Results for 'holography'

12 found
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  1. Shifting perspectives: holography and the emergence of technical communities.Sean F. Johnston - 2005 - Technology and Culture 46 (1):77-103.
    Holography, the technology of three-dimensional imaging, has repeatedly been reconceptualised by new communities. Conceived in 1947 as a means of improving electron microscopy, holography was revitalized in the early 1960s by engineer-scientists at classified laboratories. The invention promoted the transformation of a would-be discipline (optical engineering) and spawned limited artist-scientist collaborations. However, a separate artisanal community promoted a distinct countercultural form of holography via a revolutionary technology: the sandbox optical table. Their tools, sponsorship, products, literature and engagement (...)
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  2. Attributing scientific and technological progress: The case of holography.Sean F. Johnston - 2005 - History and Technology 21:367-392.
    Holography, the three-dimensional imaging technology, was portrayed widely as a paradigm of progress during its decade of explosive expansion 1964–73, and during its subsequent consolidation for commercial and artistic uses up to the mid 1980s. An unusually seductive and prolific subject, holography successively spawned scientific insights, putative applications and new constituencies of practitioners and consumers. Waves of forecasts, associated with different sponsors and user communities, cast holography as a field on the verge of success—but with the dimensions (...)
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  3. Absorbing new subjects: holography as an analog of photography.Sean F. Johnston - 2006 - Physics in Perspective 8:164-188.
    I discuss the early history of holography and explore how perceptions, applications, and forecasts of the subject were shaped by prior experience. I focus on the work of Dennis Gabor (1900–1979) in England,Yury N. Denisyuk (1927-2005) in the Soviet Union, and Emmett N. Leith (1927–2005) and Juris Upatnieks (b. 1936) in the United States. I show that the evolution of holography was simultaneously promoted and constrained by its identification as an analog of photography, an association that influenced its (...)
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  4. Dualism and Psychosemantics: Holography and Pansematism in Early Buddhist Philosophy.Federico Divino - 2023 - Comparative Philosophy 14 (2):1-40.
    In the Indian philosophical debate, the relationship between the structure of knowledge and external reality has been a persistent issue. This debate has been particularly prominent in Buddhism, as evidenced by the earliest Buddhist attestations in the Pāli canon, where reality is described as a perceptual defection. The world (loka) is perceived through cognition (citta), and the theme of designation (paññatti) is central to the analysis of the Abhidhamma. Buddhism can be viewed as navigating between nominalism and cognitive normativism, as (...)
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  5. QUANTUM RESONANCE WITH THE MIND: A COMPARATIVE ANALYSIS OF BUDDHISM'S EIGHTH CONSCIOUSNESS, QUANTUM HOLOGRAPHY AND JUNG'S COLLECTIVE UNCONSCIOUS.David Leong - manuscript
    This interdisciplinary exploration discusses the intricate conceptual linkages among Buddhism’s Eighth State of Consciousness, Quantum Holography, and the Jungian Collective Unconscious. Central to this study is examining the Eighth Consciousness in Buddhist thought—a realm that transcends the conventional sensory and mental states to connect with a more universal and profound awareness. Drawing parallels, Quantum Holography posits that every part of the universe retains information about the whole, much like a hologram. This notion seemingly mirrors the Jungian concept of (...)
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  6. Telling tales: George Stroke and the historiography of holography.Sean F. Johnston - 2004 - History and Technology 20:29-51.
    The history of holography, the technology of three-dimensional imaging that grew rapidly during the 1960s, has been written primarily by its historical actors and, like many new inventions, its concepts and activities became surrounded by myths and myth-making. The first historical account was disseminated by the central character of this paper, George W. Stroke, while a professor of Electrical Engineering at the University of Michigan. His claims embroiled several workers active in the field of holography and information processing (...)
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  7. The parallax view: the military origins of holography.Sean F. Johnston - 2009 - In Stefan Rieger & Jens Schroter (eds.), Das Holografische Wissen. Dortmund: Diaphane. pp. 33-57.
    The title of this piece is meant to evoke at least three sources. The first – and perhaps the only obvious one – concerns the ability of holograms to display parallax, a shifting of visual viewpoint that allows a three-dimensional image to reveal background objects behind those in the foreground. This parallax view is a unique feature of holograms as visual media. A second allusion is to the American film The Parallax View (1974, director A. J. Pakula), a rather paranoid (...)
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  8. A historian's view of holography.Sean F. Johnston - 2008 - In H. J. Caulfield & L. Vikram (eds.), New Directions in Holography and Speckle. pp. 3-15.
    On problems and assumptions in the historiography of holography for distinctive social groups engaged in the practice.
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  9. From white elephant to Nobel Prize: Dennis Gabor's wavefront reconstruction.Sean F. Johnston - 2005 - Historical Studies in the Physical and Biological Sciences 36:35-70.
    Dennis Gabor devised a new concept for optical imaging in 1947 that went by a variety of names over the following decade: holoscopy, wavefront reconstruction, interference microscopy, diffraction microscopy and Gaboroscopy. A well-connected and creative research engineer, Gabor worked actively to publicize and exploit his concept, but the scheme failed to capture the interest of many researchers. Gabor’s theory was repeatedly deemed unintuitive and baffling; the technique was appraised by his contemporaries to be of dubious practicality and, at best, constrained (...)
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  10. Why display? Representing holograms in museum collections.Sean F. Johnston - 2009 - In Peter John Turnbull Morris & Klaus B. Staubermann (eds.), Illuminating Instruments. Smithsonian Inst Press. pp. 97-116.
    The actual and potential uses of holograms in museum displays, and the philosophy of knowledge and progress that they represent. Magazine journalists, museum curators, and historians sometimes face similar challenges in making topics or technologies relevant to wider audiences. To varying degrees, they must justify the significance of their subjects of study by identifying a newsworthy slant, a pedagogical role, or an analytical purpose. This chasse au trésor may skew historical story telling itself. In science and technology studies, the problem (...)
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  11. As below, so before: ‘synchronic’ and ‘diachronic’ conceptions of spacetime emergence.Karen Crowther - 2020 - Synthese 198 (8):7279-7307.
    Typically, a less fundamental theory, or structure, emerging from a more fundamental one is an example of synchronic emergence. A model emerging from a prior model upon which it nevertheless depends is an example of diachronic emergence. The case of spacetime emergent from quantum gravity and quantum cosmology challenges these two conceptions of emergence. Here, I propose two more-general conceptions of emergence, analogous to the synchronic and diachronic ones, but which are potentially applicable to the case of emergent spacetime: an (...)
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  12. (1 other version)The Question of Algorithmic Personhood and Being (Or: On the Tenuous Nature of Human Status and Humanity Tests in Virtual Spaces—Why All Souls are ‘Necessarily’ Equal When Considered as Energy).Tyler Jaynes - 2021 - J (2571-8800) 3 (4):452-475.
    What separates the unique nature of human consciousness and that of an entity that can only perceive the world via strict logic-based structures? Rather than assume that there is some potential way in which logic-only existence is non-feasible, our species would be better served by assuming that such sentient existence is feasible. Under this assumption, artificial intelligence systems (AIS), which are creations that run solely upon logic to process data, even with self-learning architectures, should therefore not face the opposition they (...)
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