Nature editor Adam Rutherford wanted to see how a 2,000-year-old astronomical computation machine--called the Antikythera Mechanism--works. So he set Apple software engineer Andy Carol to the task of building one, using one of the most sophisticated construction systems humanity has ever devised: Lego. It took 30 days and 1,500 Lego Technic parts. The gear-based machine was discovered in the early 1900s in a wrecked Roman merchant ship. Even after a century of study, it took the invention of CT scans to reconstruct the corroded device's inner workings and understand how the complex machine operates, explains Nature:
The device ... contained more than 30 bronze gearwheels and was covered with Greek inscriptions. On the front was a large circular dial with two concentric scales. One, inscribed with names of the months, was divided into the 365 days of the year; the other, divided into 360 degrees, was marked with the 12 signs of the zodiac.