the fabulous astronomy computer, that even forecast eclipses (possibly the real reason for them), has been found to have more stuff hidden in its hold...
The Antikythera mechanism "apparently used 37 gear wheels, a technology reinvented a millennium later, to create a lunar calendar and predict the motion of the planets"
Pretty cool thing.
Amateurs built google. Professionals built the titanic. We can't find the guy that built this tiny ad: