Pitagora Suiichi!

[octothorpe]

For those of you who have not seen these, "Incredible Machine" contraptions, you should check out:

http://www.bestofgooglevideo.com/video.php?video=218

Fast forward through the Anime ending clip 9about a minute or so... it has nothing to do with this.

Oh, and the translation is roughly "Pythagoras Switch"