As huge fans of Rube Goldberg machines, we’ve tried to make our own Pitagora Suitchi-style contraptions before, but are still working towards the kind of success that YouTuber 10813panaki has had. Watch this collection of homemade chain reactions with familiar toys and stuff from around the house.

How do they make that look so easy? Lots of not-so-easy trial and error! Check out this single contraption in a series of videos that reveal just a glimpse of how successful chain reactions have many unsuccessful runs:

File under: things that take practice.

Related watching: The original short films from Japan’s NHK educational TV show, Pitagora Suitchi (Pythagora Switch) and more chain reactions.

via @MrDanMor.

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