Pythagoras Switch

Pythagoras Switch (“Pitagora Suicchi” / “ピタゴラスイッチ” in Japanese) is part of an educational TV program for children in Japan, and features a domino effect that usually finishes with the display of the “Pitagora Suicchi” logo.
Not sure if true, but I've heard the domino effects are designed and build by professors at famous Japanese universities, using objects from around their offices. Such a cool job - I wish I was a University professor.