•  58
    Klaudios Ptolemaios: Handbuch der Geographie, Griechisch-Deutsch (review)
    American Journal of Philology 129 (1): 128-131. 2008.
  •  32
    Body in mind
    with Bettina Forster
    Frontiers in Psychology 6. 2015.
  •  22
    Ptolemy's Ancient Planetary Observations
    Annals of Science 63 (3): 255-290. 2006.
    Summary The Almagest of Ptolemy (mid-second century ad) contains eleven dated reports of observations of the positions of planets made during the third century bc in Babylon and Hellenistic Egypt. The present paper investigates the character, purpose, and conventions of the observational programmes from which these reports derive, the channels of their transmission to Ptolemy's time, and the fidelity of Ptolemy's presentation of them. Like the Babylonian observational programme, about which we h…Read more
  •  19
    A Mathematician's Journeys: Otto Neugebauer and Modern Transformations of Ancient Science (edited book)
    with John Steele and Christine Proust
    Springer Verlag. 2016.
    Otto Neugebauer’s early academic career was marked by a series of transitions. His interests shifted from physics to mathematics, and finally to the history of ancient mathematics and exact sciences. Yet even from his early years in Graz, Neugebauer was strongly attracted to the mathematical culture of Göttingen. When he arrived there in 1922, he quickly established a strong personal friendship with Richard Courant, the newly appointed Director of the Mathematics Institute. Neugebauer and Couran…Read more
  •  17
    Ptolemy's Planetary Mean Motions Revisited
    with Dennis Duke
    Centaurus 47 (3): 226-235. 2005.
  •  12
    A Posy of Almagest Scholia
    Centaurus 45 (1-4): 69-78. 2003.
  •  9
    A Study of Babylonian Observations of Planets Near Normal Stars
    Archive for History of Exact Sciences 58 (6): 475-536. 2004.
    Abstract.The present paper is an attempt to describe the observational practices behind a large and homogeneous body of Babylonian observation reports involving planets and certain bright stars near the ecliptic (“Normal Stars”). The reports in question are the only precise positional observations of planets in the Babylonian texts, and while we do not know their original purpose, they may have had a part in the development of predictive models for planetary phenomena in the second half of the f…Read more
  • The Stoics and the Astronomical Sciences
    In Brad Inwood (ed.), The Cambridge Companion to the Stoics, Cambridge University Press. pp. 328--44. 2003.