Wallace Eckert
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General Index
General Index Italicized page numbers indicate figures and tables. Color plates are in- cussed; full listings of authors’ works as cited in this volume may be dicated as “pl.” Color plates 1– 40 are in part 1 and plates 41–80 are found in the bibliographical index. in part 2. Authors are listed only when their ideas or works are dis- Aa, Pieter van der (1659–1733), 1338 of military cartography, 971 934 –39; Genoa, 864 –65; Low Coun- Aa River, pl.61, 1523 of nautical charts, 1069, 1424 tries, 1257 Aachen, 1241 printing’s impact on, 607–8 of Dutch hamlets, 1264 Abate, Agostino, 857–58, 864 –65 role of sources in, 66 –67 ecclesiastical subdivisions in, 1090, 1091 Abbeys. See also Cartularies; Monasteries of Russian maps, 1873 of forests, 50 maps: property, 50–51; water system, 43 standards of, 7 German maps in context of, 1224, 1225 plans: juridical uses of, pl.61, 1523–24, studies of, 505–8, 1258 n.53 map consciousness in, 636, 661–62 1525; Wildmore Fen (in psalter), 43– 44 of surveys, 505–8, 708, 1435–36 maps in: cadastral (See Cadastral maps); Abbreviations, 1897, 1899 of town models, 489 central Italy, 909–15; characteristics of, Abreu, Lisuarte de, 1019 Acequia Imperial de Aragón, 507 874 –75, 880 –82; coloring of, 1499, Abruzzi River, 547, 570 Acerra, 951 1588; East-Central Europe, 1806, 1808; Absolutism, 831, 833, 835–36 Ackerman, James S., 427 n.2 England, 50 –51, 1595, 1599, 1603, See also Sovereigns and monarchs Aconcio, Jacopo (d. 1566), 1611 1615, 1629, 1720; France, 1497–1500, Abstraction Acosta, José de (1539–1600), 1235 1501; humanism linked to, 909–10; in- in bird’s-eye views, 688 Acquaviva, Andrea Matteo (d. -
Chester County Marriages Bride Index 1885-1930
Chester County Marriages Bride Index 1885-1930 Bride's Last Name Bride's First Name Bride's Middle Bride's Date of Birth Bride's Age Groom's First Groom's Last Date of Application Date of Marriage Place of Marriage License # Dabney Ruth 47 Arthur Garner October 16, 1929 West Chester 29675 Dabundo Louise 18 Saverio DiMaio December 10, 1925 West Chester 26115.5 Dadley Fannie K 23 Albert Smith April 12, 1916 Toughkenamon 19118 Dagastina LorenzaFebruary 6, 1889 Michele Mastragiolo March 16, 1908 Norristown 13663 Dagne Eva EJuly 8, 1874 Jesse Downs December 27, 1899 West Chester 7490 Dagostina Philomena 18 Nicholas Tuscano August 2, 1925 Phoenixville 25847 D'Agostino Angelina 28 Gabriele Natale April 19, 1915 Norristown 18401 Dague Anna LSeptember 23, 1884 James Porter December 18, 1907 Parkesburg 13097 Dague CoraNovember 10, 1874 Vernon Powell February 10, 1904 Lionville 10244 Dague Lillie AApril 27, 1873 Frederick Gottier April 7, 1902 West Chester 9034 Dague M KatieJanuary 1, 1872 Charles Gantt April 17, 1900 Downington 7673 Dague Mary J 29 Ralph Young March 5, 1921 Coatesville 22856 Dague Sara Ellen 36 Rees Helms October 4, 1922 Honey Brook 23933 Dague Sarah Emma1858 James Eppihimer January 14, 1886 West Chester 104 Dahl Olga G 23 Claude Prettyman January 24, 1925 West Chester 25559 Dahms Elsie Annie 26 Chester Kirkhoff October 31, 1929 Pottstown 29710 Dailey Agnes1859 John McCarthy January 13, 1886 West Chester 084 Dailey Anna 19 Rhinehart Merkt August 14, 1913 Downingtown 17216 Dailey Anna RApril 29, 1877 18 Thomas Argne January 4, 1896 -
Downloaded from Brill.Com09/24/2021 10:06:53AM Via Free Access 268 Revue De Synthèse : TOME 139 7E SÉRIE N° 3-4 (2018) Chercheur Pour IBM
REVUE DE SYNTHÈSE : TOME 139 7e SÉRIE N° 3-4 (2018) 267-288 brill.com/rds A Task that Exceeded the Technology: Early Applications of the Computer to the Lunar Three-body Problem Allan Olley* Abstract: The lunar Three-Body problem is a famously intractable problem of Newtonian mechanics. The demand for accurate predictions of lunar motion led to practical approximate solutions of great complexity, constituted by trigonometric series with hundreds of terms. Such considerations meant there was demand for high speed machine computation from astronomers during the earliest stages of computer development. One early innovator in this regard was Wallace J. Eckert, a Columbia University professor of astronomer and IBM researcher. His work illustrates some interesting features of the interaction between computers and astronomy. Keywords: history of astronomy – three body problem – history of computers – Wallace J. Eckert Une tâche excédant la technologie : l’utilisation de l’ordinateur dans le problème lunaire des trois corps Résumé : Le problème des trois corps appliqué à la lune est un problème classique de la mécanique newtonienne, connu pour être insoluble avec des méthodes exactes. La demande pour des prévisions précises du mouvement lunaire menait à des solutions d’approximation pratiques qui étaient d’une complexité considérable, avec des séries tri- gonométriques contenant des centaines de termes. Cela a très tôt poussé les astronomes à chercher des outils de calcul et ils ont été parmi les premiers à utiliser des calculatrices rapides, dès les débuts du développement des ordinateurs modernes. Un innovateur des ces années-là est Wallace J. Eckert, professeur d’astronomie à Columbia University et * Allan Olley, born in 1979, he obtained his PhD-degree from the Institute for the History and Philosophy of Science Technology (IHPST), University of Toronto in 2011. -
Dirk Brouwer
NATIONAL ACADEMY OF SCIENCES D I R K B R O U W ER 1902—1966 A Biographical Memoir by G . M . C LEMENCE Any opinions expressed in this memoir are those of the author(s) and do not necessarily reflect the views of the National Academy of Sciences. Biographical Memoir COPYRIGHT 1970 NATIONAL ACADEMY OF SCIENCES WASHINGTON D.C. DIRK BROUWER September 1, 1902-January 31, 1966 BY G. M. CLEMENCE IRK BROUWER, who contributed more to dynamical astron- D omy than any other astronomer of his time, died on January 31, 1966, after a week in hospital; his death was occa- sioned by an acute disorder of the heart. He is survived by his widow and an only son, James. Brouwer was born in Rotterdam, the Netherlands, on September 1, 1902, the son of a civil service employee. As a stu- dent in the University of Leiden he studied mathematics and astronomy, coming under the influence of Willem de Sitter, who in his own day was the dean of that branch of astronomy in which Brouwer was to do most of his work. Receiving the Ph.D. degree in 1927 under de Sitter, Brouwer came to the United States as a fellow of the International Education Board, spending a year at the University of California in Berkeley and at Yale University, where he was to remain the rest of his life. His initial appointment at Yale was in 1928 as research as- sistant to Ernest W. Brown, who was then the greatest living authority on the motion of the moon. -
DMAAC – February 1973
LUNAR TOPOGRAPHIC ORTHOPHOTOMAP (LTO) AND LUNAR ORTHOPHOTMAP (LO) SERIES (Published by DMATC) Lunar Topographic Orthophotmaps and Lunar Orthophotomaps Scale: 1:250,000 Projection: Transverse Mercator Sheet Size: 25.5”x 26.5” The Lunar Topographic Orthophotmaps and Lunar Orthophotomaps Series are the first comprehensive and continuous mapping to be accomplished from Apollo Mission 15-17 mapping photographs. This series is also the first major effort to apply recent advances in orthophotography to lunar mapping. Presently developed maps of this series were designed to support initial lunar scientific investigations primarily employing results of Apollo Mission 15-17 data. Individual maps of this series cover 4 degrees of lunar latitude and 5 degrees of lunar longitude consisting of 1/16 of the area of a 1:1,000,000 scale Lunar Astronautical Chart (LAC) (Section 4.2.1). Their apha-numeric identification (example – LTO38B1) consists of the designator LTO for topographic orthophoto editions or LO for orthophoto editions followed by the LAC number in which they fall, followed by an A, B, C or D designator defining the pertinent LAC quadrant and a 1, 2, 3, or 4 designator defining the specific sub-quadrant actually covered. The following designation (250) identifies the sheets as being at 1:250,000 scale. The LTO editions display 100-meter contours, 50-meter supplemental contours and spot elevations in a red overprint to the base, which is lithographed in black and white. LO editions are identical except that all relief information is omitted and selenographic graticule is restricted to border ticks, presenting an umencumbered view of lunar features imaged by the photographic base. -
Lunar Orbiter Ii
NASA CONTRACTOR NASA CR-883 REPORT LUNAR ORBITER II Photographic Mission Summary Prepared by THE BOEING COMPANY Seattle, Wash. for Langley Research Center NATIONAl AERONAUTICS AND SPACE ADMINISTRATION • WASHINGTON, D. C. • OCTOBER 1967 THE CRATER COPERNICUS - Photo taken by NASA-Boeing Lunar Orbiter II, November 23, 1966,00:05:42 GMT, from a distance of 150 miles. NASA CR-883 LUNAR ORBITER II Photographic Mission Summary Distribution of this report is provided in the interest of information exchange. Responsibility for the contents resides in the author or organization that prepared it. Issued by Originator as Document No. D2-100752-1 Prepared under Contract No. NAS 1-3800 by THE BOEING COMPANY Seattle, Wash. for Langley Research Center NATIONAL AERONAUTICS AND SPACE ADMINISTRATION For sole by the Clearinghouse for Federal Scientific and Technical Information Springfield, Virginia 22151 - CFSTI price $3.00 CONTENTS Page No. 1.0 LUNAR ORBITER II MISSION SUMMARY 1 1.1 INTRODUCTION 4 1.1.1 Program Description 4 1.1.2 Program Management 5 1.1.3 Program Objectives 6 1.1.3.1 Mission II Objectives 6 1.1.4 Mission Design 8 1.1.5 Flight Vehicle Description 12 1.2 LAUNCH PREPARATION AND OPERATIONS 19 1.2.1 Launch Vehicle Preparation 19 1.2.2 Spacecraft Preparation 21 1.2.3 Launch Countdown 21 1.2.4 Launch Phase 22 1.2.4.1 Flight Vehicle Performance 22 1.2.5 Data Acquisition 24 1.3 MISSION OPERATIONS 29 1.3.1 Mission Profile 29 1.3.2 Spacecraft Performance 31 1.3.2.1 Photo Subsystem Performance 32 1.3.2.2 Power Subsystem Performance 34 1.3.2.3 Communications -
Moon-Earth-Sun: the Oldest Three-Body Problem
Moon-Earth-Sun: The oldest three-body problem Martin C. Gutzwiller IBM Research Center, Yorktown Heights, New York 10598 The daily motion of the Moon through the sky has many unusual features that a careful observer can discover without the help of instruments. The three different frequencies for the three degrees of freedom have been known very accurately for 3000 years, and the geometric explanation of the Greek astronomers was basically correct. Whereas Kepler’s laws are sufficient for describing the motion of the planets around the Sun, even the most obvious facts about the lunar motion cannot be understood without the gravitational attraction of both the Earth and the Sun. Newton discussed this problem at great length, and with mixed success; it was the only testing ground for his Universal Gravitation. This background for today’s many-body theory is discussed in some detail because all the guiding principles for our understanding can be traced to the earliest developments of astronomy. They are the oldest results of scientific inquiry, and they were the first ones to be confirmed by the great physicist-mathematicians of the 18th century. By a variety of methods, Laplace was able to claim complete agreement of celestial mechanics with the astronomical observations. Lagrange initiated a new trend wherein the mathematical problems of mechanics could all be solved by the same uniform process; canonical transformations eventually won the field. They were used for the first time on a large scale by Delaunay to find the ultimate solution of the lunar problem by perturbing the solution of the two-body Earth-Moon problem. -
IRPA13 Final Program
IRPA13 v v Final Programme v DOCHART CARRON To Clyde Auditorium, Forth and Gala Rooms and Hotel HALL 4 LOMOND BOISDALE ALSH 13 - 18 May 2012 CLYDE AUDITORIUMCLYDE AUDITORIUM Magnox Fuel Pond Alternative ILW Treatment Bradwell turbine hall MagnoxDecommissioning Fuel Pond Alternative& Disposition ILW Treatment demolitionBradwell turbine hall FORTH ROOM Decommissioning & Disposition demolition (GROUND FLOOR) GALA ROOM (FIRST FLOOR) ProvidingProviding integrated integrated services andand solutions to the global nuclear industry TOILETS (WC’s) M-MALE F-FEMALE TOILETS CLOAKROOM solutions to the global nuclear industry TOILETS FOR DISABLED SHOP EnergySolutions is an international nuclear services company MEDICAL CENTRE BABYCARE ROOMS Magnox Fuel Pond Alternative ILW Treatment Bradwell turbine hall INFORMATION & BUSINESS CENTRE CATERING DecommissioningEnergywith operationsSolutions aroundis& anDisposition international the world, Energy nuclearSolutions’ servicesdemolition work company BOX OFFICE LIFT withspans operations the nuclear around life cycle the world, from operating EnergySolutions’ nuclear power work BANK RECEPTION spansstations the throughnuclear late-life life cycle management from operating and on nuclear to defueling, power stationsdecommissioning, through late-life waste management processing and and packaging, on to defueling, and Providingdecommissioning,complete integrated site restoration. waste processing services and packaging, and and complete site restoration. Registration, Exhibition, solutionsIn the UK,to wethe manage, global on behalf nuclear of the Nuclear industry Hall 4 SECC, Glasgow Posters and Catering Decommissioning Authority, 22 Magnox reactors across 10 In sites,the UK, over we seeing manage, the safe on behalfdelivery of of the continued Nuclear operations. Opening Ceremony, Plenary EnergyDecommissioningSolutions is an Authorit internationaly, 22 Magnox nuclear reactors services across 10 company Clyde Auditorium sites,For further over information seeing contact: the safe delivery of continued operations. -
On the Materials Science of Nature's Arms Race
PROGRESS REPORT Natural Defense www.advmat.de On the Materials Science of Nature’s Arms Race Zengqian Liu, Zhefeng Zhang,* and Robert O. Ritchie* materials created by Nature, as opposed to Biological material systems have evolved unique combinations of mechanical “traditional” man-made solids. Extensive properties to fulfill their specific function through a series of ingenious research efforts have been directed to such designs. Seeking lessons from Nature by replicating the underlying principles materials, with emphasis on bamboo,[4,5] [6–8] [9–15] [16–21] of such biological materials offers new promise for creating unique combi- trees, mollusks, arthropods, birds,[22–27] fish,[28–34] mammals,[35–43] and nations of properties in man-made systems. One case in point is Nature’s human beings,[44–53] motivated not only means of attack and defense. During the long-term evolutionary “arms race,” by their unique structures and properties/ naturally evolved weapons have achieved exceptional mechanical efficiency functionalities, but also by the salient with a synergy of effective offense and persistence—two characteristics that mechanisms and underlying design prin- often tend to be mutually exclusive in many synthetic systems—which may ciples that account for their long-term perfection. present a notable source of new materials science knowledge and inspiration. Biological systems represent how a This review categorizes Nature’s weapons into ten distinct groups, and dis- wide diversity of generally composite cusses the unique structural and mechanical designs of each group by taking materials can be developed to best fulfill representative systems as examples. The approach described is to extract their specific demands using a fairly small the common principles underlying such designs that could be translated palette of chemical constituents, often into man-made materials. -
Council Congratulates Exxon Education Foundation
from.qxp 4/27/98 3:17 PM Page 1315 From the AMS ics. The Exxon Education Foundation funds programs in mathematics education, elementary and secondary school improvement, undergraduate general education, and un- dergraduate developmental education. —Timothy Goggins, AMS Development Officer AMS Task Force Receives Two Grants The AMS recently received two new grants in support of its Task Force on Excellence in Mathematical Scholarship. The Task Force is carrying out a program of focus groups, site visits, and information gathering aimed at developing (left to right) Edward Ahnert, president of the Exxon ways for mathematical sciences departments in doctoral Education Foundation, AMS President Cathleen institutions to work more effectively. With an initial grant Morawetz, and Robert Witte, senior program officer for of $50,000 from the Exxon Education Foundation, the Task Exxon. Force began its work by organizing a number of focus groups. The AMS has now received a second grant of Council Congratulates Exxon $50,000 from the Exxon Education Foundation, as well as a grant of $165,000 from the National Science Foundation. Education Foundation For further information about the work of the Task Force, see “Building Excellence in Doctoral Mathematics De- At the Summer Mathfest in Burlington in August, the AMS partments”, Notices, November/December 1995, pages Council passed a resolution congratulating the Exxon Ed- 1170–1171. ucation Foundation on its fortieth anniversary. AMS Pres- ident Cathleen Morawetz presented the resolution during —Timothy Goggins, AMS Development Officer the awards banquet to Edward Ahnert, president of the Exxon Education Foundation, and to Robert Witte, senior program officer with Exxon. -
Summary of Sexual Abuse Claims in Chapter 11 Cases of Boy Scouts of America
Summary of Sexual Abuse Claims in Chapter 11 Cases of Boy Scouts of America There are approximately 101,135sexual abuse claims filed. Of those claims, the Tort Claimants’ Committee estimates that there are approximately 83,807 unique claims if the amended and superseded and multiple claims filed on account of the same survivor are removed. The summary of sexual abuse claims below uses the set of 83,807 of claim for purposes of claims summary below.1 The Tort Claimants’ Committee has broken down the sexual abuse claims in various categories for the purpose of disclosing where and when the sexual abuse claims arose and the identity of certain of the parties that are implicated in the alleged sexual abuse. Attached hereto as Exhibit 1 is a chart that shows the sexual abuse claims broken down by the year in which they first arose. Please note that there approximately 10,500 claims did not provide a date for when the sexual abuse occurred. As a result, those claims have not been assigned a year in which the abuse first arose. Attached hereto as Exhibit 2 is a chart that shows the claims broken down by the state or jurisdiction in which they arose. Please note there are approximately 7,186 claims that did not provide a location of abuse. Those claims are reflected by YY or ZZ in the codes used to identify the applicable state or jurisdiction. Those claims have not been assigned a state or other jurisdiction. Attached hereto as Exhibit 3 is a chart that shows the claims broken down by the Local Council implicated in the sexual abuse. -
A Task That Exceeded the Technology: Early Applications of the Computer to the Lunar Three-Body Problem *
A task that exceeded the technology: early applications of the computer to the lunar three-body problem * Allan Olley Abstract: The lunar Three-Body problem is a famously intractable aspect of Newto- nian mechanics. The demand for accurate predictions of lunar motion led to practical ap- proximate solutions of great complexity, constituted by trigonometric series with hundreds of terms. Such considerations meant there was demand for high speed machine computation from astronomers during the earliest stages of computer development. One early innovator in this regard was Wallace J. Eckert, a Columbia University professor of astronomer and IBM researcher. His work illustrates some interesting features of the interaction between computers and astronomy. Keywords: history of astronomy, three body problem, history of computers, W. J. Eckert *This is the submitted (ie unreviewed) version of this article, which appears in its official version at Revue de Synth`ese, Vol. 139, iss. 3-4, pp. 267-288 DOI: 10.1163/19552343-13900014 . Allan Olley, born in 1979, is an independent scholar, whose research focuses on the history of computers and celestial mechanics. ([email protected]) 1 The three body problem in astronomy consists of finding a general expression for the trajectory of three celestial bodies in mutual gravitational attraction. Unlike the two body problem that admits of a ready solution, the three body problem is famously intractable with no definitive solution for the general case and this has made it the focus of a great deal of intellectual effort. The first manifestation of these difficulties was Newton's attempts to use his theory of gravity to derive adequate predictions of the motion of the Moon.