ethel May Gamble (1904-2002) on September 10, 1927, in Glenolden, Pennsylvania. Early career For two years after graduation, Sharpless worked as an actuary. He received a temporary appointment with the United States Naval Observatory on August 16, 1928; this became a permanent appointment as a junior astronomer on January 16, 1929. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bevan Sharpless 1930 Press Photo
Bevan is a name of Welsh origin, derived from ab Ifan meaning "son of Evan" (Ifan being a variant of Ieuan, the Welsh equivalent of John). Notable people with the name include: First name *Bevan Congdon (1938–2018), New Zealand cricketer *Bevan Davies, American musician * Bevan Docherty (born 1977), New Zealand athlete *Bevan Dufty (born 1955), American politician *Bevan George (born 1977), Australian hockey player *Bevan Griggs (born 1978), New Zealand cricketer *Bevan Hari (born 1975), New Zealand hockey player *Bevan Meredith (1927–2019), Australian Anglican archbishop of Papua New Guinea *Bevan Sharpless (1904–1950), American astronomer *Bevan Slattery, Australian technology entrepreneur *Bevan Spencer von Einem (born 1946), Australian criminal Surname *Alan Bevan, Canadian bagpipe player *Alonza Bevan (born 1970), English bass player * Aneurin "Nye" Bevan (1897–1960), British Labour Party politician *Benjamin Bevan (1773–1833), British civil engineer * Bev Bevan (b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge University Press
Cambridge University Press is the university press of the University of Cambridge. Granted letters patent by Henry VIII of England, King Henry VIII in 1534, it is the oldest university press in the world. It is also the King's Printer. Cambridge University Press is a department of the University of Cambridge and is both an academic and educational publisher. It became part of Cambridge University Press & Assessment, following a merger with Cambridge Assessment in 2021. With a global sales presence, publishing hubs, and offices in more than 40 Country, countries, it publishes over 50,000 titles by authors from over 100 countries. Its publishing includes more than 380 academic journals, monographs, reference works, school and university textbooks, and English language teaching and learning publications. It also publishes Bibles, runs a bookshop in Cambridge, sells through Amazon, and has a conference venues business in Cambridge at the Pitt Building and the Sir Geoffrey Cass Spo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlanta, Georgia
Atlanta ( ) is the capital and most populous city of the U.S. state of Georgia. It is the seat of Fulton County, the most populous county in Georgia, but its territory falls in both Fulton and DeKalb counties. With a population of 498,715 living within the city limits, it is the eighth most populous city in the Southeast and 38th most populous city in the United States according to the 2020 U.S. census. It is the core of the much larger Atlanta metropolitan area, which is home to more than 6.1 million people, making it the eighth-largest metropolitan area in the United States. Situated among the foothills of the Appalachian Mountains at an elevation of just over above sea level, it features unique topography that includes rolling hills, lush greenery, and the most dense urban tree coverage of any major city in the United States. Atlanta was originally founded as the terminus of a major state-sponsored railroad, but it soon became the convergence point among severa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Air Station Richmond
The Naval Lighter Than Air Station Richmond was a South Florida military installation about south of Miami and west of US 1. It was an active air base during World War II. Since 1948, the University of Miami has used it as a research facility and storage area. History In September 15, 1942, the U.S. Navy purchased ; the base was used as a blimp base. Among the ten LTA bases across the nation, 17 large wooden hangars were built, of which Richmond NAS had more (3) than any other base. On September 15, 1945, a hurricane caused a fire in one of the hangars. The fire quickly spread to the two other hangars and destroyed the hangars, blimps, 366 planes and 150 cars. The same type of wooden hangar can still be seen today at only four locations: (2) Moffett Field in California, (2) Tustin, California, (2) Lakehurst, NJ, and (1) Tillamook, Oregon. In response to the sudden increase in enrollment resulting from veterans returning to college, the University of Miami leased the decommissi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emphysema
Emphysema, or pulmonary emphysema, is a lower respiratory tract disease, characterised by air-filled spaces ( pneumatoses) in the lungs, that can vary in size and may be very large. The spaces are caused by the breakdown of the walls of the alveoli and they replace the spongy lung parenchyma. This reduces the total alveolar surface available for gas exchange leading to a reduction in oxygen supply for the blood. Emphysema usually affects the middle aged or older population because it takes time to develop with the effects of tobacco smoking, and other risk factors. Alpha-1 antitrypsin deficiency is a genetic risk factor that may lead to the condition presenting earlier. When associated with significant airflow limitation, emphysema is a major subtype of chronic obstructive pulmonary disease ( COPD), a progressive lung disease characterized by long-term breathing problems and poor airflow. Without COPD, the finding of emphysema on a CT lung scan still confers a higher m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbital Decay
Orbital decay is a gradual decrease of the distance between two orbiting bodies at their closest approach (the periapsis) over many orbital periods. These orbiting bodies can be a planet and its satellite, a star and any object orbiting it, or components of any binary system. If left unchecked, the decay eventually results in termination of the orbit when the smaller object strikes the surface of the primary; or for objects where the primary has an atmosphere, the smaller object burns, explodes, or otherwise breaks up in the larger object's atmosphere; or for objects where the primary is a star, ends with incineration by the star's radiation (such as for comets). Collisions of stellar-mass objects are usually accompanied by effects such as gamma-ray bursts and detectable gravitational waves. Orbital decay is caused by one or more mechanisms which absorb energy from the orbital motion, such as fluid friction, gravitational anomalies, or electromagnetic effects. For bodies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fred Singer
Siegfried Fred Singer (September 27, 1924 – April 6, 2020) was an Austrian-born American physicist and emeritus professor of environmental science at the University of Virginia, trained as an atmospheric physicist. He was known for rejecting the scientific consensus on several issues, including climate change,Leaked Email Reveals Who's Who List of Climate Denialists Bagley, Katherine. Inside Climate News, March 12, 2015 the connection between e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Sagan
Carl Edward Sagan (; ; November 9, 1934December 20, 1996) was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space, the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the hypothesis, accepted since, that the high surface temperatures of Venus can be attributed to, and calculated using, the greenhouse effect.Extract of page 14 Initially an assistant professor at [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patrick Moore
Sir Patrick Alfred Caldwell-Moore (; 4 March 1923 – 9 December 2012) was an English amateur astronomer who attained prominence in that field as a writer, researcher, radio commentator and television presenter. Moore was president of the British Astronomical Association; co-founder and president of the Society for Popular Astronomy; author of over seventy books on astronomy; and presenter of the world's longest-running television series with the same original presenter, BBC's '' The Sky at Night'' (from 1957). He became known as a specialist in Moon observation and for creating the Caldwell catalogue. Idiosyncrasies such as his rapid diction and monocle made him a popular and instantly recognisable figure on British television. Outside his field of astronomy, Moore was known for his role on the video game television show ''GamesMaster''. Moore was also a self-taught xylophonist and pianist, as well as an accomplished composer. He was an amateur cricketer, golfer and ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iosif Shklovsky
Iosif Samuilovich Shklovsky (russian: Ио́сиф Самуи́лович Шкло́вский; sometimes transliterated ''Josif, Josif, Shklovskii, Shklovskij'') (1 July 1916 – 3 March 1985) was a Soviet astronomer and astrophysicist. He is remembered for work in theoretical astrophysics and other topics, as well as for his 1962 book on extraterrestrial life, the revised and expanded version of which was co-authored by American astronomer Carl Sagan in 1966 as ''Intelligent Life in the Universe''. He won the Lenin Prize in 1960 and the Bruce Medal in 1972. Asteroid 2849 Shklovskij and the crater Shklovsky (on the Martian moon Phobos) are named in his honor. He was a Corresponding Member of Soviet Academy of Sciences since 1966. Early life Shklovsky was born in Hlukhiv, a city in the Ukrainian part of the Russian Empire, into a poor Ukrainian Jewish family. After graduating from the seven-year secondary school, he worked as a foreman on building Baikal Amur Mainl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roche Limit
In celestial mechanics, the Roche limit, also called Roche radius, is the distance from a celestial body within which a second celestial body, held together only by its own force of gravity, will disintegrate because the first body's tidal forces exceed the second body's gravitational self-attraction. Inside the Roche limit, orbiting material disperses and forms rings, whereas outside the limit, material tends to coalesce. The Roche radius depends on the radius of the first body and on the ratio of the bodies' densities. The term is named after Édouard Roche (, ), the French astronomer who first calculated this theoretical limit in 1848. Explanation The Roche limit typically applies to a satellite's disintegrating due to tidal forces induced by its ''primary'', the body around which it orbits. Parts of the satellite that are closer to the primary are attracted more strongly by gravity from the primary than parts that are farther away; this disparity effectively pulls t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Journal
''The Astronomical Journal'' (often abbreviated ''AJ'' in scientific papers and references) is a peer-reviewed monthly scientific journal owned by the American Astronomical Society (AAS) and currently published by IOP Publishing. It is one of the premier journals for astronomy in the world. Until 2008, the journal was published by the University of Chicago Press on behalf of the AAS. The reasons for the change to the IOP were given by the society as the desire of the University of Chicago Press to revise its financial arrangement and their plans to change from the particular software that had been developed in-house. The other two publications of the society, the ''Astrophysical Journal'' and its supplement series, followed in January 2009. The journal was established in 1849 by Benjamin A. Gould. It ceased publication in 1861 due to the American Civil War, but resumed in 1885. Between 1909 and 1941 the journal was edited in Albany, New York. In 1941, editor Benjamin Boss arrange ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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