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Meeting the Universe Halfway is an ambitious book with far-reaching implications for numerous fields in the natural sciences, social sciences, and humanities. In this volume, Karen Barad, theoretical physicist and feminist theorist, elaborates her theory of agential realism. Offering an account of the world as a whole rather than as composed of separate natural and social realms, agential realism is at once a new epistemology, ontology, and ethics. The starting point for Barad’s analysis is the philosophical framework of quantum physicist Niels Bohr. Barad extends and partially revises Bohr’s philosophical views in light of current scholarship in physics, science studies, and the philosophy of science as well as feminist, poststructuralist, and other critical social theories. In the process, she significantly reworks understandings of space, time, matter, causality, agency, subjectivity, and objectivity.
In an agential realist account, the world is made of entanglements of “social” and “natural” agencies, where the distinction between the two emerges out of specific intra-actions. Intra-activity is an inexhaustible dynamism that configures and reconfigures relations of space-time-matter. In explaining intra-activity, Barad reveals questions about how nature and culture interact and change over time to be fundamentally misguided. And she reframes understanding of the nature of scientific and political practices and their “interrelationship.” Thus she pays particular attention to the responsible practice of science, and she emphasizes changes in the understanding of political practices, critically reworking Judith Butler’s influential theory of performativity. Finally, Barad uses agential realism to produce a new interpretation of quantum physics, demonstrating that agential realism is more than a means of reflecting on science; it can be used to actually do science.

kwantumleer --- Quantum mechanics. Quantumfield theory --- Philosophy of science --- Science --- #SBIB:316.23H2 --- #SBIB:316.23H3 --- #SBIB:1H40 --- Sociologie van de wetenschappen --- Wijsgerige grondslagen en discussie in de sociologie --- Epistemologie, methoden in de filosofie --- Physics --- Quantum theory --- Heisenberg uncertainty principle --- Realism --- Relativity (Physics) --- Matter --- Philosophy. --- Gravitation --- Nonrelativistic quantum mechanics --- Space and time --- Empiricism --- Philosophy --- Universals (Philosophy) --- Conceptualism --- Dualism --- Idealism --- Materialism --- Nominalism --- Positivism --- Rationalism --- Indeterminancy principle --- Uncertainty principle --- 694 --- Esthetica en filosofie --- Théorie quantique --- Matière --- Rapports sociaux --- Book --- Epistemology

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Space and time --- Causality (Physics) --- Quantum theory --- Physics --- Philosophy --- -Quantum theory --- #GROL:SEMI-113:5 --- Space of more than three dimensions --- Space-time --- Space-time continuum --- Space-times --- Spacetime --- Time and space --- Fourth dimension --- Infinite --- Metaphysics --- Space sciences --- Time --- Beginning --- Hyperspace --- Relativity (Physics) --- Quantum dynamics --- Quantum mechanics --- Quantum physics --- Mechanics --- Thermodynamics --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Causality --- Heisenberg uncertainty principle --- Nuclear physics --- Quantum theory. --- Space and time. --- Philosophy. --- Causality (Physics). --- History of physics --- Quantum mechanics. Quantumfield theory --- Physics - Philosophy

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Philosophy of science --- Causality (Physics) --- Entropy --- Science --- Space and time --- Causality --- Heisenberg uncertainty principle --- Nuclear physics --- Physics --- Quantum theory --- Space of more than three dimensions --- Space-time --- Space-time continuum --- Space-times --- Spacetime --- Time and space --- Fourth dimension --- Infinite --- Metaphysics --- Philosophy --- Space sciences --- Time --- Beginning --- Hyperspace --- Relativity (Physics) --- Normal science --- Thermodynamics --- Space and time. --- Philosophy. --- Causality (Physics). --- Entropy. --- Science - Philosophy. --- Causalité (physique) --- Entropie --- Espace et temps --- Philosophie des sciences --- Processus irréversibles --- Temps (philosophie)

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"Optics--a field of physics focusing on the study of light--is also central to many areas of biology, including vision, ecology, botany, animal behavior, neurobiology, and molecular biology. The Optics of Life introduces the fundamentals of optics to biologists and non-physicists, giving them the tools they need to successfully incorporate optical measurements and principles into their research. S©œnke Johnsen starts with the basics, describing the properties of light and the units and geometry of measurement. He then explores how light is created and propagates and how it interacts with matter, covering topics such as absorption, scattering, fluorescence, and polarization. Johnsen also provides a tutorial on how to measure light as well as an informative discussion of quantum mechanics. The Optics of Life features a host of examples drawn from nature and everyday life, and several appendixes that offer further practical guidance for researchers. This concise book uses a minimum of equations and jargon, explaining the basic physics of light in a succinct and lively manner. It is the essential primer for working biologists and for anyone seeking an accessible introduction to optics"--

Photobiology. --- Physiological optics. --- Polarization (Light) --- Rotation of the plane of polarization --- Optics, Physiological --- Optical Phenomena. --- Light. --- Electromagnetic waves --- Optics --- Wave-motion, Theory of --- Optical rotation --- Stereochemistry --- Vision --- Biology --- Light --- Photochemistry --- Polarization --- Visible Radiation --- Light, Visible --- Photoradiation --- Radiation, Visible --- Photoradiations --- Radiations, Visible --- Visible Light --- Visible Radiations --- Photobiology --- Optical Phenomenon --- Optical Process --- Optical Concepts --- Optical Processes --- Concept, Optical --- Concepts, Optical --- Optical Concept --- Phenomena, Optical --- Phenomenon, Optical --- Process, Optical --- Processes, Optical --- Optics. Quantum optics --- Ophthalmology --- Physiological optics --- Light sources --- Spectrum analysis --- absorption. --- animal vision. --- bioluminescence. --- coherent scattering. --- color. --- elastic scattering. --- electric field. --- electrons. --- fluorescence. --- geometry. --- human vision. --- inelastic scattering. --- integrated measurements. --- irradiance. --- light emission. --- light measurement. --- light. --- luminescence. --- lux. --- magnetic field. --- matter. --- mechanoluminescence. --- optical energy. --- optical measurements. --- optics. --- particles. --- phosphorescence. --- photon energy. --- photons. --- photosynthetically active radiation. --- polarization. --- polarized light. --- quantum entanglement. --- quantum mechanics. --- radiance. --- reflection. --- refraction. --- scattering. --- single scattering. --- sonoluminescence. --- spectra. --- spectral measurements. --- spectrometers. --- spectroradiometer. --- sun. --- thermal radiation. --- two-slit interference. --- uncertainty principle. --- units. --- wave interference. --- wave-particle duality. --- wavelength. --- waves.