The Antikythera Mechanism: http://bit.ly/fm4oFK is the oldest known scientific computer, built in Greece at around 100 BCE. Lost for 2000 years, it was recovered from a shipwreck in 1901. But not until a century later was its purpose understood: an astronomical clock that determines the positions of celestial bodies with extraordinary precision. In 2010, we built a fully-functional replica out of
![YouTube - Lego Antikythera Mechanism](https://cdn-ak-scissors.b.st-hatena.com/image/square/f3274e43ae5b82f37f2230daa19db9f9753d82e6/height=288;version=1;width=512/https%3A%2F%2Fi.ytimg.com%2Fvi%2FRLPVCJjTNgk%2Fhqdefault.jpg)