Results for 'first observations of black holes'

986 found
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  1.  27
    Black holes: do they exist?Edward Malec - 2018 - Philosophical Problems in Science 65:47-59.
    Black holes entered scientific literature as early as at the end of eighteenth century. They had been known at that time as dark stars, but their concept did not find its way to physics or astronomy, and had been abandoned for more than one hundred years. I shall sketch historical developments and discuss present mathematical and observational status of black holes.
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  2.  14
    Some remarks on the first image of a black hole.Sebastian Jan Szybka - 2020 - Philosophical Problems in Science 68:281-294.
    On the 10th of April, 2019 the Event Horizon Telescope Collaboration presented the first image of the black hole. The image was obtained with a planet-scale array of eight ground-based radio telescopes. The observation relied on a technique called very long base interferometry which synchronises telescope facilities around the world. The image of a black hole together with the recent detections of gravitational waves confirms one of the most intriguing predictions of Einstein’s gravity theory, namely, the existence (...)
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  3.  60
    Interior of a Schwarzschild Black Hole Revisited.Rosa Doran, Francisco S. N. Lobo & Paulo Crawford - 2008 - Foundations of Physics 38 (2):160-187.
    The Schwarzschild solution has played a fundamental conceptual role in general relativity, and beyond, for instance, regarding event horizons, spacetime singularities and aspects of quantum field theory in curved spacetimes. However, one still encounters the existence of misconceptions and a certain ambiguity inherent in the Schwarzschild solution in the literature. By taking into account the point of view of an observer in the interior of the event horizon, one verifies that new conceptual difficulties arise. In this work, besides providing a (...)
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  4.  12
    Primordial Black Holes from Collapsing Antimatter.Gábor Etesi - 2022 - Foundations of Science 27 (4):1381-1400.
    In this paper a simple (i.e. free of fine-tuning, etc.) new mechanism for primordial black hole formation based on the collapse of large antimatter systems in the early Universe is introduced. A peculiarity of this process is that, compared to their material counterparts, the collapse of large antimatter systems takes much less time due to the reversed thermodynamics of antimatter, an idea which has been proposed in our earlier paper Etesi (2021). This model has several testable predictions. The (...) is that the photon-baryon ratio is roughly computable and is equal to \(3.03\times 10^9\) which is quite close to its experimentally confirmed value. The second is that the mass of black holes arising from this mechanism is at least \(10^5\) - \(10^6M_\odot\) hence they contribute to the super- or hypermassive end of the primordial black hole mass spectrum. The third prediction is that these sort of primordial black holes constitute at least \(20\%\) of dark matter. Last but not least the observed current asymmetry of matter and antimatter, even if their presence in the Universe was symmetric in the beginning, acquires a natural explanation, too. (shrink)
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  5.  17
    Black Hole Perturbations: A Review of Recent Analytical Results. [REVIEW]Donato Bini & Andrea Geralico - 2018 - Foundations of Physics 48 (10):1349-1363.
    We review the gravitational self-force program to analytically compute first-order metric perturbations in a Schwarzschild black hole spacetime in the case of a perturbing mass moving on a slightly eccentric equatorial orbit. The perturbed metric components should then be combined into gauge-invariant quantities to be associated with physical observables. In this way, for example, one determines the various “potentials” entering the Effective-One-Body model, i.e., a powerful formalism for the description of the gravitational interaction of two masses, which is (...)
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  6.  75
    The Milky Way’s Supermassive Black Hole: How Good a Case Is It?: A Challenge for Astrophysics & Philosophy of Science.Andreas Eckart, Andreas Hüttemann, Claus Kiefer, Silke Britzen, Michal Zajaček, Claus Lämmerzahl, Manfred Stöckler, Monica Valencia-S., Vladimir Karas & Macarena García-Marín - 2017 - Foundations of Physics 47 (5):553-624.
    The compact and, with \ M\, very massive object located at the center of the Milky Way is currently the very best candidate for a supermassive black hole in our immediate vicinity. The strongest evidence for this is provided by measurements of stellar orbits, variable X-ray emission, and strongly variable polarized near-infrared emission from the location of the radio source Sagittarius A* in the middle of the central stellar cluster. Simultaneous near-infrared and X-ray observations of SgrA* have revealed (...)
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  7. Black Hole Coalescence: Observation and Model Validation.Jamee Elder - 2023 - In Lydia Patton & Erik Curiel (eds.), Working Toward Solutions in Fluid Dynamics and Astrophysics: What the Equations Don’t Say. Springer Verlag. pp. 79-104.
    This paper will discuss the recent LIGO-Virgo observations of gravitational waves and the binary black hole mergers that produce them. These observations rely on having prior knowledge of the dynamical behaviour of binary black hole systems, as governed by the Einstein Field Equations (EFEs). However, we currently lack any exact, analytic solutions to the EFEs describing such systems. In the absence of such solutions, a range of modelling approaches are used to mediate between the dynamical equations (...)
     
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  8.  48
    Interactions and the Consistency of Black Hole Complementarity.Peter Bokulich - 2011 - International Studies in the Philosophy of Science 25 (4):371-386.
    Presentations of black hole complementarity by van Dongen and de Haro, as well as by 't Hooft, suffer from a mistaken claim that interactions between matter falling into a black hole and the emitted Hawking-like radiation should lead to a failure of commutativity between space-like-related observables localized inside and outside the black hole. I show that this conclusion is not supported by our standard understanding of quantum interactions. We have no reason to believe that near-horizon interactions will (...)
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  9.  12
    A Short History of the Discovery of Black Holes.Martin Braddock - 2021 - Studia Humana 10 (1):51-54.
    The concept of black holes or completely collapsed gravitational objects as they were originally called has fascinated the scientific community and writers of science fiction for centuries. The mathematical proof of the existence of black holes came from the collation of multiple lines of evidence, some of which were highly debated and was derived from both indirect and direct sources. The measurement of gravitational waves and the observation of a black hole represent one of the (...)
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  10.  5
    Beyond the Quantum Membrane Paradigm: A Philosophical Analysis of the Structure of Black Holes in Full QG.Enrico Cinti & Marco Sanchioni - 2024 - Foundations of Physics 54 (3):1-23.
    This paper presents a philosophical analysis of the structure of black holes, focusing on the event horizon and its fundamental status. While black holes have been at the centre of countless paradoxes arising from the attempt to merge quantum mechanics and general relativity, recent experimental discoveries have emphasised their importance as objects for the development of Quantum Gravity. In particular, the statistical mechanical underpinning of black hole thermodynamics has been a central research topic. The Quantum (...)
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  11. Black Hole Thermodynamics: More Than an Analogy?John Dougherty & Craig Callender - unknown
    Black hole thermodynamics is regarded as one of the deepest clues we have to a quantum theory of gravity. It motivates scores of proposals in the field, from the thought that the world is a hologram to calculations in string theory. The rationale for BHT playing this important role, and for much of BHT itself, originates in the analogy between black hole behavior and ordinary thermodynamic systems. Claiming the relationship is “more than a formal analogy,” black (...) are said to be governed by deep thermodynamic principles: what causes your tea to come to room temperature is said additionally to cause the area of black holes to increase. Playing the role of philosophical gadfly, we pour a little cold water on the claim that BHT is more than a formal analogy. First, we show that BHT is often based on a kind of caricature of thermodynamics. Second, we point out an important ambiguity in what systems the analogy is supposed to govern, local or global ones. Finally, and perhaps worst, we point out that one of the primary motivations for the theory arises from a terribly controversial understanding of entropy. BHT may be a useful guide to future physics. Only time will tell. But the analogy is not nearly as good as is commonly supposed. (shrink)
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  12.  39
    Like Black Holes in the Sky: The Warped Epistemology of Conspiracy Theories.Maarten Boudry - unknown
    What, if anything, is wrong with conspiracy theories? A conspiracy refers to a group of people acting in secret to achieve some nefarious goal. But given that the pages of history are full of such plots, why are CTs regarded with suspicion? Just like with the traditional demarcation problem, philosophers disagree about where to draw the line between legitimate hypotheses about conspiracies and unfounded ‘conspiracy theories’. Some believe that there is no such demarcation line to be drawn, that each CT (...)
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  13.  66
    Why Black Hole Information Loss is Paradoxical.David Wallace - unknown
    I distinguish between two versions of the black hole information-loss paradox. The first arises from apparent failure of unitarity on the spacetime of a completely evaporating black hole, which appears to be non-globally-hyperbolic; this is the most commonly discussed version of the paradox in the foundational and semipopular literature, and the case for calling it `paradoxical' is less than compelling. But the second arises from a clash between a fully-statistical-mechanical interpretation of black hole evaporation and the (...)
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  14.  29
    On the Epistemology of Observational Black Hole Astrophysics.Juliusz Doboszewski & Dennis Lehmkuhl - 2023 - In Nora Mills Boyd, Siska De Baerdemaeker, Kevin Heng & Vera Matarese (eds.), Philosophy of Astrophysics: Stars, Simulations, and the Struggle to Determine What is Out There. Springer Verlag. pp. 225-2147483647.
    We discuss three philosophically interesting epistemic peculiarities of black hole astrophysics: (1) issues concerning whether and in what sense black holes do exist; (2) how to best approach multiplicity of available definitions of black holes; (3) short (i.e., accessible within an individual human lifespan) dynamical timescales present in many of the recent, as well as prospective, observations involving black holes. In each case we argue that the prospects for our epistemic situation are (...)
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  15.  35
    Black Holes as Atoms.Jarmo Mäkelä - 2002 - Foundations of Physics 32 (12):1809-1849.
    Stationary spacetimes containing a black hole have several properties akin to those of atoms. For instance, such spacetimes have only three classical degrees of freedom, or observables, which may be taken to be the mass, the angular momentum, and the electric charge of the hole. There are several arguments supporting a proposal originally made by Bekenstein that quantization of these classical degrees of freedom gives an equal spacing for the horizon area spectrum of black holes. We review (...)
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  16.  41
    A Brief History of Time From The Big Bang to Black Holes.Stephen W. Hawking - 2020 - Bantam.
    A Brief History of Time: From the Big Bang to Black Holes is a popular-science book on cosmology (the study of the origin and evolution of the universe) by British physicist Stephen Hawking. It was first published in 1988. Hawking wrote the book for readers who have no prior knowledge of the universe and people who are interested in learning.
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  17.  23
    Probing the Strong (Stationary) Gravitational Field of Accreting Black Holes with X-ray Observations.Luigi Stella - 2018 - Foundations of Physics 48 (10):1500-1516.
    High throughput time-resolved observations of accreting collapsed objects at X-ray energies provide key information on the motions of matter orbiting a few gravitational radii away from black holes. Predictions of general relativity in the strong field regime, such as relativistic epicyclic motions, precession, light bending and the presence and radius of an innermost stable circular orbit in the close vicinity of a black hole can be verified by making use of two powerful diagnostics, namely relativistically broadened (...)
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  18.  3
    Black Hole Entropy from Non-dirichlet Sectors, and a Bounce Solution.I. Y. Park - 2023 - Foundations of Physics 53 (4):1-21.
    The relevance of gravitational boundary degrees of freedom and their dynamics in gravity quantization and black hole information has been explored in a series of recent works. In this work we further progress by focusing keenly on the genuine gravitational boundary degrees of freedom as the origin of black hole entropy. Wald’s entropy formula is scrutinized, and the reason that Wald’s formula correctly captures the entropy of a black hole examined. Afterwards, limitations of Wald’s method are discussed; (...)
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  19.  32
    Black Hole Unitarity and Antipodal Entanglement.Gerard ’T. Hooft - 2016 - Foundations of Physics 46 (9):1185-1198.
    Hawking particles emitted by a black hole are usually found to have thermal spectra, if not exactly, then by a very good approximation. Here, we argue differently. It was discovered that spherical partial waves of in-going and out-going matter can be described by unitary evolution operators independently, which allows for studies of space-time properties that were not possible before. Unitarity dictates space-time, as seen by a distant observer, to be topologically non-trivial. Consequently, Hawking particles are only locally thermal, but (...)
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  20.  45
    Black holes and revelations: Michel Henry and jean‐luc Marion on the aesthetics of the invisible.Peter Joseph Fritz - 2009 - Modern Theology 25 (3):415-440.
    This essay examines how Michel Henry's and Jean‐Luc Marion's continuation of phenomenology's turn to the invisible relates to painting, aesthetics, and theology. First, it discusses Henry and Marion's redefinition of phenomenality. Second, it explores Henry's “Kandinskian” description of abstract painting as expressing “Life.” Third, it explicates Marion's “Rothkoian” rehabilitation of the idol and renewed zeal for the icon—both phenomena exemplify “givenness.” Fourth, it unpacks my thesis: Henry's phenomenology, theologically applied, exercises an inadequate Kantian apophasis, characterized by a sublime sacrifice (...)
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  21.  4
    Analogue Gravity Phenomenology: Analogue Spacetimes and Horizons, from Theory to Experiment.Francesco Belgiorno, Sergio Cacciatori, Daniele Faccio, Vittorio Gorini, Stefano Liberati & Ugo Moschella (eds.) - 2013 - Cham: Imprint: Springer.
    Analogue Gravity Phenomenology is a collection of contributions that cover a vast range of areas in physics, ranging from surface wave propagation in fluids to nonlinear optics. The underlying common aspect of all these topics, and hence the main focus and perspective from which they are explained here, is the attempt to develop analogue models for gravitational systems. The original and main motivation of the field is the verification and study of Hawking radiation from a horizon: the enabling feature is (...)
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  22.  3
    Spooky action at a distance: the phenomenon that reimagines space and time--and what it means for black holes, the big bang, and theories of everything.George Musser - 2015 - New York: Scientific American/Farrar, Straus and Giroux.
    What is space? It isn't a question that most of us normally stop to ask. Space is the venue of physics; it's where things exist, where they move and take shape. Yet over the past few decades, physicists have discovered a phenomenon that operates outside the confines of space and time. The phenomenon-the ability of one particle to affect another instantly across the vastness of space-appears to be almost magical. Einstein grappled with this oddity and couldn't quite resolve it, describing (...)
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  23.  50
    Quantum Non-Gravity and Stellar Collapse.C. Barceló, L. J. Garay & G. Jannes - 2011 - Foundations of Physics 41 (9):1532-1541.
    Observational indications combined with analyses of analogue and emergent gravity in condensed matter systems support the possibility that there might be two distinct energy scales related to quantum gravity: the scale that sets the onset of quantum gravitational effects $E_{\rm B}$ (related to the Planck scale) and the much higher scale $E_{\rm L}$ signalling the breaking of Lorentz symmetry. We suggest a natural interpretation for these two scales: $E_{\rm L}$ is the energy scale below which a special relativistic spacetime emerges, (...)
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  24. Cosmic intelligence and Black holes.Vladimir A. Lefebvre & Yuri N. Efremov - 2008 - World Futures 64 (8):563 – 576.
    We propose that black holes may serve as a physical substratum for intelligent beings, based on(1) The descriptions of brain and psyche are complementary to each other, as internal and external observers of a black hole in the Susskind-t'Hooft's schema.(2) There is an aspect of the inner structure of a black hole that is isomorphic to the structure of the human subjective domain in the psychological model of reflexion.(3) Both black holes and the brain-psyche (...)
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  25.  29
    Coincidence and reproducibility in the EHT black hole experiment.Galina Weinstein - 2021 - Studies in History and Philosophy of Science Part A 85:63-78.
    This paper discusses some philosophical aspects related to the recent publication of the experimental results of the 2017 black hole experiment, namely the first image of the supermassive black hole at the center of galaxy M87. In this paper I present a philosophical analysis of the 2017 Event Horizon Telescope (EHT) black hole experiment. I first present Hacking’s philosophy of experimentation. Hacking gives his taxonomy of elements of laboratory science and distinguishes a list of elements. (...)
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  26.  16
    Spacetime physics.Edwin F. Taylor - 1966 - San Francisco,: W. H. Freeman. Edited by John Archibald Wheeler.
    Collaboration on the First Edition of Spacetime Physics began in the mid-1960s when Edwin Taylor took a junior faculty sabbatical at Princeton University where John Wheeler was a professor. The resulting text emphasized the unity of spacetime and those quantities (such as proper time, proper distance, mass) that are invariant, the same for all observers, rather than those quantities (such as space and time separations) that are relative, different for different observers. The book has become a standard introduction to (...)
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  27.  25
    Measuring the Last Burst of Non-singular Black Holes.Francesca Vidotto - 2018 - Foundations of Physics 48 (10):1380-1392.
    Non-perturbative quantum gravity prevents the formation of curvature singularities and may allow black holes to decay with a lifetime shorter than evaporation time. This, in connection with the existence of primordial black holes, could open a new window for quantum-gravity phenomenology. I discuss the possibility of observing astrophysical emissions from the explosion of old black holes in the radio and in the gamma wavelengths. These emissions can be discriminated from other astrophysical sources because of (...)
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  28.  44
    Philosophy of Astrophysics: Stars, Simulations, and the Struggle to Determine What is Out There.Nora Mills Boyd, Siska De Baerdemaeker, Kevin Heng & Vera Matarese (eds.) - 2023 - Springer Verlag.
    This is an open access book. This book, the first edited collection of its kind, explores the recent emergence of philosophical research in astrophysics. It assembles a variety of original essays from scholars who are currently shaping this field, and it combines insightful overviews of the current state of play with novel, significant contributions. It therefore provides an ideal source for understanding the current debates in philosophy of astrophysics, and it offers new ideas for future cutting-edge research. The selection (...)
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  29.  10
    Technological tattletales and constitutional black holes: communications intermediaries and constitutional constraints.Lisa M. Austin - 2016 - Theoretical Inquiries in Law 17 (2):451-485.
    In this Article I argue that the emerging public/private nexus of surveillance involves the augmentation of state power and calls for new models of constitutional constraint. The key phenomenon is the role played by communications intermediaries in collecting the information that the state subsequently accesses. These intermediaries are not just powerful companies engaged in collecting and analyzing the information of users and the information they hold are not just business records. The key feature of these companies is that, through their (...)
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  30.  11
    A Set-Theoretic Analysis of the Black Hole Entropy Puzzle.Gábor Etesi - 2023 - Foundations of Physics 54 (1):1-28.
    Motivated by the known mathematical and physical problems arising from the current mathematical formalization of the physical spatio-temporal continuum, as a substantial technical clarification of our earlier attempt (Etesi in Found Sci 25:327–340, 2020), the aim in this paper is twofold. Firstly, by interpreting Chaitin’s variant of Gödel’s first incompleteness theorem as an inherent uncertainty or fuzziness present in the set of real numbers, a set-theoretic entropy is assigned to it using the Kullback–Leibler relative entropy of a pair of (...)
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  31. THIS IS NICE OF YOU. Introduction by Ben Segal.Gary Lutz - 2011 - Continent 1 (1):43-51.
    Reproduced with the kind permission of the author. Currently available in the collection I Looked Alive . © 2010 The Brooklyn Rail/Black Square Editions | ISBN 978-1934029-07-7 Originally published 2003 Four Walls Eight Windows. continent. 1.1 (2011): 43-51. Introduction Ben Segal What interests me is instigated language, language dishabituated from its ordinary doings, language startled by itself. I don't know where that sort of interest locates me, or leaves me, but a lot of the books I see in the (...)
     
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  32.  63
    Extended Scale Relativity, p-Loop Harmonic Oscillator, and Logarithmic Corrections to the Black Hole Entropy.Carlos Castro & Alex Granik - 2003 - Foundations of Physics 33 (3):445-466.
    An extended scale relativity theory, actively developed by one of the authors, incorporates Nottale's scale relativity principle where the Planck scale is the minimum impassible invariant scale in Nature, and the use of polyvector-valued coordinates in C-spaces (Clifford manifolds) where all lengths, areas, volumes⋅ are treated on equal footing. We study the generalization of the ordinary point-particle quantum mechanical oscillator to the p-loop (a closed p-brane) case in C-spaces. Its solution exhibits some novel features: an emergence of two explicit scales (...)
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  33.  64
    Signatures of Noncommutative Geometry in Muon Decay for Nonsymmetric Gravity.Dinesh Singh, Nader Mobed & Pierre-Philippe Ouimet - 2010 - Foundations of Physics 40 (12):1789-1799.
    It is shown how to identify potential signatures of noncommutative geometry within the decay spectrum of a muon in orbit near the event horizon of a microscopic Schwarzschild black hole. This possibility follows from a re-interpretation of Moffat’s nonsymmetric theory of gravity, first published in Phys. Rev. D 19:3554, 1979, where the antisymmetric part of the metric tensor manifests the hypothesized noncommutative geometric structure throughout the manifold. It is further shown that for a given sign convention, the predicted (...)
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  34.  15
    On a Possibly Pure Set-Theoretic Contribution to Black Hole Entropy.Gábor Etesi - 2020 - Foundations of Science 25 (2):327-340.
    Continuity as appears to us immediately by intuition differs from its current formalization, the arithmetical continuum or equivalently the set of real numbers used in modern mathematical analysis. Motivated by the known mathematical and physical problems arising from this formalization of the continuum, our aim in this paper is twofold. Firstly, by interpreting Chaitin’s variant of Gödel’s first incompleteness theorem as an inherent uncertainty or fuzziness of the arithmetical continuum, a formal set-theoretic entropy is assigned to the arithmetical continuum. (...)
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  35.  49
    The unity of science.Rudolf Carnap & Max Black - 1934 - London,: K. Paul, Trench, Trubner & co.. Edited by Max Black.
    As a leading member of the Vienna Circle, Rudolph Carnap's aim was to bring about a "unified science" by applying a method of logical analysis to the empirical data of all the sciences. This work, first published in English in 1934, endeavors to work out a way in which the observation statements required for verification are not private to the observer. The work shows the strong influence of Wittgenstein, Russell, and Frege.
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  36.  21
    A pulsar model from an oscillating black hole.Mendel Sachs - 1982 - Foundations of Physics 12 (7):689-708.
    The first part of this paper examines conditions in accord with Einstein's criterion of regularity on the field solutions everywhere that would correspond to the existence of a black hole star, following from solutions of his (nonvacuum) field equations. ‘Black hole’ is defined here as a star whose matter is so condensed as to correspond to a complete family of spatially closed geodesics. The condition imposed is that the angular momentum of a test body in each of (...)
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  37.  28
    The case of holography among Media Studies, art and science.Pier Luigi Capucci - 2012 - Technoetic Arts 9 (2-3):247-253.
    In the last few years holography has celebrated some important anniversaries: in 2010 the 50th anniversary of the light amplification by stimulated emission of radiation (LASER) invention; in 2011 the 40th anniversary of the Nobel Prize awarded to the Hungarian scientist Dennis Gabor for inventing holography and in 2012 the 50th anniversary of the first holograms. Holography can create an accurate visual simulation, with total parallax: a replica of the real object made of light, which has the real object’s (...)
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  38.  29
    Cultural history, the possible, and the principle of plenitude1.Hannu Salmi - 2011 - History and Theory 50 (2):171-187.
    Cultural historical research has deliberately challenged “historical realism,” the view that history is comprised entirely of observable actions that actually occurred, and instead has emphasized the historical significance of thoughts, emotions, and representations; it has also focused on the invisible, the momentary, and the perishable. These latter elements introduce the notion of the possible in history. This article examines the ways in which cultural history has approached the notion of the possible, as well as the methodological and theoretical implications of (...)
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  39.  79
    Contours of Black Political Thought: An Introduction and Perspective.Michael Hanchard - 2010 - Political Theory 38 (4):510-536.
    This essay aims to demonstrate how attention to black political thought might expand and complicate our understanding of modern politics and the conceptualization of the political in contemporary political theory, and in modern politics more generally. Black political thought can be viewed as the attempt to develop a set of critical tools to help explain the political distinctiveness of black life-worlds and how this distinctiveness is structured by a series of relations between individual and community, self and (...)
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  40.  12
    Business cycles and black holes.Clifford F. Thies - 1991 - Critical Review: A Journal of Politics and Society 5 (2):291-299.
    Real business cycle theory, as exemplified by Fischer Black's Business Cycles and Equilibrium, posits that business cycles are due to random?technology shocks,? and not to monetary, fiscal or other government policies. Rational expectations and complete markets are supposed to enable decision makers to avoid the costly mistakes that would otherwise result from policies that distort incentives to borrow and invest. This paper questions the assumptions of rational expectations and complete markets from an Austrian?school perspective. It argues that decision makers (...)
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  41.  1
    II Are There Black Holes In Logic?George Myro - 1988 - The Monist 71 (3):365-376.
    Professor Bernstein’s paper raises enough issues for a dozen commentaries. This is my first difficulty, for I can give at most one. Nevertheless, I regard the fact that the paper does raise all these many issues a very great virtue of it. The thinking which it provokes is very rewarding. I have learned a great deal from it.
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  42.  23
    B Flach! B Flach!Myroslav Laiuk & Ali Kinsella - 2023 - Common Knowledge 29 (1):1-20.
    Don't tell terrible stories—everyone here has enough of their own. Everyone here has a whole bloody sack of terrible stories, and at the bottom of the sack is a hammer the narrator uses to pound you on the skull the instant you dare not believe your ears. Or to pound you when you do believe. Not long ago I saw a tomboyish girl on Khreshchatyk Street demand money of an elderly woman, threatening to bite her and infect her with syphilis. (...)
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  43. Aesthetics in the 21st Century: Walter Derungs & Oliver Minder.Peter Burleigh - 2012 - Continent 2 (4):237-243.
    Located in Kleinbasel close to the Rhine, the Kaskadenkondensator is a place of mediation and experimental, research-and process-based art production with a focus on performance and performative expression. The gallery, founded in 1994, and located on the third floor of the former Sudhaus Warteck Brewery (hence cascade condenser), seeks to develop interactions between artists, theorists and audiences. Eight, maybe, nine or ten 40 litre bags of potting compost lie strewn about the floor of a high-ceilinged white washed hall. Dumped, split (...)
     
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  44.  29
    Shuttling Between Depictive Models and Abstract Rules: Induction and Fallback.Daniel L. Schwartz & John B. Black - 1996 - Cognitive Science 20 (4):457-497.
    A productive way to think about imagistic mental models of physical systems is as though they were sources of quasi‐empirical evidence. People depict or imagine events at those points in time when they would experiment with the world if possible. Moreover, just as they would do when observing the world, people induce patterns of behavior from the results depicted in their imaginations. These resulting patterns of behavior can then be cast into symbolic rules to simplify thinking about future problems and (...)
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  45.  19
    The State and Future of Black Women's Studies: The Black Women's Studies Association and the National Women's Studies Association in Conversation.Nneka D. Dennie - 2021 - Feminist Studies 47 (1):230-237.
    In lieu of an abstract, here is a brief excerpt of the content:230 Feminist Studies 47, no. 1. © 2021 by Feminist Studies, Inc. Nneka D. Dennie The State and Future of Black Women’s Studies: The Black Women’s Studies Association and the National Women’s Studies Association in Conversation On February 25, 2021, the Black Women’s Studies Association (BWSA) and National Women’s Studies Association (NWSA) partnered for one of NWSA’s Kitchen Table Talks—a new initiative spearheaded by NWSA President (...)
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  46.  15
    The Dharma of Justice in the Sanskrit Epics: Debates on Gender, Varna, and Species by Ruth Vanita. [REVIEW]Brian Black - 2023 - Philosophy East and West 73 (3):1-4.
    In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Dharma of Justice in the Sanskrit Epics: Debates on Gender, Varna, and Species by Ruth VanitaBrian Black (bio)The Dharma of Justice in the Sanskrit Epics: Debates on Gender, Varna, and Species. By Ruth Vanita. Oxford: Oxford Unity Press, 2021. Pp. 298. Hardcover £70.00, isbn 978-0-19-285982-2. Ruth Vanita's The Dharma of Justice in the Sanskrit Epics: Debates on Gender, Varna, and Species examines how the Mahābhārata and (...)
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  47.  13
    Theory Testing in Gravitational-Wave Astrophysics.Jamee Elder - 2023 - In Nora Mills Boyd, Siska De Baerdemaeker, Kevin Heng & Vera Matarese (eds.), Philosophy of Astrophysics: Stars, Simulations, and the Struggle to Determine What is Out There. Springer Verlag. pp. 2147483647-2147483647.
    The LIGO-Virgo Collaboration achieved the first ‘direct detection’ of gravitational waves in 2015, opening a new “window” for observing the universe. Since this first detection (‘GW150914’), dozens of detections have followed, mostly produced by binary black hole mergers. However, the theory-ladenness of the LIGO-Virgo methods for observing these events leads to a potentially-vicious circularity, where general relativistic assumptions may serve to mask phenomena that are inconsistent with general relativity (GR). Under such circumstances, the fact that GR can (...)
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  48.  4
    Five Poems.Amit Majmudar - 2019 - Arion 27 (1):105-111.
    In lieu of an abstract, here is a brief excerpt of the content:Five Poems AMIT MAJMUDAR Observing Orpheus I hear the meaning turn back in his throat like Eurydice on the way up from the darkness. Music’s meaning is its making. As for me, I am one more animal in his entourage, learning a new thirst, finding a new south. None of us knew we had this instinct in us. If deserts hide wildflowers until first rain, bright ears are (...)
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  49.  14
    Are Borders Inside or Outside?Arturo Tozzi - 2022 - Foundations of Science 27 (2):489-505.
    When a boat disappears over the horizon, does a distant observer detect the last moment in which the boat is visible, or the first moment in which the boat is not visible? This apparently ludicrous way of reasoning, heritage of long-lasting medieval debates on decision limit problems, paves the way to sophisticated contemporary debates concerning the methodological core of mathematics, physics and biology. These ancient, logically-framed conundrums throw us into the realm of bounded objects with fuzzy edges, where our (...)
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    White Hole existence on the inverse universe.Shunji Mitsuyoshi, Eigo Shintani, Kosuke Tomonaga & Yuichi Tei - 2022 - Science and Philosophy 10 (2):67-78.
    The existence of White Hole (WH) has been suggested by Schwarzschild solution to the Einstein field equation as a time-reversed Black Hole (BH), besides there has not been observational evidence for their existence yet. Our idea of the “inverse universe”, in which we introduce the time-reversed kinematics as another geometric state, can explain that WH should appear in such a geometry after a matter falls into a BH. In this work, we present a new operation for WH conversion from (...)
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