Antikythera Decoded

One of the most intriguing archeological finds this century was the encrusted mechanical device found in 1901 on a 2,000 year-old shipwreck in the Mediterranean Sea midway between Greece's Peloponnesian peninsula and the island of Crete.

Although having been studied extensively over the years, it was only recently that sophisicated x-ray and light imaging technology allowed a fuller understanding of the the so-called Antikythera mechanism.

The device, dating from Greece about 200 BC, was a very accurate solar and lunar calculator, able to predict eclipses and identify subtle irregularities in the lunar orbit. The bronze instrument tracked the Metonic cycle, which is based on the near equivalence of 235 lunar months to 19 solar years.