RETHINKING THE HISTORY OF SOLAR WIND STUDIES: EDDINGTON'S ANALYSIS OF COMET MOREHOUSE

2006 ◽  
Vol 60 (3) ◽  
pp. 261-270 ◽  
Author(s):  
Ian T Durham
Keyword(s):  
Solar Wind ◽  
Mathematical Analysis ◽  
Two Dimensions ◽  
Early Career ◽  
First Person ◽  
The Sun ◽  
Royal Observatory ◽  
History Of ◽  
The Creation ◽  
Periodic Comet

Arthur Eddington's very early career is often overshadowed by his later accomplishments. For many years the work he performed at the Royal Observatory, Greenwich, was little studied. In some cases, citations to his work in major journals did not appear for more than three decades. One of his earliest works was a mathematical analysis of the shapes of the envelopes of Comet Morehouse, a non-periodic comet discovered in 1908. Eddington's description of the envelopes, in mathematical terms, as paraboloids projected in two dimensions as parabolas, was not studied in earnest until after his death. Although the primary conclusion of his work has recently been modified, there are several other statements he makes about the source of the creation of these envelopes that suggest he should be acknowledged as the first person to suggest that there is a continuous outflow of ions from the Sun.

1. The Sun, our star

2020 ◽  
pp. 1-41
Author(s):  
Philip Judge
Keyword(s):  
Solar Wind ◽  
Magnetic Fields ◽  
Electric Fields ◽  
Coronal Mass Ejections ◽  
The Sun ◽  
Short History ◽  
Plasma State ◽  
History Of

‘The Sun, our star’ presents a short history of the Sun and its relationship with Earth. While our ancestors worshipped the Sun, we may now take it for granted. Alpha Centauri A, the nearest other Sun-like star, is four light years away, compared to the Sun’s eight light minutes. The Sun and stars are neither solid nor liquid but composed of ionized particles in a plasma state. This plasma can sustain magnetic fields but not electric fields. The Sun exhibits remarkable phenomena such as sunspots, the corona, flares, the solar wind, and coronal mass ejections. Its atmosphere is layered into photosphere, chromosphere, and corona.

First-Person Plural

Theater ◽  
2019 ◽  
Vol 49 (3) ◽  
pp. 5-19
Author(s):  
Daniel Sack
Keyword(s):  
Performance Art ◽  
The Self ◽  
First Person ◽  
Person Plural ◽  
The World ◽  
History Of ◽  
The Creation ◽  
Green Screen ◽  
First Person Plural ◽  
Self Reference

In Daniel Sack’s discussion of Nicola Gunn’s dramatic oeuvre, he finds a through line running between her works—one of self-reference and autofiction, a kind of playful knowledge of the self. In tracing this affinity between her pieces, in particular In the Sans Hotel, In Spite of Myself, Piece for Person and Ghetto Blaster, and Green Screen, Sack identifies the ways in which Gunn’s work speaks to both a contemporary moment in theater and the history of performance art, acknowledging the different baggage of the forms she references while coyly and fluently crossing between them. Sack sees in Gunn’s work the creation of heterotopias, places that open out onto an elsewhere, toward realities that simultaneously exist outside of the world and connect its disparate cultural manifestations together, from identity to ethics, politics to performance.

scholarly journals Inside the Sun: Unsolved Problems

1990 ◽  
Vol 121 ◽  
pp. 5-17 ◽  
Author(s):  
E. Schatzman
Keyword(s):  
Solar Wind ◽  
Planetary System ◽  
Solar Radius ◽  
Accretion Disc ◽  
The Sun ◽  
T Tauri ◽  
History Of ◽  
Strong Gradient ◽  
Rotating Star ◽  
Fast Rotating

AbstractAs it is impossible to approach all the problems concerning the inside of the Sun, a number of questions will not be taken into consideration during the meeting. In this brief overview of the presently unsolved questions I shall insist on some special aspects of the solar properties: the variations of the solar radius, the generation of the solar wind, some interesting effects due to the presence of a strong gradient of 3He, the history of the rotating Sun. The presence of the planetary system suggests that the Sun might have been a T Tauri star, with an accretion disc and may have started on the mains sequence as a fast rotating star. A sketch is given of the possible consequences.

The Camera-I

2020 ◽  
pp. 19-49
Author(s):  
David Anderson
Keyword(s):  
Early Career ◽  
Experimental Film ◽  
Short Films ◽  
Political Agitation ◽  
History Of ◽  
Experimental Works ◽  
The Creation ◽  
Film Making

The opening chapter, ‘The Camera-I: Patrick Keiller’s Early Short Films and Essays’, reconstructs Keiller’s early career and his shift from architecture to film-making, reading the use of ‘subjective camera’ and the creation of ‘subjective townscape’ in his early experimental works as crucial to the developing sensibility of his later docu-narratives. Excavating a history of the ‘London Film-makers’ Co-op’ and examining Keiller’s early essays before looking at the short films Stonebridge Park (1981) and Norwood (1983), it explores the ‘atmosphere of unemployed reverie’ and paranoiac, noir methods that provided a footing for the later Robinson series. At the same time, it offers a view of the exciting world of political agitation and experimental film of 1960s London.

The Social Origins and Provenance of the English Bishops during the Reign of Edward II

1959 ◽  
Vol 9 ◽  
pp. 51-79
Author(s):  
K. Edwards
Keyword(s):  
Middle Ages ◽  
Social Background ◽  
Early Career ◽  
The Political ◽  
Social Origins ◽  
Political Activities ◽  
Edward Ii ◽  
The Social ◽  
Complete Study ◽  
History Of

During the last twenty or twenty-five years medieval historians have been much interested in the composition of the English episcopate. A number of studies of it have been published on periods ranging from the eleventh to the fifteenth and early sixteenth centuries. A further paper might well seem superfluous. My reason for offering one is that most previous writers have concentrated on analysing the professional circles from which the bishops were drawn, and suggesting the influences which their early careers as royal clerks, university masters and students, secular or regular clergy, may have had on their later work as bishops. They have shown comparatively little interest in their social background and provenance, except for those bishops who belonged to magnate families. Some years ago, when working on the political activities of Edward II's bishops, it seemed to me that social origins, family connexions and provenance might in a number of cases have had at least as much influence on a bishop's attitude to politics as his early career. I there fore collected information about the origins and provenance of these bishops. I now think that a rather more careful and complete study of this subject might throw further light not only on the political history of the reign, but on other problems connected with the character and work of the English episcopate. There is a general impression that in England in the later middle ages the bishops' ties with their dioceses were becoming less close, and that they were normally spending less time in diocesan work than their predecessors in the thirteenth century.

Assessment criteria for aggregate social welfare

2020 ◽  
Vol 19 (12) ◽  
pp. 2358-2371
Author(s):  
S.A. Moskal'onov
Keyword(s):  
Social Welfare ◽  
Mathematical Analysis ◽  
Exchange Economy ◽  
Assessment Criteria ◽  
Impossibility Theorem ◽  
New Approaches ◽  
History Of Development ◽  
Arrow's Impossibility Theorem ◽  
History Of

Subject. The article addresses the history of development and provides the criticism of existing criteria for aggregate social welfare (on the simple exchange economy (the Edgeworth box) case). Objectives. The purpose is to develop a unique classification of criteria to assess the aggregate social welfare. Methods. The study draws on methods of logical and mathematical analysis. Results. The paper considers strong, strict and weak versions of the Pareto, Kaldor, Hicks, Scitovsky, and Samuelson criteria, introduces the notion of equivalence and constructs orderings by Pareto, Kaldor, Hicks, Scitovsky, and Samuelson. The Pareto and Samuelson's criteria are transitive, however, not complete. The Kaldor, Hicks, Scitovsky citeria are not transitive in the general case. Conclusions. The lack of an ideal social welfare criterion is the consequence of the Arrow’s Impossibility Theorem, and of the group of impossibility theorems in economics. It is necessary to develop new approaches to the assessment of aggregate welfare.

Elite da Liberdade: a contribution to the history of black clubs in Brazil

2020 ◽  
Vol 9 (1) ◽  
pp. 396-411
Author(s):  
Petrônio José Domingues
Keyword(s):  
Social Inclusion ◽  
Black Identity ◽  
Sao Paulo ◽  
São Paulo ◽  
Educational Discourse ◽  
History Of ◽  
The Creation

This article investigates the trajectory of the Grêmio Dramático, Recreativo e Literário Elite da Liberdade (the Liberdade Elite Guild of Drama, Recreation, and Literature), a black club active in São Paulo, Brazil, from 1919 to 1927. The aim is to reconstruct aspects of the club’s history in light of its educational discourse on civility, which was used as a strategy to promote modern virtues in the black milieu. By appropriating the precepts of civility, Elite da Liberdade helped construct a positive black identity, enabled the creation of bonds of solidarity among its members, and made itself a place of resistance and struggle for social inclusion, recognition, and citizens’ rights.

The Russian Holy Synod and the Greeks

2020 ◽  
Vol 54 (1-3) ◽  
pp. 72-98
Author(s):  
Nikolaos Chrissidis
Keyword(s):  
Early Modern ◽  
Early Modern Period ◽  
Critical Assessment ◽  
Peter The Great ◽  
Modern Period ◽  
Greek History ◽  
History Of ◽  
The Creation

Abstract The article first surveys Greek interpretations of the creation of the Russian Holy Synod by Peter the Great. It provides a critical assessment of the historiographical paradigm offered by N.F. Kapterev for the analysis of Greek-Russian relations in the early modern period. Finally, it proposes that scholars should focus on a Greek history of Greek-Russian relations as a complement and possibly corrective to the Kapterev paradigm.

History of the creation and activities of the League of Nations

2019 ◽  
Vol 2019 (09) ◽  
pp. 108-113
Author(s):  
Alexander Begichev ◽  
Alexander Galushkin ◽  
Andrey Zvonaryev ◽  
Victor Shestak
Keyword(s):  
League Of Nations ◽  
History Of ◽  
The Creation
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