[Lego Antikythera Mechanism](http://www.youtube.com/watch?v=RLPVCJjTNgk). Each set of gears perform once calculation and then pass on their “result” to the next set of gears. The result is that over 2000 years ago the Greeks had an astronomical clock for calculating the positions of celestial bodies at any given moment in time.

Letterpress with Legos

Graphic designers Sam Cox and Justin LaRosa have put Legos to yet another use by constructing a working letterpress printer out of the bricks. “By clicking smooth Lego tiles into place on plastic baseboards and inking the plates, they create handmade prints with an 8-bit aesthetic,” writes [Fast Code Design](http://www.fastcodesign.com/1662957/wanted-letterpress-made-of-legos-creates-charming-8-bit-prints). (Click the link to see some images.) Or check out [their website](http://physicalfiction.bigcartel.com/) to see some of the prints yourself.

Lego Antikythera Mechanism

I am tempted to embed the video of this thing in action, but it really is worth [a trip to the site][1] to get a look not only at the device but a behind the scenes look at the making of the film.

> This is a 2000-year-old analog computing device reconstructed out of Lego. It predicts solar and lunar eclipses, accurate to within two hours — all using plastic gears. Andy Carol, its designer, builds mechanical computers out of Lego as a hobby. He made this device basically because Adam Rutherford, an editor and producer at Nature, dared him to. When Adam heard that Andy had actually built the device, he called me and said, “Well, clearly we have to make some sort of film about this thing now.”

[1]: http://blog.smallmammal.com/post/2156532687/behind-the-scenes-lego-antikythera-mechanism