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archaeologist cleared off a layer of organic material from one of the pieces of junk and
found that it looked like a gearwheel. It had inscriptions in Greek characters and seemed
to have something to do with astronomy.
C That piece of
“
Junk” went on to become the most celebrated find from the shipwreck; it
is displayed at the National Archaeological Museum of Athens. Research has shown that
the wheel was part of a device so sophisticated that its complexity would not be matched
for a thousand years
— it was also the world's first known analog computer. The device
is so famous that an international conference organized in Athens a couple of weeks ago
had only one subject: the Antikythera Mechanism.
D Every discovery about the device has raised new questions. Who built the device, and
for what purpose? Why did the technology behind it disappear for the next thousand
years? What does the device tell us about ancient Greek culture? And does the marvelous
construction, and the precise knowledge of the movement of the sun and moon and Earth
that it implies, tell us how the ancients grappled with ideas about determinism and human
destiny?
E "We have gear trains from the 9th century in Baghdad used for simpler displays of the
solar and lunar motions relative to one another
— they use eight gears,’ said Frangois
Charette, a historian of science in Germany who wrote an editorial accompanying a new
study of the mechanism two weeks ago in the journal Nature.
“
In this case, we have more
than 30 gears. To see it on a computer animation makes it mind-boggling. There is no
doubt it was a technological masterpiece."
F The device was probably built between 100 and 140 BC, and the understanding of
astronomy it displays seems to have been based on knowledge developed by the
Babylonians around 300-700 BC, said Mike Edmunds, a professor of astrophysics at
Cardiff University in Britain. He led a research team that reconstructed what the gear
mechanism would have looked like by using advanced three- dimensional-imaging
technology. The group also decoded a number of the inscriptions. The mechanism
explores the relationship between lunar months __ the time it takes for the moon to cycle