Akiyuky on YouTube has uploaded a 7 minuted video overview of her or his astounding Lego Ball Contraption, a robotic rube goldberg device in 17 modules, each more fiendishly clever than the last. The accompanying blog (in Japanese) has lots more detail. But honestly, you can just sit agog for seven glorious minutes and soak it all up without having to try and parse out Google Translate’s rendition of Akiyuky’s explanation.
(Thanks, Fipi Lele!)