Purdue Sets World Record with Largest Rube Goldberg Machine Congratulations to the Purdue Society of Professional Engineers team. This weekend, the team broke its own world record for the Largest Functional Rube Goldberg Machine. The invention took only 300 steps to blow up and pop a balloon. Related posts: The World’s Most Complicated Rube Goldberg Machine The World’s Best Engineering Schools MIT Machine Shop Videos Out of a Writer’s Imagination Came an Interactive World