41. Browse The Turing Digital Archive Paper, 10 sh. in envelope. Keywords ACE (Automatic Computing Engine); hartree,douglas Rayner. Copyright Reproduced with the permission of R. hartree. http://www.turingarchive.org/browse.php/B/2

Browse the Turing Digital Archive The item AMT/B/2 does not exist in the digital archive. Introduction Browse Search Index

42. Index Of The Turing Digital Archive Hardy, Godfrey Harold, D/5; hartree, douglas Rayner, B/2; Hazelhurst, Sussex,K/1; Heisenberg, Werner, B/43; Hodges, Andrew, A/38, A/40, D/11, D/12, http://www.turingarchive.org/index/

Index of the Turing Digital Archive If you can't find what you want in this index, try searching for some key words or phrases or try browsing by category. Introduction Browse Search Index

43. Douglas Rayner Hartree | životopis douglas Rayner hartree slavný fyzik. douglas Rayner hartree se narodil 27.brezna 1897 v Cambridge v Anglii. hartree zacal v roce 1915 studovat na St. http://www.converter.cz/fyzici/hartree.htm

Douglas Rayner Hartree Úvodní strana Fyzici Douglas Rayner Hartree se narodil 27. bøezna 1897 v Cambridge v Anglii. Hartree zaèal v roce 1915 studovat na St. John's College v Cambridge, ale jeho studia pøerušila 1. svìtová válka - podílel se na výzkumech protiletadlových dìl. Studia dokonèil po válce v roce 1921. V roce 1926 pak získal doktorát. V letech 1924 - 1927 byl Hartree èlenem St. John's College a v letech 1928 - 1929 èlenem Christ's College. V roce 1929 byl jmenován profesorem aplikované matematiky na univerzitì v Manchesteru (1929 - 1937). V roce 1937 se stal profesorem teoretické fyziky. Od roku 1946 do své smrti byl profesorem matematické fyziky v Cambridge. Numerické metody Hartree byl pøedevším teoretický fyzik. Vyvinul úèinné metody numerické analýzy. Jeho zájem o numerické metody zaèal pøi práci na protiletadlových zbraních (1916 - 1918). Hartree v roce 1921 navštívil pøednášky, které mìl v Cambridge Niels Bohr . Hartreeho pøednášky zaujaly - zaèal pracovat na využití numerických metod pro výpoèet atomových vlnových funkcí.

44. Hartree-Fock: Information From Answers.com The name is for douglas hartree, who devised the self consistent field method,and VA Fock who demonstrated the rigour of hartree s method, and reformulated http://www.answers.com/topic/hartree-fock

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Hartree-Fock Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); Hartree-Fock In computational physics , the Hartree-Fock calculation scheme is a self-consistent iterative procedure to calculate the so-called "best possible" single determinant solution to the time-independent Schr¶dinger equation of a many-electron system in a Coulombic potential of fixed nuclei. As a consequence to this, whilst it calculates the exchange energy exactly, it does not calculate the effect of electron correlation at all. Because the nuclei are modeled as fixed point charges, it is only applicable after the Born-Oppenheimer approximation has been made. The name is for Douglas Hartree , who devised the self consistent field method, and V. A. Fock who demonstrated the rigour of Hartree's method, and reformulated it into the matrix form used today. The starting point for the Hartree-Fock method is a set of approximate orbitals. For an

45. Hartree Energy: Information From Answers.com hartree energy The hartree energy (symbol Eh ) is a physical constant used asatomic unit of energy , named after physicist douglas hartree. http://www.answers.com/topic/hartree-energy

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Hartree energy Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); Hartree energy The Hartree energy (symbol E h ) is a physical constant used as atomic unit of energy , named after physicist Douglas Hartree It has a value of twice the absolute value of binding energy of the electron in the ground state of the hydrogen atom W ionization energy J eV Ry ... kcal/mol where: is the Planck's constant m e is the electron rest mass a is the Bohr radius This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see Mentioned In Hartree energy is mentioned in the following topics: atomic units Scientific constants named after people M¸ller-Plesset perturbation theory List of physics topics F-L ... Aetherometry Wikipedia information about Hartree energy This article is licensed under the GNU Free Documentation License . It uses material from the Wikipedia article "Hartree energy" More from Wikipedia Your Ad Here Jump to: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Send this page Print this page Link to this page Tell me about: Home About Tell a Friend Buzz ... Site Map

46. Cities Of Science - Greater Manchester - An Ingenious Analogue Computer douglas hartree was a theoretical physicist who developed powerful methods innumerical douglas hartree built a machine to solve differential equations. http://www.citiesofscience.co.uk/go/Manchester/ContentPeople_2809.html

Cities of Science Manchester Home Places People Events ... Back to Cities of Science Switch to: text only Search by postcode or keyword Douglas Hartree The Museum of Science and Industry, Manchester Streetmap Email this article to a friend Print this page Related Articles Science and Industry in Manchester You are in: Portal Home Greater Manchester An ingenious analogue computer Douglas Hartree Douglas Hartree was a theoretical physicist who developed powerful methods in numerical analysis. His initial interest in numerical methods arose from his work on anti-aircraft gunnery in 1916-18. He was professor of Applied Maths and Physics at Manchester University between 1929 and 1945. Douglas Hartree built a machine to solve differential equations. This was before the days of digital computers when machines of this kind worked on analogue principles. The first analyser was created with the help pf Meccano in 1934. The full scale machine was engineered by Metropolitan Vickers and completed in 1935. The photograph shows about half of the original machine. One of its applications was to analyse train running times but it had many other uses. Submitted by: Andrew Hunt, 04 December 2003

47. Virtual Travelog | The Moore School Lectures And The British Lead In Stored Prog hartree, douglas R. University of Manchester. Lehmer, Derrick II. University ofCalifornia, Berkeley. Mauchley, John W. Electronic Control Company http://www.virtualtravelog.net/entries/000047.html

Virtual Travelog http://www.virtualtravelog.net/ Complexity Globalization ... Technology The Moore School Lectures and the British Lead in Stored Program Computer Development (1946 -1953) System Design Technology In 1946 between 8th July and 31st August the Moore School of Electrical Engineering at the University of Pennsylvania held a special course entitled Theory and Techniques for Design of Electronic Digital Computers. The course was organized in response to interest generated by; the schools public announcement of the ENIAC, and the publication of The First Draft of a Report on the EDVAC. 1945 by Jon von Neumann. Attendance was by invitation only and the "Students" were selected from the leading experts at the major institutions working on the development of computing devices in the US and UK. At the time of this event there were only three published designs for a stored program computer and it was expected that all those present were familiar with these documents. The First Draft of a Report on the EDVAC. by Jon von Neumann. 1945 Proposed Electronic Calculator.

48. Douglas Hartree And Early Computations In Quantum Mechanics douglas hartree, who was a mathematical physicist at the University of Manchesterand the University of Cambridge during the first half of this century, http://portal.acm.org/citation.cfm?id=612057

49. Computational Physics: Hartree - Differential Analyzer douglas hartree s Differential Analyzer 1934 hartree built a differentialanalyzer at Manchester with colleagues Phyllis Lockett, David Copeley and http://csep1.phy.ornl.gov/comp-phys/seminar/hartree2.html

Douglas Hartree's Differential Analyzer Early 30's - differential analyzer invented by Vannevar Bush 1934 - Hartree built a differential analyzer at Manchester with colleagues Phyllis Lockett, David Copeley and Oscar Buneman Integrated the Schroedinger equation Solved the Poisson equation with a 24 point discrete Fourier transform (at this point Gauss's original FFT program written in Latin was still undiscovered) Applied algorithm to heat flow and the problem of cooking steel ingots (Phyllis had become Mrs. Nicholson and her assistant was Crank) During WWII - he worked on radar and ballistics problems

50. Science And Society Picture Library - Search This Meccano model was built by douglas hartree (18971958), based on thedifferential analyser built in 1930 by Vannevar Bush at the Massachusetts http://www.scienceandsociety.co.uk/results.asp?image=10302768&wwwflag=2&imagepos

51. Hartree Biography of douglas hartree (18971958) douglas hartree s school educationwas in Cambridge and Petersfield. He entered St John s College Cambridge in http://www.quantum-chemistry-history.com/Har1.htm

Douglas Rayner Hartree Born: 27 March 1897 in Cambridge, Cambridgeshire, England Died: 12 Feb 1958 in Cambridge, Cambridgeshire, England Click the picture above to see a larger version Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Douglas Hartree 's school education was in Cambridge and Petersfield. He entered St John's College Cambridge in 1915 but World War I interrupted his studies and he joined a team studying anti-aircraft gunnery. He returned to Cambridge after the war and graduated in 1921 but, perhaps because of his interrupted studies, he only obtained a Second Class degree in Natural Sciences. However he went on to obtain a doctorate in 1926 and, after being a Fellow of St John's College (1924-27) and Christ's College (1928-29) he was appointed professor of applied mathematics at Manchester. Hartree held this chair from 1929 to 1937 when he moved to the chair of theoretical physics. After undertaking work with the Ministry of Supply during World War II, he was appointed Plummer Professor of Mathematical Physics at Cambridge. He held this post until his death. Hartree was basically a theoretical physicist, and he developed powerful methods in numerical analysis. His initial interest in numerical methods arose from his work on anti-aircraft gunnery in 1916-18. However

52. Quantum Chemistry People - Alphabetical Listing - Component Of : Early Ideas In hartree, douglas R. †, checked. Heisenberg, Werner Karl †, checked Nobel Bio.checked Am.Inst.Phys. Helgaker, Trygve (Oslo, Norway), checked http://www.quantum-chemistry-history.com/Alph_Dat/Main2.htm

Alphabetical Listing of Interesting Names in Quantum Chemistry This page enters into a listing of interesting names in Quantum Chemistry on this web site and elsewhere Choose at left A Last link check : May 9, 2003 Last update : May 9, 2003 Name - Location on this site - click linking elsewhere - click sometimes off-net? Ahlrichs , Karlsruhe, Germany yes B Last link check : May 9, 2003 Last update : May 9, 2003 Name - Location on this site - click linking elsewhere - click Ballhausen, Carl J. (Copenhagen) Berthier, Gaston (Paris) C Last link check : May 9, 2003 Last update : May 9, 2003 Name - Location on this site - click linking elsewhere - click Craig, David P., (Canberra, Austr.) D Last link check : May 9, 2003 Last update : May 9, 2003 Name - Location on this site - click linking elsewhere - click Dahl, Jens Peder (Copenhagen)

53. TCAEP.co.uk Science-Constants-Hartree Energy It is named after douglas hartree (1897 1958), who pioneered numerical analysisand the computation of atomic wavefunctions. http://www.scenta.co.uk/tcaep/nonxml/science/constant/details/Hartree energy.htm

Science Constants Name Hartree energy Symbol E h Value J eV Category General Physical Constants Comments The hartree energy is equal to 2 R hc or twice the energy of an electron in the ground state of a hydrogen atom in the Bohr model. It is named after Douglas Hartree (1897 - 1958), who pioneered numerical analysis and the computation of atomic wavefunctions. References CODATA recommended values of the fundamental physical constants: 1998 , P J Mohr, B N Taylor, Rev. Mod. Phys. 72 (2), 2000 H O M E S C I E N C E M A T H S A S T R O N O M Y ... About Developed By DOMEX E-DATA PVT., LTD.

54. Scholarships - The IEE hartree Premium. Established as a Control and Automation premium in 1966. hartree,douglas Rayner (18971958). Physicist. Worked on numerical analysis and http://www.iee.org/EduCareers/Awards/premiumdetails.cfm

@import "/styles/dropdown.css"; Login or Register Shop Help A-Z ... Home Search: The IEE About the IEE Membership Business Partners ... Contacts Scholarships Premium Awards - Further Information BACKGROUND INFORMATION Ayrton Premium Established after changes to premiums made in 1911, for papers on practical applications of electricity. Ayrton, W E (1847-1908) An outstanding teacher of electrical subjects, often using apparatus he had made himself. Appointed the first Professor of Natural Philosophy and Telegraphy at the Imperial College of Engineering, Tokyo in 1873. He became Professor of Electrical Engineering at Finsbury Technical College in 1879 and in 1884 became Professor of Electrical Engineering at the Central Technical College, eventually becoming Dean in 1904. In Tokyo, Ayrton, with John Perry, worked on dialectic constants of gases; viscosities of dialectics and at Finsbury they invented many electrical measuring instruments, including a spiral-spring ammeter and wattmeter. They also worked on railway electrification and produced a dynometer, and in 1882 the first electric tricycle. He was President of the IEE in 1892. Return to Previous Page Blumlein-Browne-Willans Premium Established in 1954. Awarded annually, for papers on the science and art of television or pulse and wideband techniques.

55. KuenzigBooks.com - Forward To Home Author hartree, douglas R. Title Calculating Instruments and Machines PublisherUrbana The University of Illinois Press, 1949. Hard Cover. http://kuenzigbooks.com/

56. Kuenzig Books - View Item Urbana The University of Illinois Press, 1949. Hard Cover.......Author hartree, douglas R.. Title Calculating Instruments and Machines. http://kuenzigbooks.com/pictureResults.php?pageName=View Item&record=10895&URLPA

57. Biographies Of Scientists douglas Rayner hartree. Born 27 March 1897 in Cambridge, Cambridgeshire, England douglas hartree s school education was in Cambridge and Petersfield. http://www.chm.bris.ac.uk/pt/harvey/elstruct/biogs.html

Molecular Electronic Structure Biographical Details of the Scientists Mentioned in the Course Most of the biographies and pictures on this page were taken from the MacTutor History of Mathematics Archive Walter Kohn Born: 1923 in Vienna, Austria. Walter Kohn received the Nobel prize for Chemistry in 1998, mainly for his many ground-breaking contributions to Density-Functional Theory . You can read about him on the Nobel prize site. John A. Pople Born: 31 October 1925 in Burnham-on-Sea, Somerset. John Kohn received the Nobel prize for Chemistry in 1998, for the tremendous work he has done over the years making computational chemistry into a powerful, flexible method for use by all sorts of chemists. You can read about him on the Nobel prize site. Vladimir Aleksandrovich Fock Born: 22 December 1898 in St Petersburg, Russia. Died: 27 December 1974 in St Petersburg, Russia. Vladimir A.Fock was born on 22 December 1998 in StPeterburg and died in the same town on 27 december 1974. He graduated from StPetersburg (Petrograd) University and, with exception of war and several post war years, his life was associated with St.Peterburg (Leningrad) where he was teaching at the University for more than 40 years. During this time he made fundamental contributions to quantum theory reflected in such notions as Fock space, HartreeFock method and others. Gerhard Herzberg Born: 25 December 1904 in Hamburg, Germany

58. Biographies Of Computer Pioneers A-J hartree, douglas Rayner ; (18971958); Hawking, Stephen;; Hazen, HaroldLocke ; (1901-80); Heisenberg, Werner;; Hell, Rudolf (1901-2002); inventor of fax http://www.thocp.net/biographies/biographies.htm

Biographies Pioneers of computing A-J This index mentions most of the computer pioneers and their inventions, or other important people in computers or computing industry. Due to the length of the index we have cut the index into two parts: [A-J] and [K-Z] you can navigate through both parts via the alfabeth icon (see below) from both pages; they have identical mappings. Sometimes a link will bring you to external sites, use the back button of your browser to come back. If you see in-active or un-linked pages, they are either under revision or will be added in the future. So come back often, or press the what's new hotspot on the main page Recently we have added a list of historic papers as they are referenced via the biographies, readers asked us to insert an index page for easier retrieval: Though we think this list to be fairly complete please if you find omissions A Aiken, Howard A. Harvard Mark I Alkhowarizmi mathematics, , ancient mathematician, the number Allen, Paul

59. Hartree-Fock - Definition Of Hartree-Fock In Encyclopedia In computational physics, the hartreeFock calculation scheme is a The nameis for douglas hartree, who devised the self consistant field method, http://encyclopedia.laborlawtalk.com/Hartree-Fock

Add to Favorites General Encyclopedia Legal ... Law forum Search Word: Visit our Law forums Labor Law Accidents Law Bankruptcy Law Business Law ... Tax Law In computational physics , the Hartree-Fock calculation scheme is a self-consistent iterative procedure to calculate the so-called "best possible" single determinant solution to the time-independent Schrödinger equation of a many-electron system in a Coulombic potential of fixed nuclei. As a consequence to this, whilst it calculates the exchange energy exactly, it does not calculate the effect of electron correlation at all. Because the nuclei are modeled as fixed point charges, it is only applicable after the Born-Oppenheimer approximation has been made. The name is for Douglas Hartree , who devised the self consistant field method, and V. A. Fock who demonstrated the rigour of Hartree's method, and reformulated it into the matrix form used today. The starting point for the Hartree-Fock method is a set of approximate orbitals. For an atomic calculation, these are typically the orbitals for a hydrogenic atom (an atom with only one electron, but the appropriate nuclear charge). For a molecular or crystalline calculation, the initial approximate wavefunctions are typically a linear combination of atomic orbitals. This gives a collection of one electron orbitials that, due to the

60. UNM Physics And Astronomy Department Web Site hartree, douglas R. (douglas Rayner), The Calculation of Atomic Structures, In,SM 1811. Hartung, EJ (Ernst Johannes), Astronomical objects for southern http://panda.unm.edu/library/index.php?sort_by=author&letter=h

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 3     41-60 of 102    Back | 1  | 2  | 3  | 4  | 5  | 6  | Next 20