Extractions: Notizie approfondite sulla vita corredate da una collezione di immagini Ludgate, Percy E. (1883-1922) Lullo, Raimondo Mauchly, John William McCarthy, John Metropolis, Nicholas C. (1915- ) Minsky, Marvin Lee Moore, Gordon E. Morland, Samuel Nepero, Giovanni ... Noyce, Robert Norton Ocagne, Maurice d' (1862-1938) Odhner, Willgodt Theophil
Doug Coward's Analog Computer Museum (NAVPERS 92699A) Calculating Instruments and Machines hartree,douglas R. Cambridgeat the University Press 1950 Lectures given by douglas hartree at the http://dcoward.best.vwh.net/analog/readlist.htm
Extractions: During the 40's, 50's and 60's electronic analog computers were used to simulate the characteristics of a new aircraft, missle, or rocket designs. Because of their true parallel computing nature, speed, small size, and ease of programming, they beat digitial computers hands down in these kinds of tasks. In the mid 60's a new class of computer took over these jobs, the hybrid (combination analog / digital) computer. Basics of Analog Computers Truitt,T.D. and Rogers,A.E. John F. Rider Publisher Inc. 1960 A Palimpsest on the Electronic Analog Art Paynter,H.M. George A. Philbrick Researches,Inc. 1955 "Collection of reprints of papers and other writings" about analog computers from the early 1950's.
Hartree http//www.man.ac.uk/Science_Engineering/CHSTM/contents/har.htm douglasRayner hartree. Professor douglas R. hartree (18971958) was http://indykfi.atomki.hu/indyKFI/MT/hartree.htm
Extractions: Professor Douglas R. Hartree (1897-1958) was one of the most influential mathematicians and computer pioneers of his day, whose work bridged both the calculating machine and electronic digital eras. As Beyer Professor of Applied Mathematics at Manchester University in the mid 1930s, Hartree built a differential analyzer based upon the machine of the American, Vannevar Bush. Hartree's international reputation ensured that he kept in close touch with American developments, and during the Second World War he became involved with the ENIAC project. On his return to England (where he had accepted a chair at Cambridge University) Hartree publicised American activities and was an enthusiastic supporter of British efforts to build stored program computers. References : M.V. Wilkes' introduction to Hartree, Calculating Machines etc. (Cambridge, Mass.; MIT Press, 1984). A small number of Hartree papers are deposited in the Archives of Churchill College, Cambridge. See listing by Contemporary Scientific Archives Centre (CSAC 45/9/76). Copy in NAHC. The collection comprises one box of archival material.
The Priorities Committee Characters Wilkes Mike Woollett Mutch Sid Barton Miller Peter Chamberlain GillDonald willis douglas Gordon Stevens hartree Ken Machin Cleaner Margaret http://www.cl.cam.ac.uk/Relics/priorities.html
Stephen Wolfram: A New Kind Of Science -- Relevant Books ISBN 0898710278 . hartree, douglas R. Calculating Instruments and MachinesUniversity of Illinois, 1949. hartree, douglas R. Numerical Analysis 1952. http://www.wolframscience.com/reference/books/h.html
Technical Units Named After People gilbert, , William Gilbert, electromotive force, 10/4p A·turns. gray, Gy, LH Gray,radiation dose, J/kg. hartree, -, douglas Rayner hartree, energy, approximately 27.21eV. http://www.geocities.com/maineiac_bibliophage/people.html
Extractions: unit symbol person quantity measured value ampere A André-Marie Ampère electric current C/s angstrom Anders Jonas Ångström length 10e-10 m baud Jean-Maurice-Émile Baudot signal transmission speed 1 unit per second becquerel Bq Antoine-Henri Becquerel disintigration rate one disintigration per second bel B Alexander Graham Bell power comparison dimensionless biot Bi Jean Baptiste Biot electric current 10 A blondel André-Eugène Blondel luminence p cd·m Bohr magneton Niels Henrik David Bohr magnetic moment eh/4 p m e brewster B Sir David Brewster stress-optical coefficient m /N Bubnoff unit Bubnoff speed 10e-6 m/year clausius Cl Rudolf Julius Emanuel Clausius entropy cal/K coulomb C Charles-Augustin de Coulomb electric charge A·s curie Ci Marie and Pierre Curie disintigrtion rate 3.7e10 Bq dalton John Dalton mass 1/16 the mass of an oxygen-16 atom darwin Charles Darwin evolutionary change debey D Peter Joseph Wilhelm Debey electric dipole moment (10e-19/c) C·m einstein E Albert Einstein quanity of light one mole of photons Eotvos unit E Roland, Baron von Eötvös gradient of acceleration 10e-9 s erlang r Agner Krarup Erlang communications traffic intensity farad F Michael Faraday electric capacitance A·s/V faraday Fd Michael Faraday electric charge the charge of a mole of electrons fermi fm Enrico Fermi length 10e-15 m franklin Fr Benjamin Franklin electric charge 3.33564e-10 C
Full Alphabetical Index Translate this page Hankel, Hermann (94*) Hardy, Godfrey H (421) Hardy, Claude (421) Harish-Chandra (413*)Harriot, Thomas (498) Hartley, Brian (466*) hartree, douglas (436*) Hasse http://www.geocities.com/Heartland/Plains/4142/matematici.html
Computer-Pioneers-Contents Hammer, Carl. Hamming, Richard Wesley. Harrington, John V. hartree, douglas.Hazen, Harold Locke. Henle, Robert A. Hestenes, Magnus R. Hewlett, William. http://www.fitzroydearborn.com/Contents/CmpuPiCs.htm
Extractions: International Biographical Dictionary of Computer Pioneers Contents Introduction Adams, Jeanne Clare Aiken, Howard Hathaway Alexander, Samuel N. Al-Khowarizmi, Mukhammad ibn Musa Amdahl, Gene M. Andrews, Ernest Galen Astrahan, Morton Michael Atanasoff, John Vincent Atchison, William Auerbach, Isaac L. Babbage, Charles Bachman, Charles Backus, John Warner Baker, Charles L. Bardeen,John Barr, Joel Bauer, Friedrich L. Bech, Niels Ivar Belady, Laszlo A. Bell, Chester Gordon Bell, Gwen Bemer, Robert W. Berkeley, Edmund C. Berry, Clifford Edward Billing, Heinz Birkenstock, James Birkhoff, Garrett Bloch, Erich Boole, George Booth, Andrew Donald Booth, Taylor L. Bowden, Bertram Vivian Bradshaw, Charles L. Brainerd, John Grist Bright, Herbert S. Bromberg, Howard Brooker, Ralph Anthony Brooks, Frederick P., Jr. Brown, George H. Brown, Gordon S. Buie, James L. Burks, Alice R. Burks, Arthur Walter Bush, Vannevar E. Bushnell, Nolan Carlson, Walter M. Carr, John Weber III Chandler, W.W.
Historic Books Panorama Xel Technical report, Doran collection. hartree, douglas R. Calculating Instrumentsand Machines. University of Illinois Press. Summary of state of the art. http://www.cs.auckland.ac.nz/~bob/Old Books for Web/Historicbooks1.html
I2670: Margot May DAVIES (2 Mar 1959 - ____) _Bernice Jean douglas _ _Louisa Emmeretta MINCHAM _+ INDEX. HTML created by GED2HTMLv3.5eWIN95 (Sep 26 1998) on 12/22/01 040251 . Samantha Jane hartree. http://members.fortunecity.com/icypole/d0003/g0000041.html
Hartree Energy - A Whatis Definition The constant gets its name from the 20thcentury physicist douglas hartree.It is sometimes used as an energy unit in theoretical physics. http://www.whatis.com/definition/0,,sid9_gci869619,00.html
Extractions: Search our IT-specific encyclopedia for: or jump to a topic: Choose a topic... CIO CRM Databases Domino Enterprise Linux IBM S/390 IBM AS/400 Networking SAP Security Solaris Storage Systems Management Visual Basic Web Services Windows 2000 Windows Manageability Advanced Search Browse alphabetically: The Hartree energy is a physical constant equal to twice the binding energy of the electron in the ground state (the lowest-energy state) of the hydrogen atom . When a hydrogen atom is in this state, an amount of energy equal to 0.5 Hartree is necessary to free the electron and thereby cause the atom to become an ion The value of the Hartree energy is approximately 4.36 x 10 joule (J), or 27.2 electronvolts (eV). The constant gets its name from the 20th-century physicist Douglas Hartree. It is sometimes used as an energy unit in theoretical physics. Also see Table of Physical Constants
Computational Physics: Hartree - Differential Analyzer douglas hartree's Differential Analyzer. Early 30's differential analyzerinvented by Vannevar Bush; 1934 - hartree built a differential http://csep1.phy.ornl.gov/comp-phys/seminar/hartree2.html
Extractions: 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
Guide To The Records Of CSIRAC - Series 1 - CSIRAC - ESTABLISHMENT 1/1 douglas hartree. This file contains letters to Professor Thomas Cherry,Head of the Department of Mathematics, from douglas hartree and EN Mutch. http://www.asap.unimelb.edu.au/pubs/guides/csirac/data/csir_s1.htm
Extractions: Hartree's letter is apparently in response to inquiries made by Cherry regarding the finding of a permanent home for the CSIRO computer. The letter contains Hartree's advice on organisational and staffing arrangements based on his experience at the Cavendish Laboratory. Hartree also provides, at Cherry's request, his opinion of Pearcey. Mutch's letter details the operating and maintenance needs of a large computer, such as the one at Cambridge, and the staffing needed for these purposes. File contents includes: correspondence. Computer Centre Project Proposal This file contains a copy of a letter to the Vice-Chancellor of the University of Melbourne, from Thomas Cherry, outlining the estimated costs of the 'Computing Centre Project', in particular the CSIRAC computer. The letter makes reference to the CSIRO offer of an indefinite loan of the computer, the likely uses which could be made of it, probable staff positions and salary estimates, installation costs and the possibility of gaining grants from the Aeronautical Research Laboratories and the Department of Supply.
Encyclopædia Britannica business organizations. hartree, douglas R(ayner) (18971958) Englishphysicist, mathematician, and computer pioneer. Brown, Capability http://search.britannica.com/search?query=scheme&ct=gen1&fuzzy=N
NCUACS Homepage Bodleian Library, Oxford. hartree, douglas Rayner (18971958) CSAC no. 45/9/76,4pp. Mathematics. Christ's College, Cambridge. HEATLEY, Norman George (b.1911). http://www.bath.ac.uk/ncuacs/catlist2.htm
Extractions: Summary list of CSAC and NCUACS catalogues: arranged alphabetically The list gives the scientist's name and dates, followed by the catalogue number and number of pages, the subject area, and the place of deposit. Copies of NCUACS catalogues may be purchased from the Unit, and terms are available on request A-B C, D E-G ... W-Z Last updated 20 December 2002. T.E.Powell@bath.ac.uk The list gives the scientist's name, dates and subject area, followed by the catalogue number and number of pages, and the place of deposit. ABRAHAM, Sir Edward Penley (1913-1999), biochemist. NCUACS no. 103/2/02, 233 pp., Bodleian Library, Oxford ADAMS, John Frank (1930-1989), mathematician. NCUACS no. 26/2/91, 119pp and NCUACS no. 34/2/92, 40pp. . Trinity College, Cambridge APPLETON, Sir Edward Victor (1892-1965), ionospheric physics CSAC no. 82/6/81, 172pp. Edinburgh University Library ARKELL, William Joscelyn (1904-1958), geologist. NCUACS no. 102/1/02, 156 pp., Library, Oxford University
Guide H hartree, douglas Rayner (18971958) CSAC no. 45/9/76, 4pp. Mathematics. Christ'sCollege, Cambridge. hartree, douglas Rayner, 1897-1958. Mathematician. http://www.bath.ac.uk/ncuacs/guideh.htm
Extractions: collections will be available for research. There are restrictions on access to items in a number of the collections and researchers should always consult the appropriate repository before planning a visit. New Most of the catalogues compiled by the Unit can now be viewed online through the Access to Archives website at the Public Record Office. Direct links to the catalogues are being (gradually) added from this Guide To view the full-text catalogue, please click on the link under Finding Aid Note, some catalogues are very extensive and may take a few moments to download. An indication of the size of the file is provided. HANSON , Emmeline Jean (1919-1973) CSAC no. 51/5/77, 25pp. Biophysics (Muscle) King's College, London HARDY , Sir Alister Clavering (1896-1985). Knight, zoologist. NCUACS no. 5/4/88, 98pp. Bodleian Library, Oxford
