This is the slowest Rube Goldberg Machine in the World using a Turtle!! br br Field Day Presents inventor Bob Partington to a new audience, you guys! Bob is an inventor, director and TV personality, you’ve probably seen some of his work in commercials but never knew it was him. So we wanted to spotlight his unique genius in one of his first big forays into YouTube. See as Bob brings together some classically slow moving things, like grass growing and a turtle crossing the finish line, to create the slowest Rube Goldberg machine ever.