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THE ANTIKYTHERA MECHANISM


































           The Greek civilisation keeps surprising us for its rich legacy and its many legends
             and mysteries, which we are still trying to decipher today. One of its fascinating
           stories is that of the unique technological device discovered among the remains of

                                a shipwrecked Roman galley on the Greek island of Antikythera.



                         he devise’s  contemporary  depiction  al-  its gear, it was able to accurately replicate the speed and
                         ready starts in an intriguing way, because   duration  of the Moon's movement in its elliptical  orbit.  It
                         its  discovery occurred completely  by   also reproduced with great accuracy the orbits of the five
                         chance, it was a stroke of luck. It happened   planets known in antiquity: Mercury, Venus, Mars, Jupiter
                         more than 100 years ago, when a group   and Saturn. On the front of the mechanism it had depicted a
                         of sea sponge hunters decided to try their   planetarium with the Earth in the centre and the five planets
                         fortune on the island of Antikythera, dis-  revolving around it.
         Tcovering  instead  the  greatest  treasure
          of Greek pieces among the remains of a Roman galley 2000   More than 2000 years later, verifying the precision demon-
          years old. There, on the sandy bottoms where marble and   strated by the Greeks regarding all this astronomical knowl-
          copper statues rested, was found the –since then called–   edge is overwhelming. The idea of mechanising these sci-
          Antikythera  mechanism,  a  sort  of  mechanical  computer   entific theories into a contraption to ascertain what would
          made of bronze about the size of a tablet.          happen days, months and years later is simply extraordinary.

          GREEK CUTTING EDGE TECHNOLOGY                       THE MIND BEHIND THE IDEA
          After subjecting the device to X-rays and gamma rays, it was   The Antikythera mechanism also predicted the exact date
          discovered that its interior was extremely complex, since it   of the Panhellenic games. And, although those of Olympia
          was composed of up to 27 gear wheels. It is a totally anach-  were the most prestigious,  the Isthmians  (in Corinth) ap-
          ronistic piece due to its highly advanced system of gears   pear much more prominent in the mechanism. This clue was
          and mechanical movements by means of which they could   essential to track down the device’s creator. After years of
          replicate  and  predict  astronomical  movements. A true   research, experts came to the conclusion that the mind be-
          work of technological engineering.                  hind this incredible contraption lived in Syracuse and was
                                                              none other than Archimedes, the brilliant mathematician,
          The Antikythera mechanism predicted eclipses with preci-  physicist, engineer, inventor and astronomer. A privileged
          sion as well as the seasons and the length of the Moon's   mind from Ancient Greece that still surprises and amazes
          cycles. By means of two of the wheels and various teeth of   everybody today.



                                                                                                  MG MAGAZINE 75
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