LEGO Ferris Wheel

This is not just a LEGO Ferris wheel, which would be impressive by itself. This one loads and unloads sports balls ("passengers") by machine into the 64 carriages as it goes along. Designing this and keeping it going in sync is quite an accomplishment! Berthil van Beek built this contraption for the Eurobricks TC23 competition. Just watching this machine do its thing is soothing and satisfying. We also get an idea of the work involved. When van Beek loads 64 balls and finds that two fell along the way, he redesigns the mechanism to make sure that doesn't happen again. I would be surprised if I got one to load properly! (via Geeks Are Sexy)