2019年1月22日 · In 2005, it was established that it predicted eclipses, using a 7th century BC Babylonian eclipse cycle of 223 lunar months, known as the Saros Cycle. Understanding the complex eclipse...

The Antikythera mechanism (fragment A – front and rear); visible is the largest gear in the mechanism, about 13 cm (5 in) in diameter. Type: ... Since the length of the Saros cycle is to a third of a day (namely, 6,585 days plus 8 hours), a full exeligmos cycle returns the counting to an integral number of days, as reflected in the ...

2014年7月30日 · The ancient Greek astronomical calculating machine, known as the Antikythera Mechanism, predicted eclipses, based on the 223-lunar month Saros cycle. Eclipses are indicated on a four-turn spiral Saros Dial by glyphs, which describe type and time of eclipse and include alphabetical index letters, referring to solar eclipse inscriptions.

starting date of the Saros spiral and the eclipse events scheme of the Antikythera Mechanism. KEYWORDS: Saros spiral, Saros cycle, Sar period, eclipse possibility events, Saros starting date

This work analyzes the phase correlation of the three lunar cycles and the Saros/Exeligmos cycle, after the study of the chapter “About Exeligmos” in “Introduction to the Phenomena” by Geminus. Geminus refers that each Exeligmos Cycle began on very specific and rare

Eudoxus papyrus was the key for the lost words detection of the Back Plate inscriptions/eclipse events classification of the Antikythera Mechanism. 1. Introduction. The Antikythera Mechanism was a geared device of the Hellenistic era ca. 180 BC.

2014年1月1日 · The surviving gearing was based on the Metonic and Saros cycles from ancient Babylon, to which the Greeks had added an elegant epicyclic theory to explain the Moon’s anomaly. It was a stunning technological achievement – one of the true wonders of the ancient world (Fig. 143.11 ).

2014年11月15日 · 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 mechanism. We apply a series of constraints, in a sort of sieve of Eratosthenes, to sequentially eliminate possibilities for the epoch date.

2021年10月21日 · The Mechanism implemented the astronomical knowledge of ancient Greeks about the motion of these heavenly bodies with astonishing accuracy, considering the anomalous orbit of the Moon using a system of eccentric gears. It could also predict eclipses of the Sun and the Moon based on the Saros period, which was found in one of its scales.

The machine predicted or described solar and lunar eclipse possibilities and calculated the lunar phases on the basis of the Saros cycle. Furthermore, it displayed the data for the four Panhellenic games (Isthmian, Olympic, Nemean, and Pythian games), as well as the lesser known Naa games (Dodona) and Halieian games (Rhodes).