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In 1900, a group of Greek sponge divers happened upon a two thousand year old ship wreck at the bottom of the Aegean Sea that would re-write history. Hidden deep inside were the remains of a copper mechanism. The Ancient Greeks were known to be philosophers, poets and mathematicians, but there was nothing in the archaeological record to suggest that they were also technicians capable of creating something so complex. It has taken researchers 100 years to understand how the mechanism works...