61. Emilio Segrè Visual Archives Hansen, William Webster Hanson, William Burt Harper, James Harrison, George RussellHarrison, T. Mark Hart, Stanley hartree, douglas Rayner Hasselmann, Klaus http://www.aip.org/history/esva/esva-list.htm

AIP HOME PAGE Online Journal Publishing Service AIP Journals Publishing Services Science Policy History Center Working at AIP Site Index Search Collection Fees Use Policies How to Order ... Search the Photo Collection List of names in our Photo Collection: Aardal, Albert Abbe, Cleveland Abbe, Ernst Abbot, Charles Greeley Abell, George Ogden Abelson, Philip Hague Abernathy, Cammy Abrams, Richard Abrikosov, A. A. Abt, Helmut Acheson, Marcus Alexander Ackerhalt, Jay Richard Acrivos, Andreas Adair, Robert Kemp Adams, Elliot Quincy Adams, Edwin Plimpton Adams, Gail Adams, John Bertram Adams, John Couch Adams, Leason Heberling Adams, Walter Sidney Adel, Arthur Adelson, Edward H. Adler, Felix Adman, Elinor Thomson Ado, Yurii Michailovich Agnew, Harold Melvin Agnew, Lewis Aharonov, Yakir

62. Computer Laws (?Robert Heinlein). hartree's Law Whatever the state of a project, the time aprojectleader will estimate for completition is constant. (douglas hartree). http://www.sysprog.net/quotlaws.html

SITE SERVICES Contact Us Search Site Map MORE QUOTES Main page What they said Computer laws Asia ... Quotations Computer laws DON'T PANIC! The Hitchhiker's Guide to the Galaxy (cover) Amdahl's Law: The speed-up achievable on a parallel computer can be significantly limited by the existence of a small fraction of inherently sequential code which cannot be parallelised. (Gene Amdahl) Brooks' Law: Adding manpower to a late software project makes it later. (Frederick P Brooks Jr) Church-Turing Thesis: Every function which would naturally be regarded as computable can be computed by the universal Turing machine. Clarke's First Law: When a distinguished but elderly scientist states that something is possible he is almost certainly right. When he states that something is impossible, he is very probably wrong. (Arthur C Clarke) Clarke's Second Law: The only way of discovering the limits of the possible is to venture a little way past them into the impossible. (Arthur C Clarke) Clarke's Third Law: Any sufficiently advanced technology is indistinguishable from magic. (Arthur C Clarke) Conway's Law: If you have four groups working on a compiler, you'll get a 4-pass compiler. (Melvin Conway)

63. Compare Prices On Calculators Books - PriceGrabber.com - Comparison Shopping Bey Their Impact on Mathematical Physics Calculating Instruments Machines.Introduction by Maurice Wilkes. Author douglas hartree. http://www.pricegrabber.com/search_attrib_books.php/bkcat2=396

Popular Books Merchant Reviews Home Books ... Computers Calculators All Products Computers Software Electronics Video Games Movies Music Books Toys Office Calculators Results 1 - 25 of 104 Sorted by Title Resort Results > Title Popularity Algebra and Trigonometry Subtitle: A Graphing Approach Author: Dale Varberg Thomas D. Varberg Antique Office Machines Subtitle: 600 Years of Calculating Devices Author: Thomas A. Russo AP Calculus with the TI-82 Graphics Calculator Author: George W. Best Sally Fischbeck Applied Calculus Business and Social Natural Sciences Edited by: Pullins Author: Chester Plascik Applied Mathematics, Unit A Subtitle: Getting to Know Your Calculator Author: Applied Mathematics, Unit C Subtitle: Finding Answers with Your Calculator Author: Basic Business Math and Electronic Calculators (3 Editions Available) Author: Ronald Merchant Basic College Mathematics Subtitle: A Calculator Approach Author: Peter F. Ash Edward E. Robinson Brief Calculus Subtitle: A Graphing Calculator Approach Author: Ruric E. Wheeler Cerla Neal Roseanne Hofmann Business Computations Author: Kathleen Harcharik Moses A. Armijo

64. Maurice V. Wilkes - The MIT Press Machines Recent and Prospective Developments and Their Impact on Mathematical Physics,and Calculating Instruments and Machines douglas hartree Cloth / October http://mitpress.mit.edu/catalog/author/default.asp?sid=AC1DC5F6-A10E-4AEC-AE63-B

65. MOLECULAR MODELING This was developed in the 1930s by douglas hartree, a British mathematician andVladimir Fock, a Russian physicist, but was not widely used until digital http://web.centre.edu/muzyka/che131/lab/MolecularModeling.htm

MOLECULAR MODELING Chemists frequently use models to better understand chemical phenomena. In this laboratory models are used to analyze chemical bonding and molecular structure. We will start with the Lewis electron dot (Localized Electron) model and use it to predict the electronic structure of some simple molecules. We will then use ball-and-stick models to construct three-dimensional models of those molecules. The three-dimensional models will be refined using Gillespie’s Valence State Electron Pair Repulsion (VSEPR) model . Finally, we will use Spartan , a computational chemistry program, to calculate the molecular geometry. The results from Spartan will then be compared with the VSEPR results. Computational chemistry – In theory, all of chemistry can be understood as solutions of Schrödinger’s wave equation. In practice, solution of the Schrödinger equation is so complicated that chemically accurate calculations for molecules involving more than three electrons and three nuclei, e.g. H , are beyond the reach of current computer hardware/algorithms. To model the properties of larger (and more interesting) molecules, chemists must use some form of approximate computational method.

66. Records For Numerical Calculations. (in MARION) hartree, douglas R. (douglas Rayner), 18971958. The calculationof atomic structures. New York, J. Wiley, 1957. LOCATION MAIN http://vax.vmi.edu/MARION/@NUMERICAL CALCULATIONS/70c620001000/0

67. The Calculation Of Atomic Structures. (in MARION) The calculation of atomic structures. Title The calculation of atomicstructures. Author hartree, douglas R. (douglas Rayner), 18971958. http://vax.vmi.edu/MARION/AAC-4277

68. AIM25: Thesaurus Personal Names: H hartree douglas Rayner 18971958 physicist. Hartshorn Sarah Thomas Sarah d 1867 née Hartshorn wife of the missionary John Thomas. http://www.aim25.ac.uk/search/thesaurus/persons/list7.htm

Personal names index: H A B C D ... Z Johannes De Sacro Bosco John of Holywood John of Halifax Henry of Frimaria The Schoole of Skil Johannes De Sacro Bosco John of Holywood John of Halifax Honorius of Autun Quintus Horatius Flaccus Hrabanus Magnentius Rabanus Maurus Xiong Foxi A B C D ... Z

69. Theoretische Chemie In Erlangen - Bernd Hess - Periodische Strukturen - Bernd He Translate this page zwei- und dreidimensionale periodische Strukturen im Rahmen der hartree-Fock Theorie Kristallen)entwickelt, das auf Methoden der douglas-Kroll-Transformation http://www.chemie.uni-erlangen.de/hess/html/inst97/perio_ger.html

Periodische Strukturen Publikationen zu diesem Thema ab-initio- Rechenmethoden f"ur zwei- und dreidimensionale periodische Strukturen im Rahmen der Hartree-Fock Theorie beschäftigt. Aufbauend auf dem Programm CRYSTAL88 der Turiner Arbeitsgruppe hat Norbert Geipel ein Programm zur Berechnung von relativistischen Effekten in periodischen Strukturen (Kristallen) entwickelt, das auf Methoden der Douglas-Kroll-Transformation aufbaut [N. J. M. Geipel und B. A. Heß, Chem. Phys. Lett. 273 (1997) 62-70]. k k k Bernd Hess

70. Theoretical Chemistry At Erlangen - Bernd Hess - Report 1994 Translate this page Bochum Die Berücksichtigung relativistischer Effekte in periodischen hartree-Fock-Rechnungen. couplingin the framework of the douglas-Kroll transformation. http://www.chemie.uni-erlangen.de/hess/html/inst94/inst94_eng.html

Chair of Theoretical Chemistry - Research Report 1994 Projects 2. Group members 1.1 - 31.12.1994 Graduate Student PhD students Norbert Geipel Matthias Gleichmann Peter Reinhardt Postdoc Dr. Stephan Hutter (until 31. 12. 1994) Guest 3. Diploma and PhD Theses finished in 1994 S. Hutter Doktorarbeit, Mai 1994 4. Funding Project Deutsche Forschungsgemeinschaft (DFG) He 1553/14 ,, Verallgemeinerte gemittelte Felder`` ,, Theoretische Charakterisierung von schwach wechselwirkenden Systemen`` Funding by the Herbert-Quandt-Foundation of the Varta AG Funding by the Fonds der chemischen Industrie Funding by the European Science Foundation (Programm ``Relativistic Effects in Heavy-Element Chemistry and Physics'') 5. Contributed and Invited Talks N. Geipel N. Geipel N. Geipel Relativistische Effekte in Silberhalogeniden und in metallischem Silber N. Geipel Relativistic Effects in Solids Ab initio calculations on transition metal compounds 25.3.1994 Como, COST brainstorming seminar Relativistic ab initio calculations on molecules 7.5.1994 Toulouse, Workshop on Pseudopotentials der European Science Foundation

71. Books By Douglas Hartree Similar pages Unibibliothek Weimar ZB Informatik / Mathe Ausleihe - Translate this page hartree, douglas R. Calculating machines recent and prospective developmentsand their impact on mathematical physics Hc 0060/46. http://www.allbookstores.com/browse/Author/Hartree, Douglas

Search By: Keyword Title Author ISBN Browse: Choose a subject: Art Children's Books Christian Books History Gardening Horror Mystery Oprah Book Club® Photography Reference Romance Science Science Fiction Sports Technology Travel Art Children's Books Christian Books History ... Store Directory Books by Douglas Hartree 1 title (showing 1-1) by Douglas Hartree Maurice Wilkes (Introduction by) Hardcover - October 1984 List price: $35.00 See All Titles Search By: Keyword Title Author ISBN Browse: Choose a subject: Art Children's Books Christian Books History Gardening Horror Mystery Oprah Book Club® Photography Reference Romance Science Science Fiction Sports Technology Travel About Us Affiliate Program Contact Us Help ... Webmasters

72. Tutorial Restricted closedshell hartree-Fock energy and wave function, relativistic Mass-Velocity-Darwin(MVD) correction. Au 77+. Relativistic douglas-Kroll Self http://www.mpa-garching.mpg.de/~opmolsrv/OpenMol/Documentation/Tutorial/

Tutorial Overview The Walk-Through Calculations serve to quickly guide a user through the OpenMol package. We present here sample calculations on simple systems and explain step by step what to do to compute desired property of a system under study. We hope this 'practical guide' will permit a user which is not famillar with OpenMol to use it without having to go through all the detailed documentation. Whenever it is necessary, we give links to parts of the documentation which describe things in more detail. This should permit a user to modify our examples and set up his own calculations. Contents Method Calculated Properties Example(s) Configuration Interaction Restricted closed-shell Hartree-Fock energy and wave function, Configuration Interaction energies and wave function, electron density, dipole moment. H O HeH Coupled Cluster Restricted closed-shell Hartree-Fock energy and wave function, Coupled Cluster energies. H O Self Consistent Field, Mass-Velocity-Darwin Correction Restricted closed-shell Hartree-Fock energy and wave function, relativistic Mass-Velocity-Darwin (MVD) correction. Au Relativistic Douglas-Kroll Self Consistent Field Relativistic Douglas-Kroll Self Consistent Field energy and wave function.

73. Differential Analysers - Meccano Related References Letters to the editor by Justin hartree (grandson of douglas hartree) and GarryTee discussing Meccano Differential Analysers, including a picture of part of http://users.actcom.co.il/~anthias/dabibliographyweb.htm

Differential Analyser Meccano Related Bibliograpy Meccano related references. Compiled by William Irwin, 27th June 2001 Article/Book Author Journal/Publication Brief Description Meccano Aids Scientific Research Editorial Meccano Magazine, June 1934, p 441 An introduction to the Bush and Hartree Differential Analysers, plus a picture of Dr. Bush. Machine Solves Mathematical Problems Anonymous Meccano Magazine, June 1934, p 442 Describes the large scale Differential Analyser built by Dr. V Bush at MIT, as well as the Meccano Model Differential Analyser no. 1 built by Hartree and Porter at Manchester University. Includes pictures of both machines. The Construction and Operation of a Model Differential Analyser D R Hartree and A Porter Describes a model Differential Analyser constructed mostly of standard Meccano parts, based on the large scale machine developed by Dr. V Bush at MIT. This became known as the Meccano Differential Analyser No. 1. Includes pictures. The Design of a Small Differential Analyser Proceedings of the Cambridge Philosophical Society v35, 1939, p 485

74. Development And Test Of Spin-Free Relativistic AIMPs For The Transition Metal El and MeanField Up No-Pair douglas-Kroll ab initio Previous No-Pair douglas-Krollab oxides VO, NbO, TaO, NiO, PdO, and PtO, both at the hartree-Fock level http://www.thch.uni-bonn.de/tc/groups/marian/bericht99/node14.html

Next: The AIMP and Mean-Field Up: No-Pair Douglas-Kroll ab initio Previous: No-Pair Douglas-Kroll ab initio Development and Test of Spin-Free Relativistic AIMPs for the Transition Metal Elements Sc to Hg In this work, we have complemented our previous study on relativistic no-pair ab initio model potentials and valence basis sets for the transition elements Sc - Hg. AIMPs and valence basis sets corresponding to valence spaces comprising the n s,( n - 1 )d, ( n - 1 )p, and ( n - 1 )s shells have been provided. The performance of the model potentials has been tested extensively in calculations on the diatomic oxides VO, NbO, TaO, NiO, PdO, and PtO, both at the Hartree-Fock level and when electron correlation is included by means of coupled-pair functional methods. Further we investigated the requirements on valence and intermediate basis sets used to represent the exchange and no-pair operators. Atomic properties obtained from AIMP Hartree-Fock calculations exhibit very good agreement with corresponding all-electron values. Excellent agreement between AIMP and all-electron results has been obtained at the Hartree-Fock and the correlated levels for equilibrium distances and vibrational frequencies. As expected, the explicit inclusion of the (n-1) s semi-core into the valence space turned out to be more important for early than for late transition metal (TM) monoxides. Relativistic operators are sufficiently well represented in the valence basis. Augmenting the resolution of the identity for the exchange operator, on the other hand, improves dissociation energies, in particular of early TM monoxides, bringing them into close agreement with the all-electron results. In this case it is possible to reduce the third-row TM f valence basis sets without loss of accuracy which implies considerable savings in computational resources. For the group 5 TM monoxides our results agree very well with experiment while for the group 10 TM monoxides inclusion of additional static and dynamic correlation effects and spin-orbit coupling seems to be indicated.

75. Www.tricknology.org/fun/quotes/humor constant. douglas hartree % Given enough time, 100 monkeys on 100routers could setup a national IP network. KDW2 % scenario http://www.tricknology.org/fun/quotes/humor

76. Research In Applied Mathematics Group, Department Of Mathematics, Univ. Of Manch The Department has been fortunate in being led over the years by significant figuressuch as Edward Milne FRS, douglas hartree FRS, Sydney Goldstein FRS, Sir http://www.ma.man.ac.uk/DeptWeb/Groups/Applied/AppliedResearch.html

People Research Areas Applied/Numerical Analysis Seminars Research Centres Manchester Centre for Nonlinear Dynamics Centre for Large Scale ... Advanced Postgraduate Lectures Other Research Groups Logic Numerical Analysis Pure Statistics ... DEPARTMENT of MATHEMATICS Applied Mathematics Welcome to the Applied Mathematics Group Welcome to the home page of the physical applied mathematic group at the University of Manchester. Together with numerical analysis we form the Applied Mathematics Unit, which is one of the three constituent parts of the Department of Mathematics. The University of Manchester has been a significant force in British applied mathematics, especially in the area of fluid and solid mechanics, since the arrival of Sir Horace Lamb FRS in 1885. The Department has been fortunate in being led over the years by significant figures such as Edward Milne FRS Douglas Hartree FRS Sydney Goldstein FRS Sir James Lighthill FRS , Fritz Ursell FRS and Philip Hall . Indeed, it will be difficult to find a Mathematics Department in the UK which has not employed staff who have worked or studied at Manchester! Currently, David Abrahams is the Head of the Applied Mathematics Unit.

77. Charlotte Froese Fischer There she worked with douglas R. hartree, programming the first Electronic DigitalStored program Automatic Computer (EDSAC) for atomic structure calculations. http://www.vuse.vanderbilt.edu/~cff/cff.html

Charlotte Froese Fischer Research Professor of Computer Science Charlotte Froese Fischer obtained both a B.A. degree, with honors in Mathematics and Chemistry, and an M.A. degree in Applied Mathematics from the University of British Columbia in 1952 and 1954, respectively. She then went to Cambridge University where she obtained a Ph. D. in applied mathematics and computing in 1957. There she worked with Douglas R. Hartree, programming the first Electronic Digital Stored program Automatic Computer (EDSAC) for atomic structure calculations. Dr. Fischer served on the Mathematics faculty of the University of British Columbia from 1957 - 68 where she introduced numerical analysis and computer courses into the curriculum and was instrumental in the formation of the Computer Science Department. She served as Professor of Applied Analysis and Computer Science at the University of Waterloo (1968 - 75), Professor of Computer Science at Pennsylvania State University (1974 - 79). She and her husband, Patrick C, Fischer, came to Vanderbilt University in 1980. Dr. Fischer spent 1963 - 64 at the Harvard College Observatory, extending her research on atomic structure calculations. While at Harvard, she was the first woman scientist to be awarded an Alfred P. Sloan Fellowship. Since then she has become internationally known for her software for atomic structure calculations and her research in atomic structure theory. In 1991 she became a Fellow of the American Physical Society, in part for her contribution to the discovery of negative calcium. In 1995 she was elected a member of the Royal Physiographical Society of Lund.

78. Full Alphabetical Index Translate this page Hankel, Hermann (546*) Hardy, Claude (168) Hardy, GH (2486*) Harish-Chandra (413*)Harriot, Thomas (3306*) Hartley, Brian (466*) hartree, douglas (436*) Hasib http://www.maththinking.com/boat/mathematicians.html

Full Alphabetical Index Click below to go to one of the separate alphabetical indexes A B C D ... XYZ The number of words in the biography is given in brackets. A * indicates that there is a portrait. A Abbe , Ernst (602*) Abel , Niels Henrik (2899*) Abraham bar Hiyya (641) Abraham, Max Abu Kamil Shuja (1012) Abu Jafar Abu'l-Wafa al-Buzjani (1115) Ackermann , Wilhelm (205) Adams, John Couch Adams, J Frank Adelard of Bath (1008) Adler , August (114) Adrain , Robert (79*) Adrianus , Romanus (419) Aepinus , Franz (124) Agnesi , Maria (2018*) Ahlfors , Lars (725*) Ahmed ibn Yusuf (660) Ahmes Aida Yasuaki (696) Aiken , Howard (665*) Airy , George (313*) Aitken , Alec (825*) Ajima , Naonobu (144) Akhiezer , Naum Il'ich (248*) al-Baghdadi , Abu (947) al-Banna , al-Marrakushi (861) al-Battani , Abu Allah (1333*) al-Biruni , Abu Arrayhan (3002*) al-Farisi , Kamal (1102) al-Haitam , Abu Ali (2490*) al-Hasib Abu Kamil (1012) al-Haytham , Abu Ali (2490*) al-Jawhari , al-Abbas (627) al-Jayyani , Abu (892) al-Karaji , Abu (1789) al-Karkhi al-Kashi , Ghiyath (1725*) al-Khazin , Abu (1148) al-Khalili , Shams (677) al-Khayyami , Omar (2140*) al-Khwarizmi , Abu (2847*) al-Khujandi , Abu (713) al-Kindi , Abu (1151) al-Kuhi , Abu (1146) al-Maghribi , Muhyi (602) al-Mahani , Abu (507) al-Marrakushi , ibn al-Banna (861) al-Nasawi , Abu (681) al-Nayrizi , Abu'l (621) al-Qalasadi , Abu'l (1247) al-Quhi , Abu (1146) al-Samarqandi , Shams (202) al-Samawal , Ibn (1569) al-Sijzi , Abu (708) al-Tusi , Nasir (1912) al-Tusi , Sharaf (1138) al-Umawi , Abu (1014) al-Uqlidisi , Abu'l (1028) Albanese , Giacomo (282) Albategnius (al-Battani) (1333*)

79. Inglises Found On Gravestones During A Survey Of Churches Near To Inglises found on gravestones during a survey of Churches near to douglas, Lanarkshire,Scotland da Jean Ingles 11.9.1813 15, s Geo Inglis d hartree 31.10.1880 http://www.inglis.uk.com/inglisgravestonesindouglas.htm

Inglises found on gravestones during a survey of Churches near to Douglas, Lanarkshire, Scotland. Church Grid reference ref # Inscription on Gravestones St Mary's, Biggar (Against wall of church, back difficult to read) John Inglis in Stone 30.5.1816 81 (Back) Isabel da of And Inglis mason 12.8.1725 20 Alex Inglis slater Biggar 14.4.1869 61, w Margt Pairman 28.10.1866 54 chn Marion 29.7.1864 26, John 19.5.1855 20, Margt 27.9.1851 3 1/2; Jas Inglis 31.12.1867 27, w Eliz Parker d Jersey 1.11.1868, da inf, da Marion Parker Inglis 1.11.1881 16; Robt Inglis 24.3.1875 29; Wm Inglis mert Biggar 25.12.1876 31, w Anne Inglis 31.10.1906 64 (Back) Thos Inglis slater Biggar 10.3.1826 63, w Marion Lindsay 28.2.1816 47, of their chn Margt, Mary and Helen inf Margaret Paterson 27.10.1870 80, husband Wm Inglis 22.3.1871 81 Wm Inglis weaver Biggar 25.4.1824 59; Agnes Tod w of Wm Inglis weaver Westrow 10.3.1823 68; this burying ground belongs to Jas Wilson Jas Sinclair 27.2.1797 71, w Grizal Inglis 4.12.1804 76, chn Wm 3.2.1770 7, Marion 16.4.1773 2, Alex 15.3.1794 33 (see notes for Mr Lambie) (Listed by John Smith as near 161, not found in 1972) The burying place of John and Marion Inglis

80. The Bowles History Page British scientists did not construct such a machine until 1933, when theoreticalphysicist douglas Rayneer hartree visited Bush at MIT, copied his plans, and http://w3.gwis.com/~mdb/brain.htm

Title: "U.S. Technological Enthusiasm and British Technological Skepticism in the Age of the Analog Brain." Author: Mark D. Bowles Publication Data: Annals of the History of Computing vol. 18, no. 4, 1996. Abstract This article is a comparative analysis of the British and U.S. differential analyzers from 1930 to 1945. The author examines the development of the Vannevar Bush and D.R. Hartree analyzers in the context of the U.S. engineering community and British scientific community, respectively. He argues that this practical machine was more readily and enthusiastically adopted by U.S. engineers, while British scientists remained septical of the differential analyser due to their theoretical professional style. As a result, Hartree was a "voice in the wilderness" in Britain, while Bush received extensive funding and had the support of an enthusiastic engineering environment. Introduction Kenneth Flamm claimed that the tradition-bound British culture was one of the main reasons why the British were unable to compete successfully against the U.S. computer initiative in the post-World War II era. British culture did not have the same support for risky high-technological ventures as did its U.S. counterpart. Flamm contends that while less visible, this cultural factor was a more important obstable than a lack of funding. While Flamm used this argument for hte post-World War II era, I contend that this cultural factor had implications for the analog machines in the 1930s and 1940s.

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