Gear Ratios of the Antikythera Mechanism Encode Ancient Babylonian Eclipse Cycles — E8 Intelligence Research

FINDING: The Antikythera Mechanism encodes a lunisolar calendar and eclipse prediction via gear ratios that reduce to Babylonian/astronomical period relations (Metonic, Saros, Callippic, Exeligmos), with the front zodiac dial division now reconstructed from X-ray CT data. | MATH: Key ratios embedded in gear trains: 19-year Metonic cycle (235 synodic months = 254 sidereal months), 223-month Saros eclipse cycle, 27.2122-day draconic month, 29.5306-day synodic month. Gear counts (e.g., 53/19, 64/38, 48/24, 127/32) reduce to fractions approximating these periods. The zodiac dial ring is divided into 360° (or 365° if Egyptian calendar ring), with each zodiac sign spanning 30°. The newly reconstructed front dial parts (arXiv:2505.08484) show the zodiac ring's division into 12 equal 30° sectors, with pin-and-slot mechanisms for the anomalistic month (27.5546 days) via a 4-year cycle (1461 days). | CONNECTION: The 360° zodiac division and 60-based sexagesimal arithmetic (Babylonian heritage) d Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-09-01
DOI
https://doi.org/10.5281/zenodo.22235864
Primary Topic
Historical Astronomy and Related Studies
Type
preprint
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
preprint

Gear Ratios of the Antikythera Mechanism Encode Ancient Babylonian Eclipse Cycles — E8 Intelligence Research

Andrew Stewart Caldin
Zenodo (CERN European Organization for Nuclear Research)
Historical Astronomy and Related Studies
preprint

Gear Ratios of the Antikythera Mechanism Encode Ancient Babylonian Eclipse Cycles — E8 Intelligence Research

Andrew Stewart Caldin
preprint en

Abstract

FINDING: The Antikythera Mechanism encodes a lunisolar calendar and eclipse prediction via gear ratios that reduce to Babylonian/astronomical period relations (Metonic, Saros, Callippic, Exeligmos), with the front zodiac dial division now reconstructed from X-ray CT data. | MATH: Key ratios embedded in gear trains: 19-year Metonic cycle (235 synodic months = 254 sidereal months), 223-month Saros eclipse cycle, 27.2122-day draconic month, 29.5306-day synodic month. Gear counts (e.g., 53/19, 64/38, 48/24, 127/32) reduce to fractions approximating these periods. The zodiac dial ring is divided into 360° (or 365° if Egyptian calendar ring), with each zodiac sign spanning 30°. The newly reconstructed front dial parts (arXiv:2505.08484) show the zodiac ring's division into 12 equal 30° sectors, with pin-and-slot mechanisms for the anomalistic month (27.5546 days) via a 4-year cycle (1461 days). | CONNECTION: The 360° zodiac division and 60-based sexagesimal arithmetic (Babylonian heritage) d Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com

Zenodo (CERN European Organization for Nuclear Research)
Sustainable cities and communities
Historical Astronomy and Related Studies
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.