Calendars with Olympiad display and eclipse prediction on the Antikythera Mechanism

  title={Calendars with Olympiad display and eclipse prediction on the Antikythera Mechanism},
  author={Tony Freeth and Alexander Jones and J. Michael Steele and Yanis Bitsakis},
Previous research on the Antikythera Mechanism established a highly complex ancient Greek geared mechanism with front and back output dials. The upper back dial is a 19-year calendar, based on the Metonic cycle, arranged as a five-turn spiral. The lower back dial is a Saros eclipse-prediction dial, arranged as a four-turn spiral of 223 lunar months, with glyphs indicating eclipse predictions. Here we add surprising findings concerning these back dials. Though no month names on the Metonic… 

Revising the eclipse prediction scheme in the Antikythera mechanism

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Eclipse Prediction on the Ancient Greek Astronomical Calculating Machine Known as the Antikythera Mechanism

Two arithmetical models are presented here that explain the complete eclipse prediction scheme and imply a surprisingly early epoch for the Antikythera Mechanism.

The Front Dial of the Antikythera Mechanism

The Antikythera Mechanism, found in a shipwreck dating from the first century B.C., is the oldest geared mechanism known. Its general function was astronomical or calendrical, but the exact nature of

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The eclipse predictor (or Saros dial) of the Antikythera mechanism provides a wealth of astronomical information and offers practically the only possibility for a close astronomical dating of the

On the epoch of the Antikythera mechanism and its eclipse predictor

A series of constraints are applied, in a sort of sieve of Eratosthenes, to sequentially eliminate possibilities for the epoch date of the Antikythera mechanism, finding that the solar eclipse of month 13 of the Saros dial almost certainly belongs to solar Saros series 44.

Complex clock combines calendars

The latest decoding of the Antikythera Mechanism casts fresh light on the way these calendar schemes were planned, used and integrated, and shows it to be an instrument of unparalleled sophistication in antiquity.

Thales of Miletus, Archimedes and the Solar Eclipses on the Antikythera Mechanism

: Thales of Miletus (640?-546 BC) is famous for his prediction of the total solar eclipse in 585 BC. In this paper, the author demonstrate how Thales may have used the same principle for prediction

Our current knowledge of the Antikythera Mechanism

The Antikythera Mechanism is the oldest known mechanical calculator. It was constructed around the second century bce and lost in a shipwreck very close to the small Greek island of Antikythera. The

Decoding the ancient Greek astronomical calculator known as the Antikythera Mechanism

The Antikythera Mechanism is a unique Greek geared device, constructed around the end of the second century bc. It is known that it calculated and displayed celestial information, particularly cycles

Remarks on the Theoretical Treatment of Eclipses in Antiquity

It has been a recurring problem in the history of early astronomy to discover how eclipses, and particularly solar eclipses, might be predicted by astronomers whose theories seemed clearly

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Gears from the Greeks: The Antikythera Mechanism-A Calendar Computer from ca. 80 B.C.

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The Antikythera Mechanism: a New Gearing Scheme

  • History
  • 2005
The Antikythera Mechanism, the oldest geared instrument in the world, became widely known through the work of Professor Derek de Solla Price; and for anyone seriously interested in this seminal

Saros Cycle Dates and Related Babylonian Astronomical Texts

Tous ces textes sont conserves au British Museum et proviennent probablement de Babylone. Ils appartiennent a deux groupes, le 1 er sont les textes du Cycle Saros qui donnent les mois d'eventualite

Observations and Predictions of Eclipse Times by Early Astronomers

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Ptolemy's Almagest

Foreword vii Addenda and Corrigenda xi Preface xv Introduction i Contents of the Almagest 27 Translation of the Almagest 33 Appendices 649 Bibliography 673 Index 683