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Topic: Arthur Stanley Eddington


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In the News (Fri 25 Dec 09)

  
  Arthur Eddington
Sir Arthur Stanley Eddington (December 28, 1882 - November 22, 1944) was arguably the most important astrophysicist from the early 20th century.
Eddington wrote an article, Report on the relativity theory of gravitation, which announced Einstein's theory of general relativity to the English-speaking world.
Eddington also investigated the interior of stars, and calculated their temperature based on what would be necessary to withstand the pressure of the higher-laying layers.
www.ebroadcast.com.au /lookup/encyclopedia/ar/Arthur_Eddington.html   (364 words)

  
 Astrophysics and Mysticism: the life of Arthur Stanley Eddington
Arthur Stanley Eddington was born on 28 Dec 1882 in Kendal, on the edge of the Lake District.
Eddington thought he had a proof that the inverse of the fine structure constant (the dimensionless constant formed from the values h, c and e, that governs the strength of radiative interactions in atoms) is precisely 137.
Eddington identifies three types of knowledge: (1) structural, with the approximate meaning of mathematical, but in Eddington's thinking the structure appears to be almost identified with Group theory, (2) direct awareness (approximately sensation) and (3) sympathetic understanding, which he argues is essential because a remembered sensation is sympathetic understanding of a past sensation.
silas.psfc.mit.edu /eddington   (4942 words)

  
 Eddington, Arthur
Eddington studied in Cambridge, and was the best of his class; he finishes his studies there in 1904 and started to work as an astronomy teacher in 1913.
Eddington decided that the expansive force of the heat and the pressure of the radiation contrasted with the force of the gravity making the resultant force equal to 0.
Eddington was one of the firsts to appreciate the importance of the Theory of Relativity, he observer the total eclipse in 1919 that put a base to Einstein's theory.
library.thinkquest.org /C0114565/content.php?id=43   (288 words)

  
 Arthur Eddington Biography   (Site not responding. Last check: 2007-11-04)
The Eddington limit, the natural limit to the luminosity that can be radiated by accretion onto a compact object, is named in his honour.
In 1920, Eddington, on the basis of the precise measurements of atoms by F. Aston, was the first to suggest that stars obtained their energy from nuclear fusion of hydrogen to helium.
Eddington at one time thought the fine structure constant α, which had been measured at approximately 1/137, should be exactly 1/137, based on aesthetic and numerological arguments.
www.biographybase.com /biography/Eddington_Arthur.html   (724 words)

  
 Comprehensive information and links about Arthur Eddington
"Eddington helped to experimentally verify the theory of general relativity by observing the appearance of stars around the region of a solar eclipse." Eddington helped to experimentally verify the theory of general relativity by observing the appearance of stars around the region of a solar eclipse.
Eddington's observations confirmed Einstein's theory, and were hailed at the time as a conclusive proof of general relativity over the Newtonian model; the news was reported in newspapers all over the world as a major story.
In 1920, Eddington, on the basis of the precise measurements of atomic weights by F. Aston, was the first to suggest that stars obtained their energy from nuclear fusion of hydrogen to helium.
www.quicknation.com /Arthur_Eddington.htm   (1475 words)

  
 Sir Arthur Stanley Eddington - Biography
Eddington was the son of the headmaster of Stramongate School, an old Quaker foundation in Kendal near Lake Windermere in the northwest of England.
During the total eclipse of the sun, it was found that the positions of stars seen just beyond the eclipsed solar disk were, as the general theory of relativity had predicted, slightly displaced away from the centre of the solar disk.
Eddington was the first expositor of relativity in the English language.
angelfire.com /zine/baptistsurfer/Eddington.html   (817 words)

  
 Eddington biography
Arthur Eddington's mother, Sarah Ann Stout, came from Darlington and, like her husband, was also from a Quaker family.
Eddington was a Smith's prize winner for an essay on the proper motions of stars in 1907, and he was awarded a Trinity College Fellowship.
Eddington had a fascination with the fundamental constants of nature and produced some surprising numerical coincidences most of which were published after his death in Fundamental Theory (1946), a book prepared for publication by Whittaker.
www-history.mcs.st-andrews.ac.uk /Biographies/Eddington.html   (2050 words)

  
 The Sun: Man's Friend & Foe - Eddington
Arthur Stanley Eddington was born in Kendal, England in December of 1882.
As Eddington came from a Quaker tradition he avoided active war service and was able to continue his research at Cambridge during the war years of 1914-1918.
Eddington had a fascination with the fundamental constants of nature and produced some surprising numerical coincidences.
library.thinkquest.org /15215/History/eddington.html?tqskip=1   (444 words)

  
 Arthur Stanley Eddington Biography | World of Scientific Discovery
Arthur Stanley Eddington was born in Kendal, Westmoreland, England, on December 28, 1882.
Eddington, however, postulated that any material pulled from a star's core would expand violently into a thin gas once released from the pressure that contained it.
Another theory Eddington formulated concerns Cepheid variable star s; they pulsate regularly, changing both their size and brightness, because they are at the edge of stability.
www.bookrags.com /biography/arthur-stanley-eddington-wsd   (415 words)

  
 Clausen, B. L. --- on Arthur S. Eddington   (Site not responding. Last check: 2007-11-04)
Arthur Eddington was a professor at Cambridge University for most of his career and his studies there led to the first understanding of the internal constitution of stars.
Eddington was elected to fellowship of the Royal Society in 1914, was awarded the knighthood in 1930, and became President of the International Astronomical Union in 1938.
Eddington took the passage in 1 Kings 19:11,12 as nearest to his own sympathies: the Lord was not in the wind, earthquake, or fire that Elijah saw on Mt. Horeb, but in the still small voice.
www.grisda.org /bclausen/papers/co46.htm   (442 words)

  
 Eddington, Arthur Stanley (1882-1944)
He contributed much to the introduction of Einstein’s general theory of relativity into cosmology, writing books on the new theory for both his fellow scientists and the public, and led one of the two 1919 solar eclipse expeditions that confirmed the predicted bending of starlight by gravity.
Eddington’s greatest contributions concerned the astrophysics of stars.
He dealt with the importance of radiation pressure, the transfer of energy by radiation, the mass-luminosity relation, pulsations in Cepheid variables, and the very high densities of white dwarfs, and was among the first to argue that subatomic reactions must power the stars.
www.daviddarling.info /encyclopedia/E/Eddington_Arthur.html   (239 words)

  
 Arthur Stanley Eddington Summary
The English astronomer Sir Arthur Stanley Eddington (1882-1944) greatly advanced theoretical astrophysics as a consequence of his original contributions to the theory of relativity and his studies on the internal constitution of stars.
In 1919 Eddington led the famous solar eclipse expedition to West Africa and proved, as Einstein's theory demanded, that starlight is deflected in passing close to a massive body such as the sun.
Later, Eddington generalized H. Weyl's theory of the electromagnetic field, and in 1925 W. Adams spectroscopically verified Eddington's 1924 prediction of a large gravitational red shift of the light emitted by Sirius's white dwarf companion.
www.bookrags.com /Arthur_Stanley_Eddington   (2846 words)

  
 Gifford Lecture Series - Biography - Arthur Eddington
Sir Arthur Stanley Eddington can be considered the father of theoretical astrophysics because of his work on stellar dynamics and composition, and his exposition and application of Einstein’s relativity theories (announced in 1905 and 1915).
The positive result, announced by Eddington and others in the Royal Society under the gaze of Newton (his portrait was hanging in the meeting room), led, in the words of an Einstein biographer, to the latter’s instant ‘canonization’.
Eddington’s belief that physical theory was strongly constrained by the structure of human mental processes led him to postulate a mental substratum to everything, of which physical science had little to say.
www.giffordlectures.org /Author.asp?AuthorID=57   (741 words)

  
 Eddington's Temperature of Space
Eddington then specifies a model for the spectrum of his estimate for the interstellar radiation field which is plotted in blue in the figure below.
It is clear that Eddington's model fits the optical data, but that Eddington did not anticipate either the CMB (red curve) or the interstellar dust (ISD, green curve).
In fact, Eddington's model is a factor of more than 700 million times too small at the 2.64 mm wavelength of the CN transition [the vertical line on the left in the plot] where a measurement of 2.3 K was made in 1941.
www.astro.ucla.edu /~wright/Eddington-T0.html   (742 words)

  
 The religion of Arthur Stanley Eddington, physicist
At 47, Arthur Stanley Eddington (1882-1944) confessed in his Swarthmore Lecture at the Friends Yearly Meeting (London 1929) to "the wonder and humility we feel in the contemplation of the stars"; "the majesty of the infinitely great, the marvel of the infinitely small...
Eddington believed that experience and thought are inseparable in understanding natural phenomena.
Eddington's philosophical outlook tended to be neo-Kantian (Immanuel Kant himself was nurtured in Germanic pietism, which is similar to Quakerism).
www.adherents.com /people/pe/Arthur_Eddington.html   (586 words)

  
 Arthur Stanley Eddington Bibliography
Eddington, A.S., “The Recession of the Extragalactic Nebulae,” MNRAS 92, 3 (1931).
Eddington, A.S., “Ionisation Equilibrium in a Convective Region,” MNRAS 101, 177-81 (1941).
Eddington, A.S., “The Recession-Constant of the Galaxies,” MNRAS 104, 200-04 (1944).
www.phys-astro.sonoma.edu /BruceMedalists/Eddington/EddingtonRefs.html   (1377 words)

  
 AllRefer.com - Sir Arthur Stanley Eddington (Astronomy, Biography) - Encyclopedia   (Site not responding. Last check: 2007-11-04)
Sir Arthur Stanley Eddington 1882–1944, British astronomer and physicist.
Eddington was one of the first physicists to grasp the theory of relativity, of which he became a leading exponent.
He organized the expedition to view a total solar eclipse in 1919; his observations of bright objects near the sun confirmed the prediction of general relativity that light rays are bent when subjected to a strong gravitational field.
reference.allrefer.com /encyclopedia/E/Eddingto.html   (307 words)

  
 Eddington, Arthur Stanley; Eddington, Arthur Stanley; Bondi, Hermann: Space, Time, and Gravitation: An Outline of the ...   (Site not responding. Last check: 2007-11-04)
Eddington, Arthur Stanley; Eddington, Arthur Stanley; Bondi, Hermann: Space, Time, and Gravitation: An Outline of the General Relativity Theory
Eddington, Arthur Stanley; Eddington, Arthur Stanley; Bondi, Hermann
Sir Arthur Eddington's account of the general theory of relativity, 'without, ' as he says in his preface, 'introducing anything very technical in the way of mathematics, physics or philosophy', was first published in the exciting days of 1920 soon after the first objective tests of the theory had demonstrated its validity.
www.forbesbookclub.com /BookPage.asp?prod_cd=I3QMN   (226 words)

  
 The Bruce Medalists: Arthur Stanley Eddington
Arthur Stanley Eddington was born in England and educated at Manchester and the University of Cambridge.
Eddington wrote thirteen books, many of them for the general reader.
Stanley, Matthew, “Explorer of Stars and Souls: Arthur Stanley Eddington,” Physics World 18, 9, 1 (Sept. 2005) [abstract].
www.phys-astro.sonoma.edu /brucemedalists/Eddington/index.html   (485 words)

  
 Explorer of stars and souls: Arthur Stanley Eddington (September 2005) - Physics World - PhysicsWeb
Born in 1882, Arthur Eddington was one of the world's leading astrophysicists
From the halls of the Royal Astronomical Society to the shores of West Africa, Arthur Eddington was no ordinary scientist.
Matthew Stanley teaches in the Department of History at Iowa State University in the US Physics World alerts
physicsweb.org /articles/world/18/9/5/1   (340 words)

  
 Arthur Stanley Eddington - Wikipedia, the free encyclopedia
Eddington received an MA in 1915 and did not have a doctorate or doctoral advisor.
Eddington's observations published next year (Dyson, F.W., Eddington, A.S., and Davidson, C.R. A Determination of the Deflection of Light by the Sun's Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919 Mem.
Soc., 220, 291-333) confirmed Einstein's theory, and were hailed at the time as a conclusive proof of general relativity over the Newtonian model; the news was reported in newspapers all over the world as a major story.
en.wikipedia.org /wiki/Arthur_Stanley_Eddington   (1762 words)

  
 Eddington Sir Arthur Stanley - Search Results - MSN Encarta
Eddington Sir Arthur Stanley - Search Results - MSN Encarta
Eddington, Sir Arthur Stanley (1882-1944), British astronomer and physicist, who did important work in relativity and astronomy.
Doyle, Sir Arthur Conan : Sherlock Holmes: Sherlock Holmes
encarta.msn.com /Eddington_Sir_Arthur_Stanley.html   (136 words)

  
 Eddington Measurements Show Light Bends   (Site not responding. Last check: 2007-11-04)
Arthur Eddington, a Quaker astronomer, immediately saw the importance of Einstein's theory.
Eddington's work was a first step in demonstrating the credibility of the Bible account of creation.
Although critics said Eddington's findings were wrong, they have been backed up by many other observations with better instruments.
chi.gospelcom.net /morestories/eddington.shtml   (632 words)

  
 2076. Sir Arthur Stanley Eddington (1882-1944). Respectfully Quoted: A Dictionary of Quotations. 1989
If an army of monkeys were strumming on typewriters they might write all the books in the British Museum.
ARTHUR S. The Nature of the Physical World, chapter 4, p.
Eddington calls this “a rather classical illustration” of chance.
www.bartleby.com /73/2076.html   (161 words)

  
 Eddington, Arthur Stanley; Chandrasekhar, S.: The Internal Constitution of the Stars
The publication of The Internal Constitution of the Stars by Arthur Eddington in 1926 was a major landmark in the development of modern theoretical astrophysics.
Not only did Eddington effectively create the discipline of the structure, constitution, and the evolution of the stars, but he also recognised and established the basic elements of our present understanding of the subject.
The influence of the book is indicated by the remark by H. Russell in 1945: 'This volume has every claim to be regarded as a masterpiece of the first rank'.
www.forbesbookclub.com /BookPage.asp?prod_cd=I3QMM   (116 words)

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