Eratosthenes' Geodesy Unraveled: Was There a High-Accuracy Hellenistic Astronomy?

  title={Eratosthenes' Geodesy Unraveled: Was There a High-Accuracy Hellenistic Astronomy?},
  author={Dennis Rawlins},
  pages={259 - 265}
Implementing Eratosthenes’ Discovery in the Classroom: Educational Difficulties Needing Attention
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Consider the following quotation from the author of the treatise Fī sanat al-shams (“On the Solar Year”), most likely written in Baghdad in the first part of the ninth century:
Dark matter at the Fermi scale
Recent breakthroughs in cosmology reveal that a quarter of the Universe is composed of dark matter, but the microscopic identity of dark matter remains a deep mystery. I review recent progress in
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Measurement of long distances in astronomy and geodesy has an interesting history involving the inception of several statistical concepts, such as least absolute deviations, least squares, maximum
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It is well known that the precise value for the obliquity of the ecliptic that Ptolemy adopts in Almagest 1.14, namely 23°51'20", is simply the sexagesimal representation in degrees, rounded to the
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It is argued that a mathematical error affects this result, which suggests that the conventional ancient chronology, instead of being compressed, may actually have to be expanded slightly.
Volume Information
ABIR-AM, Pnina, rev. of An Imagined World, 481. Abrams, John W. (1913-1981), Eloge by Melvin Kranzberg, 422. Acloque, Paul, Oscillations et stabilite selon Foucault: Critique historique et