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Aspects of Black Hole Physics
Aspects of Black Hole Physics Andreas Vigand Pedersen The Niels Bohr Institute Academic Advisor: Niels Obers e-mail: [email protected] Abstract: This project examines some of the exact solutions to Einstein’s theory, the theory of linearized gravity, the Komar definition of mass and angular momentum in general relativity and some aspects of (four dimen- sional) black hole physics. The project assumes familiarity with the basics of general relativity and differential geometry, but is otherwise intended to be self contained. The project was written as a ”self-study project” under the supervision of Niels Obers in the summer of 2008. Contents Contents ..................................... 1 Contents ..................................... 1 Preface and acknowledgement ......................... 2 Units, conventions and notation ........................ 3 1 Stationary solutions to Einstein’s equation ............ 4 1.1 Introduction .............................. 4 1.2 The Schwarzschild solution ...................... 6 1.3 The Reissner-Nordstr¨om solution .................. 18 1.4 The Kerr solution ........................... 24 1.5 The Kerr-Newman solution ..................... 28 2 Mass, charge and angular momentum (stationary spacetimes) 30 2.1 Introduction .............................. 30 2.2 Linearized Gravity .......................... 30 2.3 The weak field approximation .................... 35 2.3.1 The effect of a mass distribution on spacetime ....... 37 2.3.2 The effect of a charged mass distribution on spacetime .. 39 2.3.3 The effect of a rotating mass distribution on spacetime .. 40 2.4 Conserved currents in general relativity ............... 43 2.4.1 Komar integrals ........................ 49 2.5 Energy conditions ........................... 53 3 Black holes ................................ 57 3.1 Introduction .............................. 57 3.2 Event horizons ............................ 57 3.2.1 The no-hair theorem and Hawking’s area theorem .... -
The Mashups of Youtube
10.2478/nor-2013-0053 Nordicom Review 34 (2013) 2, pp. 47-63 The Mashups of YouTube Thomas Mosebo Simonsen Abstract This article focuses on YouTube mashups and how we can understand them as a specific subgenre on YouTube. The Mashups are analysed as audiovisual recontextualizations that are given new meaning, e.g., via collaborative social communities or for individual pro- motional purposes. This is elaborated on throughout a discussion on Mashups as a mode of everyday bricolages, which are moreover discussed through a theoretical approach to Mashups as exponents of what has been called “Vernacular Creativity”. The article also argues that the novelty of Mashups is not be found in its formal characteristic, but rather in its social and communicative abilities within the YouTube community. This leads to the article’s overall argument that the main characteristic of the YouTube Mashup can be explained in terms of connectivity. It is argued that Mashups reveal a double articulation of connectivity; one that involves the social mechanisms of the Mashups, and another mode, which concerns the explicit embedding of structural connectivity that accentuates the medium-specific infrastructure of YouTube. This double articulation of connectivity is furthermore elaborated on by including Grusin and Bolter’s concept of remediation. Methodologically, the article draws on empirical observations and examples of Mashups are included to demonstrate the article’s main arguments. Keywords: YouTube, mashups, connectivity, remediation, social media, vernacular creativity Introduction On YouTube, a culture of audiovisual expressions has emerged that I will characterize here as the Mashup culture of YouTube. Mashups are videos that have their origin in the music sampling culture and are considered recontexualizations of already existing materials (cf. -
Legal "Black Hole"? Extraterritorial State Action and International Treaty Law on Civil and Political Rights
Michigan Journal of International Law Volume 26 Issue 3 2005 Legal "Black Hole"? Extraterritorial State Action and International Treaty Law on Civil and Political Rights Ralph Wilde University of London Follow this and additional works at: https://repository.law.umich.edu/mjil Part of the Human Rights Law Commons, Military, War, and Peace Commons, and the National Security Law Commons Recommended Citation Ralph Wilde, Legal "Black Hole"? Extraterritorial State Action and International Treaty Law on Civil and Political Rights, 26 MICH. J. INT'L L. 739 (2005). Available at: https://repository.law.umich.edu/mjil/vol26/iss3/1 This Article is brought to you for free and open access by the Michigan Journal of International Law at University of Michigan Law School Scholarship Repository. It has been accepted for inclusion in Michigan Journal of International Law by an authorized editor of University of Michigan Law School Scholarship Repository. For more information, please contact [email protected]. LEGAL "BLACK HOLE"? EXTRATERRITORIAL STATE ACTION AND INTERNATIONAL TREATY LAW ON CIVIL AND POLITICAL RIGHTSt Ralph Wilde* I. INTRODUCTION ......................................................................... 740 II. EXTRATERRITORIAL STATE ACTIVITIES ................................... 741 III. THE NEED FOR GREATER SCRUTINY ........................................ 752 A. Ignoring ExtraterritorialActivity ...................................... 753 B. GreaterRisks of Rights Violations in the ExtraterritorialContext .................................................... -
The Brain That Changes Itself
The Brain That Changes Itself Stories of Personal Triumph from the Frontiers of Brain Science NORMAN DOIDGE, M.D. For Eugene L. Goldberg, M.D., because you said you might like to read it Contents 1 A Woman Perpetually Falling . Rescued by the Man Who Discovered the Plasticity of Our Senses 2 Building Herself a Better Brain A Woman Labeled "Retarded" Discovers How to Heal Herself 3 Redesigning the Brain A Scientist Changes Brains to Sharpen Perception and Memory, Increase Speed of Thought, and Heal Learning Problems 4 Acquiring Tastes and Loves What Neuroplasticity Teaches Us About Sexual Attraction and Love 5 Midnight Resurrections Stroke Victims Learn to Move and Speak Again 6 Brain Lock Unlocked Using Plasticity to Stop Worries, OPsessions, Compulsions, and Bad Habits 7 Pain The Dark Side of Plasticity 8 Imagination How Thinking Makes It So 9 Turning Our Ghosts into Ancestors Psychoanalysis as a Neuroplastic Therapy 10 Rejuvenation The Discovery of the Neuronal Stem Cell and Lessons for Preserving Our Brains 11 More than the Sum of Her Parts A Woman Shows Us How Radically Plastic the Brain Can Be Appendix 1 The Culturally Modified Brain Appendix 2 Plasticity and the Idea of Progress Note to the Reader All the names of people who have undergone neuroplastic transformations are real, except in the few places indicated, and in the cases of children and their families. The Notes and References section at the end of the book includes comments on both the chapters and the appendices. Preface This book is about the revolutionary discovery that the human brain can change itself, as told through the stories of the scientists, doctors, and patients who have together brought about these astonishing transformations. -
Trials and Tribulations: Readings and Misreadings of the Revolutionary Body in French Women Novelists, 1792-1799
Trials and Tribulations: Readings and Misreadings of the Revolutionary Body in French Women Novelists, 1792-1799. The Revolution! An unutterable word. Who can claim to understand clearly and precisely that set of events, alternatively glorious and deplorable, some of them the fruit of genius and daring, or again, of the most respectable integrity, and others born of the most perverse iniquity. Jeanbon Saint-André, Committee of Public Safety One would be hard pressed to find a more confusing period than that of the French Revolution, a time when the body politic tried to integrate and embody two equally powerful but ostensibly oppositional ideologies of the eighteenth century: sensibility and rationalism. The dramatic and tragic disjunction between the two, the one calling on passion, the other dispassion, resulted in a schizophrenic production of contradictory signs, symbols, discourse and actions during the revolutionary period, coming into sharp focus during the Terror, 1793-1794. For the Revolutionaries, it was not a question of one mode opposing the other, but rather they conceived the two modes along a continuum as one led to, and justified, the other. The philosophical, medical, and literary work on materialism and sensationism earlier in the century and in the years leading up to 1789 set the foundations for this connection. Following J. J. Rousseau, the revolutionary’s aim was to embody reason, virtue and sensibility. The violent acts resulting from the sensibility/rationalism dyad, however, showed up the contradictions inherent in connecting the two. The internal conflict within revolutionary discourse, which proclaimed on the one hand love and compassion for one’s fellow man, and cold hard impartial justice on the other, was subject to heated discussion amongst the revolutionaries whose members tried to negotiate the disjunction; for some, such as St. -
Mapping Prostitution: Sex, Space, Taxonomy in the Fin- De-Siècle French Novel
Mapping Prostitution: Sex, Space, Taxonomy in the Fin- de-Siècle French Novel The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Tanner, Jessica Leigh. 2013. Mapping Prostitution: Sex, Space, Taxonomy in the Fin-de-Siècle French Novel. Doctoral dissertation, Harvard University. Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:10947429 Terms of Use This article was downloaded from Harvard University’s DASH repository, WARNING: This file should NOT have been available for downloading from Harvard University’s DASH repository. Mapping Prostitution: Sex, Space, Taxonomy in the Fin-de-siècle French Novel A dissertation presented by Jessica Leigh Tanner to The Department of Romance Languages and Literatures in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the subject of Romance Languages and Literatures Harvard University Cambridge, Massachusetts May 2013 © 2013 – Jessica Leigh Tanner All rights reserved. Dissertation Advisor: Professor Janet Beizer Jessica Leigh Tanner Mapping Prostitution: Sex, Space, Taxonomy in the Fin-de-siècle French Novel Abstract This dissertation examines representations of prostitution in male-authored French novels from the later nineteenth century. It proposes that prostitution has a map, and that realist and naturalist authors appropriate this cartography in the Second Empire and early Third Republic to make sense of a shifting and overhauled Paris perceived to resist mimetic literary inscription. Though always significant in realist and naturalist narrative, space is uniquely complicit in the novel of prostitution due to the contemporary policy of reglementarism, whose primary instrument was the mise en carte: an official registration that subjected prostitutes to moral and hygienic surveillance, but also “put them on the map,” classifying them according to their space of practice (such as the brothel or the boulevard). -
Rebecca Sugar Songs from Adventure Time & Steven
REBECCA SUGAR SONGS FROM ADVENTURE TIME & STEVEN UNIVERSE This book is a collection of ukulele tabs for songs by Rebecca Sugar from shows Adventure Time and Steven Universe. Tabs, lyrics, and background art by Rebecca Sugar. Rebecca Sugar is an American artist, composer, and director who is best known for being a writer and storyboard artist on Adventure Time as well as being the creator of Steven Universe. Material gathered and book designed by Angela Liu. Cover art and icons provided by Angela Liu. Made for Communication Design Fundamentals, 2015 (Carnemgie Mellon University). Table of Contents Adventure Time 4 - As a Tropical Island 6 - Oh Fionna 8 - My Best Friends in the World 10 - Remember You 12 - Good Little Girl Steven Universe 14 - Steven Universe Theme 16 - Be Wherever You Are As a Tropical Island Adventure Time / Season 3, Ep 2: Morituri Te Salutamux Air date: July 18, 2011 G C D7 G On a tropical island, on a tropical island. G C D7 G On a tropical island, on a tropical island! G C On a tropical island, D7 G Underneath a motlen lava moon. G C Hangin’ with the hoola dancers, D7 G Asking questions cause they got all the answers. G G Puttin’ on lotion, sitting by the ocean. C D7 Rubbin’ it on my body, rubbin’ it on my body. G G B7 Cmaj7 Get me out of this ca-a-ave, C7 G B7 Cmaj7 cause’ it’s nothin’ but a gladiator gra-a-ave. G G B7 Cmaj7 And if we stick to the pla-a-an, C7 G B7 Cmaj7 I think I’ll turn into a lava ma-a-an. -
Forgotten Tales a Thesis Presented to the Faculty of the College of Arts And
Forgotten Tales A thesis presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Master of Arts Lindsey A. Fischer April 2017 ©2017 Lindsey A. Fischer. All Rights Reserved. 2 This thesis titled Forgotten Tales by LINDSEY A. FISCHER has been approved for the department of English and the College of Arts and Sciences by Patrick O’Keeffe Assistant Professor of English Robert Frank Dean, College of Arts and Sciences 3 ABSTRACT FISCHER, LINDSEY A., M.A., April 2017, English Forgotten Tales Director of Thesis: Patrick O’Keeffe This collection of short stories retells fairy tales and myths to bring out themes of feminism, heroism, and forgotten voices. The critical introduction is an investigation into the history of fairy tale retellings, and how we can best write works that engage in a conversation with other stories. This intro also argues for a return to the oral tradition, which is how these original fairy tales and myths were told, in order to evoke the spontaneity of oral performance. This project is interested in story-telling, from our childhood to adulthood, as I create a new canon of fairy tales for grown-ups. 4 DEDICATION To my parents and brothers for their love and support, to E. for believing in me, and to the wonderful literary nerds in Ellis 8 for the inspiration 5 ACKNOWLEDGMENTS This project would never have happened without the advice and guidance of my adviser, Patrick O’Keeffe. Thank you for all the editing and encouragement. -
A Second Look at the Suez Canal Cases: Excuse for Nonperformance of Contractual Obligations in the Light of Economic Theory
Maurer School of Law: Indiana University Digital Repository @ Maurer Law Articles by Maurer Faculty Faculty Scholarship 1969 A Second Look at the Suez Canal Cases: Excuse for Nonperformance of Contractual Obligations in the Light of Economic Theory Robert L. Birmingham Indiana University School of Law Follow this and additional works at: https://www.repository.law.indiana.edu/facpub Part of the Contracts Commons, Economic Theory Commons, and the Law and Economics Commons Recommended Citation Birmingham, Robert L., "A Second Look at the Suez Canal Cases: Excuse for Nonperformance of Contractual Obligations in the Light of Economic Theory" (1969). Articles by Maurer Faculty. 1700. https://www.repository.law.indiana.edu/facpub/1700 This Article is brought to you for free and open access by the Faculty Scholarship at Digital Repository @ Maurer Law. It has been accepted for inclusion in Articles by Maurer Faculty by an authorized administrator of Digital Repository @ Maurer Law. For more information, please contact [email protected]. A Second Look At The Suez Canal Cases: Excuse For Nonperformance Of Contractual Obligations In The Light Of Economic Theory By ROBERT L. BImiMNGHAm* Take the area of relief available in cases where impossibility or mu- tual mistake excuses performance by both parties. We have almost totally failed to work out a system that satisfies anyone for dis- tributing the wide variety of losses (including lost expectations) caused by events which, by definition, are the fault of neither party.... [P3erhaps, the courts have managed to reach the best solutions on an individual case basis by the seat of their pants. It is at least open to doubt. -
An Annotated List of Fantasy Novels Incorporating Tarot (1990-2005)
Volume 38 Number 2 Article 12 5-15-2020 An Annotated List of Fantasy Novels Incorporating Tarot (1990-2005) Emily E. Auger Independent Scholar Follow this and additional works at: https://dc.swosu.edu/mythlore Part of the Children's and Young Adult Literature Commons Recommended Citation Auger, Emily E. (2020) "An Annotated List of Fantasy Novels Incorporating Tarot (1990-2005)," Mythlore: A Journal of J.R.R. Tolkien, C.S. Lewis, Charles Williams, and Mythopoeic Literature: Vol. 38 : No. 2 , Article 12. Available at: https://dc.swosu.edu/mythlore/vol38/iss2/12 This Notes and Letters is brought to you for free and open access by the Mythopoeic Society at SWOSU Digital Commons. It has been accepted for inclusion in Mythlore: A Journal of J.R.R. Tolkien, C.S. Lewis, Charles Williams, and Mythopoeic Literature by an authorized editor of SWOSU Digital Commons. An ADA compliant document is available upon request. For more information, please contact [email protected]. To join the Mythopoeic Society go to: http://www.mythsoc.org/join.htm Mythcon 51: A VIRTUAL “HALFLING” MYTHCON July 31 - August 1, 2021 (Saturday and Sunday) http://www.mythsoc.org/mythcon/mythcon-51.htm Mythcon 52: The Mythic, the Fantastic, and the Alien Albuquerque, New Mexico; July 29 - August 1, 2022 http://www.mythsoc.org/mythcon/mythcon-52.htm Abstract This annotated list of books from 1990 through 2005 continues the bibliography in Mythlore 36.2 (Spring- Summer 2018) and includes abstracts for each novel or series and some card layout diagrams. Additional Keywords Fantasy literature—Bibliography; Tarot in literature This notes and letters is available in Mythlore: A Journal of J.R.R. -
Y A-T-Il Encore De La Place En Bas ? Le Paysage Contemporain Des Nanosciences Et Des Nanotechnologies
Philosophia Scientiæ Travaux d'histoire et de philosophie des sciences 23-1 | 2019 Y a-t-il encore de la place en bas ? Le paysage contemporain des nanosciences et des nanotechnologies Jonathan Simon et Bernadette Bensaude-Vincent (dir.) Édition électronique URL : http://journals.openedition.org/philosophiascientiae/1693 DOI : 10.4000/philosophiascientiae.1693 ISSN : 1775-4283 Éditeur Éditions Kimé Édition imprimée Date de publication : 18 février 2019 ISSN : 1281-2463 Référence électronique Jonathan Simon et Bernadette Bensaude-Vincent (dir.), Philosophia Scientiæ, 23-1 | 2019, « Y a-t-il encore de la place en bas ? » [En ligne], mis en ligne le 01 janvier 2021, consulté le 30 mars 2021. URL : http://journals.openedition.org/philosophiascientiae/1693 ; DOI : https://doi.org/10.4000/ philosophiascientiae.1693 Tous droits réservés Y a-t-il encore de la place en bas ? Le paysage contemporain des nanosciences et des nanotechnologies Introduction. Nanotechnoscience: The End of the Beginning Bernadette Bensaude-Vincent Université Paris 1 Panthéon-Sorbonne (France) Jonathan Simon Archives Henri-Poincaré – Philosophie et Recherches sur les Sciences et les Technologies (AHP-PReST), Université de Lorraine, Université de Strasbourg, CNRS, Nancy (France) Is there still room at the bottom? The question providing the theme for the present issue of Philosophia Scientiæ is, of course, adapted from Richard Feynman’s well-known speech at the 1959 meeting of the American Physical Society. On this occasion he attracted physicists’ attention to the vast potential of working at the scale of the nanometre if not the ångström, using the catchy title: “Plenty of Room at the Bottom” [Feynman 1959]. This hookline from a famous Nobel laureate physicist served as a motto for the emerging field of nanoscience and nanotechnology (which we will here abbreviate to nanoresearch) in the early 2000s. -
Dark Mermaids
_________________________________________________________________________Swansea University E-Theses Dark Mermaids. Lauppe-Dunbar, Anne How to cite: _________________________________________________________________________ Lauppe-Dunbar, Anne (2012) Dark Mermaids.. thesis, Swansea University. http://cronfa.swan.ac.uk/Record/cronfa42723 Use policy: _________________________________________________________________________ This item is brought to you by Swansea University. Any person downloading material is agreeing to abide by the terms of the repository licence: copies of full text items may be used or reproduced in any format or medium, without prior permission for personal research or study, educational or non-commercial purposes only. The copyright for any work remains with the original author unless otherwise specified. The full-text must not be sold in any format or medium without the formal permission of the copyright holder. Permission for multiple reproductions should be obtained from the original author. Authors are personally responsible for adhering to copyright and publisher restrictions when uploading content to the repository. Please link to the metadata record in the Swansea University repository, Cronfa (link given in the citation reference above.) http://www.swansea.ac.uk/library/researchsupport/ris-support/ DARK MERMAIDS Anne Lauppe-Dunbar Submitted to Swansea University in fulfilment of the requirements for the Degree of Doctor of Philosophy Swansea University 2012 ProQuest Number: 10807492 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a com plete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. uest ProQuest 10807492 Published by ProQuest LLC(2018).