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         De Sitter Willem:     more books (16)
  1. Astronome Néerlandais: Christian Huygens, Anton Pannekoek, Willem de Sitter, Pieter Dirkszoon Keyser, Bart Bok, Jacobus Kapteyn (French Edition)
  2. William De Sitter: Een Menschenleven. by Willem de (1872-1934)] SITTER-SUERMONDT, E. de. [SITTER, 1948-01-01
  3. Kosmos;: A course of six lectures on the development of our insight into the structure of the universe, delivered for the Lowell institute in Boston, in November 1931, by Willem de Sitter, 1932
  4. On the system of astronomical constants (Bulletin of the Astronomical institutes of the Netherlands) by Willem de Sitter, 1937
  5. On the longitude of the sun in the years 1864-1900, and the rotation of the earth (Bulletin of the astronomical institutes of the Netherlands) by Willem de Sitter, 1927
  6. Willem de Sitter by Frank Schlesinger, 1935
  7. On the expanding universe, by Willem de Sitter, 1932
  8. Short history of the Observatory of the University at Leiden, 1633-1933, by Willem de Sitter, 1933
  9. A determination of the inclinations and nodes of the orbits of Jupiter's satellites (Annals of the Royal Observatory, Cape of Good Hope) by Willem de Sitter, 1906
  10. Derivation of final inclinations and nodes of the orbital planes of Jupiter's satellites (Annals of the Cape Observatory) by Willem de Sitter, 1914
  11. Kosmos A course of six lectures on the development of our insight into the struc by Willem de Sitter, 1932-01-01
  12. Jupiter's Galilean satellites: George Darwin lecture by Willem de Sitter, 1931
  13. On the secular accelerations and the fluctuations of the longitudes of the moon, the sun, Mercury, and Venus by Willem de Sitter, 1927
  14. The astronomical aspect of the theory of relativity, (University of California publications in mathematics) by Willem de Sitter, 1933

1. Sitter, Willem De
Sitter, Willem de (18721934) Dutch astronomer, mathematician, and physicist, who contributed to the birth of modern cosmology.
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2. Sitter, Willem De. The American Heritage Dictionary Of The
Sitter, Willem de. The American Heritage Dictionary of the English Language Fourth Edition. 2000.
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3. Sitter, Willem De. The Columbia Encyclopedia, Sixth Edition. 2001
Sitter, Willem de. The Columbia Encyclopedia, Sixth Edition. 2001
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4. De Sitter, Willem
More on de sitter willem from Infoplease. Willem de Sitter Sitter, Willem de ,1872–1934, Dutch astronomer and mathematician. He was professor from 1908
http://www.infoplease.com/ce6/people/A0912498.html
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Aug 31, 2005

5. The Bruce Medalists Willem De Sitter
Willem de Sitter studied at the University of Groningen and spent most of his career at the University of Leiden, where he directed and expanded
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6. Sitter, Willem De
Sitter, Willem De. Make Question.com your homepage Can't find what you want? Ask your question here. Home Internet Forum Medical Automotive
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7. Willem De Sitter
Willem de sitter willem de Sitter (May 6 1872 November 20 1934) was a mathematician, physicist and astronomer.
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8. MSN Encarta - Sitter, Willem De
Interactive Atlas. Magazine Center. Find more about Sitter, Willem de from Related Items Other Features from Encarta. Cosmology. Big Bang
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9. Encyclopedia Of Astronomy And Astrophysics De Sitter, Willem
de Sitter, Willem (18721934) DOI 10.1888/0333750888/4008. Published. November 2000. Full text (PDF, 22K)
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10. De Sitter, Willem
More on De Sitter, Willem from Fact Monster Sitter, Willem de Sitter, Willem de , 1872-1934, Dutch astronomer and mathematician.
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11. De Sitter, Willem
More on de sitter willem from Fact Monster. Willem de Sitter Sitter, Willemde , 1872–1934, Dutch astronomer and mathematician.
http://www.factmonster.com/ce6/people/A0912498.html

12. De Sitter Willem
Translate this page de sitter willem. De Sitter , Willem (1872-1934). Mathématicien, physicienet astronome néerlandais. Ses travaux ont permis aux astronomes de se
http://nabla1.chez.tiscali.fr/sitter.htm
De Sitter , Willem (1872-1934) Mathématicien, physicien et astronome néerlandais.
Ses travaux ont permis aux astronomes de se familiariser avec la théorie de la relativité élaborée par Einstein

13. Willem De Sitter
Willem de Sitter (18721934), a Dutch astronomer, mathematician and physicist,worked energetically across a wide number of fields, earning the respect of
http://spaceinfo.jaxa.jp/note/kagaku/e/kag115_desitter_e.html
Willem de Sitter
Highly respected Dutch astronomer
Willem de Sitter (1872-1934), a Dutch astronomer, mathematician and physicist, worked energetically across a wide number of fields, earning the respect of many theorists. De Sitter, who was interested in astronomy from his high school years, traveled to the royal observatory in Cape Town, South Africa, to study for his doctorate, which he received upon his return to the Netherlands in 1901. De Sitter became a professor of astronomy at Leiden University in 1908 and was appointed to head the university's observatory 11 years later.
De Sitter's theory contributed to modern space theories
When Albert Einstein published his special theory of relativity in 1905, few astronomers realized how much the idea would affect their field. In 1911, de Sitter published a simple theory based on the assumption that if Einstein's theory of relativity applied to astronomical bodies, all observations made according to Isaac Newton's theories would be drastically changed.
After Einstein published his general theory of relativity in 1915, de Sitter responded with a series of papers, one of which included what became known as "de Sitter's Space," which stood in contrast to "Einstein's Space," a theory about space written by Einstein.

14. MSN Encarta - Résultats De La Recherche - De Sitter Willem
Sitter Willem . Articles MSN EncartaPremium. Obtenez plus de résultats pour de sitter willem
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15. Researcher - De Sitter
Willem de Sitter (18721934). In Short. Born Sneek, The Netherlands Researcher in Leiden 1919-1934 Today in Leiden Leiden Observatory. De Sitter
http://research.leidenuniv.nl/index.php3?m=36&c=64

16. Willem De Sitter
Willem de Sitter biografia, zdjecia, literatura, linki do innych witryn.
http://kopernik.pl/index.php?id=1&kod=49

17. Sitter
Biography of willem de sitter (18721934) willem de sitter studied mathematicsat Groningen and then joined the Groningen astronomical laboratory.
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Sitter.html
Willem de Sitter
Born: 6 May 1872 in Sneek, Netherlands
Died: 20 Nov 1934 in Leiden, Netherlands
Click the picture above
to see three larger pictures Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index
Version for printing Willem De Sitter studied mathematics at Groningen and then joined the Groningen astronomical laboratory. He worked at the Cape Observatory in South Africa (1897-99) then, in 1908, de Sitter was appointed to the chair of astronomy at Leiden. From 1919 he was director of the Leiden Observatory. In 1913 de Sitter produced an argument based on observations of double star systems which proved that the velocity of light was independent of the velocity of the source. It put to rest attempts which had been made up until this time to find emission theories of light which depended on the velocity of the source but were not in conflict with experimental evidence. De Sitter corresponded with Ehrenfest in 1916, and he proposed that a four- dimensional space- time would fit in with cosmological models based on general relativity. He published a series of papers (1916-17) on the astronomical consequences of Einstein 's general theory of relativity. He found solutions to

18. The Bruce Medalists: Willem De Sitter
biographies and portraits of prizewinning astronomers of the 19th and 20th centuries.
http://www.phys-astro.sonoma.edu/BruceMedalists/deSitter/
The Bruce Medalists Photo courtesy Yerkes Observatory, University of Chicago Willem de Sitter 6 May 1872 1931 Bruce Medalist 19 November 1934 Willem de Sitter studied at the University of Groningen and spent most of his career at the University of Leiden , where he directed and expanded the astronomy program. He also observed briefly with David Gill at the Cape of Good Hope, and he later stationed a Leiden astronomer in South Africa. He worked extensively on the motions of the satellites of Jupiter, determining their masses and orbits from decades of observations. He redetermined the fundamental constants of astronomy and determined the variation of the rotation of the earth. He also performed statistical studies of the distribution and motions of stars, but today he is best known for his contributions to cosmology. His 1917 solution to Albert Einstein's field equations showed that a near-empty universe would expand. Later, he and Einstein found an expanding universe solution without space curvature. Presentation of Bruce medal
Meyer, W.F.

19. Willem De Sitter Bibliography
de sitter, willem, Short History of the Observatory of the University at Leiden, de sitter, willem, “Proposal for a New Method of determining the
http://www.phys-astro.sonoma.edu/BruceMedalists/deSitter/deSitterRefs.html
Willem de Sitter Bibliography Papers, etc. Leiden Observatory . There is much correspondence with de Sitter in the Albert Einstein papers Other References: Historical Berger, A., ed., Louvainla-Neuve, Belgium, 10-13 October 1983 (D. Reidel Pub. Co., Sold and distributed in the U.S.A. and Canada by Kluwer Academic Publishers, 1984). Bertotti, B., et al, eds., Modern Cosmology in Retrospect (Cambridge Univ. Press, Cambridge, UK, 1990). de Sitter, Willem, Short History of the Observatory of the University at Leiden, 1633-1933 ed. by P. C. van der Kruit and K. van Berkel (Kluwer Academic Publishers, Dordrecht, 2000), p. 79 - 108 [ abstract Einstein and the History of General Relativity, Godart, Odon and M. Heller, (Pachart Pub. House, Tucson, c1985). Isis Human Implications of Scientific Advance , Eric Gray Forbes, ed., Proceedings of the 15th International Congress of the History of Science in Edinburgh 10-15 Aug 1977 (Edinburgh U.P., Edinburgh, 1978), p. 567-75. Human Implications of Scientific Advance , Eric Gray Forbes, ed., Proceedings of the 15th International Congress of the History of Science in Edinburgh 10-15 Aug 1977 (Edinburgh U.P., Edinburgh, 1978), p. 541-43. Nature Einstein and the History of General Relativity

20. Willem De Sitter
sitter, willem de (The Columbia Encyclopedia, Sixth Edition) de sitter,willem (18721934) (The Hutchinson Dictionary of Scientific Biography)
http://www.infoplease.com/ce6/people/A0845418.html
var zflag_nid="162"; var zflag_cid="57/1"; var zflag_sid="53"; var zflag_width="728"; var zflag_height="90"; var zflag_sz="14"; in All Infoplease Almanacs Biographies Dictionary Encyclopedia
Daily Almanac for
Aug 31, 2005

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