Karel Nel & COSMOS: A Far-Reaching Artist-in-Residence Collaboration

Leonardo ◽  
2021 ◽  
pp. 89-93
Author(s):  
Barbara Amelia King ◽  
Peter Martinez

Abstract The phenomena of the universe form a common focus for the interrelationship between art that has space as its central concern and the astronomical sciences, as both disciplines strive to observe and express the mysteries of the cosmos. An unwavering mutual interest in space and mutual respect for each discipline form the nexus between the two. Some scientific projects have artist-in-residence programs that promote innovative art/science dialogues. Although most residencies are designed for the short term, one has certainly stood the test of time. The authors analyze one 15-year collaboration between visual artist Karel Nel and Caltech's Cosmic Evolution Survey, COSMOS.

2012 ◽  
Vol 27 (04) ◽  
pp. 1250014 ◽  
Author(s):  
PAVAN K. ALURI ◽  
PANKAJ JAIN

We show that perturbations generated during the anisotropic pre-inflationary stage of cosmic evolution may affect cosmological observations today for a certain range of parameters. Due to the anisotropic nature of the universe during such early times, it might explain some of the observed signals of large scale anisotropy. In particular, we argue that the alignment of CMB quadrupole and octopole may be explained by the Sachs–Wolfe effect due to the large scale anisotropic modes from very early times of cosmological evolution. We also comment on how the observed dipole modulation of CMB power may be explained within this framework.


2019 ◽  
pp. 138-180
Author(s):  
Douglas Allen

Ever since 9/11 in the US and 26/11 in India, terrorism has been a central concern. Gandhi is generally assumed to be of little value when confronting terrorism today. At best, he is irrelevant; at worst, he is complicit and contributes to the crisis since he opposes necessary violent responses. This essay argues that while Gandhi does not have all of the answers for dealing with terrorism today, he provides us with a complex analysis essential for understanding and responding to the multidimensional structural crisis. After analyzing the nature and meaning of terrorism, we focus on the following topics: Gandhi’s interactions with terrorists; his means-ends analysis and his short-term and long-term preventative approaches to terrorism; his analysis of absolute truth and relative truth in approaching terrorism; and his general analysis of the status of “the other” in transforming our relations with violent, terrorizing, and terrorized others.


1972 ◽  
Vol 44 ◽  
pp. 404-406 ◽  
Author(s):  
J. Pachner

The present short notes on cosmology start with two conclusions based on observational data. The first of them is the well-known conclusion that the Universe from the global point of view is at the present epoch of its evolution in a uniform and isotropic expansion. If we accept the very convincing arguments of Bondi (1962) that the geometry of the cosmic space is Riemannian, its properties are described at the present epoch of the cosmic evolution by the well-known Robertson-Walker metric expressing the cosmological principle (Robertson, 1935, 1936; Walker, 1936). The form of the geodesical lines depends on the assumed theory of gravitation. For instance, in the closed Friedman world model they are cycloids with a singularity at the start of the expansion.


1985 ◽  
Vol 19 (1) ◽  
pp. 713-723
Author(s):  
M. D. Papagiannis ◽  
F. D. Drake ◽  
N. S. Kardashev ◽  
R. D. Brown ◽  
P. Connes ◽  
...  

The possibility that life, primitive or advanced, might exist in other places of the Universe has occupied the minds of scientists and lay-people for thousands of years. It is only in the last 25 years, however, that we have finally begun to search for answers to this profound question using experimental techniques. The goal of Astronomy is to understand the origin and evolution of planets, stars, galaxies and of the Universe as a whole. The appearance of life is an integral part of this whole process and our picture of the Universe will never be complete until we will comprehend also the significance of life in the process of Cosmic Evolution.


2019 ◽  
Vol 5 (5) ◽  
pp. 56-80
Author(s):  
Lok Raj Sharma

The prime objective of this article is to discern rhetorical techniques in US President Barack Obama’s speech “A New Beginning” delivered at Cairo University on Thursday, June 04, 2009 as part of his efforts to improve American relations with the Muslim world by evoking a vision of peace, prosperity, coexistence and cooperation.   Some major sentences or assertions were taken from his speech and were evaluated as analysis which involved rhetorical techniques to persuade his audience. Mr. Obama felt the necessity of removing burning suspicion, mistrust and discord between America and the Muslim World. He proposed a new beginning between the United States and Muslims around the world, based upon mutual interest and mutual respect. He highlighted common principles of justice and progress; and valued the tolerance and the dignity of all human beings. It can be concluded that Mr. Obama’s rhetorical techniques used to persuade his audience were influential and his assertions trustworthy.


2021 ◽  
Vol 21 (10) ◽  
pp. 254
Author(s):  
Zhi-Ying Liu ◽  
Fu-Wen Zhang ◽  
Si-Yuan Zhu

Abstract Gamma-ray bursts (GRBs) are brief, intense, gamma-ray flashes in the universe, lasting from a few milliseconds to a few thousand seconds. For short gamma-ray bursts (sGRBs) with duration less than 2 seconds, the isotropic energy (E iso) function may be more scientifically meaningful and accurately measured than the luminosity (L p) function. In this work we construct, for the first time, the isotropic energy function of sGRBs and estimate their formation rate. First, we derive the L p – E p correlation using 22 sGRBs with known redshifts and well-measured spectra and estimate the pseduo redshifts of 334 Fermi sGRBs. Then, we adopt the Lynden-Bell c − method to study isotropic energy functions and formation rate of sGRBs without any assumption. A strong evolution of isotropic energy E iso ∝ (1+z)5.79 is found, which is comparable to that between L p and z. After removing effect of the cosmic evolution, the isotropic energy function can be reasonably fitted by a broken power law, which is ϕ ( E iso , 0 ) ∝ E iso , 0 − 0.45 for dim sGRBs and ϕ ( E iso , 0 ) ∝ E iso , 0 − 1.11 for bright sGRBs, with the break energy 4.92 × 1049 erg. We obtain the local formation rate of sGRBs is about 17.43 events Gpc−3 yr−1. If assuming a beaming angle is 6° to 26°, the local formation rate including off-axis sGRBs is estimated as ρ 0,all = 155.79 – 3202.35 events Gpc−3 yr−1.


We have considered what might be said about the large-scale distribution of mass in the Universe and in particular whether the mean value might agree with the Einstein-de Sitter cosmological model; what might be said about the composition of the mass as a function of position, and in particular whether we can convince ourselves that exotic matter plays a significant role in some regions; and what might be said about the cosmic evolution of the mass distribution and composition. The present state of our debate is notable for the broad variety of interesting-looking clues and the lack of general agreement on how they might fit together in some general synthesis.


2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
M. Sharif ◽  
Ayesha Ikram

The aim of this paper is to analyze the cosmological evolution of holographic dark energy in f(G,T) gravity (G and T represent the Gauss-Bonnet invariant and trace of the energy-momentum tensor, respectively). We reconstruct f(G,T) model through correspondence scheme using power-law form of the scale factor. The qualitative analysis of the derived model is investigated with the help of evolutionary trajectories of equation of state and deceleration as well as state-finder diagnostic parameters and ωGT-ωGT′ cosmological phase plane. It is found that the equation of state parameter represents phantom epoch of the Universe whereas the deceleration parameter illustrates the accelerated phase. The state-finder plane corresponds to Chaplygin gas model while the freezing region is attained in ωGT-ωGT′ plane.


2017 ◽  
Vol 11 (1) ◽  
pp. 14
Author(s):  
Alexandre Beaudoin Duquette

ResumenConstanza Camelo Suárez es una artista visual de origen colombiano que vive en la provincia de Quebec, en Canadá.  En el año 2008, realizó un performance en una importante estación del metro de la ciudad de Montreal, que llevaba por título Dilatar o contraer el universo.  En el marco de esta intervención, un grupo de inmigrantes guiados por perros lazarillo caminaban con los ojos vendados por los pasaportes de sus países de origen y llevaban puesto en su cintura unos aparatos de los cuales emanaban de manera aleatoria las notas de los himnos nacionales de sus países respectivos, así como las del himno canadiense.  Su acción nos brinda varios elementos que nos permiten cuestionar, romper o relativizar los estereotipos del discurso propagandístico de las instituciones migratorias canadienses.  En el presente trabajo, se trata precisamente de entablar una relación disonante entre el performance y fragmentos de testimonios de Constanza Camelo Suárez y una “historia de éxito” que fue publicada en el sitio Internet del Ministerio de Ciudadanía e Inmigración canadiense en el año 2011 y que lleva por título María Aragón: una joven canadiense de 10 años que causa sensación en YouTube.  Lo anterior se lleva a cabo analizando las siguientes fuentes de disonancia, entendida como la relación entre elementos de información incompatibles: multiculturalismo/transculturalidad, consenso/accidentes situacionales, ocupación del espacio público/espacio masivo ocupado, demostración de fuerza/demostración de vulnerabilidad.Palabras-claves: Arte latinoamericano, diáspora latinoamericana, diáspora colombiana, migración a Canadá, multiculturalismo canadiense, propaganda migratoria. Canadian Multiculturalism face the Art and Testimonies of Constanza Camelo SuárezAbstract Constanza Camelo Suárez is a visual artist of Colombian origin living in the province of Quebec, Canada. In 2008, she performed at an important subway station in the city of Montreal, with the title Dilate or contract the universe. As part of this intervention, a group of immigrants guided by guide dogs walked blindfolded by the passports of their countries of origin and wore on their waist some apparatuses from which emanated random notes of the national anthems of their respective countries, as well as those of the Canadian anthem. Its action gives us several elements that allow us to question, to break or to relativize the stereotypes of the propagandistic discourse of the Canadian migratory institutions. This present work, it is precisely to establish a dissonant relationship between the performance and fragments of testimonies of Constanza Camelo Suárez and a "success story" that was published on the Internet site of the Canadian Citizenship and Immigration Ministry in 2011 and which is titled "María Aragón: a 10-year-old Canadian girl who makes a sensation on YouTube". This is done by analyzing the following sources of dissonance, understood as the relationship between incompatible information elements: Multiculturalism / transculturality, consensus / situational accidents, occupation of public space / mass space occupied, demonstration of strength / demonstration of vulnerability. Key words: Latin American art, Latin American diaspora, Colombian diaspora, migration to Canada, Canadian multiculturalism, migratory propaganda. Multiculturalismo Canadense perante a arte e os Testemunhos de Constanza Camelo SuárezResumoConstanza Camelo Suarez é uma artista visual da Colômbia que vive na província do Quebec, no Canadá. Em 2008, ela realizou uma performance em uma grande estação de metrô da cidade de Montreal, que foi intitulada Expandir ou contrair o universo. Como parte dessa intervenção, um grupo de imigrantes guiado por cães-guia andou com os olhos vendados pelos passaportes de seus países de origem e usava em suas cinturas equipamentos que emanavam notas aleatórias dos hinos nacionais de seus respectivos países, bem como do hino canadense. Sua ação dá-nos vários elementos que nos permitem questionar, relativizar ou romper os estereótipos do discurso propagandístico de instituições de imigração canadense. Neste artigo, trata-se precisamente de demonstrar a relação dissonante entre a performance e fragmentos dos depoimentos de Constanza Camelo Suarez e a "história de sucesso", que foi publicada no site do Ministério da Cidadania e Imigração do Canadá em 2011 e intitulado "María Aragón: uma mulher canadense jovem de 10 anos causou sensação no YouTube". Isto é feito através da análise das seguintes fontes de dissonância, entendida como a relação entre elementos de informação incompatíveis: Multiculturalismo / transculturalidade, consenso / acidentes situacionais, ocupação do espaço público / espaço ocupado, demonstração de força / demonstração de vulnerabilidade.Palavras chave: arte latino-americana, diáspora latino-americana, diáspora colombiana,  migração para o Canadá,  multiculturalismo canadense, propaganda migratória 


Author(s):  
P. J. E. Peebles

An instant landmark on its publication, this book remains the essential introduction to this vital area of research. Written by one of the world's most esteemed theoretical cosmologists, it provides an invaluable historical introduction to the subject, and an enduring overview of key methods, statistical measures, and techniques for dealing with cosmic evolution. With characteristic clarity and insight, the author focuses on the largest known structures — galaxy clusters — weighing the empirical evidence of the nature of clustering and the theories of how it evolves in an expanding universe. A must-have reference for students and researchers alike, this edition introduces a new generation of readers to a classic text in modern cosmology.


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