Components and status

Item	Status	Notes
Calculator (Sun, Moon, phase, eclipses, back dials)	available	Ratios from the tooth counts of Freeth et al. 2006/2008/2021; compared with ephemerides (Meeus).
3D kinematic model	available	Geometry from Table S8 (2021); layout solved from the meshings; one-click exploded view.
Local sky (rise/set, altitude, eclipse visibility)	available	Place chosen by the user; local mean time.
Planets — Mercury and Venus	available	Tooth counts published in the text of Freeth et al. 2021.
Planets — Mars, Jupiter, Saturn	to be verified	Tooth counts derived here from the published period relations; no surviving gear.
Calibration epoch 28 April 205 BC	to be verified	Freeth 2014 hypothesis (start of the Saros dial); alternative: recalibration on the entered date.
Solar slot (e/r = 0.0334)	to be verified	Project choice for the solar inequality; not measured on the fragments.
Year length 365.25 d	to be verified	Consistent with the dial calendar; yields ~17 days of drift over 22 centuries, shown as such.
One-click exploded view	available	New in v1.1.
Fallback without WebGL	available	New in v1.1: the calculator works even without 3D.
Greek version	in development	Project pages available (v1.3); calculator and 3D being translated; native-speaker review to be verified.
Printable / buildable model (STL, module, arbors)	in development	Next milestone: export of the wheels with a standard module and an assembly plan.
Kit for schools and museums	in development	Learning paths and kiosk mode.
Conference in Syracuse	in development	Date, venue and speakers to be confirmed.
X. Moussas exhibition — Italian version	available	14 panels translated into Italian (Sept 2026); 6 already available from the author. Index under Exhibition.
Sign-ups today	available	By email (no third-party service); automatic newsletter under evaluation.

Changelog

v1.4 — 10 September 2026. New Exhibition page: an index of the twenty-two panels of Xenophon Moussas's exhibition with the status of the Italian version; the calendar link between the mechanism, Syracuse and Tauromenion is now also recorded on the Conference page.
v1.3 — 10 September 2026. Greek version of the project pages (menu, footer, About, Join, Status, Conference, Build It, Research, Schools & Museums, Privacy, Terms); native-speaker review: to be verified.
v1.2 — 10 September 2026. Gear card (tap a wheel in the 3D) with its function, translated in EN/ES; section on Archimedes, Phidias and Syracuse; neutral wording; project email.
v1.1 — 9 September 2026. Fallback without WebGL; menu and project pages (About, Join, Status, Conference, Build It, Research, Schools & Museums, Privacy, Terms); reworded claim.
v1.0 — 7 September 2026. Launch: IT/EN/ES calculator, 3D model, local sky, planets of the 2021 Cosmos, data-provenance text.

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