Results for 'Planets Orbits'

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  1. Ecological Orbits: How Planets Move and Populations Grow.Lev Ginzburg & Mark Colyvan - unknown
    The main focus of the book is the presentation of the 'inertial' view of population growth. This view provides a rather simple model for complex population dynamics, and is achieved at the level of the single species without invoking species interactions. An important part of this account is the maternal effect. Investment of mothers in the quality of their daughters makes the rate of reproduction of the current generation depend not only on the current environment, but also on the environment (...)
     
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  2.  40
    Philosophical Dissertation on the Orbits of the Planets (1801), Preceded by the 12 Theses Defended on August 27, 1801.G. W. F. Hegel - 1987 - Graduate Faculty Philosophy Journal 12 (1/2):269-309.
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  3.  7
    Planets and Probability: Daniel Bernouilli on the Inclinations of the Planetary Orbits.Barry Gower - 1987 - Studies in History and Philosophy of Science Part A 18 (4):441-454.
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  4. Planets and Probability: Daniel Bernouilli on the Inclinations of the Planetary Orbits.Gower Barry - 1987 - Studies in History and Philosophy of Science 18 (4):441.
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  5. Philosophical Dissertation on the Orbits of the Planets , Preceded by the 12 Theses Defended on August 27, 1801.G. Hegel - 1987 - Graduate Faculty Philosophy Journal 12 (1/2):269-309.
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  6. Relations Between the Eccentricities and Inclinations of the Orbits of the Planets Jupiter and Saturn.R. T. A. Innes - 1910 - Transactions of the Royal Society of South Africa 2 (1):287-291.
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  7. Dissertatio Philosophica de Orbitis Planetarum =.Georg Wilhelm Friedrich Hegel - 2009 - Universidad Del País Vasco.
    De Orbitis Planetarum, tesis presentada por Hegel en 1801 para acceder a la Universidad de Jena, es el texto menos conocido del filósofo alemán. Considerado un inmaduro ejercicio de juventud, este libro muestra no sólo el pensamiento del joven Hegel, sino que también refleja el ambiente que enmarcaba el idealismo alemán en torno a la filosofía de la naturaleza. Sin embargo Hegel mantuvo un concepto referido al funcionamiento y legitimidad de los procesos científicos que aparece esbozado en este texto. Esta (...)
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  8. Planetary Gravitation and History.Tauno Mannila - 1973 - Distributor, Akateeminen Kirjaksuppa.
  9.  84
    What ‘the Number of Planets is Eight’ Means.Robert Knowles - 2015 - Philosophical Studies 172 (10):2757-2775.
    ‘The following sentence is true only if numbers exist: The number of planets is eight. It is true; hence, numbers exist.’ So runs a familiar argument for realism about mathematical objects. But this argument relies on a controversial semantic thesis: that ‘The number of planets’ and ‘eight’ are singular terms standing for the number eight, and the copula expresses identity. This is the ‘Fregean analysis’.I show that the Fregean analysis is false by providing an analysis of sentences such (...)
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  10.  23
    Understanding the Planets in Ancient China: Prediction and Divination in the Wu Xing Zhan.Christopher Cullen - 2011 - Early Science and Medicine 16 (3):218-251.
    The untitled and anonymous text known by modern scholars under the name Wu xing zhan 'Prognostics of the Five Stars [sc. 'planets']', datable to before 168 bce, is the earliest known surviving Chinese document to give a substantive account of the apparent motions of the five visible planets, and to discuss the significance of those motions. The text includes tabulated predictions of the motions of three planets from 246 bce to 177 bce. In each case it is (...)
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  11.  13
    Another Idea of Necessary Connection.Antony Flew - 1982 - Philosophy 57 (222):487 - 494.
    One of the greatest of Hume's philosophical achievements, which becomes in its turn an assumption presupposed by some of the others, is perhaps best stated at the end of the First Enquiry : ‘If we reason a priori , anything may appear able to produce anything. The falling of a pebble may, for aught we know, extinguish the sun; or the wish of a man control the planets in their orbits. It is only experience, which teaches us the (...)
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  12.  8
    Carl du Prel (1839–1899): Explorer of Dreams, the Soul, and the Cosmos.Thomas P. Weber - 2007 - Studies in History and Philosophy of Science Part A 38 (3):593-604.
    Nineteenth-century spiritism was a blend of religious elements, the philosophy of mind, science and popular science and contacts with extraterrestrials were a commonplace phenomenon during spiritistic séances. Using the example of Carl du Prel I show how his comprehensive mystic philosophy originated in a theory of extraterrestrial life. Carl du Prel used a Darwinian and monistic framework, theories of the unconscious and a Neo-Kantian epistemology to formulate a philosophy of astronomy and extraterrestrial life. He claimed that the mechanism of Darwinian (...)
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  13.  5
    The Universe as a Watermelon.John Cramer - unknown
    They had to be, because they were the creations of a perfect God, and a circle is the most perfect of geometrical objects. When Johannes Kepler, after spending most of his career trying to make sense of the meticulous planetary observations of Tycho Brahe, concluded that the orbits of the planets were not circles but ellipses, the discovery sent shock waves through the community of natural philosophers. The discovery led Newton and others to arrive at the inverse square (...)
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  14.  3
    Hegel's Natural Philosophy.Liang Zhixue - 1981 - Contemporary Chinese Thought 13 (1):87-104.
    Hegel's natural philosophy is an integral part of his objective idealist philosophical system, is his encyclopedic narration of all the achievements in the natural sciences attained up to the early years of the nineteenth century. Only after a long process of distillation did he tie together his philosophy of thought and of natural science to establish his rich and comprehensive natural philosophy. His On the Orbits of the Planets , written to secure his teaching credentials for the University (...)
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  15. The Principia: The Authoritative Translation and Guide: Mathematical Principles of Natural Philosophy.I. Bernard Cohen, Anne Whitman & Julia Budenz (eds.) - 2016 - University of California Press.
    In his monumental 1687 work, _Philosophiae Naturalis Principia Mathematica_, known familiarly as the _Principia_, Isaac Newton laid out in mathematical terms the principles of time, force, and motion that have guided the development of modern physical science. Even after more than three centuries and the revolutions of Einsteinian relativity and quantum mechanics, Newtonian physics continues to account for many of the phenomena of the observed world, and Newtonian celestial dynamics is used to determine the orbits of our space vehicles. (...)
     
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  16. The Principia: The Authoritative Translation: Mathematical Principles of Natural Philosophy.I. Bernard Cohen, Anne Whitman & Julia Budenz (eds.) - 2016 - University of California Press.
    In his monumental 1687 work, _Philosophiae Naturalis Principia Mathematica_, known familiarly as the _Principia_, Isaac Newton laid out in mathematical terms the principles of time, force, and motion that have guided the development of modern physical science. Even after more than three centuries and the revolutions of Einsteinian relativity and quantum mechanics, Newtonian physics continues to account for many of the phenomena of the observed world, and Newtonian celestial dynamics is used to determine the orbits of our space vehicles. (...)
     
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  17.  45
    The Removal of Pluto From the Class of Planets and Homosexuality From the Class of Psychiatric Disorders: A Comparison.Peter Zachar & Kenneth S. Kendler - 2012 - Philosophy, Ethics, and Humanities in Medicine 7 (1):4.
    We compare astronomers' removal of Pluto from the listing of planets and psychiatrists' removal of homosexuality from the listing of mental disorders. Although the political maneuverings that emerged in both controversies are less than scientifically ideal, we argue that competition for "scientific authority" among competing groups is a normal part of scientific progress. In both cases, a complicated relationship between abstract constructs and evidence made the classification problem thorny.
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  18.  21
    Detecting Extrasolar Planets.Peter Kosso - 2006 - Studies in History and Philosophy of Science Part A 37 (2):224-236.
    The detection of extrasolar planets presents a good case in which to clarify the distinction between observation and inference from evidence. By asking whether these planets have been observed or inferred from evidence, and by using the scientific details to answer the question, we will get a clearer understanding of the epistemic difference between these two forms of information. The issue of scientific realism pivots on this distinction, and the results of this case will help to articulate the (...)
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  19.  13
    The Ethical Relevance of Earth-Like Extrasolar Planets.Charles S. Cockell - 2006 - Environmental Ethics 28 (3):303-314.
    The discovery of Earth-sized extrasolar planets orbiting distant stars will merit an expansion of the sphere of entities worthy of moral consideration. Although it will be a long time, if ever, before humans visit these planets, it is nevertheless worthwhile to develop an environmental ethic that encompasses these planets, as this ethic reflects on our view of life on Earth and elsewhere. A particularly significant case would be a planet that displays spectroscopic signatures of life, although the (...)
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  20. The Number of Planets, a Number-Referring Term?Friederike Moltmann - 2016 - In Philip A. Ebert & Marcus Rossberg (eds.), Abstractionism: Essays in Philosophy of Mathematics. Oxford University Press. pp. 113-129.
    The question whether numbers are objects is a central question in the philosophy of mathematics. Frege made use of a syntactic criterion for objethood: numbers are objects because there are singular terms that stand for them, and not just singular terms in some formal language, but in natural language in particular. In particular, Frege (1884) thought that both noun phrases like the number of planets and simple numerals like eight as in (1) are singular terms referring to numbers as (...)
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  21.  6
    Can Aristotelianism Make Sense of Perihelion–Aphelion Orbits?Louis Groarke - 2016 - Studia Neoaristotelica 13 (2):121-168.
    In general historical treatments, one often encounters the idea that Kepler’s and Newton’s discovery of elliptical planetary orbits marked a decisive break with tradition and definitively undermined any possibility of an Aristotelian approach to physics and astronomy. Although Aristotle had no understanding of gravity, I want to demonstrate that elliptical orbits were a refinement of earlier models and that one can produce an Aristotelian account of elliptical orbits once one corrects his crucial mistake about gravity. One interesting (...)
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  22.  13
    The Complexity of Orbits of Computably Enumerable Sets.Peter A. Cholak, Rodney Downey & Leo A. Harrington - 2008 - Bulletin of Symbolic Logic 14 (1):69 - 87.
    The goal of this paper is to announce there is a single orbit of the c.e. sets with inclusion, ε, such that the question of membership in this orbit is ${\Sigma _1^1 }$ -complete. This result and proof have a number of nice corollaries: the Scott rank of ε is $\omega _1^{{\rm{CK}}}$ + 1; not all orbits are elementarily definable; there is no arithmetic description of all orbits of ε; for all finite α ≥ 9, there is a (...)
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  23.  11
    On Newton's Proof That Inverse-Square Orbits Must Be Conics.Bruce H. Pourciau - 1991 - Annals of Science 48 (2):159-172.
    Physicists and historians of science have always held that Isaac Newton should receive credit for the first proof that inverse-square orbits must be conics. This conviction derives from a brief argument, regarded as essentially correct, given by Newton in the Principia. Recently, however, it has been contended that this outline or sketch contains irreparable logical flaws. Here, the logical structure of this outline of Newton's, as well as the details that this outline omits, are carefully examined. We find that (...)
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  24.  1
    Some Orbits for E.Peter Cholak, Rod Downey & Eberhard Herrmann - 2001 - Annals of Pure and Applied Logic 107 (1-3):193-226.
    In this article we establish the existence of a number of new orbits in the automorphism group of the computably enumerable sets. The degree theoretical aspects of these orbits also are examined.
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  25.  3
    Elliptical Orbits and the Aristotelian Scientific Revolution Comment on Groarke.James Franklin - 2016 - Studia Neoaristotelica 13 (2):169-179.
    The Scientific Revolution was far from the anti-Aristotelian movement traditionally pictured. Its applied mathematics pursued by new means the Aristotelian ideal of science as knowledge by insight into necessary causes. Newton’s derivation of Kepler’s elliptical planetary orbits from the inverse square law of gravity is a central example.
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  26.  2
    Special Relativity, the Source of Electron Deep Orbits.J. L. Paillet & A. Meulenberg - 2017 - Foundations of Physics 47 (2):256-264.
    In this paper, we explicitly point out the reasons why Special Relativity must be considered as the source of electron deep orbits, and dominates their behavior. We show that the cause is the quadratic form of the relativistic expression of energy, and this clearly appears when we explicitly develop the relativistic Schrödinger equation and compare it with the non-relativistic one.
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  27.  4
    What ‘the Number of Planets is Eight’ Means.Kevin Timpe - 2015 - Philosophical Studies 172 (10):2757-2775.
    ‘The following sentence is true only if numbers exist: The number of planets is eight. It is true; hence, numbers exist.’ So runs a familiar argument for realism about mathematical objects. But this argument relies on a controversial semantic thesis: that ‘The number of planets’ and ‘eight’ are singular terms standing for the number eight, and the copula expresses identity. This is the ‘Fregean analysis’.
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  28.  23
    Angular Homeostasis: III. The Formalism of Discrete Orbits in Ontogeny.Kenneth R. Berger & Edmond A. Murphy - 1989 - Theoretical Medicine and Bioethics 10 (4).
    The formal properties of orbits in a plane are explored by elementary topology. The notions developed from first principles include: convex and polygonal orbits; convexity; orientation, winding number and interior; convex and star-shaped regions. It is shown that an orbit that is convex with respect to each of its interior points bounds a convex region. Also, an orbit that is convex with respect to a fixed point bounds a star-shaped region.Biological considerations that directed interest to these patterns are (...)
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  29.  10
    Al-Shīrāzī and the Empirical Origin of Ptolemy's Equant in His Model of the Superior Planets.Amir Mohammad Gamini & Hossein Masoumi Hamedani - 2013 - Arabic Sciences and Philosophy 23 (1):47-67.
    Ptolemy presents only one argument for the eccentricity in his models of the superior planets, while each one of them has two eccentricities: one for center of the uniform motion, the other for the center of the constant distance. To take into account the first eccentricity, he introduces the equant point, but he provides no argument for the eccentricity of the center of the deferent. Why is the second eccentricity different from the first one? The 13 th century astronomer (...)
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  30.  11
    Bifurcation Cascades and Self-Similarity of Periodic Orbits with Analytical Scaling Constants in Hénon–Heiles Type Potentials.Matthias Brack - 2001 - Foundations of Physics 31 (2):209-232.
    We investigate the isochronous bifurcations of the straight-line librating orbit in the Hénon–Heiles and related potentials. With increasing scaled energy e, they form a cascade of pitchfork bifurcations that cumulate at the critical saddle-point energy e=1. The stable and unstable orbits created at these bifurcations appear in two sequences whose self-similar properties possess an analytical scaling behavior. Different from the standard Feigenbaum scenario in area preserving two-dimensional maps, here the scaling constants α and β corresponding to the two spatial (...)
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  31.  10
    From Centripetal Forces to Conic Orbits: A Path Through the Early Sections of Newton's Principia.Bruce Pourciau - 2007 - Studies in History and Philosophy of Science Part A 38 (1):56-83.
    In this study, we test the security of a crucial plank in the Principia’s mathematical foundation, namely Newton’s path leading to his solution of the famous Inverse Kepler Problem: a body attracted toward an immovable center by a centripetal force inversely proportional to the square of the distance from the center must move on a conic having a focus in that center. This path begins with his definitions of centripetal and motive force, moves through the second law of motion, then (...)
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  32.  4
    Domesticating the Planets: Instruments and Practices in the Development of Planetary Geology.Matthew Benjamin Shindell - 2010 - Spontaneous Generations 4 (1):191-230.
    This paper examines the roles played by instruments and their associated practices in the development of the field of planetary geology. Specifically, remote sensing instruments and the images produced by instrument users are discussed. It is argued that through these instruments and images the first two generations of planetary geologists were able to 'domesticate' the planets and make them suitable for geological study. But this was not a straightforward process. The instruments themselves had to be 'domesticated' as geological tools, (...)
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  33.  2
    Extrasolar Planets and Occult Astronomy.John Cramer - unknown
    Keywords: extrasolar planets Hubble telescope occulter apodization life oxygen Published in the March-2007 issue of Analog Science Fiction & Fact Magazine ; This column was written and submitted 10/17/2006 and is copyrighted ©2006 by John G. Cramer. All rights reserved. No part may be reproduced in any form without the explicit permission of the author.
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  34.  43
    Of Brains and Planets: On a Causal Criterion for Mind-Brain Identities.Vera Hoffmann-Kolss - 2016 - Synthese 193 (4):1177-1189.
    Whether mental properties are identical with neural properties is one of the central questions of contemporary philosophy of mind. Many philosophers agree that even if mental properties are identical with neural properties, the mind-brain identity thesis cannot be established on empirical grounds, but only be vindicated by theoretical philosophical considerations. In his paper ‘When Is a Brain Like the Planet?’, Clark Glymour proposes a causal criterion for local property identifications and claims that this criterion can be used to empirically establish (...)
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  35.  22
    Scientific Enquiry and Natural Kinds: From Planets to Mallards.P. D. Magnus - 2012 - Palgrave-Macmillan.
    These are indispensable for successful science in some domain; in short, they are natural kinds. This book gives a general account of what it is to be a natural kind. It untangles philosophical puzzles surrounding natural kinds.
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  36. Orbits of Hyperhypersimple Sets and the Lattice of ∑03 Sets.E. Herrmann - 1983 - Journal of Symbolic Logic 48 (3):693 - 699.
    It will be shown that in the lattice of recursively enumerable sets all lattices $\underline{L}(X)$ are elementarily definable with parameters, where X is Σ 0 3 and $\underline{L}^3(X)$ consists of all Σ 0 3 sets containing X.
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  37. On the Orbits of Hyperhypersimple Sets.Wolfgang Maass - 1984 - Journal of Symbolic Logic 49 (1):51-62.
    This paper contributes to the question of under which conditions recursively enumerable sets with isomorphic lattices of recursively enumerable supersets are automorphic in the lattice of all recursively enumerable sets. We show that hyperhypersimple sets (i.e. sets where the recursively enumerable supersets form a Boolean algebra) are automorphic if there is a Σ 0 3 -definable isomorphism between their lattices of supersets. Lerman, Shore and Soare have shown that this is not true if one replaces Σ 0 3 by Σ (...)
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  38.  81
    Seeing Dark Things, by Roy Sorensen. New York, NY: OUP, 2008. Pp. Ix Roy Sorensen's Book, Seeing Dark Things, Begins with 'The Eclipse Riddle'. Suppose That One is Viewing In Between Oneself and the Sun Are Two Planets, One Smaller and Closer, Called. [REVIEW]Woodhouse Lane - 2012 - Mind 121:483.
  39. Hegel and the Seven Planets.Bertrand Beaumont - 1954 - Mind 63 (250):246-248.
  40.  14
    Kepler's Move From Orbs to Orbits: Documenting a Revolutionary Scientific Concept.Bernard R. Goldstein & Giora Hon - 2005 - Perspectives on Science 13 (1):74-111.
    This study of the concept of orbit is intended to throw light on the nature of revolutionary concepts in science. We observe that Kepler transformed theoretical astronomy that was understood in terms of orbs [Latin: orbes] and models , by introducing a single term, orbit [Latin: orbita], that is, the path of a planet in space resulting from the action of physical causes expressed in laws of nature. To demonstrate the claim that orbit is a revolutionary concept we pursue three (...)
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  41. The Number of Planets is Not a Number.J. Biro - 2010 - Analysis 70 (4):622-631.
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  42.  73
    The Logical Structure of Scientific Explanation and Prediction: Planetary Orbits in a Sun's Gravitational Field.Neil Tennant - 2010 - Studia Logica 95 (1/2):207 - 232.
    We present a logically detailed case-study of explanation and prediction in Newtonian mechanics. The case in question is that of a planet's elliptical orbit in the Sun's gravitational field. Care is taken to distinguish the respective contributions of the mathematics that is being applied, and of the empirical hypotheses that receive a mathematical formulation. This enables one to appreciate how in this case the overall logical structure of scientific explanation and prediction is exactly in accordance with the hypotheticodeductive model.
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  43.  26
    Planets, Pluralism, and Conceptual Lineage.Carl Brusse - 2016 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 53:93-106.
    Conceptual change can occur for a variety of reasons; some more scientifically significant than others. The 2006 definition of ‘planet’, which saw Pluto reclassified as a dwarf planet, is an example toward the more mundane end of the scale. I argue however that this case serves as a useful example of a related phenomenon, whereby what appears to be a single kind term conceals two or more distinct concepts with independent scientific utility. I examine the historical background to this case, (...)
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  44.  7
    Codable Sets and Orbits of Computably Enumerable Sets.Leo Harrington & Robert I. Soare - 1998 - Journal of Symbolic Logic 63 (1):1-28.
    A set X of nonnegative integers is computably enumerable (c.e.), also called recursively enumerable (r.e.), if there is a computable method to list its elements. Let ε denote the structure of the computably enumerable sets under inclusion, $\varepsilon = (\{W_e\}_{e\in \omega}, \subseteq)$ . We previously exhibited a first order ε-definable property Q(X) such that Q(X) guarantees that X is not Turing complete (i.e., does not code complete information about c.e. sets). Here we show first that Q(X) implies that X has (...)
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  45.  10
    Kepler, Elliptical Orbits, and Celestial Circularity: A Study in the Persistence of Metaphysical Commitment.J. Bruce Brackenridge - 1982 - Annals of Science 39 (2):117-143.
    Summary The metaphysical commitment to the circle as the essential element in the analysis of celestial motion has long been recognized as the hallmark of classical astronomy. What has not always been clear, however, is that the circle continued to serve Kepler as a central element in his astronomy after the discovery of the elliptical orbit of Mars. Moreover, the circle also functioned for Kepler in geometry to select the basic polygons, in music to select the basic harmonies, and in (...)
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  46.  45
    Classical Limit of Real Dirac Theory: Quantization of Relativistic Central Field Orbits[REVIEW]Heinz Krüger - 1993 - Foundations of Physics 23 (9):1265-1288.
    The classical limit of real Dirac theory is derived as the lowest-order contribution in $\mathchar'26\mkern-10mu\lambda = \hslash /mc$ of a new, exact polar decomposition. The resulting classical spinor equation is completely integrated for stationary solutions to arbitrary central fields. Imposing single-valuedness on the covering space of a bivector-valued extension to these classical solutions, orbital angular momentum, energy, and spin directions are quantized. The quantization of energy turns out to yield the WKB formula of Bessey, Uhlenbeck, and Good. It is demonstrated (...)
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  47. Ofer Gal. Meanest Foundations and Nobler Superstructures: Hooke, Newton and the" Compounding of the Celestial Motions of the Planets".N. Guicciardini - 2004 - Early Science and Medicine 9 (1):63-64.
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  48.  17
    Perceiving Other Planets: Bodily Experience, Interpretation, and the Mars Orbiter Camera.Robert Rosenberger - 2008 - Human Studies 31 (1):63-75.
    An emerging philosophical perspective called “postphenomenology,” which offers reflection upon human relations to technology, has the potential to increase our understanding of the functions performed by imaging technologies in scientific practice. In what follows, I review some relevant insights and expand them for use in the concrete analysis of practices of image interpretation in science. As a guiding example, I explore how these insights bear upon a contemporary debate in space science over images of the fossilized remains of a river (...)
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  49.  31
    Elliptic Orbits and the Growth of the Third Law with Newton.Philip E. B. Jourdain - 1920 - The Monist 30 (2):183-198.
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  50.  6
    A Classification of Orbits Admitting a Unique Invariant Measure.Nathanael Ackerman, Cameron Freer, Aleksandra Kwiatkowska & Rehana Patel - 2017 - Annals of Pure and Applied Logic 168 (1):19-36.
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