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Christián C. Carman [16]Christián Carman [7]Christián Carlos Carman [3]
  1.  51
    Did Ptolemy Make Novel Predictions? Launching Ptolemaic Astronomy Into the Scientific Realism Debate.Christián Carman & José Díez - 2015 - Studies in History and Philosophy of Science Part A 52:20-34.
  2.  13
    Ptolemaic Planetary Models and Kepler’s Laws.Gonzalo Recio & Christián Carman - 2019 - Archive for History of Exact Sciences 73 (1):39-124.
    In this article, we aim at presenting a thorough and comprehensive explanation of the mathematical and theoretical relation between all the aspects of Ptolemaic planetary models and their counterparts which are built according to Kepler’s first two laws. Our article also analyzes the predictive differences which arise from comparing Ptolemaic and these ideal Keplerian models, making clear distinctions between those differences which must be attributed to the structural variations between the models, and those which are due to the specific parameters (...)
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  3.  2
    On the Epoch of the Antikythera Mechanism and its Eclipse Predictor.James Evans & Christián C. Carman - 2014 - Archive for History of Exact Sciences 68 (6):693-774.
    The eclipse predictor of the Antikythera mechanism provides a wealth of astronomical information and offers practically the only possibility for a close astronomical dating of the mechanism. We apply a series of constraints, in a sort of sieve of Eratosthenes, to sequentially eliminate possibilities for the epoch date. We find that the solar eclipse of month 13 of the Saros dial almost certainly belongs to solar Saros series 44. And the eclipse predictor would work best if the full Moon of (...)
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  4.  1
    Rounding Numbers: Ptolemy’s Calculation of the Earth–Sun Distance.Christián C. Carman - 2009 - Archive for History of Exact Sciences 63 (2):205-242.
    In this article, I analyze the coincidence of the prediction of the Earth–Sun distance carried out by Ptolemy in his Almagest and the one he carried out, with another method, in the Planetary Hypotheses. In both cases, the values obtained for the Earth–Sun distance are very similar, so that the great majority of historians have suspected that Ptolemy altered or at least selected the data in order to obtain this agreement. In this article, I will provide a reconstruction of some (...)
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  5.  18
    La refutabilidad del sistema de epiciclos y deferentes de Ptolomeo.Christián C. Carman - 2010 - Principia: An International Journal of Epistemology 14 (2):211-239.
    To assert that the ancient planetary theory proposed by Ptolemy was irrefutable – at least until the telescope discovery – is a bit of a cliché. The aim of this paper is to analyze in what sense it could be said that the epicycle and deferent model proposed by Ptolemy to explain the planetary movement is irrefutable and in what sense it is not. To do this, we will use the conceptual framework developed by the Structuralist Conception, and in particular, (...)
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  6.  4
    The Two Earths of Eratosthenes.Christián Carlos Carman & James Evans - 2015 - Isis 106 (1):1-16.
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  7.  27
    On the Determination of Planetary Distances in the Ptolemaic System.Christián C. Carman - 2010 - International Studies in the Philosophy of Science 24 (3):257-265.
    In 1975, Imre Lakatos and Elie Zahar claimed that the determination of planetary distances represents excess empirical content of Copernicus's theory over that of Ptolemy. This claim provoked an interesting discussion during the first half of the 1980s. The discussion started when Alan Chalmers affirmed that it is not correct to attribute this advantage to the Copernican system over the Ptolemaic. Other scholars criticized Chalmers's assertion, reaffirming the position of Lakatos and Zahar: one went even further, asserting that Copernicus has (...)
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  8.  8
    La distinción teórico/observacional: ¿favorece o perjudica al realismo científico? (Is the Observational/Theoretical Distinction Negative or Favorable for Scientific Realism?).Christián C. Carman - 2005 - Critica 37 (111):83-96.
    Laudan denuncia una paradoja que recae sobre el realista científico. Por un lado, necesita la distinción teórico/observacional para definir su posición pero, por otro, la disolución de la distinción favorece su argumentación. En este artículo me propongo mostrar que si dentro de la distinción teórico/observacional se identifican dos dicotomías diferentes --una entre entidades observables y no observables y otra entre términos teóricos y no teóricos--, la paradoja se disuelve, pues para la caracterización del realismo hace falta la distinción entre términos (...)
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  9.  4
    Babylonian Solar Theory on the Antikythera Mechanism.Christián Carman & James Evans - 2019 - Archive for History of Exact Sciences 73 (6):619-659.
    This article analyzes the angular spacing of the degree marks on the zodiac scale of the Antikythera mechanism and demonstrates that over the entire preserved 88° of the zodiac, the marks are systematically placed too close together to be consistent with a uniform distribution over 360°. Thus, in some other part of the zodiac scale, the degree marks have been spaced farther apart. By contrast, the day marks on the Egyptian calendar scale are spaced uniformly, apart from minor errors. A (...)
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  10. El realismo científico y los milagros inesperados.Christian C. Carman - 2006 - Ludus Vitalis 14 (26):93-101.
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  11.  7
    La refutabilidad del sistema de epiciclos y deferentes de Ptolomeo DOI:10.5007/1808-1711.2010v14n2p211.Christián C. Carman - 2010 - Principia: An International Journal of Epistemology 14 (2):211-239.
    To assert that the ancient planetary theory proposed by Ptolemy was irrefutable – at least until the telescope discovery – is a bit of a cliché. The aim of this paper is to analyze in what sense it could be said that the epicycle and deferent model proposed by Ptolemy to explain the planetary movement is irrefutable and in what sense it is not. To do this, we will use the conceptual framework developed by the Structuralist Conception, and in particular, (...)
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  12.  1
    Martianus Capella’s Calculation of the Size of the Moon.Christián C. Carman - 2017 - Archive for History of Exact Sciences 71 (2):193-210.
    The eighth book of Martianus Capella’s famous De Nuptiis Philologiae et Mercurii deserves a prominent place in the history of astronomy because it is the oldest source that came down to us unambiguously postulating the heliocentrism of the inner planets. Just after the paragraph in which Capella asserts that Mercury and Venus revolve around the Sun, he describes a method for calculating the size of the Moon, as well as the proportion between the size of its orbit and the size (...)
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  13. "Scientific Realism" is Said in Many Ways, at Least in 1111: An Elucidation of the Term "Scientific Realism".Christián Carlos Carman - 2005 - Scientiae Studia 3 (1):43-64.
  14.  1
    Tycho Brahe’s Calculi Ad Corrigenda Elementa Orbitae Saturni and the Technical Aspects of His Planetary Model of Saturn.Christián C. Carman - 2020 - Archive for History of Exact Sciences 74 (6):565-586.
    Tycho Brahe was not just an observer; he was a skilled theoretical astronomer, as his lunar and solar models show. Still, even if he is recognized for proposing the Geoheliocentric system, little do we know of the technical details of his planetary models, probably because he died before publishing the last two volumes of his Astronomiae Instaurandae Progymnasmata, which he planned to devote to the planets. As it happens, however, there are some extant drafts of his calculations in Dreyer’s edition (...)
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  15.  29
    The Electrons of the Dinosaurs and the Center of the Earth: Comments on D.D. Turner’s ‘The Past Vs. The Tiny: Historical Science and the Abductive Arguments for Realism’. [REVIEW]Christián C. Carman - 2005 - Studies in History and Philosophy of Science Part A 36 (1):171-173.
    Turner [The past vs. the tiny: Historical science and the abductive arguments for realism. Studies in History and Philosophy of Science 35A 1] claims that the arguments in favor of realism do not support with the same force both classes of realism, since they supply stronger reasons for experimental realism than for historical realism. I would like to make two comments, which should be seen as amplifications inspired by his proposal, rather than as a criticism. First, it is important to (...)
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  16.  11
    The First Copernican Was Copernicus: The Difference Between Pre-Copernican and Copernican Heliocentrism.Christián C. Carman - 2018 - Archive for History of Exact Sciences 72 (1):1-20.
    It is well known that heliocentrism was proposed in ancient times, at least by Aristarchus of Samos. Given that ancient astronomers were perfectly capable of understanding the great advantages of heliocentrism over geocentrism—i.e., to offer a non-ad hoc explanation of the retrograde motion of the planets and to order unequivocally all the planets while even allowing one to know their relative distances—it seems difficult to explain why heliocentrism did not triumph over geocentrism or even compete significantly with it before Copernicus. (...)
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  17.  3
    The Gravitational Influence of Jupiter on the Ptolemaic Value for the Eccentricity of Saturn.Christián C. Carman - forthcoming - Archive for History of Exact Sciences.
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  18.  13
    The Planetary Increase of Brightness During Retrograde Motion: An Explanandum Constructed Ad Explanantem.Christián Carlos Carman - 2015 - Studies in History and Philosophy of Science Part A 54:90-101.
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  19. Two Problems in Aristarchus’s Treatise on the Sizes and Distances of the Sun and Moon.Christián C. Carman - 2014 - Archive for History of Exact Sciences 68 (1):35-65.
    The book of Aristarchus of Samos, On the distances and sizes of the sun and moon, is one of the few pre-Ptolemaic astronomical works that have come down to us in complete or nearly complete form. The simplicity and cleverness of the basic ideas behind the calculations are often obscured in the reading of the treatise by the complexity of the calculations and reasoning. Part of the complexity could be explained by the lack of trigonometry and part by the fact (...)
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  20.  2
    Vestiges of the Emergence of Overspecification and Indifference to Visual Accuracy in the Mathematical Diagrams of Medieval Manuscripts.Christián C. Carman - 2020 - Centaurus 62 (1):141-157.
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  21. Explicar y contrastar.Santiago Ginnobili & Christián Carman - 2016 - Critica 48 (142):57-86.
    Resumen: Usualmente se ha asumido que una única distinción puede dar cuenta del rol que cumplen los conceptos en una teoría respecto de la contrastación y respecto de la explicación. Intentaremos mostrar que esta asunción es incorrecta. Por una parte, no hay razones para considerar que esta coincidencia deba darse, y por otra, como se intentará mostrar a partir de varios ejemplos, de hecho, no se da. La base de contrastación de una teoría no tiene por qué coincidir con el (...)
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  22.  1
    Accurata Delineatio Motuum Stellae Martis: How Accurate Is Kepler’s Pretzel Diagram?Diego Pelegrin & Christián C. Carman - 2019 - Isis 110 (4):726-741.
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