Cosma Home > Communication > Media > Antikythera Mechanism


Antikythera Mechanism – The Clockwork Computer (The Economist)
Antikythera mechanism (Wikipedia)

On the Trail of an Ancient Mystery (John Markoff, New York Times)
Mysterious Antikythera Mechanism Is Even Older Than We Thought (Marissa Fessenden,


These are organized by a classification scheme developed exclusively for Cosma. More…



Antikythera mechanism is an ancient analogue computer and orrery used to predict astronomical positions and eclipses for calendrical and astrological purposes, as well as the Olympiads, the cycles of the ancient Olympic Games.

Found housed in a 340 millimetres (13 in) × 180 millimetres (7.1 in) × 90 millimetres (3.5 in) wooden box, the device is a complex clockwork mechanism composed of at least 30 meshing bronze gears. Its remains were found as one lump, later separated in three main fragments, which are now divided into 82 separate fragments after conservation works. Four of these fragments contain gears, while inscriptions are found on many others. The largest gear (clearly visible in Fragment A at right) is approximately 140 millimetres (5.5 in) in diameter and originally had 223 teeth.

The artifact was recovered probably in July 1901 from the Antikythera shipwreck off the Greek island of Antikythera. After the knowledge of this technology was lost at some point in antiquity, technological artifacts approaching its complexity and workmanship did not appear again until the development of mechanical astronomical clocks in Europe in the fourteenth century. — Wikipedia



The Antikythera Mechanism I With Java animations (Bill Casselman, American Mathematical Society)
Simulation of the Antikythera Mechanism (Manos Roumeliotis)



The History of the Antikythera Mechanism


The Antikythera Mechanism at the National Archaeological Museum (Athens, Greece)


WorldCat, Library of Congress, UPenn Online Books, Open Library




NPR Archives, Google News









  • The History of AI Evolution: How Did We Get Here?...
    on August 20, 2019 at 12:09 pm

    The History of AI Evolution: How Did We Get Here?  TechNaduArtificial intelligence seems to be in the news more than ever before these days. From Deep Fakes to self-driving cars and facial recognition, there's an AI ...

  • Eight places that will pay you to move there -...
    on August 20, 2019 at 3:49 am

    Eight places that will pay you to move there  The Irish TimesIf you are fed up with Ireland's high cost of living, you can always consider these options.

  • Antikythera Island: The Peaceful Paradise at the...
    on August 19, 2019 at 6:22 pm

    Antikythera Island: The Peaceful Paradise at the Edge of the Aegean Sea  Greek ReporterLife on the isolated Greek island of Antikythera, lying at the edge of the Aegean Sea between Crete and the Peloponnesian Peninsula, can be tough if the supply ...

  • NICK STROBEL: Celebrate an overlooked natural...
    on August 18, 2019 at 5:00 pm

    NICK STROBEL: Celebrate an overlooked natural wonder at Dark Sky Festival  The Bakersfield CalifornianTonight the moon will be a gibbous phase, lighting up the sky for almost the entire night. By next Saturday it will be a waning crescent phase, not rising until.

  • Govt will pay you Rs 40k to live in this island -...
    on August 15, 2019 at 1:30 am

    Govt will pay you Rs 40k to live in this island  OrissaPOSTApart from cities and villages, there are many places in the world where people can live. One such place is there in Greece. The government here has made a ...