Everybody enjoys a good ol’ entertaining Rube Goldberg machine, whether it’s a fantasy Loony Tunes contraption or a real-life state of the art display of engineering. What’s not to love when alarm clocks, sprockets, furniture and even boiling tea pots all work together in a lovely dance, ultimately ending in lighting a candle or something like that. Today, I’d like to share a really cool Rube Goldberg contraption, this time, one that works mainly with light and optical devices. The video was designed as an advertisement for optical internet service au Hikari from Japan.