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Exploration: In Search of Sunken Treasure
Two thousand years ago a storm drove a Roman ship against a sheer rock wall on the north side of the remote Greek island of Antikythera. The boat sank, along with tons of treasure: coins, gold jewelry, dozens of large marble and bronze statues, and an extraordinary, bronze clockwork device now counted as the first analog computer.
The wreck lay at the sea bottom, 165 feet down, untouched until 1900, when one day sponge divers came upon it. The divers were equipped with little more than a helmet and a long hose to the surface for air; they struggled just to reach the decayed vessel. One of them died, and two others were paralyzed.
The next expedition did not come until 1976. Jacques Cousteau and his crew explored the site using standard scuba gear. To leave time for the ascent, which had to be slow to avoid "the bends" – the fast expansion of nitrogen in the body that can destroy nerves and kill – the divers could stay on the bottom only for a few precious minutes during each dive. ...
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