I had to share this. I've always found Rube Goldberg machines ridiculously entertaining. They also show you a lot about physics, so where can you go wrong? Besides the time lost in taking the longest way possible to do everything, of course. The Purdue Society of Professional Engineers broke the world record by building the world' largest functional Rube Goldberg machine. What is its function? you ask. To pop a balloon in no fewer than 300 steps.
Hold on to your seats, because this is going to rock.