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| 表面の説明 | ログイン して詳細を見る |
|---|---|
| 表面の文字体系 | Greek |
| 表面の銘文 | ログイン して詳細を見る |
| 裏面の説明 | The reverse depicts a colorized reproduction of Fragment A of the Antikythera Mechanism, the ancient Greek analog computing device discovered in a shipwreck off the island of Antikythera, rendered with remarkable detail including its corroded bronze surface and visible gear teeth. The fragment is shown in polychrome color treatment against the silver field, highlighting the green and brown patination of the original artifact. The upper legend ΑΡΧΑΙΑ ΕΛΛΗΝΙΚΗ ΤΕΧΝΟΛΟΓΙΑ (Ancient Greek Technology) arcs along the periphery, with the date 2022 at the left and the legend Ο ΜΗΧΑΝΙΣΜΟΣ ΤΩΝ ΑΝΤΙΚΥΘΗΡΩΝ (The Antikythera Mechanism) arcing along the lower portion. A small engraver's signature appears in the lower central field. |
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| 追加情報 |
The Antikythera mechanism was recovered in 1901 from a Roman-era shipwreck off the island of Antikythera, initially dismissed as an unremarkable corroded lump before researchers recognized it as a geared astronomical calculator dating to roughly 100–150 BC. Decades of X-ray and CT analysis — most recently the 2021 UCL study — have reconstructed its function as a device capable of predicting solar and lunar eclipses, tracking the Metonic cycle, and modeling planetary motion with a sophistication not seen again in Europe for over a thousand years.
This issue belongs to Greece's ongoing program of numismatic tributes to ancient science and philosophy.